The phylogeny of members of the family Halomonadaceae, and of flavobacteria isolated from a hypersaline Antarctic lake ...

• Main Author: Dobson, S J
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Antarctic; Antarc*
• Online Access: https://dx.doi.org/10.25959/23232899; https://figshare.utas.edu.au/articles/thesis/The_phylogeny_of_members_of_the_family_Halomonadaceae_and_of_flavobacteria_isolated_from_a_hypersaline_Antarctic_lake/23232899

Two recently described species of the genus Halomonas occur in the microbiota of some Antarctic saline and hypersaline lakes. The genera Halomonas and Deleya, which comprise the family Halomonadaceae, are difficult to differentiate on the basis of phenotypic and chemotaxonomic attributes. rRNA:DNA hybridisation studies have indicated that some Halomonas spp. have the same level of relationship to the type species of the genus Deleya, as some Deleya spp. Near complete 16S rRNA sequences of 3 Deleya spp., 3 Halomonas spp., and Halovibrio variabilis are obtained by direct sequencing of the PCR-amplified 16S rRNA gene using a-35S dATP. The members of the genera Halomonas and Deleya do not form separate monophyletic subgroups in the phylogenetic trees, derived from the sequence data, confirming the lack of any phylogenetic support for their retention as separate genera. Halovibrio variabilis also clusters within this group of organisms. All the members of the Halomonadaceae examined, and Halovibrio variabilis, ...