Sphingomicrobium arenosum sp. nov., isolated from marine sediment.

Int J Syst Evol Microbiol 2018 Aug 22;68(8):2551-2556. Epub 2018 Jun 22.

1​Department of Microbiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea.

A Gram-stain-negative, strictly aerobic, motile by one single flagellum, dark-orange pigmented and rod-shaped bacterial strain, designated CAU 1457, was isolated from marine sediment in the Republic of Korea and its taxonomic position was investigated by using a polyphasic approach. The isolate grew optimally at 30 °C, at pH 6.0 and in the presence of 2 % (w/v) NaCl. Based on 16S rRNA gene sequences similarity, strain CAU 1457 belonged to the genus Sphingomicrobium and was related most closely to Sphingomicrobium astaxanthinifaciens JCM 18551 (98.2 % similarity). Strain CAU 1457 contained ubiquinone-10 as the predominant isoprenoid quinone and 11-methyl C18 : 1ω7c and summed feature 8 (C18 : 1ω7c/ω6c) as the major cellular fatty acids. Triamine sym-homospermidine was detected as the major compound in the polyamine pattern. The polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, sphingoglycolipid, four unidentified glycolipids, one unidentified aminophospholipid, two unidentified phospholipids, one unidentified aminolipid and one unidentified lipid. DNA-DNA relatedness between strain CAU 1457 and the closely related strains, Sphingomicrobium astaxanthinifaciens JCM 18551 and Sphingomicrobium aestuariivivum KCTC 42286 were 32.7 and 28.4 %, respectively. The DNA G+C content of strain was 68.8 mol%. The phenotypic, chemotaxonomic and phylogenetic data indicated that strain CAU 1457 represents a novel species of the genus Sphingomicrobium, for which the name Sphingomicrobium arenosum sp. nov. is proposed. The type strain is CAU 1457 (=KCTC 62233=NBRC 113094).

Download full-text PDF

Source
http://dx.doi.org/10.1099/ijsem.0.002875DOI Listing
August 2018
Get 20% Off Journals at LWW.com

Similar Publications

Sphingomicrobium arenosum sp. nov., isolated from marine sediment.

Int J Syst Evol Microbiol 2018 Aug 22;68(8):2551-2556. Epub 2018 Jun 22.

1​Department of Microbiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea.

A Gram-stain-negative, strictly aerobic, motile by one single flagellum, dark-orange pigmented and rod-shaped bacterial strain, designated CAU 1457, was isolated from marine sediment in the Republic of Korea and its taxonomic position was investigated by using a polyphasic approach. The isolate grew optimally at 30 °C, at pH 6.0 and in the presence of 2 % (w/v) NaCl. Read More

View Article and Full-Text PDF

Bioactive Triterpenes from the Root of Salvia miltiorrhiza Bunge.

Phytother Res 2017 Sep 2;31(9):1457-1460. Epub 2017 Aug 2.

Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki, 859-3298, Japan.

Danshen (Salvia miltiorrhiza) is a well-known medicinal herb in the oriental medicine. The current study on bioactive triterpenoid in the root of S. miltiorrhiza led to the isolation of a new highly hydroxylated ursane-type triterpene, urs-12-ene-2α,3β,7β,16α-tetraol (1) and five known ones including 2β-hydroxypomolic acid (2), maslinic acid (3), asiatic acid (4), ursolic acid (5), and oleanolic acid (6). Read More

View Article and Full-Text PDF
September 2017

Coupling of multi-walled carbon nanotubes/polydimethylsiloxane coated stir bar sorptive extraction with pulse glow discharge-ion mobility spectrometry for analysis of triazine herbicides in water and soil samples.

J Chromatogr A 2016 Jul 16;1457:14-21. Epub 2016 Jun 16.

Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China. Electronic address:

An analytical method based on stir bar sorptive extraction (SBSE) coupled with pulse glow discharge-ion mobility spectrometry (PGD-IMS) was developed for analysis of three triazine pesticide residues in water and soil samples. An injection port with sealing device and stir bars hold device were designed and constructed to directly position the SBSE fiber including the extracted samples into the heating device, making desorption and detection of analytes proceeded simultaneously. The extraction conditions such as SBSE solid phase material, extraction time, extraction temperature, pH value and salt concentration were optimized. Read More

View Article and Full-Text PDF

Comparison of assisted reproductive technology utilization and outcomes between Caucasian and African American patients in an equal-access-to-care setting.

Fertil Steril 2006 Apr 9;85(4):888-94. Epub 2006 Mar 9.

Reproductive Biology and Medicine Branch, National Institute of Child Health and Human Development, NIH, Bethesda, Maryland 20892, USA.

Objective: Racial disparity in assisted reproductive technology (ART) outcomes has been reported but remains controversial. Reasons for the disparity are unclear, and access to care has been suggested as a causative factor. In this study, we sought to examine minority utilization of ART in the Department of Defense (DoD) compared with minority utilization in the U. Read More

View Article and Full-Text PDF