Genomes and Genes
Experts and Doctors on arabidopsis proteins in Switzerland
Topic: arabidopsis proteins
Publications109 found, 100 shown here
- Leroy O, Hennig L, Breuninger H, Laux T, Kohler C. Polycomb group proteins function in the female gametophyte to determine seed development in plants. Development. 2007;134:3639-48 pubmed..Thus, FIS-mediated expression patterns established in the female gametophyte can impact on seed development, establishing fis mutants as true female gametophytic maternal-effect mutants. ..
- Kohler C, Page D, Gagliardini V, Grossniklaus U. The Arabidopsis thaliana MEDEA Polycomb group protein controls expression of PHERES1 by parental imprinting. Nat Genet. 2005;37:28-30 pubmed..Because Polycomb group proteins control parental imprinting in mammals as well, the independent recruitment of similar protein machineries for the imprinting of genes is a notable example of convergent evolution. ..
- Bouchard R, Bailly A, Blakeslee J, Oehring S, Vincenzetti V, Lee O, et al. Immunophilin-like TWISTED DWARF1 modulates auxin efflux activities of Arabidopsis P-glycoproteins. J Biol Chem. 2006;281:30603-12 pubmed..Our data suggest a novel mode of PGP regulation via FK506-binding protein-like immunophilins, implicating possible alternative strategies to overcome multidrug resistance. ..
- Beuchat J, Scacchi E, Tarkowska D, Ragni L, Strnad M, Hardtke C. BRX promotes Arabidopsis shoot growth. New Phytol. 2010;188:23-9 pubmed publisher..In summary, our results demonstrate a ubiquitous, although quantitatively variable role of BRX in modulating the growth rate in both the root and shoot. ..
- Ochsenbein C, Przybyla D, Danon A, Landgraf F, Gobel C, Imboden A, et al. The role of EDS1 (enhanced disease susceptibility) during singlet oxygen-mediated stress responses of Arabidopsis. Plant J. 2006;47:445-56 pubmed..This program includes not only responses to oxidative stress, but also responses known to be activated during plant-pathogen interactions and wounding. ..
- Breuillaud L, Rossetti C, Meylan E, MÃ©rinat C, Halfon O, Magistretti P, et al. Deletion of CREB-regulated transcription coactivator 1 induces pathological aggression, depression-related behaviors, and neuroplasticity genes dysregulation in mice. Biol Psychiatry. 2012;72:528-36 pubmed publisher..Collectively, these findings support a role for the CRTC1-CREB pathway in mood disorders etiology and behavioral response to antidepressants and identify CRTC1 as an essential coactivator of genes involved in mood regulation. ..
- Kovermann P, Meyer S, Hortensteiner S, Picco C, Scholz Starke J, Ravera S, et al. The Arabidopsis vacuolar malate channel is a member of the ALMT family. Plant J. 2007;52:1169-80 pubmed
- Hennig L, Derkacheva M. Diversity of Polycomb group complexes in plants: same rules, different players?. Trends Genet. 2009;25:414-23 pubmed publisher..A picture is emerging in which the general mechanisms of PcG protein function are well conserved between animals and plants, but in which individual players have been exchanged during evolution. ..
- Scacchi E, Salinas P, Gujas B, Santuari L, Krogan N, Ragni L, et al. Spatio-temporal sequence of cross-regulatory events in root meristem growth. Proc Natl Acad Sci U S A. 2010;107:22734-9 pubmed publisher..The complex equilibrium of this regulatory module might represent a universal switch in the transition toward differentiation in various developmental contexts...
- Hersch M, Lorrain S, de Wit M, Trevisan M, Ljung K, Bergmann S, et al. Light intensity modulates the regulatory network of the shade avoidance response in Arabidopsis. Proc Natl Acad Sci U S A. 2014;111:6515-20 pubmed publisher..Our data suggest that this latter signal is less robust, which may reflect a cost-to-robustness tradeoff, a system trait long recognized by engineers and forming the basis of information theory. ..
- Kutter C, Schöb H, Stadler M, Meins F, Si Ammour A. MicroRNA-mediated regulation of stomatal development in Arabidopsis. Plant Cell. 2007;19:2417-29 pubmed..These findings and the nonoverlapping patterns of AGL16 mRNA and miR824 localization led us to propose that the miR824/AGL16 pathway functions in the satellite meristemoid lineage of stomatal development. ..
- Kessler S, Shimosato Asano H, Keinath N, Wuest S, Ingram G, Panstruga R, et al. Conserved molecular components for pollen tube reception and fungal invasion. Science. 2010;330:968-71 pubmed publisher..Homozygous fer mutants also display PM resistance, revealing a new function for FER and suggesting that conserved components, such as FER and distinct MLO proteins, are involved in both PT reception and PM infection. ..
- Heijde M, Binkert M, Yin R, Ares Orpel F, Rizzini L, Van De Slijke E, et al. Constitutively active UVR8 photoreceptor variant in Arabidopsis. Proc Natl Acad Sci U S A. 2013;110:20326-31 pubmed publisher..We conclude that UVR8(W285A) is a constitutively active UVR8 photoreceptor variant in Arabidopsis, as is consistent with the crucial importance of monomer formation and COP1 binding for UVR8 activity. ..
- Pruzinska A, Tanner G, Anders I, Roca M, Hortensteiner S. Chlorophyll breakdown: pheophorbide a oxygenase is a Rieske-type iron-sulfur protein, encoded by the accelerated cell death 1 gene. Proc Natl Acad Sci U S A. 2003;100:15259-64 pubmed..PaO expression correlated positively with senescence, but the enzyme appeared to be post-translationally regulated as well. ..
- Endler A, Meyer S, Schelbert S, Schneider T, Weschke W, Peters S, et al. Identification of a vacuolar sucrose transporter in barley and Arabidopsis mesophyll cells by a tonoplast proteomic approach. Plant Physiol. 2006;141:196-207 pubmed
- Rouached H, Secco D, Arpat A. Getting the most sulfate from soil: Regulation of sulfate uptake transporters in Arabidopsis. J Plant Physiol. 2009;166:893-902 pubmed publisher..Such progress is important to enable biotechnological and agronomic strategies aimed at enhancing sulfate uptake and improving crop yield in S-deficient soils. ..
- Meskauskiene R, Würsch M, Laloi C, Vidi P, Coll N, Kessler F, et al. A mutation in the Arabidopsis mTERF-related plastid protein SOLDAT10 activates retrograde signaling and suppresses (1)O(2)-induced cell death. Plant J. 2009;60:399-410 pubmed publisher..The results of this work reveal the unexpected complexity of what is commonly referred to as 'plastid signaling'. ..
- Guenot B, Bayer E, Kierzkowski D, Smith R, Mandel T, Zádníková P, et al. Pin1-independent leaf initiation in Arabidopsis. Plant Physiol. 2012;159:1501-10 pubmed publisher..Thus, phyllotaxis appears to be more complex than suggested by current mechanistic models. ..
- Chevalier D, Batoux M, Fulton L, Pfister K, Yadav R, Schellenberg M, et al. STRUBBELIG defines a receptor kinase-mediated signaling pathway regulating organ development in Arabidopsis. Proc Natl Acad Sci U S A. 2005;102:9074-9 pubmed..These genetic data also indicate that SUB carries a catalytically inactive kinase domain. The SUB receptor-like kinase may therefore signal in an atypical fashion. ..
- Mirouze M, Reinders J, Bucher E, Nishimura T, Schneeberger K, Ossowski S, et al. Selective epigenetic control of retrotransposition in Arabidopsis. Nature. 2009;461:427-30 pubmed publisher..Our results demonstrate that epigenetic control of retrotransposons extends beyond transcriptional suppression and can be individualized for particular elements. ..
- Schauer S, Schlüter P, Baskar R, Gheyselinck J, Bolaños A, Curtis M, et al. Intronic regulatory elements determine the divergent expression patterns of AGAMOUS-LIKE6 subfamily members in Arabidopsis. Plant J. 2009;59:987-1000 pubmed publisher..Together, these results suggest that AGL6 and AGL13 show signs of subfunctionalization, with divergent expression patterns, regulatory sequences and possibly functions. ..
- Rodriguez V, Chételat A, Majcherczyk P, Farmer E. Chloroplastic phosphoadenosine phosphosulfate metabolism regulates basal levels of the prohormone jasmonic acid in Arabidopsis leaves. Plant Physiol. 2010;152:1335-45 pubmed publisher..These results show that a nucleotide component of the sulfur futile cycle regulates early steps of JA production and basal JA levels. ..
- Molinier J, Ramos C, Fritsch O, Hohn B. CENTRIN2 modulates homologous recombination and nucleotide excision repair in Arabidopsis. Plant Cell. 2004;16:1633-43 pubmed..These findings thus point to a novel interconnection between an early step of NER and homologous recombination, which may play a critical role in plant DNA repair. ..
- Pruzinska A, Tanner G, Aubry S, Anders I, Moser S, Muller T, et al. Chlorophyll breakdown in senescent Arabidopsis leaves. Characterization of chlorophyll catabolites and of chlorophyll catabolic enzymes involved in the degreening reaction. Plant Physiol. 2005;139:52-63 pubmed..In the dark, pao1 exhibited a stay-green phenotype. The key role of PAO in chl breakdown is discussed. ..
- Glauser G, Dubugnon L, Mousavi S, Rudaz S, Wolfender J, Farmer E. Velocity estimates for signal propagation leading to systemic jasmonic acid accumulation in wounded Arabidopsis. J Biol Chem. 2009;284:34506-13 pubmed publisher..The major roles of LOX2 are to generate arabidopsides and the large levels of JA that accumulate proximal to the wound. LOX2 is not essential for some of the most rapid events elicited by wounding. ..
- Cosio C, Dunand C. Transcriptome analysis of various flower and silique development stages indicates a set of class III peroxidase genes potentially involved in pod shattering in Arabidopsis thaliana. BMC Genomics. 2010;11:528 pubmed publisher..The approach used in this study highlights key individual genes that merit further investigation. ..
- Lorrain S, Allen T, Duek P, Whitelam G, Fankhauser C. Phytochrome-mediated inhibition of shade avoidance involves degradation of growth-promoting bHLH transcription factors. Plant J. 2008;53:312-23 pubmed..Consistent with this idea, the constitutive shade-avoidance phenotype of phyB mutants partially reverts in the absence of PIF4 and PIF5. ..
- Agne B, Andres C, Montandon C, Christ B, Ertan A, Jung F, et al. The acidic A-domain of Arabidopsis TOC159 occurs as a hyperphosphorylated protein. Plant Physiol. 2010;153:1016-30 pubmed publisher..However, the physiological relevance of this process is unclear. The data show that the A-domain of Toc159 as well as those of its homologs Toc132 and Toc120 are targets of a casein kinase 2-like activity. ..
- Heijde M, Ulm R. Reversion of the Arabidopsis UV-B photoreceptor UVR8 to the homodimeric ground state. Proc Natl Acad Sci U S A. 2013;110:1113-8 pubmed publisher..Our results identify a key role of RUP1- and RUP2-mediated UVR8 redimerization in photoreceptor inactivation, a crucial process that regenerates reactivatable UVR8 homodimers. ..
- Johnston A, Matveeva E, Kirioukhova O, Grossniklaus U, Gruissem W. A dynamic reciprocal RBR-PRC2 regulatory circuit controls Arabidopsis gametophyte development. Curr Biol. 2008;18:1680-6 pubmed publisher..Surprisingly, PRC2-specific H3K27-trimethylation activity represses paternal RBR allele, suggesting a functional role for a dynamic and reciprocal RBR-PRC2 regulatory circuit in cellular differentiation and reproductive development. ..
- Hunt E, Gattolin S, Newbury H, Bale J, Tseng H, Barrett D, et al. A mutation in amino acid permease AAP6 reduces the amino acid content of the Arabidopsis sieve elements but leaves aphid herbivores unaffected. J Exp Bot. 2010;61:55-64 pubmed publisher..The data are discussed in relation to the regulation of phloem composition and the role of phloem amino acids in regulating aphid performance. ..
- Dietrich D, Hammes U, Thor K, Suter Grotemeyer M, Fluckiger R, Slusarenko A, et al. AtPTR1, a plasma membrane peptide transporter expressed during seed germination and in vascular tissue of Arabidopsis. Plant J. 2004;40:488-99 pubmed
- Tambasco Studart M, Titiz O, Raschle T, Forster G, Amrhein N, Fitzpatrick T. Vitamin B6 biosynthesis in higher plants. Proc Natl Acad Sci U S A. 2005;102:13687-92 pubmed..Furthermore, and contrary to what was inferred previously, we show that the pathway appears to be cytosolic and is not localized to the plastid. Last, we report that the single PDX2 homolog is essential for plant viability. ..
- Zipfel C, Kunze G, Chinchilla D, Caniard A, Jones J, Boller T, et al. Perception of the bacterial PAMP EF-Tu by the receptor EFR restricts Agrobacterium-mediated transformation. Cell. 2006;125:749-60 pubmed..These results demonstrate that EFR is the EF-Tu receptor and that plant defense responses induced by PAMPs such as EF-Tu reduce transformation by Agrobacterium. ..
- González Besteiro M, Ulm R. Phosphorylation and stabilization of Arabidopsis MAP kinase phosphatase 1 in response to UV-B stress. J Biol Chem. 2013;288:480-6 pubmed publisher..Stress-responsive phosphorylation and stabilization of MKP1 demonstrate the post-translational regulation of a plant MKP in vivo, adding an additional regulatory layer to MAP kinase signaling in plants. ..
- Mehdi S, Derkacheva M, RamstrÃ¶m M, Kralemann L, Bergquist J, Hennig L. The WD40 Domain Protein MSI1 Functions in a Histone Deacetylase Complex to Fine-Tune Abscisic Acid Signaling. Plant Cell. 2016;28:42-54 pubmed publisher..Together, our results reveal the presence of an MSI1-HDA19 complex that fine-tunes ABA signaling in Arabidopsis. ..
- Schneitz K, Baker S, Gasser C, Redweik A. Pattern formation and growth during floral organogenesis: HUELLENLOS and AINTEGUMENTA are required for the formation of the proximal region of the ovule primordium in Arabidopsis thaliana. Development. 1998;125:2555-63 pubmed..Furthermore, we show that HUELLENLOS also regulates the initiation and/or maintenance of integument and embryo sac ontogenesis and interestingly prevents inappropriate cell death in the young ovule. ..
- Wüthrich K, Bovet L, Hunziker P, Donnison I, Hortensteiner S. Molecular cloning, functional expression and characterisation of RCC reductase involved in chlorophyll catabolism. Plant J. 2000;21:189-98 pubmed..Upon transport, it was processed to a mature form of 31 kDa. The significance of cloning of RCCR is discussed in respect to the evolution of chlorophyll catabolism and to the cloning of PaO. ..
- Baumberger N, Steiner M, Ryser U, Keller B, Ringli C. Synergistic interaction of the two paralogous Arabidopsis genes LRX1 and LRX2 in cell wall formation during root hair development. Plant J. 2003;35:71-81 pubmed..Our results indicate that LRX1 and LRX2 have overlapping functions in root hair formation, and that they likely regulate cell morphogenesis by promoting proper development of the cell wall. ..
- Pruzinsk A, Anders I, Aubry S, Schenk N, Tapernoux L thi E, M ller T, et al. In vivo participation of red chlorophyll catabolite reductase in chlorophyll breakdown. Plant Cell. 2007;19:369-87 pubmed publisher..We conclude that RCCR (together with PAO) is required for the detoxification of chlorophyll catabolites and discuss the biochemical role(s) for this enzyme...
- Schenk N, Schelbert S, Kanwischer M, Goldschmidt E, Dormann P, Hortensteiner S. The chlorophyllases AtCLH1 and AtCLH2 are not essential for senescence-related chlorophyll breakdown in Arabidopsis thaliana. FEBS Lett. 2007;581:5517-25 pubmed..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. ..
- Petty T, Nishimura T, Emamzadah S, Gabus C, Paszkowski J, Halazonetis T, et al. Expression, crystallization and preliminary X-ray diffraction analysis of the CMM2 region of the Arabidopsis thaliana Morpheus' molecule 1 protein. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2010;66:916-8 pubmed publisher..2 A resolution. They belonged to the trigonal space group P3(1)21 (or P3(2)21), with unit-cell parameters a=85.64, c=292.74 A. Structure determination is ongoing. ..
- Ulm R, Revenkova E, Di Sansebastiano G, Bechtold N, Paszkowski J. Mitogen-activated protein kinase phosphatase is required for genotoxic stress relief in Arabidopsis. Genes Dev. 2001;15:699-709 pubmed
- Kohler C, Hennig L, Bouveret R, Gheyselinck J, Grossniklaus U, Gruissem W. Arabidopsis MSI1 is a component of the MEA/FIE Polycomb group complex and required for seed development. EMBO J. 2003;22:4804-14 pubmed..Our results establish that MSI1 has an essential function in the correct initiation and progression of seed development. ..
- Kim C, Apel K. Substrate-dependent and organ-specific chloroplast protein import in planta. Plant Cell. 2004;16:88-98 pubmed
- Wagner D, Przybyla D, Op den Camp R, Kim C, Landgraf F, Lee K, et al. The genetic basis of singlet oxygen-induced stress responses of Arabidopsis thaliana. Science. 2004;306:1183-5 pubmed..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. ..
- Brukhin V, Gheyselinck J, Gagliardini V, Genschik P, Grossniklaus U. The RPN1 subunit of the 26S proteasome in Arabidopsis is essential for embryogenesis. Plant Cell. 2005;17:2723-37 pubmed..Overall, our data indicate that RPN1 activity is essential during embryogenesis, where it might participate in the destruction of a specific set of protein substrates. ..
- Geisler M, Blakeslee J, Bouchard R, Lee O, Vincenzetti V, Bandyopadhyay A, et al. Cellular efflux of auxin catalyzed by the Arabidopsis MDR/PGP transporter AtPGP1. Plant J. 2005;44:179-94 pubmed
- Baroux C, Gagliardini V, Page D, Grossniklaus U. Dynamic regulatory interactions of Polycomb group genes: MEDEA autoregulation is required for imprinted gene expression in Arabidopsis. Genes Dev. 2006;20:1081-6 pubmed..A complex network of cross-regulatory interactions among the other known members of the MEA-FIE PcG complex implies distinct functions that are dynamically regulated during reproduction. ..
- Schonrock N, Bouveret R, Leroy O, Borghi L, Kohler C, Gruissem W, et al. Polycomb-group proteins repress the floral activator AGL19 in the FLC-independent vernalization pathway. Genes Dev. 2006;20:1667-78 pubmed..In this pathway, prolonged cold relieves AGL19 from PcG repression by a mechanism that requires VIN3 but not VRN2. Elevated AGL19 levels activate LFY and AP1 and eventually cause flowering. ..
- Hunt E, Pritchard J, Bennett M, Zhu X, Barrett D, Allen T, et al. The Arabidopsis thaliana/Myzus persicae model system demonstrates that a single gene can influence the interaction between a plant and a sap-feeding insect. Mol Ecol. 2006;15:4203-13 pubmed..The results show that, under experimental conditions, this model system can be used to identify plant genes that control the behaviour and fecundity of an insect pest. ..
- Yan Y, Stolz S, Chételat A, Reymond P, Pagni M, Dubugnon L, et al. A downstream mediator in the growth repression limb of the jasmonate pathway. Plant Cell. 2007;19:2470-83 pubmed..Both forms of JAS1 were found to localize to the nucleus in transient expression assays. Physiological tests of growth responses after wounding were consistent with the fact that JAS1 is a repressor of JA-regulated growth retardation. ..
- Frelet Barrand A, Kolukisaoglu H, Plaza S, Rüffer M, Azevedo L, Hortensteiner S, et al. Comparative mutant analysis of Arabidopsis ABCC-type ABC transporters: AtMRP2 contributes to detoxification, vacuolar organic anion transport and chlorophyll degradation. Plant Cell Physiol. 2008;49:557-69 pubmed publisher..Vacuolar uptake studies demonstrated that transport of typical MRP substrates was reduced in atmrp2. We conclude that within clade I, only AtMRP2 contributes significantly to overall organic anion pump activity in vivo...
- Rouached H, Stefanovic A, Secco D, Bulak Arpat A, Gout E, Bligny R, et al. Uncoupling phosphate deficiency from its major effects on growth and transcriptome via PHO1 expression in Arabidopsis. Plant J. 2011;65:557-70 pubmed publisher..These data also show that reduced shoot growth is not a direct consequence of Pi deficiency, but is more likely to be a result of extensive gene expression reprogramming triggered by Pi deficiency. ..
- Hehenberger E, Kradolfer D, Kohler C. Endosperm cellularization defines an important developmental transition for embryo development. Development. 2012;139:2031-9 pubmed publisher..Finally, we demonstrate that AGL62 is a direct target gene of FIS Polycomb group repressive complex 2 (PRC2), establishing the molecular basis for FIS PRC2-mediated endosperm cellularization. ..
- Zimmerli C, Ribot C, Vavasseur A, Bauer H, Hedrich R, Poirier Y. PHO1 expression in guard cells mediates the stomatal response to abscisic acid in Arabidopsis. Plant J. 2012;72:199-211 pubmed publisher..Together, these data reveal an important role for phosphate and the action of PHO1 in the stomatal response to ABA. ..
- Schweizer F, Fernández Calvo P, Zander M, Diez Diaz M, Fonseca S, Glauser G, et al. Arabidopsis basic helix-loop-helix transcription factors MYC2, MYC3, and MYC4 regulate glucosinolate biosynthesis, insect performance, and feeding behavior. Plant Cell. 2013;25:3117-32 pubmed publisher..This specific MYC-MYB interaction plays a crucial role in the regulation of defense secondary metabolite production and underlines the importance of GS in shaping plant interactions with adapted and nonadapted herbivores. ..
- Zanella M, Borghi G, Pirone C, Thalmann M, Pazmino D, Costa A, et al. Î²-amylase 1 (BAM1) degrades transitory starch to sustain proline biosynthesis during drought stress. J Exp Bot. 2016;67:1819-26 pubmed publisher..We propose the transitory-starch/proline interplay as an interesting trait to be tackled by breeding technologies aimingto improve drought tolerance in relevant crops. ..
- Capelli N, Diogon T, Greppin H, Simon P. Isolation and characterization of a cDNA clone encoding an osmotin-like protein from Arabidopsis thaliana. Gene. 1997;191:51-6 pubmed..Genomic hybridization suggests that the cDNA obtained here corresponds to a single copy gene, and RNA blot analysis showed that the level of expression is highest in old leaves. ..
- Baumberger N, Ringli C, Keller B. The chimeric leucine-rich repeat/extensin cell wall protein LRX1 is required for root hair morphogenesis in Arabidopsis thaliana. Genes Dev. 2001;15:1128-39 pubmed..These results suggest that LRX1 is an extracellular component of a mechanism regulating root hair morphogenesis and elongation by controlling either polarized growth or cell wall formation and assembly. ..
- Geisler M, Murphy A. The ABC of auxin transport: the role of p-glycoproteins in plant development. FEBS Lett. 2006;580:1094-102 pubmed..Current models on the physiological role of PGPs, their functional interaction and their involvement in cell-to cell (polar) auxin transport are discussed...
- Goepfert S, Hiltunen J, Poirier Y. Identification and functional characterization of a monofunctional peroxisomal enoyl-CoA hydratase 2 that participates in the degradation of even cis-unsaturated fatty acids in Arabidopsis thaliana. J Biol Chem. 2006;281:35894-903 pubmed
- Mouchel C, Osmont K, Hardtke C. BRX mediates feedback between brassinosteroid levels and auxin signalling in root growth. Nature. 2006;443:458-61 pubmed..BRX expression is strongly induced by auxin and mildly repressed by brassinolide, which means that BRX acts at the nexus of a feedback loop that maintains threshold brassinosteroid levels to permit optimal auxin action. ..
- Bonaventure G, Gfeller A, Proebsting W, Hortensteiner S, Chételat A, Martinoia E, et al. A gain-of-function allele of TPC1 activates oxylipin biogenesis after leaf wounding in Arabidopsis. Plant J. 2007;49:889-98 pubmed..The results indicate that cation fluxes exert strong control over the positive feedback loop whereby JA stimulates its own synthesis. ..
- Pien S, Fleury D, Mylne J, Crevillen P, Inze D, Avramova Z, et al. ARABIDOPSIS TRITHORAX1 dynamically regulates FLOWERING LOCUS C activation via histone 3 lysine 4 trimethylation. Plant Cell. 2008;20:580-8 pubmed publisher..This dynamic process stands in contrast with the stable maintenance of homeotic gene expression mediated by trithorax group proteins in animals but resembles the dynamics of plant Polycomb group function. ..
- Rahim G, Bischof S, Kessler F, Agne B. In vivo interaction between atToc33 and atToc159 GTP-binding domains demonstrated in a plant split-ubiquitin system. J Exp Bot. 2009;60:257-67 pubmed publisher..Using the same method, the self-interaction of the peroxisomal membrane protein atPex11e is demonstrated. The finding suggests a more general suitability of the split-ubiquitin system as a plant in vivo interaction assay. ..
- Nagy R, Grob H, Weder B, Green P, Klein M, Frelet Barrand A, et al. The Arabidopsis ATP-binding cassette protein AtMRP5/AtABCC5 is a high affinity inositol hexakisphosphate transporter involved in guard cell signaling and phytate storage. J Biol Chem. 2009;284:33614-22 pubmed publisher..Our findings highlight a novel function of plant ABC transporters that may be relevant to other kingdoms. They also extend the signaling repertoire of this ubiquitous inositol polyphosphate signaling molecule. ..
- Beuchat J, Li S, Ragni L, Shindo C, Kohn M, Hardtke C. A hyperactive quantitative trait locus allele of Arabidopsis BRX contributes to natural variation in root growth vigor. Proc Natl Acad Sci U S A. 2010;107:8475-80 pubmed publisher..Thus, the AtBRX(Lc-0) allele seems to contribute to natural variation in root growth vigor and provides a rare example of an experimentally confirmed, hyperactive allelic variant. ..
- González Besteiro M, Bartels S, Albert A, Ulm R. Arabidopsis MAP kinase phosphatase 1 and its target MAP kinases 3 and 6 antagonistically determine UV-B stress tolerance, independent of the UVR8 photoreceptor pathway. Plant J. 2011;68:727-37 pubmed publisher..The combined activity of these two mechanisms is crucial to UV-B tolerance in plants. ..
- Egert A, Peters S, Guyot C, Stieger B, Keller F. An Arabidopsis T-DNA insertion mutant for galactokinase (AtGALK, At3g06580) hyperaccumulates free galactose and is insensitive to exogenous galactose. Plant Cell Physiol. 2012;53:921-9 pubmed publisher..Collectively, these findings suggest a novel Gal detoxification pathway that targets free Gal to the vacuole and is active in the atgalk mutant background. ..
- Mirouze M, Lieberman Lazarovich M, Aversano R, Bucher E, Nicolet J, Reinders J, et al. Loss of DNA methylation affects the recombination landscape in Arabidopsis. Proc Natl Acad Sci U S A. 2012;109:5880-5 pubmed publisher..Because DNA methylation exhibits significant variation even within a single species, our results imply that it may influence the evolution of plant genomes through the control of meiotic recombination...
- Debrieux D, Trevisan M, Fankhauser C. Conditional involvement of constitutive photomorphogenic1 in the degradation of phytochrome A. Plant Physiol. 2013;161:2136-45 pubmed publisher..COP1 acts with SUppressor of phytochrome A (SPA) proteins. Unexpectedly, the light-induced decline of phyA levels is reduced in spa mutants irrespective of the growth medium, suggesting a COP1-independent role for SPA proteins. ..
- Zhang J, Baetz U, Krügel U, Martinoia E, De Angeli A. Identification of a probable pore-forming domain in the multimeric vacuolar anion channel AtALMT9. Plant Physiol. 2013;163:830-43 pubmed publisher..We suggest that AtALMT9 is a tetramer and that the TM?5 domains of the subunits contribute to form the pore of this anion channel. ..
- Kradolfer D, Wolff P, Jiang H, Siretskiy A, Kohler C. An imprinted gene underlies postzygotic reproductive isolation in Arabidopsis thaliana. Dev Cell. 2013;26:525-35 pubmed publisher..Our study thus provides evidence strongly supporting this hypothesis and generates the molecular basis for our understanding of postzygotic hybridization barriers in plants. ..
- Geisler M, Kolukisaoglu H, Bouchard R, Billion K, Berger J, Saal B, et al. TWISTED DWARF1, a unique plasma membrane-anchored immunophilin-like protein, interacts with Arabidopsis multidrug resistance-like transporters AtPGP1 and AtPGP19. Mol Biol Cell. 2003;14:4238-49 pubmed
- Bouveret R, Schonrock N, Gruissem W, Hennig L. Regulation of flowering time by Arabidopsis MSI1. Development. 2006;133:1693-702 pubmed..Together, the control of flowering time depends on epigenetic mechanisms for the correct expression of not only the floral repressor FLC, but also the floral activator SOC1. ..
- Escobar Restrepo J, Huck N, Kessler S, Gagliardini V, Gheyselinck J, Yang W, et al. The FERONIA receptor-like kinase mediates male-female interactions during pollen tube reception. Science. 2007;317:656-60 pubmed..Our findings show that the female control of pollen tube reception is based on a FER-dependent signaling pathway, which may play a role in reproductive isolation barriers. ..
- Shindo C, Bernasconi G, Hardtke C. Intraspecific competition reveals conditional fitness effects of single gene polymorphism at the Arabidopsis root growth regulator BRX. New Phytol. 2008;180:71-80 pubmed publisher..In summary, these data reveal conditional fitness effects of a single gene polymorphism in response to intraspecific competition in Arabidopsis. ..
- Stefanovic A, Arpat A, Bligny R, Gout E, Vidoudez C, Bensimon M, et al. Over-expression of PHO1 in Arabidopsis leaves reveals its role in mediating phosphate efflux. Plant J. 2011;66:689-99 pubmed publisher..Together, these results show that PHO1 over-expression in leaves leads to a dramatic efflux of Pi out of cells and into the xylem vessel, revealing a crucial role for PHO1 in Pi efflux. ..
- Ragni L, Nieminen K, Pacheco Villalobos D, Sibout R, Schwechheimer C, Hardtke C. Mobile gibberellin directly stimulates Arabidopsis hypocotyl xylem expansion. Plant Cell. 2011;23:1322-36 pubmed publisher..Impaired GA signaling did not affect xylem expansion systemically, suggesting that it acts downstream of the mobile cue. By contrast, the GA effect was graft transmissible, suggesting that GA itself is the mobile shoot-derived signal...
- Simková K, Moreau F, Pawlak P, Vriet C, Baruah A, Alexandre C, et al. Integration of stress-related and reactive oxygen species-mediated signals by Topoisomerase VI in Arabidopsis thaliana. Proc Natl Acad Sci U S A. 2012;109:16360-5 pubmed publisher..These results suggest that Topo VI acts as an integrator of multiple signals generated by reactive oxygen species formed in plants under adverse environmental conditions. ..
- Crefcoeur R, Yin R, Ulm R, Halazonetis T. Ultraviolet-B-mediated induction of protein-protein interactions in mammalian cells. Nat Commun. 2013;4:1779 pubmed publisher..As UVR8 photoperception is based on intrinsic tryptophan residues, these interactions do not depend on the addition of an exogenous chromophore. ..
- Christ B, Süssenbacher I, Moser S, Bichsel N, Egert A, Muller T, et al. Cytochrome P450 CYP89A9 is involved in the formation of major chlorophyll catabolites during leaf senescence in Arabidopsis. Plant Cell. 2013;25:1868-80 pubmed publisher..We conclude that CYP89A9 is involved in the formation of dioxobilin-type catabolites of chlorophyll in Arabidopsis. ..
- Sakuraba Y, Park S, Kim Y, Wang S, Yoo S, H rtensteiner S, et al. Arabidopsis STAY-GREEN2 is a negative regulator of chlorophyll degradation during leaf senescence. Mol Plant. 2014;7:1288-1302 pubmed publisher..Our data indicate an antagonistic evolution of the functions of SGR1 and SGR2 in Arabidopsis to balance Chl catabolism in chloroplasts with the dismantling and remobilizing of other cellular components in senescing leaf cells...
- Sakuraba Y, Kim D, Kim Y, Hortensteiner S, Paek N. Arabidopsis STAYGREEN-LIKE (SGRL) promotes abiotic stress-induced leaf yellowing during vegetative growth. FEBS Lett. 2014;588:3830-7 pubmed publisher..Furthermore, SGRL forms homo- and heterodimers with SGR1 and SGR2 in vivo, and interacts with LHCII and chlorophyll catabolic enzymes. The role of SGRL under abiotic stress is discussed. ..