ABA Balances Plant Growth and Metabolism
Research, The Plant Cell, The Plant Cell: In a NutshellYoshida et al. investigate how the phytohormone ABA balances normal growth and metabolism. https://doi.org/10.1105/tpc.18.00766.
By Takuya Yoshida and Alisdair R. Fernie, Max-Planck-Institut für Molekulare Pflanzenphysiologie.
Background: Abscisic acid (ABA) is a plant hormone that…
How does ABA activate a calcium/calmodulin-dependent kinase in rice?
Research, The Plant Cell, The Plant Cell: In a NutshellNi et al. reveal a pathway for ABA-activated OsDMI3 in rice. Plant Cell https://doi.org/10.1105/tpc.18.00506
By Lan Ni and Mingyi Jiang
Background: Abscisic acid (ABA) is a phytohormone that plays important roles both in plant growth and development and in plant responses to environmental stresses.…
Uncovering the Steps Before: Sulfate Induces ABA Biosynthesis and Stomatal Closure
The Plant Cell, The Plant Cell: In BriefPlant stomatal aperture regulation via guard cells is an example of how plants dynamically process environmental signals to induce a physiological response. The drought stress hormone abscisic acid (ABA) is a well-characterized signal that induces stomatal closure, preventing water loss. ABA acts via…
A Partnership for ABA Responses
The Plant Cell: In BriefThe phytohormone abscisic acid (ABA) regulates a variety of processes in plants including seed dormancy, seedling growth, and response to environmental stresses. A fascinating study by Ni et al. (2018) shows that ABA responses in rice are regulated by an interaction between the DMI3 kinase, which activates…
The xerobranching response represses lateral root formation when roots are not in contact with water (Curr. Biol. - $)
Plant Science Research WeeklyRoots navigate through the soil, foraging for water and nutrients. Orman-Ligeza et al. observed that lateral root development is repressed when the roots are growing through the soil air spaces. Exposure to water deficit induced transcriptome reprogramming in barley roots of genes involved in many hormone…
A gene‐stacking approach to overcome the trade‐off between drought stress tolerance and growth in Arabidopsis (Plant J)
Plant Science Research WeeklyIn the face of increasing incidence of drought events, developing drought-tolerant plants becomes urgent matter. However, the increase in drought tolerance often coincides with the significant reduction of plant size, as in the case of overexpressing DEHYDRATION-RESPONSIVE ELEMENT-BINDING PROTEIN 1A…
FERONIA receptor kinase contributes to plant immunity by suppressing jasmonic acid signaling in Arabidopsis thaliana (Curr. Biol. - $)
Plant Science Research WeeklyReceptor-like kinase FERONIA plays important role in the regulation of plant growth as well as interactions with the environment. In order to understand how FER affects plant growth Guo et al. examined global transcriptome changes in fer mutant. The authors observed that genes up-regulated by stress…