Document Detail


Biological behavior of plasmid in Rhizobium sp. strain S25 from Tephrosia candida.
MedLine Citation:
PMID:  9735317     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Rhizobium sp. strain S25 was isolated from the nodule on Tephrosia candida in Hainan Province, China. The strain showed high stress tolerance. The plasmid profile of strain S25, examined by the Eckhardt procedure, indicated that the strain harbors only one plasmid with an estimated size of 150 kb. The plasmid was shown to carry nod and nif genes by hybridization with probes of nodABC and nifHDK genes. Plasmid curing was carried out using the Bacillus subtilis sacB to generate derivatives of strain S25. In comparison with the parent strain S25, the cured derivative lost its ability to nodulate the host plant. Loss of the plasmid reduced significantly the strain's tolerance to acid, nitrous, and multiple antibiotics. The properties of the cured strain also indicated that the plasmid was involved in carbon and nitrogen metabolism. Reintroduction of the plasmid from S25 in the cured derivative restored its original biological phenotypes.
Authors:
X Zou; X L Feng; W X Chen; F D Li
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Plasmid     Volume:  40     ISSN:  0147-619X     ISO Abbreviation:  Plasmid     Publication Date:  1998 Sep 
Date Detail:
Created Date:  1999-01-15     Completed Date:  1999-01-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7802221     Medline TA:  Plasmid     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  158-63     Citation Subset:  IM    
Affiliation:
College of Biological Sciences, China Agricultural University, Beijing, People's Republic of China. zouxh@rocketmail.com
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MeSH Terms
Descriptor/Qualifier:
DNA, Bacterial*
Fabaceae / microbiology*
Plants, Medicinal*
Plasmids*
Rhizobium / genetics*
Chemical
Reg. No./Substance:
0/DNA, Bacterial

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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