热带农业科学2025，Vol.45Issue(9)：47-51,5.DOI:10.12008/j.issn.1009-2196.2025.09.007
脱水胁迫下桑寄生种子相关生理指标的变化
Changes in Related Physiological Indexes in Taxillus chinensis(DC.)Seeds Under Dehydration Stress
摘要
Abstract
To understand the dehydration sensitivity and recalcitrance of Taxillus chinensis(DC.)Danser seeds,this study investigated the effects of different dehydration durations on the seeds by measuring changes in soluble sugar content,starch content,relative electrical conductivity of the seed leachate,soluble protein content,and cytochrome oxidase content during dehydration stress.The results revealed that with increasing dehydration time,the seed water content gradually decreases.However,the soluble sugar content,starch content,soluble protein content,cytochrome oxidase content,and relative electrical conductivity of the seed leachate all tended to increase first but then decreased.In the early stage of dehydration,the soluble sugar content,starch content,and relative electrical conductivity of the seed leachate increased significantly;in the late stage,the starch content and cytochrome oxidase content decreased significantly.These findings indicate that the seeds were affected to varying degrees during dehydration stress.The results not only lay a foundation for developing key technologies for pre-serving Taxillus chinensis(DC.)Danser seeds but also provide a theoretical basis for the dehydration repair mechanism of recalcitrant seeds.关键词
桑寄生/顽拗性种子/脱水胁迫/脱水敏感性/生理指标Key words
Taxillus chinensis(DC.)Danser/recalcitrant seeds/dehydration stress/dehydration sensitivity/physiological indices分类
农业科技引用本文复制引用
潘丽梅,李林轩,肖潇,宋利沙,万凌云,韦树根..脱水胁迫下桑寄生种子相关生理指标的变化[J].热带农业科学,2025,45(9):47-51,5.基金项目
广西自然科学基金项目(No.2022GXNSFAA035557) （No.2022GXNSFAA035557）
广西岐黄学者培养项目(No.GXQH202402) （No.GXQH202402）
广西中医药管理局项目(No.GXZYA20230014). （No.GXZYA20230014）
