Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Discussion papers
https://doi.org/10.5194/bg-2018-193
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2018-193
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 07 May 2018

Submitted as: research article | 07 May 2018

Status
This preprint has been withdrawn by the authors.

Ammonia impacts methane oxidation and methanotrophic community in freshwater sediment

Yuyin Yang1, Jianfei Chen1, Shuguang Xie1, and Yong Liu2 Yuyin Yang et al.
  • 1State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
  • 2Key Laboratory of Water and Sediment Sciences (Ministry of Education), College of Environmental Sciences and Engin eering, Peking University, Beijing 100871, China

Abstract. Lacustrine ecosystems are an important natural source of greenhouse gas methane. Aerobic methanotrophs are regarded as a major regulator controlling methane emission. Excess nutrient input can greatly influence carbon cycle in lacustrine ecosystems. Ammonium is believed to be a major influential factor, due to its competition with methane as the substrate for aerobic methanotrophs. To date, the impact of ammonia on aerobic methanotrophs remains unclear. In the present study, microcosms with freshwater lake sediment were constructed to investigate the influence of ammonia concentration on aerobic methanotrophs. Ammonia influence on the abundance of pmoA gene was only observed at a very high ammonia concentration, while the number of pmoA transcripts was increased by the addition of ammonium. pmoA gene and transcripts differed greatly in their abundance, diversity and community compositions. pmoA transcripts were more sensitive to ammonium amendment than pmoA gene. Methane oxidation potential and methanotrophic community could be impacted by ammonium amendment. This work could add some new sights towards the links between ammonia and methane oxidation in freshwater sediment.

This preprint has been withdrawn.
Yuyin Yang et al.
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Yuyin Yang et al.
Yuyin Yang et al.
Viewed  
Total article views: 523 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
409 108 6 523 36 2 4
  • HTML: 409
  • PDF: 108
  • XML: 6
  • Total: 523
  • Supplement: 36
  • BibTeX: 2
  • EndNote: 4
Views and downloads (calculated since 07 May 2018)
Cumulative views and downloads (calculated since 07 May 2018)
Viewed (geographical distribution)  
Total article views: 514 (including HTML, PDF, and XML) Thereof 514 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 16 Sep 2019
Publications Copernicus
Download
Withdrawal notice

This preprint has been withdrawn.

Citation