A guard-cell-specific MYB transcription factor regulates stomatal movements and plant drought tolerance.
Eleonora Cominelli,Massimo Galbiati,Alain Vavasseur,Lucio Conti,T. Sala,Marnik Vuylsteke,Nathalie Leonhardt,Stephen L. Dellaporta,Chiara Tonelli +8 more
TL;DR: The characterization of AtMYB60, a R2R3-MYB gene of Arabidopsis, is reported as the first transcription factor involved in the regulation of stomatal movements and opens new possibilities to engineeringStomatal activity to help plants survive desiccation.
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About: This article is published in Current Biology. The article was published on 12 Jul 2005. and is currently open access. The article focuses on the topics: Guard cell & Transpiration.
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References
Guard cell signal transduction
Julian I. Schroeder,Gethyn J. Allen,Véronique Hugouvieux,June M. Kwak,David Waner +4 more
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TL;DR: Stomatal guard cells have become a highly developed model system for characterizing early signal transduction mechanisms in plants and for elucidating how individual signaling mechanisms can interact within a network in a single cell.
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phot1 and phot2 mediate blue light regulation of stomatal opening
Toshinori Kinoshita,Michio Doi,Noriyuki Suetsugu,Noriyuki Suetsugu,Takatoshi Kagawa,Takatoshi Kagawa,Masamitsu Wada,Masamitsu Wada,Ken-ichiro Shimazaki +8 more
TL;DR: It is demonstrated that in a double mutant of phot1 and phot2 stomata do not respond to blue light although single mutants are phenotypically normal, and blue light receptors mediating stomatal opening are acted redundantly.
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Guard cell abscisic acid signalling and engineering drought hardiness in plants
TL;DR: The molecular understanding of the guard cell signal transduction network opens possibilities for engineering stomatal responses to control CO2 intake and plant water loss.
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Arabidopsis Cys2/His2-Type Zinc-Finger Proteins Function as Transcription Repressors under Drought, Cold, and High-Salinity Stress Conditions
Hideki Sakamoto,Kyonoshin Maruyama,Yoh Sakuma,Tetsuo Meshi,Masaki Iwabuchi,Kazuo Shinozaki,Kazuko Yamaguchi-Shinozaki +6 more
TL;DR: Results suggest that AZF2 and STZ function as transcriptional repressors to increase stress tolerance following growth retardation and Transgenic Arabidopsis overexpressing STZ showed growth retardations and tolerance to drought stress.
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Microarray Expression Analyses of Arabidopsis Guard Cells and Isolation of a Recessive Abscisic Acid Hypersensitive Protein Phosphatase 2C Mutant
Nathalie Leonhardt,June M. Kwak,Nadia Robert,David Waner,Guillaume Leonhardt,Julian I. Schroeder +5 more
TL;DR: Exposure profiling reveals ABA modulation of many known guard cell ABA signaling components at the transcript level, and a highly ABA-induced protein phosphatase 2C transcript, AtP2C-HA, is identified in guard cells.