International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Halobacteriaceae

This document contains the official minutes from the International Committee on Systematic Bacteriology's Subcommittee on the Taxonomy of Halobacteriaceae, held August 16, 1999, in Sydney, Australia. The subcommittee reviewed and approved multiple taxonomic actions involving halophilic archaea, including the description of new genera (Natrinema, Halogeometricum, Haloterrigena, Natronorubrum, Halorhabdus, and Halosimplex) and new species. Several existing taxa were reclassified or transferred between genera. The subcommittee also addressed quality control issues within microbial culture collections, including mislabeled strains in ATCC and NCIMB catalogs and the critical need to preserve historically important halobacterial strains from the National Research Council of Canada collection. Administrative matters included the re-election of the Chairman and Secretary for another six-year term and recommendations for standardizing three-letter genus abbreviations within the Halobacteriaceae family.

Key findings

• Multiple new genera and species of halophilic archaea were formally described or reclassified during this period, expanding the known diversity of Halobacteriaceae
• Significant problems with mislabeled and misidentified strains were identified in major culture collections, prompting the subcommittee to contact collection curators for nomenclatural corrections
• The historically important National Research Council of Canada halobacterial strain collection faced closure, with efforts undertaken to preserve these unique isolates for future research
• Standardized three-letter abbreviations were adopted for 15 genera within the Halobacteriaceae family to promote consistency in scientific literature