新疆天然胡杨林和野生骆驼刺丛枝菌根真菌多样性研究初报  

Biodiversity of Arbuscular Mycorrhizal Fungi in the Natural Forests of Populus euphratica and Alhagi sparsifolia in Xinjiang

作　　者：王幼珊 陈理[2] 张淑彬[1] 柳妍妍[2] 

机构地区：[1]北京市农林科学院植物营养与资源研究所,北京100097 [2]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《干旱区研究》2010年第6期927-932,共6页Arid Zone Research

基　　金：新疆自然科学基金项目:"胡杨和骆驼刺根际丛枝菌根真菌的特性研究"(200721111);科技部平台项目:"农业微生物菌种资源整理;整合及共享试点子项目课题"(2005DKA21201-14-5)

摘　　要：为探明新疆常见的2种建群植物胡杨(Populus euphratica)和骆驼刺(Alhagi sparsifolia)丛枝菌根真菌的侵染状况、群落的种类和分布,在塔里木河中游和昌吉老龙河下游的胡杨林分别采集了13个土壤和根系样,在骆驼刺根周围分别采集了8个土壤和根系样,对土样中丛枝菌根真菌的种类和根系菌根的侵染状况进行了分析。结果表明:胡杨根周围AM真菌的优势种为缩球囊霉(Glomus constrictum)、大果球囊霉(G.macrocarpum)、沙荒球囊霉(G.deserticola)、透光球囊霉(G.diaphanum)和象牙白球囊霉(G.eburneum)。骆驼刺根周围AM真菌的优势种为沾屑多样孢囊霉(Diversispora spurcum)、摩西球囊霉(G.mosseae)和聚丛球囊霉(G.aggregatum)。胡杨根系侵染频度和侵染强度分别可达80%和100%,骆驼刺根系侵染频度和侵染强度分别达65%和90%。说明胡杨和骆驼刺是丛枝菌根依赖性很强的植物,且丛枝菌根真菌的多样性也十分丰富。The 13 samples of the soil and roots of natural forests of Populus euphratica collected from the middle reaches of Tarim River and the 8 samples of Alhagi sparsifolia collected from the lower reaches of Old Dragon River in Xinjiang were investigated Glomus constrictu,G. macrocarpum,G. deserticola,G. diaphanum and G. eburneum were the dominant genera in the soil and rhizosphere of Populus euphratica. Diversispora spurcum,G. mossea and G. aggregatum were the dominant genera in the soil and rhizosphere of A. sparsifolia. The root colonization rate and infection intensity of Populus euphratica were 80% and 100% ,and those of Alhagi sparsifolia were 65% and 90% ,respectively. The results show that the well symbionts were established between AM fungi and Populus euphratica or Alhagi sparsifolia.

关 键 词：丛枝菌根真菌 多样性 侵染 胡杨(Populus euphratica) 骆驼刺(Alhagi sparsifolia) 塔里木河 

分 类 号：S718[农业科学—林学]