Linked Life Data

7096265

Source:http://linkedlifedata.com/resource/pubmed/id/7096265

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1982-9-17
pubmed:abstractText
A conjugal plasmid which encodes both peak nodulation genes and nitrogenase genes, and which is labeled with the transposon Tn5, was transferred to a wild-type Rhizobium trifolii strain to examine the stability and expression of the host range and fixation (Fix+) phenotypes. Transconjugates were isolated which were shown to initially form nitrogen-fixing nodules (Nod+ Fix+) on both clovers and peas. These hybrid strains were then repeatedly passaged through either pea or clover nodules or onto a solid agar medium to determine whether these broadened-host-range characteristics were stably maintained. An instability was noted in the capacity of some of these hybrids to form nitrogen-fixing nodules on all of the host plants used. The broadened nodulation ability was, however, more readily maintained. In some cases, the changes in the Nod+ Fix+ phenotype could be attributed to demonstrable changes in the plasmid profile of the hybrid strains, whereas in other cases no demonstrable plasmid alterations could be detected.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-9193
pubmed:author
pubmed:issnType
Print
pubmed:volume
151
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
560-8
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Plasmids and stability of symbiotic properties of Rhizobium trifolii.
pubmed:publicationType
Journal Article