生物资源2025，Vol.47Issue(1)：40-48,9.DOI:10.14188/j.ajsh.20240708001
两型花植物孩儿参不同发育期内源激素水平的变化
Variation of endogenous hormone levels of different development stages in dimorphic flower plant Pseudostellaria heterophylla
摘要
Abstract
There is limited understanding of the relationship between endogenous hormone levels and development stages in dimorphic flower plants with sequential reproduction output characteristics.In this study,Pseudostellaria hetero-phylla,a typical dimorphic flower plant,was selected as the material,and the levels of 4 endogenous hormones in root tu-bers at 6 developmental stages were measured by high performance liquid chromatography(HPLC)and their ratios were calculated.The results showed that gibberellin A3(GA3)content increases at different developmental stages,and reaches its peak at the mature stage of cleistogamous flower fruit,but returns to a lower level at the maturing stage of root tubers.There are two peak values of abscisic acid(ABA),the peak value 1 appears at the peak stage of chasmogamous flower,and the peak value 2 at the peak stage of cleistogamous flower.Auxin(IAA)decreases slightly in the middle and early stages of development,but reaches its peak in the mature stage of cleistogamous flower seeds.Zeatin(ZT)is stable in the middle and early stages of development,but reaches its peak in the flowering stage of cleistogamous flowers and then be-gins to decline.The ratios of endogenous hormones(GA3/IAA,ABA/ZT,ABA/IAA,IAA/ZT)of the four groups showed a close relationship with the flowering frequency,flowering time,and the formation of tuber roots of chasmoga-mous and cleistogamous flowers,affecting the sequential reproductive output pattern of this species.关键词
孩儿参/内源激素/开放花/闭锁花/顺序性繁殖输出Key words
Pseudostellaria heterophylla/endogenous hormone/chasmogamous flower/cleistogamous flower/se-quential reproductive output分类
农业科技引用本文复制引用
苏诗越,胡文昭,张硕,张丽辉,张彦文..两型花植物孩儿参不同发育期内源激素水平的变化[J].生物资源,2025,47(1):40-48,9.基金项目
国家自然科学基金项目(31370400) （31370400）
