水稻耐淹、耐盐、耐盐碱胁迫的遗传、生理机制及选育

IF 0.7 Q4 PLANT SCIENCES Plant Science Today Pub Date : 2023-09-27 DOI:10.14719/pst.2536
Syafiqah Alia Sazali, Noraziyah Abd Aziz Shamsudin, Mohd Y. Rafii, Mohd Shahril Firdaus Ab Razak, Muhammad Fahmi Yunus, Fatien Najwa Che Yah, Firdaus Ahmad, None MOHD SYAHMI SALLEH
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引用次数: 0

摘要

大米是一种主食,也是全球最重要的作物之一,为全球一半以上的人口提供食物。由于非生物胁迫发生率的增加,气候变化对农业部门,特别是水稻种植产生了至关重要的影响。盐度是全球水稻生产中最严重的非生物胁迫之一。盐胁迫显著降低水稻的生长性能,影响水稻的各种代谢和生理过程。淹水是影响水稻生长和产量的另一种非生物胁迫。最近,一个新出现的非生物胁迫称为盐淹也可能危及水稻生产。海水侵入邻近沿海地区的稻田可能造成含盐山洪暴发,特别是在季风季节。沿海地区种植的水稻容易受到盐渍化胁迫,导致产量显著降低。虽然Sub1和Saltol qtl被广泛应用于耐淹耐盐水稻品种的培育,但缺乏对Sub1和Saltol qtl选育品系在耐盐耐盐胁迫下潜在表现的研究。有推测认为,Sub1和Saltol qtl在水稻优良品种中的渗入可能会产生潜在的耐盐胁迫育种品系。然而,需要进行进一步的育种项目来证明这一假设。本文综述了耐淹耐盐水稻的遗传、生理机制和育种成果,同时强调了耐盐胁迫是水稻栽培中一种新兴的非生物胁迫类型。
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Genetics, Physiological Mechanism and Breeding for Tolerance against Submergence, Salinity, and Saline-Submergence Stress in Rice (Oryza sativa L.)
Rice is a staple food and one of the most crucial crops globally, providing sustenance for more than half of the world's population. Climate change has a crucial impact on the agricultural sector, particularly rice cultivation, due to the increase in abiotic stress incidences. Salinity is one of the most severe abiotic stresses on rice production globally. Salt stress significantly reduces growth performance, affecting various metabolic and physiological processes in rice. Submergence is another type of abiotic stress affecting rice growth and yield. Recently, a newly emerged abiotic stress called saline submergence may also jeopardize rice production. Seawater intrusion into rice fields located nearby coastal areas may cause saline flash floods, especially during monsoon season. Rice cultivated in coastal areas is prone to saline-submergence stress, leading to a significantly lower yield. Although Sub1 and Saltol QTLs are widely used in developing rice cultivars with submergence and salinity tolerance, there is a lack of studies conducted to explore the potential performance of breeding lines with Sub1 and Saltol QTLs under saline-submergence stress. It has been hypothesized that the introgression of Sub1 and Saltol QTLs into elite rice cultivars might result in potentially tolerant breeding lines to saline-submergence stress. Further breeding projects, however, need to be conducted to prove this postulation. The present mini-review deals with genetics, physiological mechanisms, and breeding achievements for submergence and salinity-tolerant rice while at the same time highlighting saline-submergence as an emerging type of abiotic stress in rice cultivation.
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来源期刊
Plant Science Today
Plant Science Today PLANT SCIENCES-
CiteScore
1.50
自引率
11.10%
发文量
177
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