《植物生理学报》 2018, 54(9): 1373-1383

植物中19S调节复合体各亚基的研究进展

潘晓英¹, 唐晓艳^{1, 2,*}

¹华南师范大学生命科学学院, 广东省植物发育生物工程重点实验室, 广州510631; ²深圳市作物分子设计育种研究院, 深圳518107

通信作者：唐晓艳；E-mail: txy@frontier-ag.com

摘　要：

泛素/26S蛋白酶体途径是一类普遍存在于真核生物中的蛋白降解途径, 兼具高效性和选择性。19S调节复合体作为26S蛋白酶体的必需组件, 在植物生长发育过程中具有关键作用。相对于动物而言, 植物中19S调节复合体亚基的研究严重滞后, 阻碍了人们对各亚基在植物中生物学功能的进一步认识和利用。本文综述了拟南芥以及其他高等植物发育过程中19S调节复合体各亚基行使的生物学功能及其在逆境胁迫中的调控作用, 并对进一步研究进行了展望, 将有助于理解19S调节复合体中各亚基在植物生长发育过程中的精细调控过程, 为揭示26S蛋白酶体亚基在不同植物中的功能提供参考。

关键词：26S蛋白酶体; 19S调节复合体; 植物生长发育; 逆境胁迫

收稿：2018-06-14   修定：2018-07-10

资助：广东省自然科学基金(2017A030310500)、中国博士后科学基金(2017M612685)。

Research advances on 19S proteasome regulatory subunits in plants

PAN Xiao-Ying¹, TANG Xiao-Yan^1,2,*

¹Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China; ²Shenzhen Institute of Molecular Crop Design, Shenzhen 518107, China

Corresponding author: TANG Xiao-Yan; E-mail: txy@frontier-ag.com

Abstract:

The ubiquitin/26S proteasome pathway is a specific and high-efficient route for protein degradation in eukaryote. 19S regulator is the essential subcomplexes of the 26S proteasome and is critical for plant growth and development. Most reports on the 19S regulator were from animals, while its function remains largely unknown in plant species, which prohibits further understanding and utilization of the function of 19S particle. Here, we summarize the biological function of 19S particle in Arabidopsis and other plants, and the role in response to abiotic stress. Moreover, we prospect the further study on this project. This review will not only advance our understanding how 19S particle function in plant growth and development, but also lay theoretic foundation for clarification the function of 26S proteasome in different plant species.

Key words: 26S proteasome; 19S regulator; plant development; adverse environment