The molecular mechanism of plasma membrane H+-ATPases in plant responses to abiotic stress |
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| Affiliation: | 1. Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China;2. State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China;1. Instituto de Ciências Biológicas, Departamento de Botânica, Plant Physiology Laboratory, Federal University of Minas Gerais, Antonio Carlos, 6627, Bloco I-2, 316, Belo Horizonte, MG, 31270-901, Brazil;2. Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse-INP 24, chemin de Borde Rouge 31320 Auzeville-Tolosane, France;1. School of Life Sciences, Arizona State University, Tempe, AZ 852872, USA;2. USDA/ARS Children''s Nutrition Research Center, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA |
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| Abstract: | Plasma membrane H+-ATPases (PM H+-ATPases) are critical proton pumps that export protons from the cytoplasm to the apoplast. The resulting proton gradient and difference in electrical potential energize various secondary active transport events. PM H+-ATPases play essential roles in plant growth, development, and stress responses. In this review, we focus on recent studies of the mechanism of PM H+-ATPases in response to abiotic stresses in plants, such as salt and high pH, temperature, drought, light, macronutrient deficiency, acidic soil and aluminum stress, as well as heavy metal toxicity. Moreover, we discuss remaining outstanding questions about how PM H+-ATPases contribute to abiotic stress responses. |
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| Keywords: | Abiotic stress Molecular mechanism |
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