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S1-bZIP Transcription Factors Play Important Roles in the Regulation of Fruit Quality and Stress Response

文献类型： 外文期刊

作者： Wang, Hong 1 ; Zhang, Yunting 2 ; Norris, Ayla 4 ; Jiang, Cai-Zhong 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Pomol, Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing, Peoples R China

2.Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA

3.Sichuan Agr Univ, Coll Hort, Chengdu, Peoples R China

4.USDA, Agr Res Serv, Crops Pathol & Genet Res Unit, Davis, CA 95616 USA

关键词： uORF; amino acid metabolism; sugar metabolism; biotic and abiotic stress; plant growth and development

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 12 卷

页码：

收录情况： SCI

摘要： Sugar metabolism not only determines fruit sweetness and quality but also acts as signaling molecules to substantially connect with other primary metabolic processes and, therefore, modulates plant growth and development, fruit ripening, and stress response. The basic region/leucine zipper motif (bZIP) transcription factor family is ubiquitous in eukaryotes and plays a diverse array of biological functions in plants. Among the bZIP family members, the smallest bZIP subgroup, S1-bZIP, is a unique one, due to the conserved upstream open reading frames (uORFs) in the 5 ' leader region of their mRNA. The translated small peptides from these uORFs are suggested to mediate Sucrose-Induced Repression of Translation (SIRT), an important mechanism to maintain sucrose homeostasis in plants. Here, we review recent research on the evolution, sequence features, and biological functions of this bZIP subgroup. S1-bZIPs play important roles in fruit quality, abiotic and biotic stress responses, plant growth and development, and other metabolite biosynthesis by acting as signaling hubs through dimerization with the subgroup C-bZIPs and other cofactors like SnRK1 to coordinate the expression of downstream genes. Direction for further research and genetic engineering of S1-bZIPs in plants is suggested for the improvement of quality and safety traits of fruit.

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