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Title: Dominant nitrogen metabolisms of a warm, seasonally anoxic freshwater ecosystem revealed using genome resolved metatranscriptomics

Journal Article · · mSystems
ORCiD logo [1];  [2];  [2];  [3];  [1];
  1. Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, USA, Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, Colorado, USA
  2. Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado, USA
  3. Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, USA, Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado, USA

In aquatic ecosystems where primary productivity is limited by nitrogen (N), whether continuously, seasonally, or in concert with additional nutrient limitations, increased inorganic N availability can reshape ecosystem structure and function, potentially resulting in eutrophication and even harmful algal blooms. Whereas microbial metabolic processes such as mineralization and dissimilatory nitrate reduction to ammonium increase inorganic N availability, denitrification removes bioavailable N from the ecosystem. Therefore, understanding these key microbial mechanisms is critical to the sustainable management and environmental stewardship of inland freshwater resources. This study identifies and characterizes these crucial metabolisms in a warm, seasonally anoxic ecosystem. Results are contextualized by an ecological understanding of the study system derived from a multi-year continuous monitoring effort. This unique data set is the first of its kind in this largely understudied ecosystem (tropical lakes) and also provides insight into microbiome function and associated taxa in warm, anoxic freshwaters.

Sponsoring Organization:
USDOE
OSTI ID:
2282393
Alternate ID(s):
OSTI ID: 2472062
Journal Information:
mSystems, Journal Name: mSystems Journal Issue: 2 Vol. 9; ISSN 2379-5077
Publisher:
American Society for MicrobiologyCopyright Statement
Country of Publication:
United States
Language:
English

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