Alternative oxidase pathway is involved in the exogenous SNP-elevated tolerance of Medicago truncatula to salt stress

• Published in: Journal of plant physiology Vol. 193; pp. 79 - 87
• Main Authors: Jian, Wei, Zhang, Da-wei, Zhu, Feng, Wang, Shuo-xun, Pu, Xiao-jun, Deng, Xing-Guang, Luo, Shi-Shuai, Lin, Hong-hui
• Format: Journal Article
• Language: English
• Published: Germany Elsevier GmbH 01.04.2016
• Subjects: Alternative oxidase (AOX); Antioxidants - metabolism; Antioxidase enzymes; Cell Respiration; cyanide-resistant respiration; enzyme activity; Gene expression; Gene Expression Regulation, Plant - drug effects; genes; homeostasis; Medicago truncatula; Medicago truncatula (Medicago); Medicago truncatula - drug effects; Medicago truncatula - enzymology; Medicago truncatula - genetics; Medicago truncatula - physiology; Mitochondrial Proteins - genetics; Mitochondrial Proteins - metabolism; nitric oxide; Nitric oxide (NO); nitroprusside; Nitroprusside - pharmacology; Oxidoreductases - genetics; Oxidoreductases - metabolism; oxygen; photosynthesis; Photosynthesis - drug effects; Plant Leaves - drug effects; Plant Leaves - enzymology; Plant Leaves - genetics; Plant Leaves - physiology; Plant Proteins - genetics; Plant Proteins - metabolism; Reactive oxygen (ROS); Reactive Oxygen Species - metabolism; respiratory rate; Salt stress; Salt-Tolerance; Seedlings - drug effects; Seedlings - enzymology; Seedlings - genetics; Seedlings - physiology; single nucleotide polymorphism; Sodium nitroprusside (SNP); stress tolerance; Stress, Physiological; Vcyt; NO; Salt stress; nPG; qRT-PCR; EL; Medicago; AOX; MDA; Gene expression; Sodium nitroprusside (SNP); SNP; Alternative oxidase (AOX); ROS; Reactive oxygen (ROS); Valt; Medicago truncatula (Medicago); Vt; Nitric oxide (NO); RWC; Antioxidase enzymes

Exogenous application of sodium nitroprusside (SNP) would enhance the tolerance of plants to stress conditions. Some evidences suggested that nitric oxide (NO) could induce the expression of alternative oxidase (AOX). In this study, Medicago truncatula (Medicago) was chosen to study the role of AOX...