Linked Life Data

10489695

Source:http://linkedlifedata.com/resource/pubmed/id/10489695

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-10-20
pubmed:abstractText
The genetic basis of symbiosis, mucoid structure and melanin biosynthesis in a local isolate of Rhizobium cicer was investigated. The strain was a very effective symbiont and produced substantial amounts of exopolysaccharides and melanin. It harbored three high-molar-mass plasmids of 55, 80 and 130 kb, respectively. Thirty-one melanin production-negative (Mep-) derivatives were obtained through plasmid curing. The plasmid patterns of cured derivatives indicated that the loss of 55 and/or 80 kb plasmids was sufficient for obtaining Mep- phenotype. The specific involvement of 55-kb plasmid in melanin production was confirmed upon re-introduction of this plasmid into one of the Mep- derivatives. Further investigation also indicated that the 130-kb plasmid might be necessary for both mucoidal appearance and symbiotic functions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0015-5632
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
55-8
pubmed:dateRevised
2006-5-1
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Assignment of biological functions to specific plasmids in a local isolate of Rhizobium cicer.
pubmed:affiliation
Department of Biological Sciences, Middle East Technical University, Ankara, Turkey.
pubmed:publicationType
Journal Article