Figure F13. Microphotograph showing bacterial cells from an upper sediment layer from a depth of 1.45 mbsf (interval 200-1224C-1H-4, 145150 cm). A. After staining with the DNA-binding fluorochrome SYBR Green I. B. Hybridization with the bacteria-specific, CY3-labeled probe EUB338. Note the numerous bacteria responding to the specific hybridization, indicating the high amount of metabolically active bacteria within the sediment.
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