期刊
BIOMOLECULES
卷 10, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/biom10020341
关键词
alternative oxidase; cytochrome c; glutathione; hexokinase; nitric oxide; programmed cell death; permeability transition pore; superoxide dismutase; voltage-dependent anion channel
资金
- National Research, Development and Innovation Office of Hungary-NKFIH [OTKA PD112855, NKFIH FK 124871]
- New National Excellence Program of the Ministry of Human Capacities [UNKP-19-4-SZTE-86]
- University of Szeged Open Access Fund [4498]
- Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences
Different abiotic and biotic stresses lead to the production and accumulation of reactive oxygen species (ROS) in various cell organelles such as in mitochondria, resulting in oxidative stress, inducing defense responses or programmed cell death (PCD) in plants. In response to oxidative stress, cells activate various cytoprotective responses, enhancing the antioxidant system, increasing the activity of alternative oxidase and degrading the oxidized proteins. Oxidative stress responses are orchestrated by several phytohormones such as salicylic acid (SA). The biomolecule SA is a key regulator in mitochondria-mediated defense signaling and PCD, but the mode of its action is not known in full detail. In this review, the current knowledge on the multifaceted role of SA in mitochondrial ROS metabolism is summarized to gain a better understanding of SA-regulated processes at the subcellular level in plant defense responses.
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