广西科学院学报2025，Vol.41Issue(2)：182-190,9.DOI:10.13657/j.cnki.gxkxyxb.20250722.004
无患子果实表型性状与皂苷含量以及抗菌活性研究
Study on Phenotypic Traits,Saponin Content and Saponin Anti-bacterial Activity of Sapindus mukorossi Fruit
摘要
Abstract
In order to explore the relationship between fruit phenotypic traits and saponin content of Sapindus mukorossi,and the inhibitory activity of S.mukorossi peel saponins against plant pathogens,10 seedlings of S.mukorossi in Dushan County,Qiannan Buyi and Miao Autonomous Prefecture,Guizhou Province were se-lected in this study.The phenotypic traits and the content of hederagenin were determined and Pearson corre-lation analysis was performed.The antibacterial activity of S.mukorossi peel saponins was determined by in-hibition zone method and mycelium growth rate method.The results showed that the fruit phenotypic traits of B4 were the best,and the fruit transverse diameter,longitudinal diameter,lateral diameter and single fruit fresh weight were the highest.B1 had the best fruit quality traits,and the contents of hederagenin and total saponins were the highest.Pearson correlation analysis showed that the content of hederagenin was signifi-cantly negatively correlated with fruit fresh weight,fruit dry weight,peel dry weight,fruit transverse diame-ter and whole fruit weight.Among them,the negative correlation coefficient between the content of hederage-nin and peel dry weight was the largest(-0.43),that is,the higher the content of hederagenin in the fruit of S.mukorossi with thin skin,small and light fruit.The results of antibacterial activity showed that S.mukorossi pell saponins had the strongest inhibitory activity against Xanthomonas vesicatoria.When the ef-fective mass of the test sample was 0.2 mg,the diameter of the inhibition zone was 10.31 mm.The results of antifungal activity showed that S.mukorossi peel saponins had the strongest inhibitory activity against Colle-totrichum guangxiense,and the median effect concentration(EC50)value was 36.30 μg·mL-1.The results of this study can provide a theoretical basis for the comprehensive development and utilization of S.mukoros-si resources.关键词
无患子/优良单株/皂苷/抗菌活性Key words
Sapindus mukorossi/excellent single plant/saponin/antibacterial activity分类
农业科技引用本文复制引用
李冉,利建林,熊家辉,秦楷,毛子翎,黄永芳,单体江..无患子果实表型性状与皂苷含量以及抗菌活性研究[J].广西科学院学报,2025,41(2):182-190,9.基金项目
教育部产学合作协同育人项目(202102195004),甘肃省委组织部2023年度陇原青年创新创业人才(团队)项目(2023LQTD26),云浮市科技计划项目(2021020605)和国家现代农业产业技术体系项目(CARS-21)资助. （202102195004）
