AtNOA1 modulates nitric oxide accumulation and stomatal closure induced by salicylic acid in Arabidopsis

Phytohormone salicylic acid (SA) has been documented to induce nitric oxide (NO) generation and stomatal closure in plants. However, the cellular components mediating these processes are limited. Here, we report that NO synthesis in guard cells and stomatal closure are markedly induced by SA in Arab...

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Veröffentlicht in:	Plant signaling & behavior 2010-08, Vol.5 (8), p.1022-1024
Hauptverfasser:	Sun, Li Rong, Hao, Fu Shun, Lu, Bao Shi, Ma, Li Ya
Format:	Artikel
Sprache:	eng
Schlagworte:	Addendum Arabidopsis Arabidopsis - drug effects Arabidopsis - genetics Arabidopsis - physiology Arabidopsis Proteins - metabolism Binding Biology Bioscience Calcium Cancer Cell Cycle DNA, Bacterial - genetics guard cells Landes mutants Mutation nitric oxide Nitric Oxide - metabolism Nitric Oxide Synthase - metabolism Organogenesis plant hormones Plant Stomata - metabolism Proteins salicylic acid Salicylic Acid - pharmacology stomatal movement transfer DNA
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Zusammenfassung:	Phytohormone salicylic acid (SA) has been documented to induce nitric oxide (NO) generation and stomatal closure in plants. However, the cellular components mediating these processes are limited. Here, we report that NO synthesis in guard cells and stomatal closure are markedly induced by SA in Arabidopsis wild type plants, whereas these effects caused by SA are suppressed significantly in noa1 T-DNA mutant plants. These results suggest that AtNOA1 regulates SA-triggered NO accumulation and stomatal closure in Arabidopsis.
ISSN:	1559-2324 1559-2316 1559-2324
DOI:	10.4161/psb.5.8.12293