Salicylic acid to decrease plant stress
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- 作者：Abdul Basit Wani ; Hemlata Chadar ; Abdul Haleem Wani…
- 关键词：Exogenous salicylic acid ; Plant diseases ; Biotic stress ; Abiotic stress ; Heavy metal ; Micronutrient toxicity
- 刊名：Environmental Chemistry Letters
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：15
- 期：1
- 页码：101-123
- 全文大小：
- 刊物类别：Earth and Environmental Science
- 刊物主题：Environmental Chemistry; Ecotoxicology; Pollution, general; Analytical Chemistry; Geochemistry;
- 出版者：Springer International Publishing
- ISSN：1610-3661
- 卷排序：15
文摘
Pollution and climate change degrade plant health. Plant stress can be decreased by application of salicylic acid, an hormone involved in plant signaling. Salicylic acid indeed initiates pathogenesis-related gene expression and synthesis of defensive compounds involved in local resistance and systemic acquired resistance. Salicylic acid may thus be used against pathogen virulence, heavy metal stresses, salt stress, and toxicities of other elements. Applied salicylic acid improves photosynthesis, growth, and various other physiological and biochemical characteristics in stressed plants. Salicylic acid antagonizes the oxidative damaging effect of metal toxicity directly by acting as an antioxidant to scavenge the reactive oxygen species and by activating the antioxidant systems of plants and indirectly by reducing uptake of metals from their medium of growth. We review here the use of exogenous salicylic acid in alleviating bacterial, fungal, and viral diseases, heavy metal toxicity, toxicity of essential micronutrients, and salt stress.