Bacterial niche adaptation at hydrothermal vents
Veröffentlichungsdatum
2016-06-23
Autoren
Betreuer
Gutachter
Zusammenfassung
At deep sea hydrothermal fields, a mixing gradient between hot reduced fluids and cold oxygenated sea water creates a number of micro-environments with different physico-chemical conditions in direct proximity to each other. Although many of the key microorganisms in these environments have been identified and described, a systematic understanding of their distribution across the mixing gradient and their niche partitioning is still missing. In my doctoral thesis, I investigated the interplay of geochemical settings, microbial community structures, and diversification of microorganisms in three collaborative studies of hydrothermal vent fields in the Atlantic and Pacific Oceans. Taken together, this thesis provides a detailed overview of the microbial community structures in hydrothermal vents. It deepens our understanding of niche differentiation of major marine sulfur oxidizers, and offers valuable insights into microbial diversification.
Schlagwörter
diffuse fluids
;
geochemical gradients
;
metagenomes
;
targeted assembly
;
sulfur oxidation
;
carbon fixation
;
community shift
;
microbial communities
;
16S rRNA gene tags
Institution
Fachbereich
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Englisch
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00105481-1.pdf
Size
22.55 MB
Format
Adobe PDF
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