Drought-induced guard cell signal transduction involves sphingosine-1-phosphate

Carl K.-Y. Ng, Kathryn Carr, Martin R. McAinsh, Brian Powell and Alistair M. Hetherington ()
Additional contact information
Carl K.-Y. Ng: Institute of Environmental and Natural Sciences, Lancaster University
Kathryn Carr: Avecia Limited, Hexagon House
Martin R. McAinsh: Institute of Environmental and Natural Sciences, Lancaster University
Brian Powell: Avecia Limited, Hexagon House
Alistair M. Hetherington: Institute of Environmental and Natural Sciences, Lancaster University

Nature, 2001, vol. 410, issue 6828, 596-599

Abstract: Abstract Stomata form pores on leaf surfaces that regulate the uptake of CO2 for photosynthesis and the loss of water vapour during transpiration1. An increase in the cytosolic concentration of free calcium ions ([Ca2+]cyt) is a common intermediate in many of the pathways leading to either opening or closure of the stomatal pore2,3. This observation has prompted investigations into how specificity is controlled in calcium-based signalling systems in plants. One possible explanation is that each stimulus generates a unique increase in [Ca2+]cyt, or ‘calcium signature’, that dictates the outcome of the final response4. It has been suggested that the key to generating a calcium signature, and hence to understanding how specificity is controlled, is the ability to access differentially the cellular machinery controlling calcium influx and release from internal stores2,3,4,5 . Here we report that sphingosine-1-phosphate is a new calcium-mobilizing molecule in plants. We show that after drought treatment sphingosine-1-phosphate levels increase, and we present evidence that this molecule is involved in the signal-transduction pathway linking the perception of abscisic acid to reductions in guard cell turgor.

Date: 2001
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/35069092 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:410:y:2001:i:6828:d:10.1038_35069092

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/35069092

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().