El-Sappah Ahmed H, Li Jia, Yan Kuan, Zhu ChaoYang, Huang Qiulan, Zhu Yumin, Chen Yu, El-Tarabily Khaled A, AbuQamar Synan F
College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China.
Department of Genetics, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.
Front Plant Sci. 2024 Oct 29;15:1453974. doi: 10.3389/fpls.2024.1453974. eCollection 2024.
Fibrillins (FBNs), highly conserved plastid lipid-associated proteins (PAPs), play a crucial role in plant physiology. These proteins, encoded by nuclear genes, are prevalent in the plastoglobules (PGs) of chloroplasts. FBNs are indispensable for maintaining plastid stability, promoting plant growth and development, and enhancing stress responses. The conserved PAP domain of FBNs was found across a wide range of photosynthetic organisms, from plants and cyanobacteria. FBN families are classified into 12 distinct groups/clades, with the 12th group uniquely present in algal-fungal symbiosis. This mini review delves into the structural attributes, phylogenetic classification, genomic features, protein-protein interactions, and functional roles of FBNs in plants, with a special focus on their effectiveness in mitigating abiotic stresses, particularly drought stress.
原纤维蛋白（FBNs）是高度保守的质体脂质相关蛋白（PAPs），在植物生理学中起着至关重要的作用。这些由核基因编码的蛋白质普遍存在于叶绿体的质体小球（PGs）中。FBNs对于维持质体稳定性、促进植物生长发育以及增强应激反应不可或缺。FBNs保守的PAP结构域在从植物到蓝细菌等广泛的光合生物中都有发现。FBN家族分为12个不同的组/进化枝，第12组仅存在于藻类 - 真菌共生体中。这篇综述探讨了FBNs在植物中的结构特性、系统发育分类、基因组特征、蛋白质 - 蛋白质相互作用以及功能作用，特别关注它们在减轻非生物胁迫，尤其是干旱胁迫方面的有效性。
