Flavobacteriales Bernardet 2012
General information
Description and emendation
The order Flavobacteriales is circumscribed for this volume on the basis of the phylogenetic analyses of the 16S rRNA sequences. This order contains the families Flavobacteriaceae, Blattabacteriaceae, and Cryomorphaceae. It consists of Gram-stain-negative, nonsporeforming rods or filaments devoid of gas vesicles and intracellular granules of poly-β-hydroxybutyrate, which usually multiply by binary fission; ring-shaped cells are not formed. Members of the family Blattabacteriaceae are nonmotile, nonflagellated, nonculturable and poorly characterized intracellular symbionts of insects. The families Flavobacteriaceae and Cryomorphaceae consist of strictly aerobic or facultatively anaerobic chemoorganotrophs with respiratory metabolism (fermentative metabolism occurs in a few members of the family Flavobacteriaceae), nonmotile or motile by gliding, with yellow or orange colonies due to the production of carotenoid and/or flexirubin type pigments. Many members of these families require NaCl or seawater salts for growth and most of them require organic compounds present in yeast extract, peptone and/or Casamino acids. Members of the family Flavobacteriaceae are widespread in soil or fresh, brackish or sea water in temperate, tropical or polar areas, while cultured members of the family Cryomorphaceae are so far restricted to low temperature marine habitats. Some members of the family Flavobacteriaceae are pathogenic for humans, sh, or amphibians. Menaquinone 6 (MK-6) is the major respiratory quinone in all members of the family Flavobacteriaceae. DNA G+C content (mol%): 27-56.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
MSG086838 | 'CAIKAF01 sp903837495' | Species | |
MSG071670 | 'Candidatus Chryseobacterium Cadiz_LYX31' | Species | |
MSG073440 | 'Flavobacteriales bacterium' | Species | |
MSG073378 | 'Flavobacteriumles bacterium' | Species | |
MSG095227 | 'Weeksellaceae bacterium' | Species | |
M0205040101 | Blattabacteriaceae | Family | 39782 |
M0205040102 | Crocinitomicaceae | Family | 1853230 |
M0205040103 | Cryomorphaceae | Family | 246874 |
M0205040104 | Flavobacteriaceae | Family | 49546 |
M0205040105 | Ichthyobacteriaceae | Family | 1755828 |
M0205040106 | Schleiferiaceae | Family | 1333713 |