Trimethylsilyl (TMS) derivatives prepared from whole-cell hydrolysates of 36 strains, representing 10 species of Clostridium were examined by gas-liquid chromatography (GLC). The TMS profile of each species contained a group of peaks which characterized the species. Variation among strains within a species was much lower than variation between species. Some of the closely related clostridia could be differentiated by comparing their TMS profiles. Strains of Clostridium botulinum were distinguished from C. sporogenes on the basis of the ratio of two GLC peaks which corresponded to arabinose and glucose. A peak with a retention time identical to that of mannose was present in all C. bifermentans strains but was absent in those of C. sordellii.
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http://dx.doi.org/10.1128/am.20.1.78-84.1970 | DOI Listing |
Curr Microbiol
January 2025
Department of Microbiology, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand.
An aerobic, Gram-stain-positive, motile, coccus-shaped actinomycete, designated strain LSe6-4, was isolated from leaves of sea purslane (Sesuvium portulacastrum L.) in Thailand and subjected to a polyphasic taxonomic studies. Growth of the strain occurred at temperatures between 15 and 38 °C, and with NaCl concentrations 0-13%.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
January 2025
Department of Microbiology, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand.
A novel strain DW16-2, isolated from duckweed (), was taxonomically studied in detail. The analysis based on its 16S rRNA gene sequence revealed that the strain was most closely related to Y8 (98.8%), followed by YIM 61452 (98.
View Article and Find Full Text PDFAntonie Van Leeuwenhoek
December 2024
GIPhy - Genome Informatics and Phylogenetics, Biological Resource Center of Institut Pasteur, Institut Pasteur, Université de Paris, 75015, Paris, France.
A Gram-staining-positive, aerobic bacterium, designated strain JJ-181, was isolated from the root surface of soybean. Based on the 16S rRNA gene sequence similarities, strain JJ-181 was grouped into the genus Cohnella, most closely related to Cohnella hashimotonis F6_2S_P_1 (98.85%) and C.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
November 2024
Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, PR China.
A bacterial strain designated HT6-4 was isolated from soil samples collected from the Flaming Mountain, Xinjiang, PR China. The purpose of this study was to describe a novel species and its characteristics, through genome sequencing and analysis of the relationship between the members of the genus , and explore the antiradiation, antioxidation and antibacterial capabilities of strain HT6-4. The polyphasic study confirmed the affiliation of strain HT6-4 with the genus .
View Article and Find Full Text PDFJ Antibiot (Tokyo)
January 2025
Department of Biotechnology, Faculty of Life and Environmental Sciences, University of Yamanashi, Kofu, Japan.
While screening for antibiotics in a marine sample, we discovered a berninamycin C-producing actinomycete, designated YSPA8, isolated from a sponge. A polyphasic approach was used to determine the taxonomic position of the strain. Strain YSPA8 formed sympodially branched aerial mycelia that ultimately segment into chains of spores.
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