The Family Flavobacteriaceae

McBride, Mark J.

doi:10.1007/978-3-642-38954-2_130

Cited by 120 publications

(115 citation statements)

References 266 publications

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“…They are currently being used to study its T9SS to provide a better understanding of the common features of this secretion system across the phylum Bacteroidetes. C. algicola belongs to a large group of marine bacteria that has been referred to as the marine clade of the family Flavobacteriaceae (21). These bacteria are abundant in many marine environments and have received attention because of their abilities to rapidly digest and modify diverse algal polysaccharides.…”

Section: Discussionmentioning

confidence: 99%

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Comparative Analysis of Cellulophaga algicola and Flavobacterium johnsoniae Gliding Motility

Zhu

McBride

2016

J Bacteriol

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Gliding motility is common in members of the phylum Bacteroidetes, including Flavobacterium johnsoniae and Cellulophaga algicola. F. johnsoniae gliding has been extensively studied and involves rapid movement of the cell surface adhesin SprB. Genetic analysis of C. algicola allowed a comparative analysis of gliding. Sixty-three HimarEm1-induced mutants that formed nonspreading colonies were characterized. Each had an insertion in an ortholog of an F. johnsoniae motility gene, highlighting similarities between the motility systems. Differences were also observed. C. algicola lacks orthologs of the F. johnsoniae motility genes gldA, gldF, and gldG that are thought to encode the components of an ATP-binding cassette (ABC) transporter. In addition, mutations in any of 12 F. johnsoniae gld genes result in complete loss of motility, whereas all C. algicola gld mutants retained slight residual motility. This may indicate that C. algicola has multiple motility systems, that the motility proteins exhibit partial redundancy of function, or that essential components of the motility machinery of both C. algicola and F. johnsoniae remain to be discovered. IMPORTANCEThe development of genetic tools for C. algicola and comparative analysis of F. johnsoniae and C. algicola motility mutants identified similarities and differences between their gliding motility machineries. Gliding motility is common in the phylum Bacteroidetes. Proteins that are important for gliding in both C. algicola and F. johnsoniae are potential core components of the Bacteroidetes gliding motility machinery. Many bacteria belonging to the phylum Bacteroidetes exhibit rapid gliding motility over surfaces (1). Gliding has been most well studied in Flavobacterium johnsoniae, in which the disruption of any of 11 gld genes (gldA, gldB, gldD, gldF, gldG, gldH, gldI, gldJ, gldK, gldL, and gldM) or deletion of gldN and its paralog gldO results in a complete loss of motility (2-10). These gld mutants form nonspreading colonies on agar, and individual cells exhibit no movement on glass or agar. Mutations in other F. johnsoniae genes (sprA, sprB, sprC, sprD, sprE, sprF, and sprT) result in partial motility defects (11-15). These spr mutants form nonspreading colonies composed of cells that exhibit some limited ability to glide on glass surfaces.sprB encodes an adhesin that is propelled rapidly along the cell surface and is thought to account for much of the gliding movement of F. johnsoniae (11, 16). The F. johnsoniae genome encodes other SprB-like proteins, such as RemA, which explains why sprB mutants exhibit some residual motility (17). Seven proteins (GldK, GldL, GldM, GldN, SprA, SprE, and SprT) comprise the type IX secretion system (T9SS) that is required for the delivery of SprB to the cell surface and for the secretion of dozens of other cell surface and extracellular proteins (14,15,18,19). SprF is also needed for the secretion of SprB but not for the secretion of other proteins targeted to the T9SS (13). The motor that propels SprB along the cel...

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Section: Discussionmentioning

confidence: 99%

“…The function of this transporter in gliding is not known, and comparative analysis of C. algicola and F. johnsoniae gliding might help reveal this function. Finally, C. algicola is a member of the large and diverse marine clade of the Flavobacteriaceae (20,21). These bacteria are abundant in marine environments.…”

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Comparative Analysis of Cellulophaga algicola and Flavobacterium johnsoniae Gliding Motility

Zhu

McBride

2016

J Bacteriol

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“…The mobile phase for RP-HPLC was methanol/ isopropyl ether (3 : 1, v/v) with the flow rate being controlled at 1 ml min 21 . The major respiratory quinone was MK-6 (accounting for 51.6 %), which is typical of members within the family Flavobacteriaceae (McBride, 2014). Other respiratory quinones of strain X14M-14 T were MK-5 (29.2 %) and MK-7 (19.2 %).…”

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confidence: 98%

“…At the time of writing, this family consisted of about 120 genera with validly published names, most members of which are characterized as aerobic, having rod-shaped cells and containing MK-6 as the major respiratory quinone (McBride, 2014). Members of the family Flavobacteriaceae are distributed globally in various environments, such as freshwater (Zhang et al, 2014), seawater (Park et al, 2013), sediment , sand (Zhang et al, 2013), plant tissue (Liu et al, 2013), fish (Shakeela et al, 2015) and so on.…”

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Planktosalinus lacus gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from a salt lake

Zhong

Liu

Wang

et al. 2016

International Journal of Systematic and Evolutionary Microbiology

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Planktosalinus lacus gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from a salt lake A Gram-staining-negative bacterium, strain X14M-14 T , was isolated from a salt lake (Lake Xiaochaidan) in Qaidam basin, Qinghai Province, China. Its taxonomic position was determined by using a polyphasic approach. Cells of strain X14M-14 T were non-spore-forming, non-motile rods. Strain X14M-14 T was strictly heterotrophic and aerobic, catalase-positive and oxidase-negative. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain X14M-14 T belonged to the family Flavobacteriaceae and formed a distinct lineage that was independent of the most closely related genera: Aequorivita (16S rRNA gene sequence similarities, 91.8-93.1 %) and Salinimicrobium (91.5-92.4 %). Strain X14M-14 T contained MK-6 as the major respiratory quinone, and phosphatidylethanolamine and two unknown lipids as the major polar lipids. The major cellular fatty acids were iso-C 15 : 0 , iso-C 15 : 1 G and iso-C 17 : 0 3-OH. The presence of iso-C 15 : 1 G as a predominant fatty acid could distinguish this strain clearly from the most closely related genera in the family Flavobacteriaceae. The DNA G+C content was 36.6 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain X14M-14 T represents a novel genus and species of the family Flavobacteriaceae, for which the name Planktosalinus lacus gen. nov., sp. nov. is proposed. The type strain is

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“…This family contains over 100 genera encompassing nearly 600 species retrieved from the EzTaxon database (Kim et al, 2012) and the AllSpecies Living Tree Project (LTP) database (Yilmaz et al, 2014). Due to its high diversity with bewildering complexity, this family is divided into five phylogenetic clades based on 16S rRNA gene sequence analysis, including Marine clade, Capnocytophaga clade, Flavobacterium clade, Tenacibaculum-Polaribacter clade, and Chryseobacterium clade (McBride, 2014).…”

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confidence: 99%

Pseudotenacibaculum haliotis gen. nov., sp. nov., a new member within the Tenacibaculum-Polaribacter clade of the family Flavobacteriaceae, isolated from the intestine of adult abalones, Haliotis diversicolor and H. discus hannai

Huang

Wang

Zhang

et al. 2016

International Journal of Systematic and Evolutionary Microbiology

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The Family Flavobacteriaceae

Cited by 120 publications

References 266 publications

Comparative Analysis of Cellulophaga algicola and Flavobacterium johnsoniae Gliding Motility

Comparative Analysis of Cellulophaga algicola and Flavobacterium johnsoniae Gliding Motility

Planktosalinus lacus gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from a salt lake

Pseudotenacibaculum haliotis gen. nov., sp. nov., a new member within the Tenacibaculum-Polaribacter clade of the family Flavobacteriaceae, isolated from the intestine of adult abalones, Haliotis diversicolor and H. discus hannai

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