串扰
油菜素甾醇
细胞生物学
生物
生长素
GTP酶
CDC42型
脱落酸
细胞信号
鸟嘌呤核苷酸交换因子
信号转导
细胞分裂素
细胞分裂
形态发生
拟南芥
细胞
生物化学
突变体
物理
光学
基因
作者
Huayu Tian,Rui Li,Peishan Yi
摘要
Rho of Plants (ROPs) constitute a plant-specific subset of small guanine nucleotide-binding proteins within the Cdc42/Rho/Rac family. These versatile proteins regulate diverse cellular processes, including cell growth, cell division, cell morphogenesis, organ development, and stress responses. In recent years, the dynamic cellular and subcellular behaviors orchestrated by ROPs have unveiled a notable connection to hormone-mediated organ development and physiological responses, thereby expanding our knowledge of the functions and regulatory mechanisms of this signaling pathway. This article delineates advancements in understanding the interplay between plant hormones and the ROP signaling cascade, centering primarily on the connections with auxin and abscisic acid pathways, alongside preliminary discoveries in cytokinin, brassinosteroid, and salicylic acid responses. It endeavors to shed light on the intricate, coordinated mechanisms bridging cell-level and tissue-level signals that underlie plant cell behavior, organ development, and physiological processes, and highlight future research prospects and challenges in this rapidly developing field.
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