1. Role of nitric oxide and hydrogen sulfide in plant aluminum tolerance.
- Author
-
He H, Li Y, and He LF
- Subjects
- Aluminum toxicity, Hydrogen Sulfide pharmacology, Nitric Oxide biosynthesis, Nitric Oxide pharmacology, Plants metabolism, Aluminum pharmacology, Hydrogen Sulfide metabolism, Nitric Oxide metabolism, Plants drug effects
- Abstract
As gasotransmitter, nitric oxide (NO) and hydrogen sulfide (H
2 S) are involved in the regulation of plant tolerance to abiotic stresses. Aluminum (Al) toxicity triggers synthesis of NO and H2 S and seriously affects plant growth and productivity. Exogenous NO and H2 S alleviate Al toxicity in plants. However, the physiological and molecular mechanisms of NO and H2 S in alleviating Al toxicity are very scattered. In this review, the advances in the effects of Al on the content of endogenous NO and H2 S and the mechanisms of exogenous NO and H2 S in alleviating Al toxicity in plants are summarized and discussed. The signaling pathway for the roles of NO and H2 S in alleviating Al toxicity is also proposed.- Published
- 2019
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