Changes in bacterial community composition along a solar radiation gradient in humic waters
It has been demonstrated that solar and particularly UV-radiation has strong effects on the production, activity and abundance of bacterioplankton, whereas effects on bacterial community composition (BCC) are unclear. We performed 3 independent experiments where humic water (either from a lake or a...
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| Veröffentlicht in: | Aquatic sciences 2006-12, Vol.68 (4), p.415-424 |
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| creator | LANGENHEDER, Silke SOBEK, Sebastian TRANVIK, Lars J |
| description | It has been demonstrated that solar and particularly UV-radiation has strong effects on the production, activity and abundance of bacterioplankton, whereas effects on bacterial community composition (BCC) are unclear. We performed 3 independent experiments where humic water (either from a lake or a swamp) was incubated at different depths to create a gradient of intensity of exposure to natural solar radiation. Bacterial community composition, as assessed by terminal restriction fragment length polymorphism analysis (t-RFLP), changed gradually with increasing depth in parallel to decreasing sunlight exposure. Vertical changes in the production of dissolved inorganic carbon, oxygen consumption and bacterial production coincided with changes in BCC, suggesting a relationship between bacterial community composition and function. |
| doi_str_mv | 10.1007/s00027-006-0849-y |
| format | Article |
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| ispartof | Aquatic sciences, 2006-12, Vol.68 (4), p.415-424 |
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| subjects | Animal and plant ecology Animal, plant and microbial ecology Bacteria Biological and medical sciences Community composition Dissolved inorganic carbon Fresh water ecosystems Freshwater Fundamental and applied biological sciences. Psychology Microbial ecology Microbiology Oxygen consumption Solar radiation Synecology Ultraviolet radiation Various environments (extraatmospheric space, air, water) |
| title | Changes in bacterial community composition along a solar radiation gradient in humic waters |
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