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Article

HPCA1 and CaM3 contribute to peroxisomal H2O2-driven activation of salicylic acid responses.

Plant physiology - 1 Sept 2026

Luo Long, Yang Tianzhao, Shi Ningning, Fu Maoyin, Mu Xiujie, Zheng Dongqiao, Qi Weicong, Yu Mei, Zhang Kuanchao, Han Yi

Abstract excerpt

Intracellular H2O2 generated in peroxisomes via photorespiration serves as a key signal that switches on a plethora of defense responses. Our previous findings revealed that the activation of salicylic acid (SA) responses by such H2O2 requires upregulation of S-nitrosoglutathione reductase (GSNOR). Therefore, the factors mediating GSNOR regulation and oxidative stress responses remain to be determined. Here, we...

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Topics

Salicylic Acid
Hydrogen Peroxide
Peroxisomes
Arabidopsis Proteins
Arabidopsis
Calmodulin

Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

Mutation

Signal Transduction

Oxidative Stress

Catalase

Source

Identifiers

PMID: 42612176
DOI: 10.1093/plphys/kiag617

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 24 Oct 2026.

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HPCA1 and CaM3 contribute to peroxisomal H2O2-driven activation of salicylic acid responses.PMID 42612176Read ↗

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