Research Advances and Prospect on Seed Vigor and Shelf Life of Rice (Oryzae sativa L.)
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摘要: 水稻储藏时的陈化变质问题对水稻生产和育种造成严重的损失, 因此, 提高稻谷的耐储性具有重要的意义。本文分析了种子活力与耐储性之间的关系, 并从脂类代谢与氧化、氧化胁迫与抗氧化系统、植物自身修复系统等3方面总结了水稻种子活力和耐储性研究的最新进展, 阐述了植物自身的保护和修复途径对于种子活力和耐储性研究的潜在意义, 为研究水稻种子劣变机理和培育耐储藏的水稻优良品种提供了新思路。Abstract: Deterioration and viability loss of rice grains during storage could greatly affect the national food security and rice breeding. Thus, prolonging the shelf life of rice is of significant interest for the farmers and the researchers. This article reviews the relationship between the seed vigor and shelf life, as well as the current progress in the field of study from three aspects,i.e., the lipid metabolism and oxidation, oxidative stress and antioxidant system, and the plant repair mechanisms. The defi ciencies in the existing studies are discussed. The protective and repair mechanisms of the plants are specifically elaborated as they were considered critical in better understanding the seed deterioration and in providing guidelines for the breeding of rice varieties with desirable shelf life.
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Key words:
- rice /
- seed vigor /
- storage shelf life
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