<i>Flavobacteriaceae</i>

Bernardet, Jean‐François

doi:10.1002/9781118960608.fbm00069

Cited by 17 publications

(10 citation statements)

References 155 publications

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“…However, the differences in rearing conditions allowed us to compare 'cold start' with high stocking densities and low stocking densities. Bernardet, 2015;Bowman & McMeekin, 2015;Deming & Junge, 2015;Kim, 2015;McIlroy & Nielsen, 2014;Nedashkovskaya & Kim, 2019;Xiao et al, 2019). However, few of the dominating taxa detected at genus level in this study were recognized among dominating taxa described in previous studies from aquaculture systems (Brailo et al, 2019;Rurangwa & Verdegem, 2015;Schreier et al, 2010).…”

Section: Discussioncontrasting

confidence: 64%

A case study of biofilter activation and microbial nitrification in a marine recirculation aquaculture system for rearing Atlantic salmon (Salmo salarL.)

et al. 2020

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Section: Discussioncontrasting

confidence: 64%

A case study of biofilter activation and microbial nitrification in a marine recirculation aquaculture system for rearing Atlantic salmon (Salmo salarL.)

et al. 2020

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“…Chemotaxonomic analysis supported the result of the phylogenetic analysis. The sole respiratory quinone detected in strain A3-108 T was consistent with members of the family Flavobacteriaceae (Bernardet 2015 ). The components iso-C 17:0 3-OH and iso-C 15:0 were major fatty acids in strain A3-108 T and the reference strains (Table 2 ).…”

Section: Resultssupporting

confidence: 54%

Luteirhabdus pelagi gen. nov., sp. nov., a novel member of the family Flavobacteriaceae, isolated from the West Pacific Ocean

et al. 2021

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A Gram-stain-negative, aerobic, and yellow-pigmented bacterium, designated A3-108T, was isolated from seawater of the West Pacific Ocean. Cells were non-motile and rod-shaped, with carotenoid-type pigments. Strain A3-108T grew at pH 6.0–8.5 (optimum 6.5) and 15–40 °C (optimum 28 °C), in the presence of 0.5–10% (w/v) NaCl (optimum 1.0%). It possessed the ability to produce H2S. Based on the 16S rRNA gene analysis, strain A3-108T exhibited highest similarity with Aureisphaera salina A6D-50T (90.6%). Phylogenetic analysis shown that strain A3-108T affiliated with members of the family Flavobacteriaceae and represented an independent lineage. The principal fatty acids were iso-C15:0, iso-C17:0 3-OH, iso-C15:1 G, and summed feature 3 (C16:1ω7c and/or C16:1ω6c). The sole isoprenoid quinone was MK-6. The major polar lipids were phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified aminolipid and one unidentified lipid. The ANIb, in silico DDH and AAI values among the genomes of strain A3-108T and three reference strains were 67.3–71.1%, 18.7–22.1%, and 58.8–71.4%, respectively. The G + C content was 41.0%. Distinctness of the phylogenetic position as well as differentiating chemotaxonomic and other phenotypic traits revealed that strain A3-108T represented a novel genus and species of the family Flavobacteriaceae, for which the name Luteirhabdus pelagi gen. nov., sp. nov. is proposed (type strain, A3-108T = CGMCC 1.18821T = KCTC 82563T).

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“…The taxa within each domain are associated with an aerobic and heterotrophic lifestyle (Dupont et al, 2012; West et al, 2016) or ammonia oxidation (Konneke et al, 2005; Swan et al, 2014; Qin et al, 2016), respectively. In contrast, the water in the fish tanks, both weaning- and grow-out tanks, were dominated by the bacterial taxa Polaribacter , Leucothrix , members of Flavobacteriaceae , Oleispira , Colwellia , Marinomonas , Pseudoalteromonas , Tenacibaculum , Vibrio , Mor- itella , Fluviicola , and Psychromonas ; where cultivated memb- ers are generally described as organoheterotrophic, aerobic or facultative anaerobic, psychrophilic or mesophilic micro- organisms with origin from marine environments (Yakimov et al, 2003; O’Sullivan et al, 2005; Urakawa, 2014; Bernardet, 2015; Bland and Brock, 2015; Bowman and McMeekin, 2015; Deming and Junge, 2015; Farmer et al, 2015; Sanchez-Amat and Solano, 2015; Staley, 2015; Suzuki, 2015; The Editorial Board, 2015; Dahal and Kim, 2018). The differences in microbial community structures between intake water and fish tank water were probably due to effective UV treatment of the water that greatly reduced the bacterial load, followed by microbial succession in the fish tanks.…”

Section: Discussionmentioning

confidence: 99%

Microbial Communities in a Flow-Through Fish Farm for Lumpfish (Cyclopterus lumpus L.) During Healthy Rearing Conditions

et al. 2019

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Lumpfish can efficiently remove sea lice from Atlantic salmon in net-pens, and production of lumpfish in closed fish farms is a new, fast developing industry in Norway. However, periodic outbreaks of bacterial diseases in the fish farms represent a large problem, both economically and ethically. Therefore it is important to obtain a better understanding of how microbial communities develop in these production facilities. Knowledge on the characteristics of microbial communities associated with healthy fish could also enable detection of changes associated with disease outbreaks at an early stage. In this study we have monitored microbial communities in a fish farm for lumpfish during normal operational conditions with no disease outbreak by using 16S rRNA gene amplicon sequencing. The study involved weekly samplings of water and biofilms from fish tanks, and fish. The results revealed that the microbial communities in fish tank water were different from the intake water. The water and biofilm in fish tanks were highly similar in regards to microbial community members, but with large differences in relative abundances for some taxa. The sampled fish were associated with mostly the same taxa as in tank water and biofilm, but more variation in relative abundances of different taxonomic groups occurred. The microbial communities in the fish farm seemed stable over time, and were dominated by marine bacteria and archaea within Alphaproteobacteria , Epsilonproteobacteria , Flavobacteria , Gammaproteobacteria , Thaumarchaeota , Planctomycetes , Sphingobacteriia , and Verrucomicrobiae (>10% relative abundance). Bacterial genera known to include fish-pathogenic strains were detected in all types of sample materials, but with low relative abundances (<5%). Exceptions were some samples of fish, biofilm and water with high relative abundance of Tenacibaculum (<85.8%) and Moritella (<82%). In addition, some of the eggs had a high relative abundance of Tenacibaculum (<89.5%). Overall, this study shows that a stable microbial community dominated by various genera of non-pathogenic bacteria is associated with a healthy environment for rearing lumpfish. Taxa with pathogenic members were also part of the microbial communities during healthy conditions, but the stable non-pathogenic bacteria may limit their growth and thereby prevent disease outbreaks.

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Flavobacteriaceae

Cited by 17 publications

References 155 publications

A case study of biofilter activation and microbial nitrification in a marine recirculation aquaculture system for rearing Atlantic salmon (Salmo salarL.)

A case study of biofilter activation and microbial nitrification in a marine recirculation aquaculture system for rearing Atlantic salmon (Salmo salarL.)

Luteirhabdus pelagi gen. nov., sp. nov., a novel member of the family Flavobacteriaceae, isolated from the West Pacific Ocean

Microbial Communities in a Flow-Through Fish Farm for Lumpfish (Cyclopterus lumpus L.) During Healthy Rearing Conditions

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