Ecological Factors Influencing Morphology and Tropane Alkaloid Content in Anisodus tanguticus (Maxim.) Pascher  

作　　者：Chen Chen Fengqin Liu Jianan Li Bo Wang Yuanming Xiao Tao Sun Guoying Zhou 

机构地区：[1]Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants,College of Life Sciences,Huaibei Normal University,Huaibei,235000,China [2]Chinese Academy of Sciences Key Laboratory of Tibetan Medicine Research,Northwest Institute of Plateau Biology,Xining,810008,China

出　　处：《Phyton-International Journal of Experimental Botany》2025年第3期973-986,共14页国际实验植物学杂志(英文)

基　　金：supported by Qinghai Science and Technology Achievement Transformation Project(2021-SF-149);Natural Science Fund of Education Department of Anhui Province(2024AH051669);Innovation and Entrepreneurship Training Program for College Students(S202410373040);Anhui Provincial College Student Innovation and Entrepreneurship Project(20221502032);School-Level Quality Engineering Project of Huaibei Normal University(2024xjsxyj003).

摘　　要：Anisodus tanguticus (Maxim.) Pascher, a medicinal plant in the Solanaceae family, is widely distributed across the Qinghai-Tibet Plateau. Its medicinal properties, particularly the tropane alkaloids, are influenced by various ecological factors, but the underlying ecological mechanisms remain poorly understood. This study aimed to investigate how key environmental variables influence both the morphological traits and tropane alkaloid contents of A. tanguticus, with the goal of providing data to support the sustainable cultivation and management of this species. We collected samples from 71 sites across its natural habitat, analyzing the effects of factors such as soil nutrients, altitude, and climate variables on plant traits and alkaloid composition. Statistical methods including Pearson correlation analysis, multiple regression, random forest analysis, and structural equation modeling were used to identify key environmental drivers. Our results indicate that available phosphorus significantly affects aboveground traits, while Cu concentration is most influential for root development. Altitude and longitude were found to be the main determinants of biomass accumulation. Regarding alkaloid content, Mg concentration in the soil was closely linked to anisodine levels, while altitude and latitude were the primary factors influencing anisodamine and atropine content, respectively. These findings provide essential insights into the ecological factors that govern the growth and medicinal compound production in A. tanguticus. Our research not only contributes to understanding the plant’s ecological requirements but also offers practical guidelines for selecting optimal cultivation conditions to enhance both yield and alkaloid quality, supporting sustainable use and conservation of this valuable medicinal resource.

关 键 词：A.tanguticus ecological factors morphological traits tropane alkaloids random forest analysis structural equation modeling 

分 类 号：TQ4[化学工程]