Back to Search
Start Over
Bacterial community changes with granule size in cryoconite and their susceptibility to exogenous nutrients on NW Greenland glaciers
- Source :
- FEMS microbiology ecology. 95(7)
- Publication Year :
- 2019
-
Abstract
- Cryoconite granules are dark-colored biological aggregates on glaciers. Bacterial community varies with granule size, however, community change in space and their susceptibility to environmental factors has not been described yet. Therefore, we focused on bacterial community from four different granule sizes (30–249 μm, 250–750 μm, 750–1599 μm, more than 1600 μm diameter) in 10 glaciers in northwestern Greenland and their susceptibility to exogenous nutrients in cryoconite hole. A filamentous cyanobacterium Phormidesmis priestleyi, which has been frequently reported from glaciers in Arctic was abundant (10%–26%) across any size of granules on most of glaciers. Bacterial community across glaciers became similar with size increase, and whence smallest size fractions contain more unique genera in each glacier. Multivariate analysis revealed that effect of nutrients to beta diversity is larger in smaller granules (30–249 μm and 250–750 μm diameter), suggesting that bacterial susceptibility to nutrients changes with growth of granule (i.e. P. priestleyi was affected by nitrate in early growth stage).
- Subjects :
- 010504 meteorology & atmospheric sciences
Greenland
Beta diversity
Biology
Cyanobacteria
01 natural sciences
Applied Microbiology and Biotechnology
Microbiology
03 medical and health sciences
chemistry.chemical_compound
Nutrient
Nitrate
Cryoconite
Botany
Ice Cover
Psychrophile
030304 developmental biology
0105 earth and related environmental sciences
0303 health sciences
geography
geography.geographical_feature_category
Ecology
Microbiota
Granule (cell biology)
Glacier
Nutrients
Arctic
chemistry
Subjects
Details
- ISSN :
- 15746941
- Volume :
- 95
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- FEMS microbiology ecology
- Accession number :
- edsair.doi.dedup.....e3e0e8f3104315eb4f709e1691ca4b9c