Publications by authors named "Su-Chen Ma"

2 Publications

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sp. nov., isolated from a deep well with oil reservoir water.

Int J Syst Evol Microbiol 2020 Jul;70(7):4339-4344

Key Laboratory of Soil Microbiology, Ministry of Agriculture, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China.

A Gram-stain-negative, rod-shaped bacterium, designated XJ4, was isolated from oil-contaminated water, collected from Xinjiang Province, north-west PR China (45° 1' 27″ N, 85° 6' 14″ E). Growth occurred at 20-45 °C (optimum, 30 °C) and pH 6.0-10.0 (optimum, pH 6.0-7.0). Strain XJ4 could tolerate up to 7 % (w/v) NaCl and grow optimally in the absence of NaCl. Phylogenetic analysis based on comparative sequence analysis of 16S rRNA gene sequences indicated that strain XJ4 belonged to the genus , and that was closely related to cai42 (97.2 %), SP32 (97.0 %) and JA296 (97.0 %). The average nucleotide identity values between XJ4 and three type strains were 77.9, 77.6 and 71.9 %, respectively. The DNA G+C content of strain XJ4 was 69.5 mol%. The sole respiratory quinone was Q-10. The major cellular fatty acid was summed feature 8 (Cω7 and/or Cω6), C and 11-methyl Cω7. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, unidentified phospholipids, an unidentified aminolipid and unidentified lipids. On the basis of phenotypic, chemotaxonomic and phylogenetic analyses, strain XJ4 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is XJ4 (=CGMCC 1.13778=LMG 30952).
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http://dx.doi.org/10.1099/ijsem.0.004294DOI Listing
July 2020

sp. nov., isolated from a deep well with oil reservoir water.

Int J Syst Evol Microbiol 2020 Apr 10;70(4):2312-2317. Epub 2020 Feb 10.

Key Laboratory of Soil Microbiology, Ministry of Agriculture, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China.

A Gram-stain-negative, non-motile and ovoid bacterial strain, designated 4-2, was isolated from oil-contaminated water which was collected from Xinjiang Province, north-west PR China. The 16S rRNA gene sequence analysis showed that strain 4-2 belonged to the genus . The species with highest similarity to strain 4-2 was YIM 90738 (97.83 %), followed by '' M26 (97.83 %) and SYSUP0003 (97.25 %). The average nucleotide identity values between 4-2 and three type strains were 84.69, 77.88 and 74.07 %, respectively. The genomic DNA G+C content of strain 4-2 was 61.4 mol%. Chemotaxonomical characteristic results showed that the respiratory quinone was ubiquinone Q-10 and the major fatty acids were summed feature 8 (C7 or C6) and C cyclo 8. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, unidentified phospholipids, an unidentified aminolipid and an unidentified polar lipid. The predominant polyamines were putrescine, cadaverine and spermidine. On the basis of phenotypic, chemotaxonomic and phylogenetic inferences, strain 4-2 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 4-2 (=CGMCC 1.13669=LMG 30882).
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http://dx.doi.org/10.1099/ijsem.0.004036DOI Listing
April 2020