ISSN:
1574-6968
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
A screening for h ydrogen up take (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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1016/j.femsle.2005.09.022