J J Casal

Summary

Affiliation: Universidad de Buenos Aires
Country: Argentina

Publications

  1. pmc Missense mutation in the PAS2 domain of phytochrome A impairs subnuclear localization and a subset of responses
    Marcelo J Yanovsky
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Cell 14:1591-603. 2002
  2. ncbi request reprint Regulation of gene expression by light
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y CONICET, Buenos Aires, Argentina
    Int J Dev Biol 49:501-11. 2005
  3. doi request reprint Photoreceptor signaling networks in plant responses to shade
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and CONICET, 1417 Buenos Aires, Argentina
    Annu Rev Plant Biol 64:403-27. 2013
  4. pmc Conditional synergism between cryptochrome 1 and phytochrome B is shown by the analysis of phyA, phyB, and hy4 simple, double, and triple mutants in Arabidopsis
    J J Casal
    Departamento de Ecologia, Facultad de Agronomia, Universidad de Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Physiol 118:19-25. 1998
  5. ncbi request reprint Phytochromes, cryptochromes, phototropin: photoreceptor interactions in plants
    J J Casal
    IFEVA, Departamento de Ecologia, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Photochem Photobiol 71:1-11. 2000
  6. ncbi request reprint Two photobiological pathways of phytochrome A activity, only one of which shows dominant negative suppression by phytochrome B
    J J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Photochem Photobiol 71:481-6. 2000
  7. ncbi request reprint Light, phytochrome signalling and photomorphogenesis in Arabidopsis
    Jorge J Casal
    IFEVA, Faculty of Agronomy, University of Buenos Aires and National Research Council, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Photochem Photobiol Sci 2:625-36. 2003
  8. ncbi request reprint Environmental cues affecting development
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y Consejo Nacional de Investigaciones Científicas y Técnicas, Av San Martin 4453, 1417, Buenos Aires, Argentina
    Curr Opin Plant Biol 5:37-42. 2002
  9. pmc The serine-rich N-terminal domain of oat phytochrome a helps regulate light responses and subnuclear localization of the photoreceptor
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Plant Physiol 129:1127-37. 2002
  10. ncbi request reprint Hierarchical coupling of phytochromes and cryptochromes reconciles stability and light modulation of Arabidopsis development
    M A Mazzella
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Avenida San Martin 4453, 1417 Buenos Aires, Argentina
    Development 128:2291-9. 2001

Collaborators

Detail Information

Publications44

  1. pmc Missense mutation in the PAS2 domain of phytochrome A impairs subnuclear localization and a subset of responses
    Marcelo J Yanovsky
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Cell 14:1591-603. 2002
    ..We propose that the PAS2 domain of phytochrome A is necessary to initiate signaling in HIR but not in VLFR, likely via interaction with a specific partner...
  2. ncbi request reprint Regulation of gene expression by light
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y CONICET, Buenos Aires, Argentina
    Int J Dev Biol 49:501-11. 2005
    ..Some transcriptional regulators are shared by light, circadian and/or hormonal signalling circuits creating complex networks that interactively integrate environmental and endogenous cues...
  3. doi request reprint Photoreceptor signaling networks in plant responses to shade
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and CONICET, 1417 Buenos Aires, Argentina
    Annu Rev Plant Biol 64:403-27. 2013
    ....
  4. pmc Conditional synergism between cryptochrome 1 and phytochrome B is shown by the analysis of phyA, phyB, and hy4 simple, double, and triple mutants in Arabidopsis
    J J Casal
    Departamento de Ecologia, Facultad de Agronomia, Universidad de Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Physiol 118:19-25. 1998
    ....
  5. ncbi request reprint Phytochromes, cryptochromes, phototropin: photoreceptor interactions in plants
    J J Casal
    IFEVA, Departamento de Ecologia, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Photochem Photobiol 71:1-11. 2000
    ..Experiments under natural radiation are beginning to show that the interactions create a phototransduction network with emergent properties. This provides a more robust system for light perception in plants...
  6. ncbi request reprint Two photobiological pathways of phytochrome A activity, only one of which shows dominant negative suppression by phytochrome B
    J J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Photochem Photobiol 71:481-6. 2000
    ..We conclude that phyA is intrinsically able to initiate two discrete photoresponses even when a single end-point process is considered...
  7. ncbi request reprint Light, phytochrome signalling and photomorphogenesis in Arabidopsis
    Jorge J Casal
    IFEVA, Faculty of Agronomy, University of Buenos Aires and National Research Council, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Photochem Photobiol Sci 2:625-36. 2003
    ..Here we describe the connection between different features of the phytochrome signalling network and the versatile relationship between light signals and physiological outputs shown by phytochromes...
  8. ncbi request reprint Environmental cues affecting development
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y Consejo Nacional de Investigaciones Científicas y Técnicas, Av San Martin 4453, 1417, Buenos Aires, Argentina
    Curr Opin Plant Biol 5:37-42. 2002
    ..The elements of the circuitry, their connections, and their functional significance are being uncovered thanks to the analysis of genetic interactions, protein-protein interactions, sub-cellular localisation and transcriptome patterns...
  9. pmc The serine-rich N-terminal domain of oat phytochrome a helps regulate light responses and subnuclear localization of the photoreceptor
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Plant Physiol 129:1127-37. 2002
    ..We propose that the N-terminal serine-rich domain of phyA is involved in channeling downstream signaling via the VLFR or HIR pathways in different cellular contexts...
  10. ncbi request reprint Hierarchical coupling of phytochromes and cryptochromes reconciles stability and light modulation of Arabidopsis development
    M A Mazzella
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Avenida San Martin 4453, 1417 Buenos Aires, Argentina
    Development 128:2291-9. 2001
    ....
  11. ncbi request reprint Resetting of the circadian clock by phytochromes and cryptochromes in Arabidopsis
    M J Yanovsky
    IFEVA, Faculty of Agronomy, University of Buenos Aires, Argentina
    J Biol Rhythms 16:523-30. 2001
    ..The signaling proteins FHY1 and FHY3 are shared by phyA-mediated photomorphogenesis and phyA input to the clock...
  12. ncbi request reprint CP3 is involved in negative regulation of phytochrome A signalling in Arabidopsis
    Matías H Quinn
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and CONICET, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Planta 215:557-64. 2002
    ..The phenotype under pulsed FR but not the adult phenotype required phyA. We propose that CP3 is involved in the negative regulation of the signalling pathway that saturates with transient activation of phyA...
  13. pmc Phytochrome A enhances the promotion of hypocotyl growth caused by reductions in levels of phytochrome B in its far-red-light-absorbing form in light-grown Arabidopsis thaliana
    J J Casal
    Departamento de Ecologia, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Plant Physiol 112:965-73. 1996
    ..A product of phyA is therefore proposed to enhance the hypocotyl-growth response to decreases in phyB in FR-light-absorbing form in light grown seedlings...
  14. pmc Brassinosteroid mutants uncover fine tuning of phytochrome signaling
    Laura G Luccioni
    IFEVA, Faculty of Agronomy, University of Buenos Aires and National Research Council, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Physiol 128:173-81. 2002
    ..We propose that the opposite regulation of VLFR versus LFR and HIR could be part of a context-dependent mechanism of adjustment of sensitivity to light signals...
  15. ncbi request reprint The VLF loci, polymorphic between ecotypes Landsberg erecta and Columbia, dissect two branches of phytochrome A signal transduction that correspond to very-low-fluence and high-irradiance responses
    M J Yanovsky
    Departamento de Ecologia, Facultad de Agronomia, Universidad de Buenos Aires, Argentina
    Plant J 12:659-67. 1997
    ..This is the first application of the analysis of quantitative trait loci polymorphic between ecotypes to dissect transduction chains of environmental signals...
  16. pmc New Arabidopsis recombinant inbred lines (Landsberg erecta x Nossen) reveal natural variation in phytochrome-mediated responses
    Teresa M Alconada Magliano
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y Consejo Nacional de Investigaciones Científicas y Técnicas, 1417 Buenos Aires, Argentina
    Plant Physiol 138:1126-35. 2005
    ..Such flexibility in combination of responses is observed among accessions and could aid in the adjustment to different microenvironments...
  17. pmc GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock
    Karina Andrea Oliverio
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and Consejo Nacional de Investigaciones Científicas y Técnicas, 1417 Buenos Aires, Argentina
    Plant Physiol 144:495-502. 2007
    ..We conclude that while GI does not affect the high-irradiance responses of phyA, it does affect phyA-mediated very-low-fluence responses via mechanisms that do not obviously involve its circadian functions...
  18. ncbi request reprint Promotion of photomorphogenesis by COP1
    Hernan E Boccalandro
    I F E V A, Faculty of Agronomy, University of Buenos Aires, Av San Martin 4453, 1417, Buenos Aires, Argentina
    Plant Mol Biol 56:905-15. 2004
    ..We hypothesize that COP1 could be involved in degradation of negative regulators of photomorphogenesis or in transcriptional activation, as observed for some E3 ligases in mammalian development...
  19. ncbi request reprint The serine-rich N-terminal region of Arabidopsis phytochrome A is required for protein stability
    Santiago A Trupkin
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and CONICET, Av San Martin 4453, 1417, Buenos Aires, Argentina
    Plant Mol Biol 63:669-78. 2007
    ..These findings do not support the involvement of the serine-rich region in negative regulation but they are consistent with a recent report suggesting that phyA turnover is regulated by phosphorylation...
  20. pmc Finding unexpected patterns in microarray data
    Susana Perelman
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Physiol 133:1717-25. 2003
    ..The unconventional combination of standard descriptive multivariate methods offers a previously unrecognized tool to uncover unexpected information...
  21. pmc Increased phytochrome B alleviates density effects on tuber yield of field potato crops
    Hernan E Boccalandro
    IFEVA, Faculty of Agronomy, University of Buenos Aires, Avenida San Martin 4453, 1417 Buenos Aires, Argentina
    Plant Physiol 133:1539-46. 2003
    ..We propose that enhanced PHYB expression could be used in breeding programs to shift optimum planting densities to higher levels...
  22. pmc Arabidopsis thaliana life without phytochromes
    Barbara Strasser
    Fundacion Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1405BWE Buenos Aires, Argentina
    Proc Natl Acad Sci U S A 107:4776-81. 2010
    ..We conclude that Arabidopsis development is stalled at several points in the presence of light suitable for photosynthesis but providing no photomorphogenic signal...
  23. pmc PHYTOCHROME KINASE SUBSTRATE1 regulates root phototropism and gravitropism
    Hernan E Boccalandro
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and Consejo Nacional de Investigaciones Científicas y Técnicas, 1417, Buenos Aires, Argentina
    Plant Physiol 146:108-15. 2008
    ..After a phyA-dependent increase in its expression, PKS1 positively affects root phototropism and both effects contribute to negative curvature in response to unilateral blue light...
  24. pmc Comparative genomic analysis of light-regulated transcripts in the Solanaceae
    Mariana Rutitzky
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and CONICET, Buenos Aires, Argentina
    BMC Genomics 10:60. 2009
    ..Here we compared transcriptional responses to light in different species of the Solanaceae to investigate common as well as species-specific changes in gene expression...
  25. pmc Synergism of red and blue light in the control of Arabidopsis gene expression and development
    Romina Sellaro
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, and CONICET, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Curr Biol 19:1216-20. 2009
    ..The persistence of the light-derived signal into the night commits the seedling to a morphogenetic and physiological program consistent with a photosynthetic lifestyle...
  26. pmc A constitutive shade-avoidance mutant implicates TIR-NBS-LRR proteins in Arabidopsis photomorphogenic development
    Ana Faigón-Soverna
    IFEVA Facultad de Agronomía, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Cientificas y Tecnicas, 1417 Buenos Aires, Argentina
    Plant Cell 18:2919-28. 2006
    ..In Drosophila melanogaster and Caenorhabditis elegans, TIR domain proteins are implicated in both development and immunity. Thus, the dual role of the TIR domain is conserved across kingdoms...
  27. pmc Bell-like homeodomain selectively regulates the high-irradiance response of phytochrome A
    Roberto J Staneloni
    Fundacion Instituto Leloir, Instituto de Investigaciones Bioquímicas Buenos Aires, Consejo Nacional de Investigaciones Cientificas y Técnicas and Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1405BWE Buenos Aires, Argentina
    Proc Natl Acad Sci U S A 106:13624-9. 2009
    ..BLH1 enhanced BLH1 expression and its promotion by FR. We conclude that BLH1 specifically regulates HIR and not VLFR of phytochrome A...
  28. pmc The Cape Verde Islands allele of cryptochrome 2 enhances cotyledon unfolding in the absence of blue light in Arabidopsis
    Javier F Botto
    IFEVA, Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Agronomía, Universidad de Buenos Aires, Avenida San Martin 4458, 1417 Buenos Aires, Argentina
    Plant Physiol 133:1547-56. 2003
    ..We conclude that the blue light photoreceptor cryptochrome 2 can modulate seedling photomorphogenesis in the absence of blue light. In addition to the nuclear loci, we identified cytoplasmic effects on seedling de-etiolation...
  29. doi request reprint Autophagy regulated by day length determines the number of fertile florets in wheat
    Hernan O Ghiglione
    Bioquimica, Facultad de Agronomia, Universidad de Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Plant J 55:1010-24. 2008
    ..We propose a model in which developmentally generated sugar starvation triggers floret autophagy, and long days intensify these processes due to the increased carbohydrate consumption caused by the accelerated plant development...
  30. ncbi request reprint Pre-germination seed-phytochrome signals control stem extension in dark-grown Arabidopsis seedlings
    Teresa Alconada Magliano
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, Avenida San Martin 4453, 1417 Buenos Aires, Argentina
    Photochem Photobiol Sci 3:612-6. 2004
    ..We propose that trans-developmental phase signals could help plants to adjust to their environment...
  31. pmc Phytochrome B enhances photosynthesis at the expense of water-use efficiency in Arabidopsis
    Hernan E Boccalandro
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires, and Consejo Nacional de Investigaciones Cientificas y Tecnicas, 1417 Buenos Aires, Argentina
    Plant Physiol 150:1083-92. 2009
    ....
  32. pmc Suppression of pleiotropic effects of functional cryptochrome genes by Terminal Flower 1
    Ana Sabrina Buchovsky
    IFEVA, Fisiología Vegetal, Facultad de Agronomia, Universidad de Buenos Aires, Buenos Aires, Argentina
    Genetics 180:1467-74. 2008
    ..Thus, normal CRY control of photoperiod-dependent flowering and hypocotyl growth inhibition requires a functional TFL1 gene...
  33. ncbi request reprint Signalling for developmental plasticity
    Jorge J Casal
    IFEVA, Faculty of Agronomy, University of Buenos Aires, Av San Martin 4453, 1417 Buenos Aires, Argentina
    Trends Plant Sci 9:309-14. 2004
  34. doi request reprint Multiple dimensions in plant signal transduction: an overview
    Jorge J Casal
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires y CONICET, Av San Martin 4453, Buenos Aires, 1417, Argentina
    Methods Mol Biol 479:1-16. 2009
    ..Here we provide an overview of this multiplicity and its functional significance...
  35. pmc Maize leaves turn away from neighbors
    Gustavo Angel Maddonni
    Departamento de Producción Vegetal, Universidad de Buenos Aires, Avenue San Martín 4453, C1417DSE, Buenos Aires, Argentina
    Plant Physiol 130:1181-9. 2002
    ..These observations contradict the current view that phytochrome-mediated responses to low R/FR are a relic from wild conditions, detrimental for crop yield...
  36. doi request reprint Balancing forces in the photoperiodic control of flowering
    Sabrina E Sanchez
    IFEVA, Facultad de Agronomia, Universidad de Buenos Aires and Consejo Nacional de Investigaciones Científicas y Técnicas, Av San Martin 4453, 1417, Buenos Aires, Argentina
    Photochem Photobiol Sci 10:451-60. 2011
    ..We propose that fine tuning of flowering time depends on the balance of a hierarchy of multiple points of action of photoperiod on the network controlling flowering...
  37. pmc PHYTOCHROME KINASE SUBSTRATE4 modulates phytochrome-mediated control of hypocotyl growth orientation
    Isabelle Schepens
    Center for Integrative Genomics, University of Lausanne, 1015 Lausanne, Switzerland
    Plant Physiol 147:661-71. 2008
    ..This hypothesis is supported by the phenotype of PKS4 overexpressers. Together with previous findings, these results indicate that the PKS family plays important functions during light-regulated tropic growth responses...
  38. ncbi request reprint SPA1, a component of phytochrome A signal transduction, regulates the light signaling current
    Rosalinde Louise Baumgardt
    Department of Plant Developmental and Molecular Biology, University of Dusseldorf, Geb 26 03 02, Germany
    Planta 215:745-53. 2002
    ..spa1 mutations also enhanced the HIRs of anthocyanin accumulation and of phyA-mediated responsivity amplification towards phyB. Thus, our results suggest that spa1 mutations amplify both the phyA-mediated VLFR and the HIR...
  39. pmc Phytochrome control of the Arabidopsis transcriptome anticipates seedling exposure to light
    Maria Agustina Mazzella
    Instituto de Investigaciones en Ingenieria Genetica y Biologia Molecular, 1428 Buenos Aires, Argentina
    Plant Cell 17:2507-16. 2005
    ..We propose that, via changes in ABI3 expression, light, perceived mainly by phyB in the seed, generates a downstream transdevelopmental phase signal that preconditions the seedling to its most likely environment...
  40. pmc Mapping quantitative trait loci in multiple populations of Arabidopsis thaliana identifies natural allelic variation for trichome density
    V Vaughan Symonds
    Section of Molecular, Cell and Developmental Biology, Institute for Cellular and Molecular Biology, University of Texas, 78712, USA
    Genetics 169:1649-58. 2005
    ..More generally, these findings suggest that the use of multiple populations holds great promise for better understanding the genetic architecture of natural variation...
  41. pmc A growth regulatory loop that provides homeostasis to phytochrome a signaling
    Patricia Lariguet
    Department of Molecular Biology, 1211 Geneve 4, Switzerland
    Plant Cell 15:2966-78. 2003
    ..In accordance with this idea, PKS1 effects are larger in the pks2 background (and vice versa). Moreover, the two proteins can interact with each other, and PKS2 negatively regulates PKS1 protein levels specifically under VLFR conditions...
  42. ncbi request reprint Phenotypic characterization of a photomorphogenic mutant
    Christian Fankhauser
    Department of Molecular Biology, 30 quai E Ansermet, 1211 Geneve 4, Switzerland
    Plant J 39:747-60. 2004
    ..In this paper, we outline the principal and easiest experiments that can be performed to obtain a first indication about the nature of the photobiological defect in a given mutant...
  43. pmc FHY1 mediates nuclear import of the light-activated phytochrome A photoreceptor
    Thierry Genoud
    Centre for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
    PLoS Genet 4:e1000143. 2008
    ..Our data suggest that the mechanism uncovered in Arabidopsis is conserved in higher plants. Moreover, this mechanism allows us to propose a model explaining why phyA needs a specific nuclear import pathway...
  44. ncbi request reprint Functional and biochemical analysis of the N-terminal domain of phytochrome A
    Julieta L Mateos
    Max Planck Institut fur Bioanorganische Chemie, Postfach 101356, D 45413 Mülheim an der Ruhr, Germany
    J Biol Chem 281:34421-9. 2006
    ..Taken together, these studies highlight the role of the N-terminal domain of phyA in signaling and of distant residues of the GAF subdomain in the regulation of phytochrome bilin-lyase activity...