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…
Digital imaging combined with genome-wide association mapping links loci to plant-pathogen interaction traits (Plant Phys.)
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FERONIA receptor kinase contributes to plant immunity by suppressing jasmonic acid signaling in Arabidopsis thaliana (Curr. Biol. - $)
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Abscisic acid-independent stomatal CO2 signal transduction pathway and convergence of CO2 and ABA signaling downstream of OST1 kinase (PNAS - $)
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The Arabidopsis negative regulator of root hydraulics XND1 is involved in abiotic and biotic stress responses (Nature Comm.)
Plant Science Research WeeklyProper uptake and management of water is essential for plant growth and adaptation to stress. However, there are gaps in the understanding of the genetics of root hydraulics, including the regulatory components. Tang et al. used a genome-wide associate analysis approach to identify XYLEM NAC DOMAIN 1 (XND1),…
ABA-mediated regulation of stomatal density is OST1-independent (Plant Direct)
Plant Science Research WeeklyStomata are not only important for CO2 uptake, but are also important in limiting water loss when the water availability is running low. Stress hormone ABA activates protein kinase OPEN STOMATA 1 (OST1) leading to opening of ion channels, water efflux and stomatal closure. Increased levels of ABA decrease…
Members of the Arabidopsis FORKED1-LIKE gene family act to localize PIN1 in developing veins (J Exp Bot.)
Plant Science Research WeeklyVascular system is one of the adaptive features for terrestrial plants. Polar localization of PIN1 is essential for creating directional auxin flow, resulting in vein pattern formation. Mariyamma et al. propose that FORKED1 (FKD1) and its homologues control the PIN1 polar localization. The team identified…