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Plant Signal Behav. 2013 Jun;8(6):e24260. doi: 10.4161/psb.24260. Epub 2013 Mar 21.

Jasmonic acid and salicylic acid activate a common defense system in rice.

Author information

  • 1Faculty of Agriculture and Gene Research Center; Kagawa University; Miki, Kagawa, Japan.

Abstract

Jasmonic acid (JA) and salicylic acid (SA) play important roles in plant defense systems. JA and SA signaling pathways interact antagonistically in dicotyledonous plants, but, the status of crosstalk between JA and SA signaling is unknown in monocots. Our rice microarray analysis showed that more than half of the genes upregulated by the SA analog BTH are also upregulated by JA, suggesting that a major portion of the SA-upregulated genes are regulated by JA-dependent signaling in rice. A common defense system that is activated by both JA and SA is thus proposed which plays an important role in pathogen defense responses in rice.

KEYWORDS:

common defense system; induced resistance; jasmonic acid; rice; salicylic acid

PMID:
23518581
[PubMed - indexed for MEDLINE]
PMCID:
PMC3906320
Free PMC Article

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