四川省蝉花自然分布与生境因子研究  

Research of Natural Distribution and Habitat Factors of Cordyceps cicadae in Sichuan Province

作　　者：李昊杰 郑吉阳 王敦[1] LI Hao-jie;ZHENG Ji-yang;WANG Dun(Institute of Entomology,Northwest A&F University,Yangling 712100,Shaanxi,China)

机构地区：[1]西北农林科技大学昆虫学研究所,陕西杨陵712100

出　　处：《西北林学院学报》2023年第2期180-184,共5页Journal of Northwest Forestry University

基　　金：国家重点研发计划项目(2018YFD0600202-03)。

摘　　要：对四川省蝉花资源分布进行调查,并分析蝉花自然分布与海拔、林地类型、光照、温度、坡度、相对湿度的相关性。结果发现,四川省蝉花自然分布区域有绵阳市安州区、北川羌族自治县通、乐山市犍为县、南充市蓬安县和金城山等地。先后分离获得蝉花菌分离株20株,经过分子鉴定蝉花种类分别为大蝉草和小虫草。相关生态因子分析发现,四川省蝉花生长密度与海拔没有相关性;四川省蝉花生长密度与光照强度、温度、坡度、相对湿度存在显著相关性。其中蝉花生长密度与光照强度正相关,但随着温度、坡度、相对湿度的升高呈现出先增加后减少的趋势。该研究首次对蝉花资源自然分布及其影响因子进行探索,对于深入了解蝉花的生物学及人工培育提供了重要的科学基础。The natural distribution of Cordyceps cicadae in Sichuan Province was investigated and its correlation with environmental factors was analyzed with altitude,forest type,sunlight intensity,temperature,slope and humidity.The C.cicadae in Sichuan naturally distributed in mountainous regions in Anzhou District and Beichuan County of Mianyang City,Qianwei County of Leshan City,Peng-an County and Jincheng Mountain of Nanchong City.Totally 20 isolates were collected and isolated.The identification indicated that the isolates belonged to two species,Cordyceps cicadae and Ophiocordyceps sobolifera.Among environmental factors,the altitude was not correlated with C.cicadae distribution density while the sunlight intensity,temperature,slope and humidity were significantly correlated with the density.The distribution density was positively correlated with the sunlight intensity and it increased and then decreased following the raising of temperature,slope and humidity.This study first reported of natural distribution and its environmental factors for C.cicadae resource and it might provide a basis for understanding the biology and artificial culture of C.cicadae.

关 键 词：蝉花 四川 自然分布 生长密度 环境因子 

分 类 号：S567.39[农业科学—中草药栽培]