Chaoying, Guo and Jianfeng, He and Fang, Zhang and Minghong, Cai and Guizhong, Wang (2011) Spatial heterogeneity of a microbial community in Kongsfjorden, Svalbard during late summer 2006 and its relationship to biotic and abiotic factors. Advances in Polar Science, 22 (1). pp. 55-66.
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Abstract
The 16S and 18S ribosomal ribonucleic acid genes of microbial organisms collected from the contrasting environments (temperature, salinity, silicate, phosphate and nitrate, p <0.05) of the inner and outer basins of Kongsfjorden (Spitsbergen, Arctic) were studied using polymerase chain reaction-denaturing gradient gel electrophoresis(DGGE) fingerprinting. Comparison of the microbial fingerprints and the physicochemical parameters revealed that molecular methodology exhibited a greater sensitivity. Sequences obtained from bacterial DGGE were affiliated with four main phylogenetic groups of bacteria: Proteobacteria(Alpha, Beta and Gamma), Bacteroidetes, Verrucomicrobia and Cyanobacteria. The relationships between the genotype distribution of these microbes and associated biotic/abiotic factors, revealed by canonical correspondence analysis, showed that Station 1 at 30 m (outer fjord) was grouped separately from the other sites. This difference could be a consequence of the thermocline and base of the euphotic layer at this depth where the Atlantic and Arctic-type waters overlapped.
| Item Type: | Article |
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| Related URLs: | |
| Keywords: | Microbial community, Genetic diversity, Kongsfjorden, Arctic fjord |
| Subjects: | Natural Environment > Fauna |
| Organizations: | Unspecified |
| Date Deposited: | 13 Sep 2023 11:04 |
| URI: | http://library.arcticportal.org/id/eprint/2413 |
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