Parvularcula flava sp. nov., an alphaproteobacterium isolated from surface seawater of the South China Sea

Zhang, Xin-Qi; Wu, Yue‐Hong; Zhou, Xiang; Zhang, Xin; Xu, Xue-Wei; Wu, Min

doi:10.1099/ijsem.0.001225

Cited by 29 publications

(15 citation statements)

References 14 publications

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“…The only respiratory quinone was Q-10 (100 %). Although similar fatty acid profiles were observed for strains of species belonging to the genus Parvularcula, in which C 18 : 1 ω7c and C 16 : 0 are the major fatty acids [2,3], the profile differs from its closest relative in the proportions of these latter fatty acids, the fatty acid cyclo-C 19 : 0 ω8c was not detected in strain ZS-1/3 T but was present in P. lutaonensis (Table 3). This finding also confirms that strain ZS-1/3 T differs at the species level from other members of the genus Parvularcula.…”

Section: Physiology and Chemotaxonomysupporting

confidence: 68%

Parvularcula mediterranea sp. nov., isolated from marine plastic debris from Zakynthos Island, Greece

Al-Omari

Szabó

Szerdahelyi

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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A Gram-negative, dark orange-pigmented, aerobic, non-spore-forming, coccoid-shaped bacterium designated as ZS-1/3T was isolated from a floating plastic litter (polypropylene straw) sample, collected from shallow seawater near the public beach of Laganas on Zakynthos island, Greece. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate is affiliated with the genus Parvularcula in the family Parvularculaceae . Its closest relatives are Parvularcula lutaonensis (98.09 %) and Parvularcula oceanus (95.89 %). The pH and temperature ranges for growth are pH 5–10 and 20–38 °C (optima, pH 7.0 and 28 °C). The predominant fatty acids are C18 : 1 ω7c (56.84 %), C16 : 0 (27.51 %), C18 : 0 (2.25 %) and C12 : 0 (1.42 %). The predominant respiratory quinone detected in strain ZS-1/3T is quinone-10 (Q10); the majority of detected polar lipids are glycolipid. The DNA G+C content is 62.5 mol%. Physiological and chemotaxonomic data further confirmed the distinctiveness of strain ZS-1/3T from other members of the genus Parvularcula . Thus, strain ZS-1/3T is considered to represent a novel species of the genus, for which the name Parvularcula mediterranea. sp. nov. is proposed. The type strain is ZS-1/3T (=NCAIM B 02654T=CCM 9032T).

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Section: Physiology and Chemotaxonomysupporting

confidence: 68%

Parvularcula mediterranea sp. nov., isolated from marine plastic debris from Zakynthos Island, Greece

Al-Omari

Szabó

Szerdahelyi

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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“…Unless stated otherwise, the following physiological and biochemical tests were performed in MB or MA at 30 °C. Gram-staining was tested as described previously [36]. Catalase activity was determined by bubble production in hydrogen peroxide solution (3.0 %, v/v).…”

Section: Methodsmentioning

confidence: 99%

“…Gram-staining was tested as described previously [36]. Catalase activity was determined by bubble production in hydrogen peroxide solution (3.0 %, v/v).…”

Section: Phenotypic Determinationsmentioning

confidence: 99%

Euzebya pacifica sp. nov., a novel member of the class Nitriliruptoria

Jian

Meng

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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A Gram-stain-positive, aerobic, chemo-organotrophic, rod-shaped, non-spore-forming strain, which produced convex, circular, pink-pigmented colonies, designated as DY32-46T, was isolated from seawater collected from the Pacific Ocean. DY32-46T was found to grow at 20–40 °C (optimum, 30–35 °C), pH 6.0–8.0 (optimum, pH 6.5) and with 0–5 % (w/v) NaCl (optimum, 1–2 %). The results of chemotaxonomic analysis indicated that the respiratory quinone of DY32-46T was MK-9(H4), and major fatty acids (>10 %) were C17 : 1 ω8c, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C16 : 0 and C15 : 1 ω6c. The polar lipids included diphosphatidylglycerol, phosphatidylglycerol, one unidentified aminophospholipid, three unidentified glycolipids, three unidentified phospholipids, one unidentified phosphoglycolipid and five unidentified lipids. The DNA G+C content of DY32-46T was 70.6 mol%. The results of phylogenetic analysis based on 16S rRNA gene sequences and genomic data indicated that DY32-46T should be assigned to the genus Euzebya . ANI and in silico DNA–DNA hybridization values between strain DY32-46T and type strains of Euzebya species were 73.1–87.2 % and 20.2–32.4 %, respectively. Different phenotypic properties, together with genetic distinctiveness, demonstrated that strain DY32-46T was clearly distinct from recognized species of the genus Euzebya . Therefore, DY32-46T represents a novel species within the genus Euzebya , for which the name Euzebya pacifica sp. nov is proposed. The type strain is DY32-46T (=MCCC 1K03476T=KCTC 49091T).

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“… Parvularcula flava , a novel species of genus Parvularcula , was proposed by Zhang et al and the type strain P. flava NH6-79 T was isolated from surface seawater of the South China Sea [1]. At the same time as the establishment of Parvularcula flava , a novel genus Aquisalinus was proposed by Zhong et al in 2016 [2].…”

Section: Full-textmentioning

confidence: 99%

“…Differential characteristics among strain P. flava NH6-79 T and type species of genera Aquisalinus and Parvularcula Strains: 1, P. flava NH6-79 T[1]; 2, A. flavus D11M-2 T [2]; 3, P. bermudensis HTCC2503 T[12]; 4, P. marina SM1705 T[13]. All strains are positive for alkaline phosphatase, esterase (C4), esterase lipase (C8), leucine arylamidase, acid phosphatase, naphthol-AS-BI-phosphohydrolase and hydrolysis of gelatin.…”

mentioning

confidence: 99%

Reclassification of Parvularcula flava as Aquisalinus luteolus nom. nov. and emended description of the genus Aquisalinus

Ying

Fang

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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Parvularcula flava was proposed as a novel member of genus Parvularcula in 2016. Some time earlier, Aquisalinus flavus has been proposed as a novel species of a novel genus named Aquisalinus . When comparing the 16S rRNA gene sequences of type strains P. flava NH6-79T and A. flavus D11M-2T, they showed 97.9 % sequence identity, much higher than the sequence identities 92.7–94.3 % between P. flava NH6-79T and type strains in the genus Parvularcula , indicating that the later proposed novel taxon Parvularcula flava need reclassification. The phylogenetic trees based on 16S rRNA gene sequences and genome sequences both showed that P. flava NH6-79T and A. flavus D11M-2T formed a separated branch away from strains in the genera Parvularcula , Marinicaulis and Amphiplicatus . The average amino acid identity and average nucleotide identity values of P. flava NH6-79T and A. flavus D11M-2T were 87.9 and 85.0 %, respectively, much higher than the values between P. flava NH6-79T and other closely related type strains (54.3 %–58.1 % and 68.6–70.4 %, respectively). P. flava NH6-79T and A. flavus D11M-2T also contained summed feature 8 (C18 : 1 ω6c and/or C18 : 1 ω7c) and C16 : 0 as major fatty acids, distinguishing them from other closely related taxa. Based on the results of the phylogenetic, comparative genomic and phenotypic analyses, Parvularcula flava should be reclassified as Aquisalinus luteolus nom. nov. and the description of genus Aquisalinus is emended.

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Parvularcula flava sp. nov., an alphaproteobacterium isolated from surface seawater of the South China Sea

Abstract: Parvularcula flava sp. nov., an alphaproteobacterium isolated from surface seawater of the South China Sea

Cited by 29 publications

References 14 publications

Parvularcula mediterranea sp. nov., isolated from marine plastic debris from Zakynthos Island, Greece

Parvularcula mediterranea sp. nov., isolated from marine plastic debris from Zakynthos Island, Greece

Euzebya pacifica sp. nov., a novel member of the class Nitriliruptoria

Reclassification of Parvularcula flava as Aquisalinus luteolus nom. nov. and emended description of the genus Aquisalinus

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