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Free sphingobases induce RBOHD-dependent reactive oxygen species production in Arabidopsis leaves
- Source :
-
FEBS Letters . Oct2011, Vol. 585 Issue 19, p3006-3010. 5p. - Publication Year :
- 2011
-
Abstract
- Abstract: Sphingolipids are implied in several regulatory processes, including cell death. Levels of the free sphingobase t18:0 (phytosphingosine) increase in Arabidopsis in response to the bacterial pathogen Pseudomonas syringae. To gain information on sphingobase-induced signaling, we determined kinetics of leaf reactive oxygen species (ROS) levels and cell death in response to specific sphingobases. t18:0, d18:0 and d17:1, but not d20:0, induced ROS and cell death within 1.5–2h. Early sphingobase-induced ROS production was independent of cell death induction and required the NADPH oxidase Respiratory Burst Oxidase Homolog D (RBOHD). Specific sphingobases can therefore induce cell death and require RBOHD for early ROS induction in plants. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00145793
- Volume :
- 585
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- FEBS Letters
- Publication Type :
- Academic Journal
- Accession number :
- 65948239
- Full Text :
- https://doi.org/10.1016/j.febslet.2011.08.016