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Advance in the Thermoinhibition of Lettuce (Lactuca sativa L.) Seed Germination

文献类型： 外文期刊

作者： Wei, Jinpeng 1 ; Zhang, Qi 1 ; Zhang, Yixin 1 ; Yang, Le 1 ; Zeng, Zhaoqi 3 ; Zhou, Yuliang 2 ; Chen, Bingxian 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Guangdong Prov Key Lab Crop Germplasm Resources P, Agrobiol Gene Res Ctr, Guangzhou 510640, Peoples R China

2.South China Agr Univ, Coll Agr, Guangzhou 510642, Peoples R China

3.Zhongkai Univ Agr & Engn, Coll Agr & Biol, Guangzhou 510550, Peoples R China

关键词： lettuce seeds; high-temperature germination; thermoinhibition; hormones; interactions; genetic expression

期刊名称：PLANTS-BASEL （ 影响因子：4.0； 五年影响因子：4.4 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 15 期

页码：

收录情况： SCI

摘要： Thermoinhibition refers to the inability of seeds to germinate when inhibited by high temperatures, but when environmental conditions return to normal, the seeds are able to germinate rapidly again, which is different from thermodormancy. Meanwhile, with global warming, the effect of the thermoinhibition phenomenon on the yield and quality of crops in agricultural production is becoming common. Lettuce, as a horticultural crop sensitive to high temperature, is particularly susceptible to the effects of thermoinhibition, resulting in yield reduction. Therefore, it is crucial to elucidate the intrinsic mechanism of action of thermoinhibition in lettuce seeds. This review mainly outlines several factors affecting thermoinhibition of lettuce seed germination, including endosperm hardening, alteration of endogenous or exogenous phytohormone concentrations, action of photosensitizing pigments, production and inhibition of metabolites, maternal effects, genetic expression, and other physical and chemical factors. Finally, we also discuss the challenges and potential of lettuce seed germination thermoinhibition research. The purpose of this study is to provide theoretical support for future research on lettuce seed germination thermoinhibition, and with the aim of revealing the mechanisms and effects behind lettuce seed thermoinhibition. This will enable the identification of more methods to alleviate seed thermoinhibition or the development of superior heat-tolerant lettuce seeds.

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