Skip to main content

Research Repository

Advanced Search

Nitric oxide and ABA in the control of plant function

Hancock, John T.; Neill, Steven; Wilson, Ian D.



Abscisic acid (ABA) and nitric oxide (NO) are both extremely important signalling molecules employed by plants to control many aspects of physiology. ABA has been extensively studied in the mechanisms which control stomatal movement as well as in seed dormancy and germination and plant development. The addition of either ABA or NO to plant cells is known to instigate the actions of many signal transduction components. Both may have an influence on the phosphorylation of proteins in cells mediated by effects on protein kinases and phosphatases, as well as recruiting a wide range of other signal transduction molecules to mediate the final effects. Both ABA and NO may also lead to the regulation of gene expression. However, it is becoming more apparent that NO may be acting downstream of ABA, with such action being mediated by reactive oxygen species such as hydrogen peroxide in some cases. However not all ABA responses require the action of NO. Here, examples of where ABA and NO have been put together into the same signal transduction pathways are discussed. © 2011 Elsevier Ireland Ltd.


Wilson, I. D., Neill, S. J., Hancock, J. T., Hancock, J. T., Neill, S., & Wilson, I. D. (2011). Nitric oxide and ABA in the control of plant function. Plant Science, 181(5), 555-559.

Journal Article Type Article
Publication Date Jan 1, 2011
Journal Plant Science
Print ISSN 0168-9452
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 181
Issue 5
Pages 555-559
Keywords nitric oxide, ABA, plant science
Public URL
Publisher URL