- Comparative transcriptome analysis reveals significant differences in gene expression and signalling pathways between developmental and dark/starvation-induced senescence in Arabidopsis
Warwick HRI, University of Warwick, Wellesbourne CV35 9EF, UK
Plant J 42:567-85. 2005
..leaf senescence with those identified, when senescence is artificially induced in leaves induced to senesce by darkness or during sucrose starvation-induced senescence in cell suspension cultures, has shown not only similarities but ..
- Rhythmic growth explained by coincidence between internal and external cues
Section of Plant Biology, College of Biological Sciences, University of California, Davis, One Shields Avenue, Davis, California 95616, USA
Nature 448:358-61. 2007
..This interaction may serve as a paradigm for understanding how endogenous and environmental signals cooperate to control other processes...
- Hedgehog signalling controls eye degeneration in blind cavefish
Department of Biology, University of Maryland, College Park, Maryland 20742, USA
Nature 431:844-7. 2004
..These features can be mimicked in surface fish by twhh and/or shh overexpression, supporting the role of hh signalling in the evolution of cavefish eye regression...
- Ribosome and transcript copy numbers, polysome occupancy and enzyme dynamics in Arabidopsis
Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, Potsdam Golm, Germany
Mol Syst Biol 5:314. 2009
Plants are exposed to continual changes in the environment. The daily alternation between light and darkness results in massive recurring changes in the carbon budget, and leads to widespread changes in transcript levels...
- Molecular basis of seasonal time measurement in Arabidopsis
Marcelo J Yanovsky
The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, USA
Nature 419:308-12. 2002
- Plant circadian clocks increase photosynthesis, growth, survival, and competitive advantage
Antony N Dodd
Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
Science 309:630-3. 2005
..This explains why plants gain advantage from circadian control...
- Evolution of a behavioral shift mediated by superficial neuromasts helps cavefish find food in darkness
Department of Biology, University of Maryland, College Park, 20742, USA
Curr Biol 20:1631-6. 2010
How cave animals adapt to life in darkness is a poorly understood aspect of evolutionary biology ...
- Quantitative x-ray dark-field computed tomography
Physik Department, Technische Universitat Munchen, 85748 Garching, Germany
Phys Med Biol 55:5529-39. 2010
- Multiple phytochrome-interacting bHLH transcription factors repress premature seedling photomorphogenesis in darkness
Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
Curr Biol 18:1815-23. 2008
..in colonizing the land was the evolution of a developmental strategy, termed skotomorphogenesis, whereby postgerminative seedlings emerging from buried seed grow vigorously upward in the subterranean darkness toward the soil surface.
- Resetting central and peripheral circadian oscillators in transgenic rats
NSF Center for Biological Timing and Department of Biology, University of Virginia, Charlottesville, VA 22903-2477, USA
Science 288:682-5. 2000
- Darkness induces mobility, and saturation deficit limits questing duration, in the tick Ixodes ricinus
Jean Luc Perret
Institute of Zoology, University of Neuchatel, Rue Emile Argand 11, 2007 Neuchatel, Switzerland
J Exp Biol 206:1809-15. 2003
..Almost all locomotor activities of I. ricinus occurred during darkness under either a 14 h:10 h L:D or a 8 h:4 h L:D cycle. We established that all life stages of I...
- Regressive evolution in Astyanax cavefish
William R Jeffery
Department of Biology, University of Maryland, College Park, Maryland 20742, USA
Annu Rev Genet 43:25-47. 2009
A diverse group of animals, including members of most major phyla, have adapted to life in the perpetual darkness of caves. These animals are united by the convergence of two regressive phenotypes, loss of eyes and pigmentation...
- Constitutive expression of the CIRCADIAN CLOCK ASSOCIATED 1 (CCA1) gene disrupts circadian rhythms and suppresses its own expression
Z Y Wang
Department of Molecular, Cell, and Developmental Biology, UCLA, Los Angeles, California 90095 1606, USA
Cell 93:1207-17. 1998
..Furthermore, the expression of both endogenous CCA1 and the related LHY gene was suppressed. Our results suggest that CCA1 is a part of a feedback loop that is closely associated with the circadian clock in Arabidopsis...
- Molecular and photosynthetic responses to prolonged darkness and subsequent acclimation to re-illumination in the diatom Phaeodactylum tricornutum
Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
PLoS ONE 8:e58722. 2013
..When returned to the photic zone after experiencing longer periods in darkness, mechanisms exist that enable the diatoms both to survive sudden light exposure and immediately utilize the ..
- Impacts of drought on leaf respiration in darkness and light in Eucalyptus saligna exposed to industrial-age atmospheric CO₂ and growth temperature
Plant Sciences Division, Research School of Biology, Building 46, The Australian National University, Canberra, ACT 0200, Australia
New Phytol 190:1003-18. 2011
..Rates of R in darkness (R(dark) ) and light (R(light) ), photosynthesis (A) and related leaf traits (mass : area relationships, and ..
- Scototaxis as anxiety-like behavior in fish
Laboratório de Neurociências e Comportamento, Instituto de Ciencias Biologicas, Universidade Federal do Para, Belem, Brazil
Nat Protoc 5:209-16. 2010
..When individual animals are exposed to the apparatus on only one occasion, results can be obtained in 20 min per fish...
- Gating of the rapid shade-avoidance response by the circadian clock in plants
Michael G Salter
Department of Biology, University of Leicester, Leicester LE1 7RH, UK
Nature 426:680-3. 2003
..4). Furthermore PIL1 and TOC1 are both required for the accelerated growth associated with the shade-avoidance response...
- Seeing better at night: life style, eye design and the optimum strategy of spatial and temporal summation
E J Warrant
Institute for Advanced Study, Berlin, Germany
Vision Res 39:1611-30. 1999
..The opposite strategy is predicted for animals which need to see large, fast images. The predictions of the model agree very well with the known visual behaviours of nocturnal animals...
- Constant darkness induces IL-6-dependent depression-like behavior through the NF-κB signaling pathway
Francisco J Monje
Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, 1090 Vienna, Austria
J Neurosci 31:9075-83. 2011
..Here we investigate whether long-term light deprivation in the constant darkness (DD) paradigm affects depression-like behavior in mice and concomitantly modulates the levels of proinflammatory ..
- The mPer2 gene encodes a functional component of the mammalian circadian clock
Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
Nature 400:169-73. 1999
..for this mutation display a shorter circadian period followed by a loss of circadian rhythmicity in constant darkness. The mutation also diminishes the oscillating expression of both mPer1 and mPer2 in the suprachiasmatic nucleus, ..
- Image statistics and the perception of surface qualities
Human and Information Science Lab, NTT Communication Science Labs, Nippon Telegraph and Telephone Corporation, 3 1 Morinosato Wakamiya, Atsugi, 243 0198, Japan
Nature 447:206-9. 2007
..We suggest that there are neural mechanisms sensitive to skewed statistics, and that their outputs can be used in estimating surface properties...
- Influence of photoperiod duration and light-dark transitions on entrainment of Per1 and Per2 gene and protein expression in subdivisions of the mouse suprachiasmatic nucleus
Department of Neurohumoral Regulations, Institute of Physiology, v v i, Academy of Sciences of the Czech Republic, Czech Republic
Eur J Neurosci 30:1802-14. 2009
..The data indicate that the twilight photoperiod provides stronger synchronization among the individual SCN cell subpopulations than the rectangular one, and the effect is more pronounced under the short than under the long photoperiod...
- The chlorophyllases AtCLH1 and AtCLH2 are not essential for senescence-related chlorophyll breakdown in Arabidopsis thaliana
Institute of Plant Sciences, University of Bern, Altenbergrain 21, CH 3013 Bern, Switzerland
FEBS Lett 581:5517-25. 2007
..From our data we conclude that AtCLHs are not required for senescence-related chlorophyll breakdown in vivo and propose that genuine chlorophyllase has not yet been molecularly identified...
- Identification of a novel chloroplast protein AtNYE1 regulating chlorophyll degradation during leaf senescence in Arabidopsis
State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
Plant Physiol 144:1429-41. 2007
..These results collectively indicate that NYE1 plays an important regulatory role in Chl degradation during senescence by modulating pheophorbide a oxygenase activity...
- Nuclear targeted AtS40 modulates senescence associated gene expression in Arabidopsis thaliana during natural development and in darkness
Institute of Botany, University of Kiel, Olshausenstrasse 40, 24098 Kiel, Germany
Plant Mol Biol 73:379-90. 2010
..While in the wildtype expression of AtS40-3 was activated by darkness, in the s40-3a mutant the expression of AtS40-3 stayed at a low level...
- Nodulation enhances dark CO₂ fixation and recycling in the model legume Lotus japonicus
Mariangela N Fotelli
Department of Agricultural Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
J Exp Bot 62:2959-71. 2011
..A potential mechanism is proposed for reducing carbon losses during SNF by the direct reincorporation of CO(2) respired by nodules and the transport and metabolism of C-containing metabolites in hypergeous organs...
- Light experience and the development of behavioural lateralisation in chicks. II. Choice of familiar versus unfamiliar model social partner
Richard J Andrew
Centre for Neuroscience and Animal Behaviour, School of Biological, Biomedical and Molecular Sciences, Building W28, University of New England, Armidale, NSW 2351, Australia
Behav Brain Res 155:67-76. 2004
..The effects of exposure are discussed as an example of the generation of a range of behavioural phenotypes, which are sustained within a single population by varying or frequency-dependent selection...
- Rapid induction of distinct stress responses after the release of singlet oxygen in Arabidopsis
Roel G L op den Camp
Institute of Plant Sciences, Plant Genetics, Swiss Federal Institute of Technology, CH 8092 Zurich, Switzerland
Plant Cell 15:2320-32. 2003
..Its biological activity in Arabidopsis exhibits a high degree of specificity that seems to be derived from the chemical identity of this reactive oxygen species and/or the intracellular location at which it is generated...
- Impaired glycogen synthesis causes metabolic overflow reactions and affects stress responses in the cyanobacterium Synechocystis sp. PCC 6803
Humboldt Universitat zu Berlin, Institute of Biology Biochemistry of Plants, Chausseestrasse 117, Berlin, Germany
Microbiology 158:3032-43. 2012
..We first proved the role of glycogen as a respiratory substrate in periods of darkness, the role of glycogen as a reserve to survive starvation periods such as nitrogen depletion and the role of ..
- Differences of acute versus chronic ethanol exposure on anxiety-like behavioral responses in zebrafish
Department of Bioengineering and Therapeutic Sciences, Programs in Biological Sciences and Human Genetics, University of California, San Francisco, CA 94143 2811, United States
Behav Brain Res 219:234-9. 2011
- Cerebellum shapes hippocampal spatial code
Neurobiologie des Processus Adaptatifs UMR 7102, Navigation, Memory, and Aging ENMVI Team, Université Pierre et Marie Curie Centre National de la Recherche Scientifique CNRS, F 75005 Paris, France
Science 334:385-9. 2011
..Together, these results suggest that cerebellar PKC-dependent mechanisms are involved in processing self-motion signals essential to the shaping of hippocampal spatial representation...
- Rods-cones and melanopsin detect light and dark to modulate sleep independent of image formation
C M Altimus
Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA
Proc Natl Acad Sci U S A 105:19998-20003. 2008
..Thus, in addition to their known role in aligning circadian physiology with day and night, ipRGCs also relay light and dark information from both rod-cone and melanopsin-based pathways to modulate sleep and wakefulness...
- HY5, Circadian Clock-Associated 1, and a cis-element, DET1 dark response element, mediate DET1 regulation of chlorophyll a/b-binding protein 2 expression
Bridey B Maxwell
Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA
Plant Physiol 133:1565-77. 2003
..We conclude that DET1 represses the CAB2 promoter in the dark by regulating the binding of two factors, CAB2 DET1-associated factor 1 and Circadian Clock-Associated 1, to the DtRE...
- Differential coloring reveals that plastids do not form networks for exchanging macromolecules
Martin H Schattat
Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G2W1, Canada
Plant Cell 24:1465-77. 2012
- Light-induced structural and functional plasticity in Drosophila larval visual system
Howard Hughes Medical Institute, Department of Physiology and Biochemistry, University of California, San Francisco, 1550 4th Street, San Francisco, CA 94158, USA
Science 333:1458-62. 2011
- Gibberellins modulate light signaling pathways to prevent Arabidopsis seedling de-etiolation in darkness
Instituto de Biología Molecular y Celular de Plantas CSIC UPV, Av De Los Naranjos s n, 46022 Valencia, Spain
Plant J 53:324-35. 2008
..Seedlings deficient in gibberellin (GA) synthesis or signaling display a de-etiolated phenotype when grown in darkness, equivalent to the phenotype of cop1 mutants, which indicates that the switch between photo- and ..
- High bicarbonate assimilation in the dark by Arctic bacteria
Limnology Department of Ecology and Evolution, Uppsala University, Sweden
ISME J 4:1581-90. 2010
- Molecular analysis of photic inhibition of blood-feeding in Anopheles gambiae
W, Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, 615N Wolfe Street, Baltimore, MD 21205 2179, USA
BMC Physiol 8:23. 2008
- An integrative model for phytochrome B mediated photomorphogenesis: from protein dynamics to physiology
Centre for Biological Systems Analysis, University of Freiburg, Freiburg, Germany
PLoS ONE 5:e10721. 2010
..To monitor the intensity and spectral composition of the ambient light environment, plants have evolved multiple photoreceptors, including the red/far-red light-sensing phytochromes...
- Rhythmic expression of timeless: a basis for promoting circadian cycles in period gene autoregulation
Department of Neuroscience, University of Pennsylvania Medical Center, Philadelphia 19104, USA
Science 270:808-10. 1995
- Genetic and molecular analysis of an allelic series of cop1 mutants suggests functional roles for the multiple protein domains
T W McNellis
Department of Biology, Yale University, New Haven, Connecticut 06520 8104
Plant Cell 6:487-500. 1994
..1, is an essential regulatory molecule that plays a role in the repression of photomorphogenic development in darkness and in the ability of light-grown plants to respond to photoperiod, end-of-day far-red treatment, and ratio of ..
- Gibberellins repress photomorphogenesis in darkness
Instituto de Biologia Molecular y Celular de Plantas, Valencia 46022, Spain
Plant Physiol 134:1050-7. 2004
Plants undergo two different developmental programs depending on whether they are growing in darkness (skotomorphogenesis) or in the presence of light (photomorphogenesis)...
- Circadian adaptation to night-shift work by judicious light and darkness exposure
Diane B Boivin
Centre for Study and Treatment of Circadian Rhythms, Douglas Hospital Research Centre, Department of Psychiatry, McGill University, Montreal, Quebec H4H 1R3, Canada
J Biol Rhythms 17:556-67. 2002
..On work days, participants maintained regular sleep/wake schedules including a single 8-h sleep/darkness episode beginning 2 h after the end of the night shift...
- Light deprivation damages monoamine neurons and produces a depressive behavioral phenotype in rats
M M C Gonzalez
Department of Psychiatry, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 6100, USA
Proc Natl Acad Sci U S A 105:4898-903. 2008
..We recently showed that rats kept for 6 weeks in constant darkness (DD) have anatomical and behavioral features similar to depressed patients, including dysregulation of circadian ..
- Reactivation of ocular dominance plasticity in the adult visual cortex
Scuola Normale Superiore, 56100 Pisa, Italy
Science 298:1248-51. 2002
..The mature ECM is thus inhibitory for experience-dependent plasticity, and degradation of CSPGs reactivates cortical plasticity...
- Circadian rhythms confer a higher level of fitness to Arabidopsis plants
Rachel M Green
Department of Molecular, Cell and Developmental Biology, P O Box 160606, University of California Los Angeles, Los Angeles, CA 90095 1606, USA
Plant Physiol 129:576-84. 2002
..In addition, we demonstrate that two other circadian rhythm mutants, LHY-ox and elf3, have low-viability phenotypes. Our findings demonstrate the adaptive advantage of circadian rhythms in Arabidopsis...
- The genetic basis of singlet oxygen-induced stress responses of Arabidopsis thaliana
Institute of Plant Sciences, Plant Genetics, Swiss Federal Institute of Technology ETH, CH 8092 Zurich, Switzerland
Science 306:1183-5. 2004
..Instead, seedling lethality and growth inhibition of mature plants result from genetic programs that are activated after the release of singlet oxygen has been perceived by the plant...
- Patterns of expression and normalized levels of the five Arabidopsis phytochromes
Robert A Sharrock
Department of Plant Sciences and Plant Pathology, 119 ABS Building, Montana State University, Bozeman, Montana 59717 3140, USA
Plant Physiol 130:442-56. 2002
..These studies indicate that, with the exception of phytochrome A, the family of phytochrome photoreceptors in Arabidopsis constitutes a quite stable and very broadly distributed array of sensory molecules...
- The sunflower HD-Zip transcription factor HAHB4 is up-regulated in darkness, reducing the transcription of photosynthesis-related genes
Pablo A Manavella
Cátedra de Biología Celular y Molecular, Facultad de Bioquimica y Ciencias Biologicas, Universidad Nacional del Litoral, CONICET, CC 242 Ciudad Universitaria, 3000, Santa Fe, Argentina
J Exp Bot 59:3143-55. 2008
..In this study it is shown that the expression of HAHB4 is induced in darkness and quickly disappears when plants are exposed to light...
- Interaction of the response regulator ARR4 with phytochrome B in modulating red light signaling
Institut für Biologie II Botanik, Universitat Freiburg, Schanzlestrasse 1, 79104 Freiburg, Germany
Science 294:1108-11. 2001
..We propose that the response regulator 4 acts as an output element of a two-component system that modulates red light signaling on the level of the phytochrome B photoreceptor...
- The Arabidopsis mutant alh1 illustrates a cross talk between ethylene and auxin
Department of Plant Systems Biology, Flanders Interuniversity Institute for Biotechnology, Ghent University, KL Ledeganckstraat 35, B 9000 Ghent, Belgium
Plant Physiol 131:1228-38. 2003
..Together, these data indicate that alh1 is altered in the cross talk between ethylene and auxins, probably at the level of auxin transport...
- The changing biological roles of melatonin during evolution: from an antioxidant to signals of darkness, sexual selection and fitness
Dun Xian Tan
Department of Cellular and Structural Biology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
Biol Rev Camb Philos Soc 85:607-23. 2010
..These functions likely include the chemical expression of darkness in vertebrates, environmental tolerance in fungi and plants, sexual signaling in birds and fish, seasonal ..
- ATP consumption by mammalian rod photoreceptors in darkness and in light
Neuroscience Graduate Program, Zilkha Neurogenetic Institute, USC Keck School of Medicine, Los Angeles, CA 90089, USA
Curr Biol 18:1917-21. 2008
..In darkness, rods consume 10(8) ATP s(-1), about the same as Drosophila photoreceptors...
- The F-box protein slimb controls the levels of clock proteins period and timeless
Institut de Neurobiologie Alfred Fessard NGI, CNRS UPR 2216, Centre National de la Recherche Scientifique, av de la Terrasse, 91198 Gif sur Yvette, France
Nature 420:178-82. 2002
..In constant darkness, highly phosphorylated forms of the Per and Tim proteins are constitutively present in the mutants, indicating ..
- A transcription factor response element for gene expression during circadian night
Hiroki R Ueda
Molecular Medicine Laboratories, Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Company, Ltd, 21 Miyukigaoka, Tsukuba, Ibaraki 305 8585, Japan
Nature 418:534-9. 2002
..We profiled suprachiasmatic nuclei and liver genome-wide expression patterns under light/dark cycles and constant darkness. We determined transcription start sites of human orthologues for newly identified cycling genes and then ..
- Photic resetting in night-shift work: impact on nurses' sleep
Diane B Boivin
Centre for Study and Treatment of Circadian Rhythms, Douglas Mental Health University Institute, Department of Psychiatry, McGill University, Montreal, Quebec, Canada
Chronobiol Int 29:619-28. 2012
..All workers maintained stable 8-h daytime sleep/darkness schedules. The authors found that workers of the treatment group had daytime sleep episodes that lasted 7.1 ± ...
- Overexpression of Arabidopsis acyl-CoA binding protein ACBP3 promotes starvation-induced and age-dependent leaf senescence
School of Biological Sciences, University of Hong Kong, Pokfulam, Hong Kong, China
Plant Cell 22:1463-82. 2010
..Accelerated senescence in ACBP3-OEs is dependent on salicylic acid but not jasmonic acid signaling...
- Directionally selective calcium signals in dendrites of starburst amacrine cells
Max Planck Institute for Medical Research, Jahnstrasse 29, D 69120 Heidelberg, Germany
Nature 418:845-52. 2002
..This demonstrates that direction selectivity is computed locally in dendritic branches at a stage before ganglion cells...
- Wavelength-dependent effects of evening light exposure on sleep architecture and sleep EEG power density in men
Centre for Chronobiology, Psychiatric Univ Clinics, University of Basel, Switzerland
Am J Physiol Regul Integr Comp Physiol 290:R1421-8. 2006
..Our results can be interpreted in terms of an induction of a circadian phase delay and/or repercussions of a stronger alerting effect after blue light, persisting into the sleep episode...
- A daily palatable meal without food deprivation entrains the suprachiasmatic nucleus of rats
Departamento de Anatomia, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, Mexico DF, 04510, Mexico
Eur J Neurosci 22:2855-62. 2005
..Rats fed ad libitum, in constant darkness, received a palatable meal for 6 weeks starting in the middle of the subjective day...
- Strigolactones negatively regulate mesocotyl elongation in rice during germination and growth in darkness
Graduate School of Agricultural and Life Sciences, University of Tokyo, 1 1 1 Yayoi, Bunkyo, Tokyo, 113 8657 Japan
Plant Cell Physiol 51:1136-42. 2010
..We observed that mesocotyl elongation in darkness was greater in rice mutants defective in these genes than in the wild type...
- Light deprivation induces depression-like behavior and suppresses neurogenesis in diurnal mongolian gerbil (Meriones unguiculatus)
Benson Wui Man Lau
Department of Anatomy, The State Key Laboratory of Brain and Cognitive Sciences, Research Centre of Heart, Brain, Hormone and Healthy Aging, The University of Hong Kong, Pokfulam, Hong Kong SAR, PR China
Cell Transplant 20:871-81. 2011
..Additionally, the current experiment may offer a model for exploring the relationship among daylight exposure, circadian cycles, depressive behavior, and the underlying mechanisms...
- The cryb mutation identifies cryptochrome as a circadian photoreceptor in Drosophila
Department of Biology and National Science Foundation Center for Biological Timing, Brandeis University, Waltham, Massachusetts 02454, USA
Cell 95:681-92. 1998
..Levels of period or timeless clock gene products in the mutant are flat in daily light-dark cycles or constant darkness (although PER and TIM oscillate normally in temperature cycles)...
- Effects of threat of shock, shock electrode placement and darkness on startle
Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, USA
Int J Psychophysiol 28:223-31. 1998
..by an explicit threat cue signalling a period of shock anticipation and by two types of contextual stimuli; darkness and attaching the shock electrodes...
- Phototherapy and orange-tinted goggles for night-shift adaptation of police officers on patrol
Diane B Boivin
Centre for Study and Treatment of Circadian Rhythms, Douglas Mental Health University Institute, Department of Psychiatry, McGill University, Montreal, Quebec, Canada
Chronobiol Int 29:629-40. 2012
..to wide-spectrum bright light at night, orange-tinted goggles at sunrise, and maintenance of a regular sleep/darkness episode in the day...
- Light signalling mediated by phytochrome plays an important role in cold-induced gene expression through the C-repeat/dehydration responsive element (C/DRE) in Arabidopsis thaliana
Hyoun Joung Kim
Kumho Life and Environmental Science Laboratory, Puk Gu, Gwang Ju, Korea
Plant J 29:693-704. 2002
- Melatonin, hormone of darkness and more: occurrence, control mechanisms, actions and bioactive metabolites
Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Gottingen, Gottingen, Germany
Cell Mol Life Sci 65:2001-18. 2008
..Moreover, melatonin is a source of bioactive metabolites, such as 5-methoxytryptamine, N(1)-acetyl-N(2)-formyl-5-methoxykynuramine and N(1)-acetyl-5-methoxykynuramine...
- A critical role for ureides in dark and senescence-induced purine remobilization is unmasked in the Atxdh1 Arabidopsis mutant
The Jacob Blaustein Institutes for Desert Research, The Albert Katz Department of Dryland Biotechnologies, Ben Gurion University, PO Box 653, Beer Sheva 84105, Israel
Plant J 54:496-509. 2008
..We observed that in wild-type plants conditions of extended darkness or increasing leaf age caused induction of transcripts related to purine catabolism, resulting in marked ..
- Circadian phase-dependent modulation of cGMP-gated channels of cone photoreceptors by dopamine and D2 agonist
Gladys Y P Ko
Department of Biology and Biochemistry and Biological Clocks Program, University of Houston, Houston, Texas 77204 5001, USA
J Neurosci 23:3145-53. 2003
..from cultured chick cones were performed at circadian time (CT) 4-7 and CT 16-19 on the second day of constant darkness. Exposing intact cells to DA or the D2 agonist quinpirole for 2 hr before patch excision caused a significant ..
- High-level production of the industrial product lycopene by the photosynthetic bacterium Rhodospirillum rubrum
Guo shu Wang
Department of Bioenergetics, Institute of Biology, University of Stuttgart, Stuttgart, Germany
Appl Environ Microbiol 78:7205-15. 2012
..This study provides the first genetic proof that the R. rubrum CrtI produces lycopene exclusively as an end product...
- Night-time neuronal activation of Cluster N in a day- and night-migrating songbird
AG Neurosensorik, Institut für Biologie und Umweltwissenschaften, University of Oldenburg, D 26111 Oldenburg, Germany
Eur J Neurosci 32:619-24. 2010
- Darkness reduces BDNF expression in the visual cortex and induces repressive chromatin remodeling at the BDNF gene in both hippocampus and visual cortex
Nina N Karpova
Sigrid Jusélius Laboratory, Neuroscience Center, University of Helsinki, Helsinki, Finland
Cell Mol Neurobiol 30:1117-23. 2010
Neuronal activity regulates the expression of brain-derived neurotrophic factor (BDNF) in brain. In darkness, reduced neuronal activity in the visual cortex markedly decreases total BDNF transcription level in adult rats...
- It is darkness and not light: Depression-like behaviors of diurnal unstriped Nile grass rats maintained under a short photoperiod schedule
Department of Zoology, Tel Aviv University, Tel Aviv, Israel
J Neurosci Methods 186:165-70. 2010
- Differential effects of eyes open or closed in darkness on brain activation patterns in blind subjects
Department of Neurology, Klinikum Grosshadern, Ludwig Maximilians University, 81377 Munich, Germany
Neurosci Lett 466:30-4. 2009
..specific task conditions can be compared to a reference condition which is often eyes-open or eyes-closed in darkness without the execution of a specific task...
- Role of melanopsin in circadian responses to light
Norman F Ruby
Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA
Science 298:2211-3. 2002
..Although melanopsin is not essential for the circadian clock to receive photic input, it contributes significantly to the magnitude of photic responses...
- Alterations in serum melatonin and sleep in individuals in a sub-arctic region from winter to spring
Psychiatric Department, University of Tromsø, Norway
Int J Circumpolar Health 62:242-54. 2003
- Dark rearing alters the development of GABAergic transmission in visual cortex
Mind Brain Institute, Johns Hopkins University, Baltimore, Maryland 21218, USA
J Neurosci 22:8084-90. 2002
..Thus, sensory experience appears to play a permissive role in the maturation of intracortical GABAergic circuits...
- Directional control of hippocampal place fields
K J Jeffery
Department of Anatomy and Developmental Biology, University College London, UK
Exp Brain Res 117:131-42. 1997
..When room cues were present, distal visual cues predominated over internal cues in establishing place field orientation...
- Light during darkness and cancer: relationships in circadian photoreception and tumor biology
Samar A Jasser
Department of Neurology, Light Research Program, Thomas Jefferson University, 1025 Walnut Street, Suite 507, Philadelphia, PA 19107, USA
Cancer Causes Control 17:515-23. 2006
..Continued rigorous empirical inquiry into the physiology and clinical implications of these habitual, integrated aspects of life is highly warranted at this time...
- Response of the human circadian system to millisecond flashes of light
Jamie M Zeitzer
Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California, United States of America
PLoS ONE 6:e22078. 2011
..These data are consistent with the hypothesis that the circadian system can temporally integrate extraordinarily brief light exposures...
- Expression of the circadian clock-related gene pex in cyanobacteria increases in darkness and is required to delay the clock
International Graduate School of Arts and Sciences, Yokohama City University, Seto 22 2, Yokohama 236 0027, Japan
J Biol Rhythms 21:235-44. 2006
..Levels of pex mRNA increased significantly in a 12-h exposure to darkness. Western blotting with a GST-Pex antibody revealed a 13...
- Maltose is the major form of carbon exported from the chloroplast at night
Sean E Weise
Department of Botany, University of Wisconsin Madison, 430 Lincoln Drive, Madison, WI 53706 USA
Planta 218:474-82. 2004
..we determined that maltose was distributed equally between the chloroplast and cytosolic fractions during darkness. In the light there was approximately 24% more maltose in the cytosol than the chloroplast...
- Arabidopsis nitric oxide synthase1 is targeted to mitochondria and protects against oxidative damage and dark-induced senescence
Fang Qing Guo
Section of Cell and Developmental Biology, Division of Biological Sciences, University of California at San Diego, La Jolla, 92093 0116, USA
Plant Cell 17:3436-50. 2005
..These results demonstrate that NOS1 is a mitochondrial NOS that reduces ROS levels, mitigates oxidative damage, and acts as an antisenescence agent...
- Entrainment of the rat motor activity rhythm: effects of the light-dark cycle and physical exercise
Departament de Fisiologia, Divisió IV, Facultat de Farmacia, Universitat de Barcelona, Barcelona, Spain
Physiol Behav 70:227-32. 2000
..Rats were maintained first under LD cycles and afterwards under constant darkness (DD). Motor activity was recorded throughout the whole experiment by means of activity meters with infrared beams...
- Evidence from opsin genes rejects nocturnality in ancestral primates
Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, IL 60637, USA
Proc Natl Acad Sci U S A 102:14712-6. 2005
..This view is further supported by the distribution pattern of the middle-wavelength (M) and long-wavelength (L) opsin genes among prosimians...
- Effects of anxiolytics in zebrafish: similarities and differences between benzodiazepines, buspirone and ethanol
Daiane L Gebauer
Laboratório de Neuroquímica e Psicofarmacologia, Departamento de Biologia Celular e Molecular, Programa de Pós Graduação em Biologia Celular e Molecular, Faculdade de Biociencias, Pontificia Universidade Catolica do Rio Grande do Sul, Avenida Ipiranga, 6681, 90619 900 Porto Alegre, RS, Brazil
Pharmacol Biochem Behav 99:480-6. 2011
..Height in the tank and shoal cohesion seem to be useful behavioral parameters in discriminating different classes of these drugs...
- Genome-wide dynamic transcriptional profiling of the light-to-dark transition in Synechocystis sp. strain PCC 6803
Ryan T Gill
Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
J Bacteriol 184:3671-81. 2002
- Transient release of oxygenated volatile organic compounds during light-dark transitions in Grey poplar leaves
Institut fur Ionenphysik, Leopold Franzens Universitat Innsbruck, A 6020 Innsbruck, Austria
Plant Physiol 135:1967-75. 2004
- Biological clock in total darkness: the Clock/MOP3 circadian system of the blind subterranean mole rat
Institute of Evolution, University of Haifa, Mount Carmel, Haifa 31905, Israel
Proc Natl Acad Sci U S A 98:13751-6. 2001
..Understanding Clock/MOP3 function could highlight circadian mechanisms in blind mammals and their unique pattern as a result of adapting to life underground...
- Flow of energy in the outer retina in darkness and in light
Jonathan D Linton
Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
Proc Natl Acad Sci U S A 107:8599-604. 2010
..energy flows from these central mitochondria as phosphocreatine toward the photoreceptor's synaptic terminal in darkness. In light, it flows in the opposite direction as ATP toward the outer segment...
- Visual deprivation decreases somatic GAD65 puncta number on layer 2/3 pyramidal neurons in mouse visual cortex
Department of Biology, University of Maryland, College Park, 20742, USA
Neural Plast 2009:415135. 2009
..There was no change in GAD65-puncta volume or intensity. These results support the reorganization of inhibitory circuitry within layer 2/3 of visual cortex in response to changes in visual experience...
- Persistence of experience-induced homeostatic synaptic plasticity through adulthood in superficial layers of mouse visual cortex
Department of Biology, College of Chemical and Life Sciences, University of Maryland, College Park, Maryland 20742, USA
J Neurosci 27:6692-700. 2007
..Our results demonstrate that the superficial layers of adult mouse visual cortex retain the ability to undergo reversible experience-dependent homeostatic synaptic plasticity...
- The basic helix-loop-helix transcription factor PIF5 acts on ethylene biosynthesis and phytochrome signaling by distinct mechanisms
Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA
Plant Cell 19:3915-29. 2007
..data thus indicate that overexpressed PIF5 causes altered ethylene levels, which promote the triple response in darkness, whereas in the light, the interaction of photoactivated phyB with PIF5 causes degradation of the photoreceptor ..
- Isolation and characterization of rice phytochrome A mutants
Department of Plant Physiology, National Institute of Agrobiological Resources, Tsukuba, Ibaraki 305 8602, Japan
Plant Cell 13:521-34. 2001
- Melanopsin (Opn4) requirement for normal light-induced circadian phase shifting
Genomics Institute of the Novartis Research Foundation, 10675 John J Hopkins Drive, San Diego, CA 92121, USA
Science 298:2213-6. 2002
..entrain to a light/dark cycle and do not exhibit any overt defect in circadian activity rhythms under constant darkness. However, they display severely attenuated phase resetting in response to brief pulses of monochromatic light, ..
- A comparison of the expression patterns of several senescence-associated genes in response to stress and hormone treatment
L M Weaver
Dept of Biochemistry, University of Wisconsin at Madison, 53706, USA
Plant Mol Biol 37:455-69. 1998
..genes (SAGs) in attached and/or detached leaves was compared in response to age, dehydration, darkness, abscisic acid, cytokinin, and ethylene treatments...
- Light-regulated subcellular translocation of Drosophila TRPL channels induces long-term adaptation and modifies the light-induced current
Zoological Institute, Department of Cell and Neurobiology, University of Karlsruhe, 76128 Karlsruhe, Germany
Neuron 34:83-93. 2002
..background lights, and they respond to a wider range of light intensities, which fit them to function better in darkness or dim background illumination...
- Comparative study on nocturnal behavior of Aedes aegypti and Aedes albopictus
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Nagasaki 852 8523, Japan
J Med Entomol 42:312-8. 2005
..01 foot candle) in Ae. aegypti and >10 lx (approximately 1 foot candle) in Ae. albopictus. Complete darkness during the daytime deactivated the host-seeking activity of both species, irrespective of their increasing flight ..
- Light and darkness regulate melanopsin in the retinal ganglion cells of the albino Wistar rat
Department of Clinical Biochemistry, Bispebjerg Hospital, University of Copenhagen, DK 2400 Copenhagen NV, Denmark
J Mol Neurosci 27:147-55. 2005
..of melanopsin at the mRNA and protein level during a day/night cycle and during prolonged periods of light and darkness in the retina of albino Wistar rats...
- Visual deprivation alters development of synaptic function in inner retina after eye opening
Department of Ophthalmology, UCSF School of Medicine, San Francisco, CA 94143, USA
Neuron 32:439-49. 2001
..These findings indicate there is a degree of activity-dependent plasticity in the mammalian retina that has not been previously described...
- Rice tillering dwarf mutant dwarf3 has increased leaf longevity during darkness-induced senescence or hydrogen peroxide-induced cell death
Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Tokyo, Japan
Genes Genet Syst 82:361-6. 2007
Senescence or cell death in plant leaves is known to be inducible by darkness or H(2)O(2). When the Arabidopsis gene MAX2/ORE9 is disrupted, leaf senescence or cell death in response to the above stimuli is delayed...