Abstract:
:A screening for hydrogen uptake (hup) genes in Rhizobium leguminosarum bv. viciae isolates from different locations within Spain identified no Hup+ strains, confirming the scarcity of the Hup trait in R. leguminosarum. However, five new Hup+ strains were isolated from Ni-rich soils from Italy and Germany. The hup gene variability was studied in these strains and in six available strains isolated from North America. Sequence analysis of three regions within the hup cluster showed an unusually high conservation among strains, with only 0.5-0.6% polymorphic sites, suggesting that R. leguminosarum acquired hup genes de novo in a very recent event.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Fernández D,Toffanin A,Palacios JM,Ruiz-Argüeso T,Imperial Jdoi
10.1016/j.femsle.2005.09.022keywords:
subject
Has Abstractpub_date
2005-12-01 00:00:00pages
83-8issue
1eissn
0378-1097issn
1574-6968pii
S0378-1097(05)00657-9journal_volume
253pub_type
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