Isolation of Cave Bacteria and Substrate Utilization at Different Temperatures

Bacteria isolated from the soils of three northern Spain caves were investigated for their growth at temperatures in the range 5-45 degree C, substrate utilization pattern, and cellular fatty acid components. All tested bacteria were able to grow comparatively well in a range of temperatures from 13...

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Published inGeomicrobiology journal Vol. 20; no. 5; pp. 479 - 489
Main Authors Laiz, L, Gonzalez-Delvalle, M, Hermosin, B, Ortiz-Martinez, A, Saiz-Jimenez, C
Format Journal Article
LanguageEnglish
Published 01.10.2003
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Summary:Bacteria isolated from the soils of three northern Spain caves were investigated for their growth at temperatures in the range 5-45 degree C, substrate utilization pattern, and cellular fatty acid components. All tested bacteria were able to grow comparatively well in a range of temperatures from 13 degree to 45 degree C. At 13 degree C the bacteria oxidized on average 87% of carbon sources provided while incubation at 28 degree C reduced to about 50% carbon source utilization. Changes in fatty acid profiles reflected an adaptative response to temperature. The results suggest the need of using low temperatures to detect maximum diversity of culturable bacteria (other than actinomycetes) and efficiency of carbon utilization by cave bacteria.
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ISSN:0149-0451
1521-0529
DOI:10.1080/01490450390237175