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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Citations
Engineering drought tolerance in plants by modification of transcription and signalling factors
TL;DR: A considerable improvement has been made in the discovery of new signalling cascades and TFs, but to match the requirements of agriculture today, the authors must be capable of turning this knowledge into drought-tolerant transgenic crops in the field.
16
Truncated Cotton Subtilase Promoter Directs Guard Cell-Specific Expression of Foreign Genes in Tobacco and Arabidopsis
Lei Han,Ya-Nan Han,Xing-Guo Xiao +2 more
TL;DR: Both guard cell specificity and expression strength of the promoters be coordinately controlled by 5′-untranslated region and a cluster of at least 3 (T/A)AAAG elements within a region of about 100 bp relative to transcription start site.
Involvement of two-component signalling systems in the regulation of stomatal aperture by light in Arabidopsis thaliana
TL;DR: The results provide new insights into the operation of TCS in plants, cross-talk in stomatal signalling and, in particular, the process of light-inducedStomatal opening.
16
Genetic Mechanisms of Drought Stress Tolerance, Implications of Transgenic Crops for Agriculture
Jyoti Bhardwaj,Sudesh Kumar Yadav +1 more
- 01 Jan 2012
TL;DR: The degree of drought stress severity on plants is seen by symptoms and effects on physiological metabolisms and yield, and a list of transgenic plants tolerating drought stress is presented.
16
The soybean gene, GmMYBJ2, encodes a R2R3-type transcription factor involved in drought stress tolerance in Arabidopsis thaliana
Lian-Tai Su,Ying Wang,De-Quan Liu,Xiao-Wei Li,Ying Zhai,Xin Sun,Xu-Yan Li,Yajing Liu,Jingwen Li,Qing-Yu Wang +9 more
TL;DR: The results indicated the overexpression of GmmyBJ2 make transgenic Arabidopsis more tolerant to drought stress than wild-type (WT) plants, and GmMYBJ 2 may be useful for improving drought stress tolerance in transgenic plant breeding.
15
References
Guard cell signal transduction
Julian I. Schroeder,Gethyn J. Allen,Véronique Hugouvieux,June M. Kwak,David Waner +4 more
- 28 Nov 2003
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.
851
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.