Article Abstract:
Marine research has revealed that a wide range of largely unknown bacteria live in the sea. Whole-genome deoxyribonucleic acid hybridization techniques were applied to identify bacteria species after isolation on solid media. A significant proportion of the bacterioplankton isolated could grow in laboratory conditions. Many of them grow at different rates throughout the year and may be exhibiting seasonal growth. Partial 16S ribosomal ribonucleic acid gene sequence analysis was performed.
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Article Abstract:
The growth behavior of three marine bacterioplankton species was examined using the dilution-to-extinction technique, which isolates bacterial strains that are not able to grow and form colonies on conventional culture media. Results obtained indicate that the inability of some bacteria to form colonies on agar plate can be related to their behavior and the oligotrophic isolates could not form microcolonies and exhibited the dispersal of single cells.
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Article Abstract:
The culturability and coexistence of bacterioplankton with different life strategies in the Baltic Sea and Skagerrak Sea are examined. The two sea areas differ in their levels of bacterial production which suggest that variation in the relative abundance of colony-forming versus non-colony forming bacteria are linked to environmental characteristics.
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