期刊
PLANT SIGNALING & BEHAVIOR
卷 7, 期 5, 页码 566-569出版社
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.19857
关键词
eATP; ATP signaling; eATP homeostasis; apyrase; PCD
资金
- Fundamental Research Funds for the Central Universities [JC2011-2, BLYJ200903]
- National Natural Science Foundation of China [31170570, 30872005]
- Foundation for the Supervisors of Excellent Doctoral Dissertations of Beijing [YB20081002201]
- Beijing Natural Science Foundation [6112017]
Extracellular ATP (eATP) is now recognized as an important signaling agent in plant growth and defense response to environmental stimuli. eATP has dual functions in plant cell signaling, which is largely dependent on its concentration in the extracellular matrix (ECM). A lethal level of eATP (extremely low or high) causes cell death, whereas a moderate level of eATP benefits plant growth and development. Ecto-apyrases (Nucleoside Triphosphate-Diphosphohydrolase) help control the eATP concentrations in the ECM, and thus contributing to the mediation of plant growth and defense response upon environmental stress. In this review, we summarize eATP signaling in plants and highlight the correlation between eATP homeostasis control and programmed cell death.
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