Featured
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Article |
The calcium-permeable channel OSCA1.3 regulates plant stomatal immunity
A study in Arabidopsis thaliana shows that the immune receptor-associated cytosolic kinase BIK1 phosphorylates OSCA1.3 and identifies OSCA1.3 as the pathogen-responsive Ca2+-permeable channel that regulates stomatal closure.
- Kathrin Thor
- , Shushu Jiang
- & Cyril Zipfel
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Letter |
POLAR-guided signalling complex assembly and localization drive asymmetric cell division
POLAR, identified in a survey of the protein interactome of BRASSINOSTEROID INSENSITIVE 2 in Arabidopsis thaliana, has a key role in coordinating cell polarity and enabling asymmetric cell division.
- Anaxi Houbaert
- , Cheng Zhang
- & Eugenia Russinova
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Letter |
A small peptide modulates stomatal control via abscisic acid in long-distance signalling
In an Arabidopsis model, the CLE25 peptide acts as a root-to-shoot signalling molecule that modulates abscisic acid expression to close stomata and enhance resistance to dehydration.
- Fuminori Takahashi
- , Takehiro Suzuki
- & Kazuo Shinozaki
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Article |
Competitive binding of antagonistic peptides fine-tunes stomatal patterning
An investigation of the molecular mechanism of stomatal development and patterning finds an unexpected signalling mechanism: two signalling peptides (STOMAGEN, a positive regulator of stomatal development; and EPF2, a negative regulator of this process) use the same receptor kinase, ERECTA, to fine-tune stomatal development.
- Jin Suk Lee
- , Marketa Hnilova
- & Keiko U. Torii
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Letter |
Increase in forest water-use efficiency as atmospheric carbon dioxide concentrations rise
Present-day forests use water more efficiently, probably owing to the effect of increased atmospheric carbon dioxide on leaf stomata, which partially close to maintain a near-constant level of carbon dioxide inside the leaves despite increasing atmospheric levels.
- Trevor F. Keenan
- , David Y. Hollinger
- & Andrew D. Richardson
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Letter |
Brassinosteroid regulates stomatal development by GSK3-mediated inhibition of a MAPK pathway
Brassinosteroid inhibits stomatal development by alleviating GSK3-mediated inhibition of a MAPK module, revealing a link between a plant MAPKKK and its upstream regulators, and between brassinosteroid and a specific developmental output.
- Tae-Wuk Kim
- , Marta Michniewicz
- & Zhi-Yong Wang
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Article |
Homologue structure of the SLAC1 anion channel for closing stomata in leaves
SLAC1 is a plant ion channel that controls turgor pressure in the guard cells of plant stomata, thereby regulating the exchange of water vapour and photosynthetic gases in response to environmental signals. Here, the X-ray crystal structure of a bacterial homologue of SLAC1 has been solved, and structure-inspired mutagenesis has been used to analyse the conductance properties of the channel. The findings indicate that selectivity among different anions is largely a function of the energetic cost of ion dehydration.
- Yu-hang Chen
- , Lei Hu
- & Wayne A. Hendrickson
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News & Views |
The hidden cost of transpiration
Theoretical analyses reveal how plant investment in the architecture of leaf veins can be shuffled for different conditions, minimizing the construction costs associated with supplying water to leaves.
- David J. Beerling
- & Peter J. Franks