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Article

Salicylic acid 3-hydroxylase regulates Arabidopsis leaf longevity by mediating salicylic acid catabolism.

Proceedings of the National Academy of Sciences of the United States of America - 3 Sept 2013

Zhang Kewei, Halitschke Rayko, Yin Changxi, Liu Chang-Jun, Gan Su-Sheng

Abstract excerpt

The plant hormone salicylic acid (SA) plays critical roles in plant defense, stress responses, and senescence. Although SA biosynthesis is well understood, the pathways by which SA is catabolized remain elusive. Here we report the identification and characterization of an SA 3-hydroxylase (S3H) involved in SA catabolism during leaf senescence. S3H is associated with senescence and is inducible by SA and is thus a...

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Identifiers

PMID: 23959884
DOI: 10.1073/pnas.1302702110
PMCID: PMC3767541

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