小肽激素调控植物生长发育及逆境生理研究进展.

Small peptide hormones are usually referred to as peptides containing 5 to 100 amino acids in length. In plants, the contents of small peptide hormones are very low, the molecular weight is small, the quantity is large, and the source and processing mechanism is complex. This gives small peptides a variety of biological functions. They can bind to receptors at very low concentrations, regulate physiological processes such as cell division and growth, tissue and organ differentiation, flowering and fruiting, maturation and senescence, and coordinate plant responses to various stress environments. As an important medium of signal transduction among cells, the molecular mechanism of small peptide hormones in regulating growth and development is the hotspot and front topic in Botany. First the research progress of the structure, synthesis, classification and function of small peptide hormones were systematically reviewed. Furthermore, the research progress of CIF, CLE, RALFs, PSK, SYS in regulating plant growth and development and stress physiology was emphatically summarized, and the application prospect of plant small peptide hormones was outlined, which may provide an important theoretical basis for the in-depth research, development and application of plant small peptide hormones [ABSTRACT FROM AUTHOR]

小肽激素通常是指含 5-100 个氨基酸长度的肽段。在植物体内小肽激素含量很低、分子量小、数量多、来源及加 工成熟机制复杂，这赋予了小肽多种多样的生物学功能，能够在极低浓度下与受体结合，调节植物的细胞分裂与生长、组织与器 官分化、开花与结实、成熟与衰老等生理过程，协调植物响应多种胁迫环境。小肽激素作为细胞间信号转导的重要介质，参与调 控生长发育的分子机制是近年来植物学科研究的热点和前沿。本文系统综述了小肽激素的结构、分类及其功能研究进展，重点讨 论了 CLE、RALFs、PSK、CIF、SYS 等家族调控植物生长发育及逆境生理的研究进展，并展望了植物小肽激素的应用前景，为植 物小肽激素的深层次研究和开发应用提供了重要的理论基础。 [ABSTRACT FROM AUTHOR]