Structure and function of natural sulphide-oxidizing microbial mats under dynamic input of light and chemical energy

Klatt, J.
Meyer, S.
Hausler, S.
Macalady, J.
de Beer, D.
Polerecky, L.

Publication date

April 2016

Language

English

Abstract

We studied the interaction between phototrophic and chemolithoautotrophic sulphide-oxidizing microorganisms in natural microbial mats forming in sulphidic streams. The structure of these mats varied between two end-members: one characterized by a layer dominated by large sulphur-oxidizing bacteria (SOB; mostly Beggiatoa-like) on top of a cyanobacterial layer (B/C mats) and the other with an inverted structure (C/B mats). C/B mats formed where the availability of oxygen from the water column was limited (<5 mu M). Aerobic chemolithotrophic activity of the SOB depended entirely on oxygen produced locally by cyanobacteria during high light conditions. In contrast, B/C mats formed at locations where oxygen in the water column was comparatively ...

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Structure and function of natural sulphide-oxidizing microbial mats under dynamic input of light and chemical energy

Abstract

Extracted data

Structure and function of natural sulphide-oxidizing microbial mats under dynamic input of light and chemical energy

Abstract

Extracted data

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