Characteristic of bacterial communities associated with mollusc biodeposits
Quantitative and qualitative composition of the bacterioflora of biosediments produced by mussels and oysters were studied in the southern Kerch Strait, area of potential experimental and commercial culture of molluscs. Sampling was made from May to October 1993. A total of 45 various groups of microorganisms were determined and 50 pure bacterial cultures were isolated. On the basis of research into morphological, tinctorial, cultural and physiological and biochemical properties of the isolated strains, they were identified to species or genus level. Of 22 isolated strains of the enteric bacilli group, Escherichia coli accounted for 9.1%, Enterobacter agglomerans, 50%, Citrobacter freundii, 27.3%, C. diversus, 9.1%, C. amalonaticus 4.5%. Among enterococci, mainly Enterococcus faecium were determined, E. faecalis accounting for from 8 to 25% of the enterococci group. Bacteria of the genera Aeromonas, Pseudomonas, Bacillus, Vibrio, and a proteolytic biovariety of enterococcus were most active hydrolase producers. Among aerobic bacteria, Bacillus cereus were identified; anaerobic bacteria were represented mainly by Clostridium perfringens.
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| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
1994
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| Subjects: | Taxonomy, Bacterioflora, Microorganisms, Biological sedimentation, Enterobacter agglomerans, Citrobacter freundii, Escherichia соli, Bacillus cereus, Biotechnologies, Таксономия, Микроорганизмы, Биоотложения, Анаэробные бактерии, Энтерококки, Биотехника, |
| Online Access: | http://hdl.handle.net/1834/15827 |
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| Summary: | Quantitative and qualitative composition of the bacterioflora of biosediments produced by mussels and oysters were studied in the southern Kerch Strait, area of potential experimental and commercial culture of molluscs. Sampling was made from May to October 1993. A total of 45 various groups of microorganisms were determined and 50 pure bacterial cultures were isolated. On the basis of research into morphological, tinctorial, cultural and physiological and biochemical properties of the isolated strains, they were identified to species or genus level. Of 22 isolated strains of the enteric bacilli group, Escherichia coli accounted for 9.1%, Enterobacter agglomerans, 50%, Citrobacter freundii, 27.3%, C. diversus, 9.1%, C. amalonaticus 4.5%. Among enterococci, mainly Enterococcus faecium were determined, E. faecalis accounting for from 8 to 25% of the enterococci group. Bacteria of the genera Aeromonas, Pseudomonas, Bacillus, Vibrio, and a proteolytic biovariety of enterococcus were most active hydrolase producers. Among aerobic bacteria, Bacillus cereus were identified; anaerobic bacteria were represented mainly by Clostridium perfringens. |
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