Microbial community structure along an altitude gradient in three different localities
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
15227779
DOI
10.1007/bf02931382
Knihovny.cz E-zdroje
- MeSH
- Archaea genetika izolace a purifikace MeSH
- archeální geny MeSH
- Bacteria genetika izolace a purifikace MeSH
- bakteriální geny MeSH
- barvení a značení MeSH
- dusík analýza MeSH
- ekosystém MeSH
- geny rRNA MeSH
- geologické sedimenty chemie mikrobiologie MeSH
- indoly metabolismus MeSH
- koncentrace vodíkových iontů MeSH
- nadmořská výška MeSH
- počet mikrobiálních kolonií MeSH
- půdní mikrobiologie * MeSH
- ribozomální DNA analýza MeSH
- RNA ribozomální 16S genetika MeSH
- teplota MeSH
- uhlík analýza MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Čína MeSH
- Názvy látek
- DAPI MeSH Prohlížeč
- dusík MeSH
- indoly MeSH
- ribozomální DNA MeSH
- RNA ribozomální 16S MeSH
- uhlík 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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