Stomata close in response to increasing VPD but what is the mechanism responsible for this response?
Tag - Abscisic acid
William Salter
Expression of the sesame MYB transcription factor SiMYB305 boosts tolerance to drought and salt stress in Arabidopsis
Improving crop tolerance to environmental stresses is of paramount importance to global food security. To protect themselves from abiotic stress, plants translate environmental inputs into internal signals through...
The SAUR41 subfamily of genes is involved in cell expansion and salt tolerance
The SAUR41 genes are ABA inducible and active during seedling establishment.
Erin Zimmerman
Strigolactones interact with other plant hormones in many situations
Strigolactones are interesting phytohormones in their own right, but Luke Omoarelojie and colleagues say we should be looking at cross-talk with other hormones too.
Fi Gennu
Potential involvement of root auxins in drought tolerance by modulating nocturnal and daytime water use in wheat
The ability of wheat genotypes to save water by reducing their transpiration rate (TR) at times of the day with high vapour pressure deficit (VPD) has been linked to increasing yields in terminal drought environments...
Alex Assiry
Abscisic acid (ABA) and low temperatures increase cold-hardiness in grapevine dormant buds
It has been reported that low temperatures and the plant hormone abscisic acid (ABA) induce the expression of CBF/DREB1 transcription factors in vegetative tissues and seedlings of Vitis vinifera and Vitis riparia and...
Responses of Eucalyptus globulus to eleven levels of continuous water availability
Foliar concentrations of plant secondary metabolites (PSMs) are influenced by soil water availability. However, concentrations of individual compounds in previously published studies have been reported to be higher...
botanyone
Aquaporin function and exogenous application of abscisic acid (ABA) to barley roots
Using an immunochemical approach to reveal the link between changes in abscisic acid (ABA) levels, aquaporin function and changes in root cell hydraulic conductivity (LpCell), Sharipova et al. compared the abundance of...
Within-species responses to water deficit vary more with traits than provenance
Plants manage water stress through various mechanisms, including increasing concentrations of compounds such as abscisic acid (ABA) to signal stomatal closure and reduce water loss, changing plant secondary metabolite...
Danielle Marias
Abscisic acid and seed development in a lady’s slipper orchid
Abscisic acid concentration and distribution during seed development of Cypripedium formosanum serves as the key inhibitor of germination.
Arabidopsis Mob1 gene regulates organ development
Mob1 proteins are kinase regulators that are conserved among eukaryotes and which play a significant role in restraining tumor development. Pinosa et al. study the role of Mob1-like genes in development of Arabidopsis...
Cytokinins can trigger hypersensitive-like responses
Activating the gene ipt to produce high levels of cytokinins in tobacco is sufficient to trigger fast cell death without intervening chlorosis.
Plant hormones in arbuscular mycorrhizal symbioses (Research in Context)
Although >80% of species form arbuscular mycorrhizal symbioses, the roles of plant hormones in the associations are still being determined. Foo et al. critically review recent progress in our understanding of the...
Physiological mechanisms of germination responses
Germination timing, a major determinant of fitness, is extremely sensitive to environmental conditions but the physiological mechanisms regulating it are largely unknown. Barua et al. study Arabidopsis thaliana and find...
