The Arabidopsis thaliana Glycine-rich RNA Binding Proteins atGRP7 and atGRP2 Are Involved in Early Development

ProEnvironment Promediu

Oana Ciuzan¹ 

[1] USAMV-CN, IPM

关键词: Arabidopsis thaliana;    glycine-rich proteins (GRP);    abscisic acid (ABA);    abscisic acid insensitive mutants (ABI).;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Bioflux SRL

【 摘 要 】

The glycine-rich RNA-binding proteins ofArabidopsis thalianaare of growing interest in the context of understanding how plants respond to biotic and abiotic stresses. In this study we focus on the phenotypic analysis ofArabidopsisknock-out mutants of genes that encode the glycine-rich proteinsatGRP2andatGRP7,comparing them to knock-out mutants ofABI3 ,ABI4andABI5,genes linked to cell signaling through the plant hormone abscisic acid (ABA). The results show that the abscisic acid insensitive (ABI) mutants developed faster than wild-type plants. In contrast the glycine-rich protein knock-out mutants ( grp7-1andgrp2 ) did not grow as well, suggesting an involvement of these genes in key early developmental processes. There was a significant difference in the phenotype of the knock-out mutantsgrp2andgrp7-1,suggesting thatatGRP7andatGRP2have overlapping yet distinct roles in development.

【 授权许可】

CC BY