河南农业科学2024，Vol.53Issue(3)：118-124,7.DOI:10.15933/j.cnki.1004-3268.2024.03.012
芍药根茎形成发育过程中内源激素和碳水化合物的变化
Changes of Endogenous Hormones and Carbohydrates during Rhizome Formation and Development of Herbaceous Peony
摘要
Abstract
The rhizome of herbaceous peony is the precondition and foundation for plants to regenerate naturally and ramet propagation.It's important to clarify the changes of endogenous hormones and carbohydrates during the formation and development of rhizome of herbaceous peony.The seedlings of herbaceous peony were taken as the materials to observe the morphological changes as well as the changes of endogenous hormones and carbohydrates.The results showed that the formation and development of rhizomes could be divided into four stages:vegetative growth stage(Ⅰ),rhizome transition stage(Ⅱ),expansion stage(Ⅲ)and late expansion stage(Ⅳ).There were many differences in endogenous hormones during the early stages of rhizomes formation and development.The content of ABA and GA3 increased sharply during the rhizome transition stage(Ⅱ),reached the peak(94.96 ng/g and 541.53 ng/g)and then decreased significantly.ABA and GA3 jointly regulated the initial formation of rhizomes.Auxins and cytokinins were highly expressed during the rhizome transition stage(Ⅱ)and expansion stage(Ⅲ),which played a dominant role in the development and expansion of rhizomes.The content of glucose and fructose decreased significantly during the rhizome transition stage(Ⅱ)and maintained a lower level in the late stages.However,the content of sucrose and starch assumed a trend of increasing with the formation and development of rhizomes,which were the main carbohydrates stored and accumulated in rhizomes.关键词
芍药/根茎/内源激素/碳水化合物Key words
Herbaceous peony/Rhizome/Endogenous hormone/Carbohydrate分类
农业科技引用本文复制引用
王慧娟,王二强,符真珠,李艳敏,王晓晖,袁欣,高杰,王利民,张和臣..芍药根茎形成发育过程中内源激素和碳水化合物的变化[J].河南农业科学,2024,53(3):118-124,7.基金项目
河南省农业科学院基础性科研项目(2023JC04) （2023JC04）
