The response of archaeal species to seasonal variables in a subtropical aerated soil: insight into the low abundant methanogens
| Autor: | Cenling Ma, Chuanlun Zhang, Tommy J. Phelps, Sa Fang, Wei Xie, Na Jiao, Ruixin Zhu |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
China Thaumarchaeota Population DNA Ribosomal Applied Microbiology and Biotechnology 03 medical and health sciences Nitrososphaera RNA Ribosomal 16S Botany education Phylogeny Soil Microbiology education.field_of_study biology Ecology Temperature High-Throughput Nucleotide Sequencing Methanosarcinaceae General Medicine Methanosarcina biology.organism_classification Archaea Methanogen DNA Archaeal 030104 developmental biology Soil water Seasons Methane Soil microbiology Polymorphism Restriction Fragment Length Biotechnology |
| Zdroj: | Applied Microbiology and Biotechnology. 101:6505-6515 |
| ISSN: | 1432-0614 0175-7598 |
| DOI: | 10.1007/s00253-017-8349-7 |
| Popis: | Archaea are cosmopolitan in aerated soils around the world. While the dominance of Thaumarchaeota has been reported in most soils, the methanogens are recently found to be ubiquitous but with low abundances in the aerated soil globally. However, the seasonal changes of Archaea community in the aerated soils are still in the mist. In this study, we investigated the change of Archaea in the context of environmental variables over a period of 12 months in a subtropical soil on the Chongming Island, China. The results showed that Nitrososphaera spp. were the dominant archaeal population while the methanogens were in low proportions but highly diverse (including five genera: Methanobacterium, Methanocella, Methanosaeta, Methanosarcina, and Methanomassiliicoccus) in the aerated soil samples determined by high throughput sequencing. A total of 126 LSA correlations were found in the dataset including all the 72 archaeal OTUs and 8 environmental factors. A significance index defined as the pagerank score of each OTU divided by its relative abundance was used to evaluate the significance of each OTU. The results showed that five out of 17 methanogen OTUs were significantly positively correlated with temperature, suggesting those methanogens might increase with temperature rather than being dormant in the aerated soils. Given the metabolic response of methanogens to temperature under aerated soil conditions, their contribution to the global methane cycle warrants evaluation. |
| Databáze: | OpenAIRE |
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