Photosynthetic Regulation Under Salt Stress and Salt-Tolerance Mechanism of Sweet Sorghum

Yang, Zhen, Li, Jin-Lu, Liu, Lu-Ning ORCID: 0000-0002-8884-4819, Xie, Qi and Sui, Na (2020) Photosynthetic Regulation Under Salt Stress and Salt-Tolerance Mechanism of Sweet Sorghum. FRONTIERS IN PLANT SCIENCE, 10. 1722-.

Text
487808_Sui_Manuscript 2.PDF - Author Accepted Manuscript
Download (687kB) | Preview

Official URL: http://dx.doi.org/10.3389/fpls.2019.01722

Abstract

Sweet sorghum is a C4 crop with the characteristic of fast-growth and high-yields. It is a good source for food, feed, fiber, and fuel. On saline land, sweet sorghum can not only survive, but increase its sugar content. Therefore, it is regarded as a potential source for identifying salt-related genes. Here, we review the physiological and biochemical responses of sweet sorghum to salt stress, such as photosynthesis, sucrose synthesis, hormonal regulation, and ion homeostasis, as well as their potential salt-resistance mechanisms. The major advantages of salt-tolerant sweet sorghum include: 1) improving the Na<sup>+</sup> exclusion ability to maintain ion homeostasis in roots under salt-stress conditions, which ensures a relatively low Na<sup>+</sup> concentration in shoots; 2) maintaining a high sugar content in shoots under salt-stress conditions, by protecting the structures of photosystems, enhancing photosynthetic performance and sucrose synthetase activity, as well as inhibiting sucrose degradation. To study the regulatory mechanism of such genes will provide opportunities for increasing the salt tolerance of sweet sorghum by breeding and genetic engineering.

Item Type:	Article
Uncontrolled Keywords:	sweet sorghum, salt-tolerance mechanism, Na+ exclusion, photosynthesis, sugar content
Depositing User:	Symplectic Admin
Date Deposited:	09 Dec 2019 11:30
Last Modified:	15 Nov 2023 17:54
DOI:	10.3389/fpls.2019.01722
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3065576