蛋白核：藻类中具有高效二氧化碳浓缩机制的细胞器。

Pyrenoid: Organelle with efficient CO-Concentrating mechanism in algae.

作者信息

An Yaqi, Wang Dong, Du Jingxia, Wang Xinwei, Xiao Jianwei

机构信息

College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China; National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China.

College of Agriculture and Forestry, Hebei North University, Zhangjiakou, China.

出版信息

J Plant Physiol. 2023 Aug;287:154044. doi: 10.1016/j.jplph.2023.154044. Epub 2023 Jun 25.

DOI:10.1016/j.jplph.2023.154044

PMID:37392525

Abstract

The carbon dioxide emitted by human accounts for only a small fraction of global photosynthesis consumption, half of which is due to microalgae. The high efficiency of algae photosynthesis is attributed to the pyrenoid-based CO-concentrating mechanism (CCM). The formation of pyrenoid which has a variety of Rubisco-binding proteins mainly depends on liquid-liquid phase separation (LLPS) of Rubisco, a CO fixing enzyme. At present, our understanding of pyrenoid at the molecular level mainly stems from studies of the model algae Chlamydomonas reinhardtii. In this article, we summarize the current research on the structure, assembly and application of Chlamydomonas reinhardtii pyrenoids, providing new ideas for improving crop photosynthetic performance and yield.

摘要

人类排放的二氧化碳仅占全球光合作用消耗的一小部分，其中一半是由微藻造成的。藻类光合作用的高效率归因于基于蛋白核的二氧化碳浓缩机制（CCM）。具有多种Rubisco结合蛋白的蛋白核的形成主要取决于二氧化碳固定酶Rubisco的液-液相分离（LLPS）。目前，我们对蛋白核在分子水平上的理解主要源于对模式藻类莱茵衣藻的研究。在本文中，我们总结了目前对莱茵衣藻蛋白核的结构、组装和应用的研究，为提高作物光合性能和产量提供了新的思路。