| Burkholderia and Cupriavidus spp. are the preferred symbionts of Mimosa spp. in Southern China. | |
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MedLine Citation:
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PMID: 22268711 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Rhizobia were isolated from invasive Mimosa spp. (M. diplotricha and M. pudica) in Dehong district of the province of Yunnan in subtropical southern China. Almost all of the 98 isolates were β-rhizobia in the genera Burkholderia and Cupriavidus. These strains were analyzed for their distribution characteristics together with strains from a previous study from Sishuangbanna. The proportion of nodules containing each β-rhizobial genus varied between Mimosa species, with Cupriavidus being predominant in M. diplotricha nodules (63.3% compared to 36.7% occupation with Burkholderia), but with M. pudica showing a slight preference for Burkholderia over Cupriavidus, with them occupying 56.5%, and 43.5% of nodules, respectively. The symbiosis-essential genes nodA and nifH were present in all the Burkholderia and Cupriavidus strains tested, and their phylogenies indicated that these Mimosa symbionts share symbiotic genes with native South American rhizobia. The evolutionary discrepancies among 16S rRNA genes, nodA and nifH of Mimosa spp. symbionts suggests that the nod and nif genes of β-rhizobia evolved independently. |
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Authors:
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Xiaoyun Liu; Shuang Wei; Fang Wang; Euan K James; Xiaoye Guo; Catherine Zagar; Liu Gui Xia; Xin Dong; Yi Peng Wang |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-23 |
Journal Detail:
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Title: FEMS microbiology ecology Volume: - ISSN: 1574-6941 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8901229 Medline TA: FEMS Microbiol Ecol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2012 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved. |
Affiliation:
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Key Laboratory of Microbial Diversity Research and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, 100072, China; Key Laboratory of Biodiversity Conservation in Southwest China, SFA, Southwest Forestry University, Kunming, 650224, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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