巴朗山雪莲居群特征与海拔的相关性研究

Phenotypic Characteristics Research on Correlation of Saussurea balangshanensis Populations to Altitude

摘要:

为优化资丘木瓜的产地初加工工艺提供依据，探究产地鲜储对资丘木瓜质量的影响，参照《中华人民共和国药典》(2020版)一部木瓜项下方法测定鲜资丘木瓜和鲜储资丘木瓜加工后的药材质量。利用气相色谱-质谱联用(GC-MS)技术检测分析鲜资丘木瓜和鲜储资丘木瓜中挥发油的化学成分，并对挥发油中主要成分进行体外抑菌实验。结果表明：鲜资丘木瓜和鲜储资丘木瓜加工后的药材质量无显著差异，符合药典标准。储藏后的资丘木瓜挥发油总量下降56.65%,成分种类和相对含量变化明显。储藏后挥发油中柠檬烯与左旋乙酸冰片酯含量显著提升，分别从27.13%提升至38.32%,从4.43%提升至28.43%,二者对青霉具有有良好的抑菌活性，柠檬烯与左旋乙酸冰片酯半数抑菌浓度均为0.16μL·mL-1。资丘木瓜产地鲜储后药材主要质量指标稳定，为产地鲜储待加工提供了依据。资丘木瓜挥发性成分具有防霉变作用，有利于为资丘木瓜鲜储期质量稳定提供保障。

Abstract:

The research on correlation of 10 Saussurea balangshanensis populations to different altitude which distributed on Balang Mountain in National Natural Reserve of Sichuan Wolong.The results indicated the species richness of S.balangshanensis populations and number of target plant all showed an invert-U-shaped curve, which had significantly(P<0.05)and most significantly(P<0.01)quadratic regression equation with the altitude.There was a significantly positive correlation between petiole length and altitude(P<0.01),a very significanty negative correlation between flower diameter and altitude(P<0.01),none correlation between number of flowers and altitude.The results provide a important reference for exploits and studies on conservation in the future.