Carboxylicivirga flava sp. nov., isolated from marine surface sediment

Wang, Hui; Qi, Cancan; Chen, Weiwei; Dong, Wenwen; Tang, Hua; Hu, Xiaoke

doi:10.1099/ijsem.0.001533

Cited by 12 publications

(2 citation statements)

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“…The respective bacterial communities of the massive sulfide block R1 (VF 1) and chimney sample R4 (VF 2) showed similar patterns both on the order level and when considering only the 10 most abundant genera with large proportions of Campilobacterota ( Supplementary Figure S1A and Table 4 ), exceeding the relative campylobacterotal abundances previously observed for massive sulfides of the CIR and SEIR ( Han et al, 2018 ). The highest genera-based abundances were observed for the typically vent-associated, chemoautotrophic, sulfur and hydrogen-oxidizing Sulfurovum genus ( Inagaki et al, 2004 ; Mino et al, 2014 ) and the heterotrophic, typically sediment-inhabiting Carboxylicivirga genus (e.g., Wang et al, 2016 ; Table 4 ). The archaeal communities of R1 and R4 also showed the highest diversities among all analyzed samples with large proportions of Woesearchaeales ( Supplementary Figure S1B ).…”

Section: Resultsmentioning

confidence: 99%

Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge

Adam-Beyer,

Laufer-Meiser,

Fuchs

et al. 2023

Front. Microbiol.

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In order to expand the knowledge of microbial ecosystems from deep-sea hydrothermal vent systems located on the Central and South-East Indian Ridge, we sampled hydrothermal fluids, massive sulfides, ambient water and sediments of six distinct vent fields. Most of these vent sites were only recently discovered in the course of the German exploration program for massive sulfide deposits and no previous studies of the respective microbial communities exist. Apart from typically vent-associated chemosynthetic members of the orders Campylobacterales, Mariprofundales, and Thiomicrospirales, high numbers of uncultured and unspecified Bacteria were identified via 16S rRNA gene analyses in hydrothermal fluid and massive sulfide samples. The sampled sediments however, were characterized by an overall lack of chemosynthetic Bacteria and the presence of high proportions of low abundant bacterial groups. The archaeal communities were generally less diverse and mostly dominated by members of Nitrosopumilales and Woesearchaeales, partly exhibiting high proportions of unassigned Archaea. Correlations with environmental parameters were primarily observed for sediment communities and for microbial species (associated with the nitrogen cycle) in samples from a recently identified vent field, which was geochemically distinct from all other sampled sites. Enrichment cultures of diffuse fluids demonstrated a great potential for hydrogen oxidation coupled to the reduction of various electron-acceptors with high abundances of Hydrogenovibrio and Sulfurimonas species. Overall, given the large number of currently uncultured and unspecified microorganisms identified in the vent communities, their respective metabolic traits, ecosystem functions and mediated biogeochemical processes have still to be resolved for estimating consequences of potential environmental disturbances by future mining activities.

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Section: Resultsmentioning

confidence: 99%

Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge

Adam-Beyer,

Laufer-Meiser,

Fuchs

et al. 2023

Front. Microbiol.

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“…Interestingly, these five species were all isolated from marine environments. Cells are strictly aerobic or facultatively anaerobic, NaCl is required for active growth (optimum 2.0-3.0%) (Yang et al, 2014;Wang et al, 2016). And Carboxylicivirga probably consumed carbohydrate, protein and organic acids in sludge for growth (Cai et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Response of intestinal microbiota to saline-alkaline water in mud crab (Scylla paramamosain) based on multiple low salinity culture modes

Niu

Li²,

Chen

et al. 2023

Front. Mar. Sci.

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IntroductionThe intestinal microbiota acts as an additional “organ” that performs a variety of fu\nctions for the host’s health. However, the composition and role of the intestinal microbiota in Scylla paramamosain cultivated in inland low salinity saline-alkaline water are unknown.MethodsAccordingly, from the perspective of practical production, we explored the intestinal microbiota communities and the critical bacteria of S. paramamosain in normal salinity seawater (NS), coastal low salinity seawater (CS), acute low salinity seawater (AS) and inland low salinity saline-alkaline water (IS).ResultsResults showed that there were significant differences in the diversity composition of intestinal microbiota and the relative abundance of dominant taxa in each group of cultured crabs. Firmicutes, Proteobacteria, Bacteroidota and Campilobacterota were shown to be the major phyla shared by the four groups, with Bacteroidota having the highest relative abundance (27.10%) in the inland low salinity saline-alkaline water group (IS). Fusobacteriota had the highest proportion in IS group compared with other low salinity groups. A total of 284 indicator bacteria were identified, belonging to eight phyla, and their relative abundances were varied significantly (P < 0.05). Genus Carboxylicivirga, as the indicator bacterium of the IS group, may play a critical role in the adaptation of crab to saline-alkaline water environment. Moreover, salinity may exert considerable selective pressure on the entire microbial community.DiscussionThese findings revealed the features of the intestinal microbiome in S. paramamosain in multiple low salinity patterns, and provided candidate probiotics and basic information for crab farming in saline-alkaline water, which was conducive to the development and perfection of mud crab culturing technology in inland low salinity saline-alkaline water.

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Labilibacter

Lü

2021

Bergey's Manual of Systematics of Archaea and Bacteria

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La.bi.li.bac'ter. L. masc. adj. labilis , gliding; N.L. masc. n. bacter , rod; N.L. masc. n. Labilibacter , gliding rod. Bacteroidetes / Bacteroidia / Bacteroidales / Marinilabiliaceae / Labilibacter Labilibacter is a genus within the family Marinilabiliaceae , order Bacteroidales , class Bacteroidia , and phylum Bacteroidetes . It currently includes three species – Labilibacter sediminis , Labilibacter aurantiacus , and Labilibacter marinus – isolated from marine sediment or sea squirts ( Styela clava ). Colonies of Labilibacter are circular and yellow or orange. The three species of the genus show different features, including the ability to hydrolyze gelatin, starch and produce indole and valine arylamidase. The major fatty acids are iso‐C 15:0 and anteiso‐C 15:0 . The major respiratory quinone is MK‐7. The polar lipid profile of the genus contains unidentified lipid, phospholipid, aminophospholipid, phosphatidylethanolamine, and aminolipid. The size of the genome is between 5.88 and 6.37 Mb. 16S rRNA gene sequence analysis indicated that the closest phylogenetic relatives of the genus Labilibacter are members of the genera Saccharicinis and Carboxylicivirga . DNA G + C content (mol%) : 35.1–35.9 (genome), 35.1–36.1 (HPLC). Type species : Labilibacter aurantiacus Lu et al. 2017 VP .

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Carboxylicivirga flava sp. nov., isolated from marine surface sediment

Cited by 12 publications

References 20 publications

Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge

Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge

Response of intestinal microbiota to saline-alkaline water in mud crab (Scylla paramamosain) based on multiple low salinity culture modes

Labilibacter

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