Document Type
Article
Abstract
The activation of phospholipase D (PLD) produces phosphatidic acid (PA), whereas plant sphingosine kinase (SPHK) phosphorylates long-chain bases to generate long-chain base-1-phosphates such as phytosphingosine-1-phosphate (phyto-S1P). PA and phyto-S1P have been identified as lipid messengers. Recent studies have shown that PA interacts directly with SPHKs in Arabidopsis, and that the interaction promotes SPHK activity. However, SPHK and phyto-S1P act upstream of PLDα1 and PA in the stomatal response to abscisic acid (ABA). These findings indicate that SPHK/phyto-S1P and PLD/PA are co-dependent in the amplification of lipid messengers, and that crosstalk between the sphingolipid- and phospholipid-mediated signaling pathways may play important roles in plant stress signaling.
Publication Date
March 2012
Publication Title
Frontiers in Plant Science
Volume
3
Issue
51
First Page
1
Last Page
7
DOI
10.3389/fpls.2012.00051
Recommended Citation
Wang, Xuemin and Guo, Liang, "Crosstalk Between Phospholipase D and Sphingosine Kinase in Plant Stress Signaling" (2012). Biology Department Faculty Works. 31.
DOI: https://doi.org/10.3389/fpls.2012.00051
Available at:
https://irl.umsl.edu/biology-faculty/31