Aliagarivorans marinus gen. nov., sp. nov. and Aliagarivorans taiwanensis sp. nov., facultatively anaerobic marine bacteria capable of agar degradation

Jean, Wen Dar; Huang, Shih-Hsu; Liu, Tung Yen; Chen, Jwo-Sheng; Shieh, Wung Yang

doi:10.1099/ijs.0.008235-0

Cited by 25 publications

(8 citation statements)

References 28 publications

(39 reference statements)

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“…For TSASRA084 a hit with 94% sequence similarity was found. The last is a recently discovered genus ( Jean et al, 2009 ). With the “ Theonella ” query, five OTUs had hits with >97% sequence similarity.…”

Section: Resultsmentioning

confidence: 99%

Culturable associated-bacteria of the sponge Theonella swinhoei show tolerance to high arsenic concentrations

et al. 2015

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Sponges are potent filter feeders and as such are exposed to high fluxes of toxic trace elements, which can accumulate in their body over time. Such is the case of the Red Sea sponge Theonella swinhoei, which has been shown to accumulate up to 8500 mg/Kg of the highly toxicelement arsenic. T. swinhoei is known to harbor a multitude of sponge-associated bacteria, so it is hypothesized that the associated-bacteria will be tolerant to high arsenic concentration. This study also investigates the fate of the arsenic accumulated in the sponge to test if the associated-bacteria have an important role in the arsenic accumulation process of their host, since bacteria are key players in the natural arsenic cycle. Separation of the sponge to sponge cells and bacteria enriched fractions showed that arsenic is accumulated by the bacteria. Sponge-associated, arsenic-tolerant bacteria were cultured in the presence of 5 mM of either arsenate or arsenite (equivalent to 6150 mg/Kg arsenic, dry weight). The 54 isolated bacteria were grouped to 15 operational taxonomic units (OTUs) and isolates belonging to 12 OTUs were assessed for tolerance to arsenate at increased concentrations up to 100 mM. Eight of the 12 OTUs tolerated an order of magnitude increase in the concentration of arsenate, and some exhibited external biomineralization of arsenic–magnesium salts. The biomineralization of this unique mineral was directly observed in bacteria for the first time. These results may provide an explanation for the ability of the sponge to accumulate considerable amounts of arsenic. Furthermore arsenic-mineralizing bacteria can potentially be used for the study of bioremediation, as arsenic toxicity affects millions of people worldwide.

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Section: Resultsmentioning

confidence: 99%

Culturable associated-bacteria of the sponge Theonella swinhoei show tolerance to high arsenic concentrations

et al. 2015

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“…The family Alteromonadaceae within the Gammaproteobacteria is morphologically, metabolically and ecologically a diverse group of organisms and was first established by Ivanova and Mikhailov [1]. At the time of writing, the family consists of 24 genera with validly published names (www.bacterio.net) including Aestuariibacter [2], Agaribacter [3], Agarivorans [4], Aliagarivorans [5], Aliiglaciecola [6], Alishewanella [7], Alteromonas [1, 8], Bowmanella [9], Catenovulum [10], Glaciecola [11], Haliea [12], Mangrovitalea [13], Marinimicrobium [14], Marinobacter [15], Marinobacterium [16], Marisediminitalea [17], Melitea [18], Microbulbifer [16], Paraglaciecola [19], Planctobacterium [20], Pseudobowmanella [21], Saccharophagus [22], Salinimonas [23] and Tamiln...…”

Section: Full-textmentioning

confidence: 99%

Ningiella ruwaisensis gen. nov., sp. nov., a member of the family Alteromonadaceae isolated from marine water of the Arabian Gulf

Fotedar

Caldwell

Sankaranarayanan

et al. 2020

International Journal of Systematic and Evolutionary Microbiology

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Strain B66T was isolated from a marine water sample collected at Al Ruwais, located on the northern tip of Qatar. Cells were Gram-stain-negative, strictly aerobic and short- rod-shaped with a polar flagellum. The isolate was able to grow at 15–45 °C (optimum, 30 °C), at pH 5–11 (optimum, pH 6.5–8) and with 0–6 % NaCl. 16S rRNA gene sequence analysis revealed that strain B66T was affiliated with the family Alteromonadaceae , sharing the highest sequence similarities to the genera Alteromonas (93.7–95.4 %), Aestuariibacter (94.0–95.1 %), Agaribacter (93.3–93.7 %), Glaciecola (92.0–93.7 %), Marisendiminitalea (93.2–93.3 %) and Planctobacterium (92.9 %). In the phylogenetic trees, strain B66T demonstrated the novel organism formed a distinct lineage closely associated with Aestuariibacter and Planctobacterium . Major fatty acids were C16 : 0, summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c/iso-C15 : 0 2-OH and iso-C15 : 0 3-OH. The major respiratory quinone was ubiquinone-8 and the major polar lipids are phosphatidylglycerol and phosphatidylethanolamine. The DNA G+C content derived from the genome was 43.2 mol%. Based on the phenotypic, chemotaxonomic, phylogenetic and genomic data, strain B66T is considered to represent a novel species and genus for which the name Ningiella ruwaisensis gen. nov., sp. nov., is proposed. The type strain is B66T (=QCC B003/17T=LMG 30288 T=CCUG 70703T).

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“…The family Alteromonadaceae currently comprises sixteen genera: Aestuariibacter (Yi et al , 2004), Agarivorans (Kurahashi & Yokota, 2004), Aliagarivorans (Jean et al , 2009), Alishewanella (Vogel et al , 2000), Alteromonas (Baumann et al , 1972), Bowmanella (Jean et al , 2006), Catenovulum (Yan et al , 2011), Glaciecola (Bowman et al , 1998), Haliea (Urios et al , 2008b), Marinimicrobium (Lim et al , 2006), Marinobacter (Gauthier et al , 1992), Marinobacterium (González et al , 1997), Melitea (Urios et al , 2008a), Microbulbifer (González et al , 1997), Saccharophagus (Ekborg et al , 2005) and Salinimonas (Jeon et al , 2005). The group initially consisted of marine, heterotrophic, Gram-staining-negative, bacteria with one polar flagellum, requiring sodium chloride for their growth (Bowman & McMeekin, 2005).…”

mentioning

confidence: 99%

Tamilnaduibacter salinus gen. nov., sp. nov., a halotolerant gammaproteobacterium within the family Alteromonadaceae, isolated from a salt pan in Tamilnadu, India

Verma

Mual

Mayilraj

et al. 2015

International Journal of Systematic and Evolutionary Microbiology

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Two novel Gram-stain-negative, slow-growing, halotolerant strains with rod-shaped cells, designated as strains Mi-7 T and Mi-8, which formed pinpoint colonies on halophilic media were isolated during a study into the microbial diversity of a salt pan in the state of Tamilnadu, India. Both the strains had an obligate requirement for 1 % (w/v) NaCl for growth and were halotolerant, growing at NaCl concentrations of up to 20 % (w/v) in media. The strains, however, showed an inability to utilize the majority of substrates tested as sole carbon sources for growth and in fermentation reactions. Molecular phylogenetic analyses, based on 16S rRNA gene sequence revealed their closest phylogenetic neighbours to be members of the genus Marinobacter, with whom they showed the highest sequence similarity of 93.6 % and even less with the type strain of the type species, Marinobacter hydrocarbonoclasticus DSM 8798 T (91.1 %). Similarities with other genera within the family Alteromonadaceae were below 91.0 %. However, the two strains were very closely related to each other with 99.9 % sequence similarity, and DNA-DNA hybridization analyses confirmed their placement in the same species. The DNA G+C content of both strains was 65 mol%. Using the polyphasic taxonomic data obtained from this study, strains Mi-7 T and Mi-8 represent two strains of the same species of a novel genus for which the name Tamilnaduibacter salinus gen. nov., sp. nov., is proposed; the type strain of the novel species is Mi-7 T (5MTCC 12009 T 5DSM 28688 T).

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Aliagarivorans marinus gen. nov., sp. nov. and Aliagarivorans taiwanensis sp. nov., facultatively anaerobic marine bacteria capable of agar degradation

Cited by 25 publications

References 28 publications

Culturable associated-bacteria of the sponge Theonella swinhoei show tolerance to high arsenic concentrations

Culturable associated-bacteria of the sponge Theonella swinhoei show tolerance to high arsenic concentrations

Ningiella ruwaisensis gen. nov., sp. nov., a member of the family Alteromonadaceae isolated from marine water of the Arabian Gulf

Tamilnaduibacter salinus gen. nov., sp. nov., a halotolerant gammaproteobacterium within the family Alteromonadaceae, isolated from a salt pan in Tamilnadu, India

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