Substrate sources regulate spatial variation of metabolically active methanogens from two contrasting freshwater wetlands

Verfasser / Beitragende:
[Yongxin Lin, Deyan Liu, Weixin Ding, Hojeong Kang, Chris Freeman, Junji Yuan, Jian Xiang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/24(2015-12-01), 10779-10791
Format:
Artikel (online)
ID: 605502641
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024 7 0 |a 10.1007/s00253-015-6912-7  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6912-7 
245 0 0 |a Substrate sources regulate spatial variation of metabolically active methanogens from two contrasting freshwater wetlands  |h [Elektronische Daten]  |c [Yongxin Lin, Deyan Liu, Weixin Ding, Hojeong Kang, Chris Freeman, Junji Yuan, Jian Xiang] 
520 3 |a There is ample evidence that methane (CH4) emissions from natural wetlands exhibit large spatial variations at a field scale. However, little is known about the metabolically active methanogens mediating these differences. We explored the spatial patterns in active methanogens of summer inundated Calamagrostis angustifolia marsh with low CH4 emissions and permanently inundated Carex lasiocarpa marsh with high CH4 emissions in Sanjiang Plain, China. In C. angustifolia marsh, the addition of 13C-acetate significantly increased the CH4 production rate, and Methanosarcinaceae methanogens were found to participate in the consumption of acetate. In C. lasiocarpa marsh, there was no apparent increase in the CH4 production rate and no methanogen species were labeled with 13C. When 13CO2-H2 was added, however, CH4 production was found to be due to Fen Cluster (Methanomicrobiales) in C. angustifolia marsh and Methanobacterium Cluster B (Methanobacteriaceae) together with Fen Cluster in C. lasiocarpa marsh. These results suggested that CH4 was produced primarily by hydrogenotrophic methanogens using substrates mainly derived from plant litter in C. lasiocarpa marsh and by both hydrogenotrophic and acetoclastic methanogens using substrates mainly derived from root exudate in C. angustifolia marsh. The significantly lower CH4 emissions measured in situ in C. angustifolia marsh was primarily due to a deficiency of substrates compared to C. lasiocarpa marsh. Therefore, we speculate that the substrate source regulates both the type of active methanogens and the CH4 production pathway and consequently contributes to the spatial variations in CH4 productions observed in these freshwater marshes. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Calamagrostis angustifolia  |2 nationallicence 
690 7 |a Carex lasiocarpa  |2 nationallicence 
690 7 |a Methanogenic process  |2 nationallicence 
690 7 |a Substrate source  |2 nationallicence 
690 7 |a Active methanogen  |2 nationallicence 
700 1 |a Lin  |D Yongxin  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
700 1 |a Liu  |D Deyan  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
700 1 |a Ding  |D Weixin  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
700 1 |a Kang  |D Hojeong  |u School of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, South Korea  |4 aut 
700 1 |a Freeman  |D Chris  |u School of Biological Sciences, Bangor University, LL57 2UW, Bangor, Gwynedd, UK  |4 aut 
700 1 |a Yuan  |D Junji  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
700 1 |a Xiang  |D Jian  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/24(2015-12-01), 10779-10791  |x 0175-7598  |q 99:24<10779  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6912-7  |q text/html  |z Onlinezugriff via DOI 
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900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Lin  |D Yongxin  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liu  |D Deyan  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ding  |D Weixin  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kang  |D Hojeong  |u School of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, South Korea  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Freeman  |D Chris  |u School of Biological Sciences, Bangor University, LL57 2UW, Bangor, Gwynedd, UK  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yuan  |D Junji  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Xiang  |D Jian  |u State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/24(2015-12-01), 10779-10791  |x 0175-7598  |q 99:24<10779  |1 2015  |2 99  |o 253