北方园艺Issue(10)：46-55,10.DOI:10.11937/bfyy.20253937
赤霉素对滇重楼种子萌发生理特性的影响
Effects of Gibberellin on Physiological Characteristics of Seed Germination of Paris polyphylla var.yunnanensis
摘要
Abstract
Taking seeds of Paris polyphylla Smith var.yunnanensis as the test materials,different concentrations of gibberellin 3(GA3)and gibberellin 4(GA4)were adopted.The effects of different gibberellin types and concentrations on seed germination and physiological regulation of Paris polyphylla Smith var.yunnanensis were studied by measuring seed germination rate,antioxidant enzyme activity,endogenous hormone content and nutrient content,in order to clarify the physiological mechanism of gibberellin regulating seed germination of Paris polyphylla Smith var.yunnanensis.The results showed that the order of germination and embryo rates across treatments was as follows,200 mg·L-1 GA3＞100 mg·L-1 GA4＞100 mg·L-1 GA3＞200 mg·L-1 GA4＞control(CK).The 200 mg·L-1 GA3 treatment significantly enhanced the activities of antioxidant enzymes such as superoxide dismutase(SOD)and catalase(CAT).It also promoted a shift in the metabolic pathway from the tricarboxylic acid(TCA)cycle to the pentose phosphate pathway(PPP).Furthermore,this treatment increased the contents of GA4 and indole-3-acetic acid(IAA),reduced abscisic acid(ABA)levels,and elevated the ratios of IAA/ABA and GA4/ABA.In addition,it facilitated the decomposition of starch and increased the contents of soluble protein and free amino acids.In conclusion,treatment with an appropriate concentration of GA3 can enhance both germination capacity and antioxidant capability in Paris polyphylla var.yunnanensis seeds,thereby supporting the cultivation of high-quality seedlings.关键词
滇重楼/萌发阶段/赤霉素/内源激素/抗氧化酶Key words
Paris polyphylla var.yunnanensis/germination stage/gibberellin/endogenous hormones/antioxidant enzymes分类
农业科技引用本文复制引用
符莹莹,苏锁材,赖佳辉,陆明,李婧媛,徐福荣..赤霉素对滇重楼种子萌发生理特性的影响[J].北方园艺,2026,(10):46-55,10.基金项目
云南省科技厅科技计划资助项目(202502AS090021,202304BI090004) （202502AS090021,202304BI090004）
国家自然科学基金资助项目(81860674) （81860674）
云南省中医药基础研究联合专项资助项目(202101AZ070001-115) （202101AZ070001-115）
云南省傣医药与彝医药重点实验室(云南中医药大学)资助项目(2024SS24086). （云南中医药大学）
