root of ABA action in environmental stress response

The growth and development of plants are influenced by the integration of diverse endogenous and environmental signals. Acting as a mediator of extrinsic signals, the stress hormone, abscisic acid (ABA), has been shown to regulate many aspects of plant development in response to unfavourable environ...

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Bibliographic Details
Published in:Plant cell reports 2013-07, Vol.32 (7), p.971-983
Main Authors: Hong, Jing Han, Seah, Seng Wee, Xu, Jian
Format: Article
Language:English
Subjects:
abscisic acid
Abscisic Acid - metabolism
Arabidopsis
Arabidopsis - metabolism
Arabidopsis Proteins - metabolism
Biomedical and Life Sciences
Biotechnology
Cell Biology
Drought
Droughts
Environmental stress
Gene Expression Regulation, Plant - physiology
growth and development
High temperature
Life Sciences
Plant Biochemistry
plant development
Plant Growth Regulators - metabolism
Plant Roots - metabolism
Plant Sciences
Plant species
Review
rice
Root development
root systems
salinity
stress response
temperature
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Summary:The growth and development of plants are influenced by the integration of diverse endogenous and environmental signals. Acting as a mediator of extrinsic signals, the stress hormone, abscisic acid (ABA), has been shown to regulate many aspects of plant development in response to unfavourable environmental stresses, allowing the plant to cope and survive in adverse conditions, such as drought, low or high temperature, or high salinity. Here, we summarize recent evidence on the roles of ABA in environmental stress responses in the Arabidopsis root; and on how ABA crosstalks with other phytohormones to modulate root development and growth in Arabidopsis. We also review literature findings showing that, in response to environmental stresses, ABA affects the root system architecture in other plant species, such as rice.
ISSN:0721-7714
1432-203X
DOI:10.1007/s00299-013-1439-9