Microbial community structure along an altitude gradient in three different localities
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
15227779
DOI
10.1007/bf02931382
Knihovny.cz E-resources
- MeSH
- Archaea genetics isolation & purification MeSH
- Genes, Archaeal MeSH
- Bacteria genetics isolation & purification MeSH
- Genes, Bacterial MeSH
- Staining and Labeling MeSH
- Nitrogen analysis MeSH
- Ecosystem MeSH
- Genes, rRNA MeSH
- Geologic Sediments chemistry microbiology MeSH
- Indoles metabolism MeSH
- Hydrogen-Ion Concentration MeSH
- Altitude MeSH
- Colony Count, Microbial MeSH
- Soil Microbiology * MeSH
- DNA, Ribosomal analysis MeSH
- RNA, Ribosomal, 16S genetics MeSH
- Temperature MeSH
- Carbon analysis MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- China MeSH
- Names of Substances
- DAPI MeSH Browser
- Nitrogen MeSH
- Indoles MeSH
- DNA, Ribosomal MeSH
- RNA, Ribosomal, 16S MeSH
- Carbon MeSH
The microbial community structure along an altitude gradient was investigated in different localities, in Kalasi lake, Urumqi river and Sangong river, Xingjiang (China). The mean numbers of DAPI (4',6-diamidino-2-phenylindole)-stained cells were lower in Kalasi lake than that in Urumqi river and Sangong river; these differences were attributed to increasing environmental harshness including lower soil organic carbon and nitrogen content, more acidic pH and lower annual temperature. In each locality, the numbers of bacteria and archaea measured with two fluorescence-labeled 16S rRNA oligonucleotide probes (EUB338 and ARCH915) were higher in a coniferous forest and lower in desert vegetation. A significant and positive relationship was found between microbial and soil organic carbon and total nitrogen along the altitudinal gradient, indicating that plant communities and soil nutrients influence the soil microbial structure. The results show that the microbial population in higher latitudinal site was fewer than lower latitudinal one, soil microorganisms were positively correlated to soil organic carbon and total nitrogen, and plant communities had an obviously impact on soil microbes.
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