These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Confirmation that Thiobacillus halophilus and Thiobacillus hydrothermalis are distinct species within the gamma-subclass of the Proteobacteria.
    Author: Kelly DP, Stackebrandt E, Burghardt J, Wood AP.
    Journal: Arch Microbiol; 1998 Aug; 170(2):138-40. PubMed ID: 9683651.
    Abstract:
    Thiobacillus halophilus and Thiobacillus hydrothermalis share 98.7% similarity in 16S rRNA sequence, possess similar gross DNA composition (64.2 and 67.4 mol% G+C values, respectively), and have similar physiological properties. While this might have indicated that they were strains of a single species, DNA-DNA hybridization between the type strains of the two species showed only 59% hybridization, indicating the organisms to be different at the species level. Thiobacillus neapolitanus is the phylogenetically nearest neighbour of T. halophilus and T. hydrothermalis (91.6-92.1% similarity in 16S rRNA sequence) and is the only other Thiobacillus in the gamma-subclass of the Proteobacteria that can be regarded as exclusively related to these two species. The 16S rRNA gene sequences of these three species are so different from those of the other thiobacilli in the gamma-subclass that they justify recognition as a distinct phyletic group. Their comparative properties are summarized.
    [Abstract] [Full Text] [Related] [New Search]