期刊
MICROBIOLOGY
卷 78, 期 3, 页码 369-375出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0026261709030163
关键词
heterotrophic bacteria; cell numbers; dynamics; associations; hydrobionts
类别
The annual changes in bacterial numbers and diversity of the heterotrophic microflora in invertebrates and ambient water were studied. During the whole period of observation, bacterial cell numbers were higher in invertebrate specimens than in the ambient water. The highest number of bacterial cells was detected in trepangs and sea urchins, while the lowest number of cells was detected in starfish. Based on the results of phenotypic analysis and analysis of fatty acid composition of bacterial cell lipids, 487 strains (out of the total of 502 isolates) of heterotrophic bacteria were identified to the genus level. Morphological differences between the winter and summer isolates of vibrios and halomonads were analyzed. The seasonal dynamics of the cell numbers of vibrios and halomonads was revealed. The gram-positive microflora was most often present in animals during the winter, fall, and spring periods. The diversity of heterotrophic bacteria was greater in the water column than in animal tissues.
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