Filters: Tags: oxygen (X) > Types: Journal Citation (X)
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In order to assess the role of cyanobacteria in the formation and dynamics of microenvironments in microbial mats, we studied an experimental biofilm of a benthic, halotolerant strain, belonging to the Halothece cluster of cyanobacteria. The 12-week-old biofilm developed in a sand core incubated in a benthic gradient chamber under opposing oxygen and sulfide vertical concentration gradients. At the biofilm surface, and as a response to high light irradiances, specific accumulation of myxoxanthophyll was detected in the cells, consistent with the typical vertical distribution of sun versus shade species in nature. The oxygen turn-over in terms of gross photosynthesis and net productivity rates was comparable to oxygen...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Cyanobacterium,
FEMS Microbiology Ecology,
Microenvironment,
Microsensor,
Oxygen,
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