Allelopathic Potential and Mechanism of Rosebay Willowherb[Chamaenerion angustifolium(L.)Scop.]Demonstrated on Model Plant Lettuce
作者机构：Department of Natural Medicine and PharmacognosySchool of PharmacyQingdao UniversityQingdao266071China
出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)
年 卷 期：2021年第90卷第1期
页 面：159-170页
核心收录：
学科分类：09[农学] 0902[农学-园艺学] 090202[农学-蔬菜学]
基 金：This research was funded by Shandong Provincial Natural Science Foundation,China,Grant No.ZR2018BD030 Guangdong Key Laboratory of Marine Material Medica,Grant No.LMM2020-6
主 题：Chamaenerion angustifolium(L.)Scop. phytotoxicity seed germination seedling growth morphology reactive oxygen species
摘 要：Allelopathic plants are important resources for the discovery of *** willowherb[Chamaenerion angustifolium(L.)*** angustifolium L.]widely distributes in Western Asia,Europe,and North America,and behaves as a dominant species within the community due to the production of substances that restrict growth of other *** study aims at investigating the allelopathic potential of rosebay willowherb by evaluation of the effects of aqueous extracts from different parts on seed germination and seedling growth in lettuce(Lactuca sativa L.),as well as measuring the accumulation of reactive oxygen species and structural analysis of root tips via scanning electron and transmission electron *** was observed that the aqueous extracts from the leaves of rosebay willowherb had the strongest inhibitory effect on the germination index,germination energy and total germination of lettuce seeds,followed by capsular fruits and flowers,and the inhibition effect of stems was the *** aqueous extracts(100 mg/mL)showed a significant inhibitory effect on radicle elongation of lettuce ***,after treatment with the aqueous extract of rosebay willowherb leaves,accumulation of reactive oxygen species increased in columella cells,which correlated with disruption of root tip structure.
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