文献类型： 外文期刊

作者： Gong, Diankai ¹ ; He, Fei ² ; Liu, Jingyan ² ; Zhang, Cheng ¹ ; Wang, Yanrong ¹ ; Tian, Shujun ¹ ; Sun, Chi ¹ ; Zhang, Xue ¹ ;

作者机构： 1.Liaoning Rice Res Inst, Shenyang 110115, Peoples R China

2.Tianjin Acad Agr Sci, Tianjin Crop Res Inst, Tianjin Key Lab Crop Genet & Breeding, Tianjin 300384, Peoples R China

关键词： seed germination; rice; abscisic acid; gibberellin; hormone signaling; transcription factors

期刊名称：LIFE-BASEL （ 影响因子：3.251； ）

ISSN：

年卷期： 2022 年 12 卷 7 期

页码：

收录情况： SCI

摘要： Seed germination is a critical stage during the life cycle of plants. It is well known that germination is regulated by a series of internal and external factors, especially plant hormones. In Arabidopsis, many germination-related factors have been identified, while in rice, the important crop and monocot model species and the further molecular mechanisms and regulatory networks controlling germination still need to be elucidated. Hormonal signals, especially those of abscisic acid (ABA) and gibberellin (GA), play a dominant role in determining whether a seed germinates or not. The balance between the content and sensitivity of these two hormones is the key to the regulation of germination. In this review, we present the foundational knowledge of ABA and GA pathways obtained from germination research in Arabidopsis. Then, we highlight the current advances in the identification of the regulatory genes involved in ABA- or GA-mediated germination in rice. Furthermore, other plant hormones regulate seed germination, most likely by participating in the ABA or GA pathways. Finally, the results from some regulatory layers, including transcription factors, post-transcriptional regulations, and reactive oxygen species, are also discussed. This review aims to summarize our current understanding of the complex molecular networks involving the key roles of plant hormones in regulating the seed germination of rice.