文献类型： 外文期刊

作者： Zheng, WW ¹ ; Song, TY ² ; Bao, XD ² ; Bergman, B ² ; Rasmussen, U ² ;

作者机构： 1.Univ Stockholm, Dept Bot, S-10691 Stockholm, Sweden

2.Univ Stockholm, Dept Bot, S-10691 Stockholm, Sweden; Fujian Acad Agr Sci, Ctr Biotechnol, Fujian 350003, Peoples R China

期刊名称：FEMS MICROBIOLOGY ECOLOGY （ 影响因子：4.194； 五年影响因子：5.137 ）

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收录情况： SCI

摘要： The genetic diversity of symbiotic cyanobacteria in coralloid roots of cycads was examined using PCR fingerprinting with primers derived from repetitive sequences. The highest genetic resolution was achieved using the primer corresponding to the short tandemly repeated repetitive sequences. The cyanobacteria were collected from the coralloid roots of a large number of indigenous cycad plants and used directly in the PCR. It could be demonstrated that numerous cyanobacteria were present in a single coralloid root. Even within a single cluster in the coralloid root, diversity could be observed between the apical, middle and basal regions. (C) 2002 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved. [References: 24]