Articles | Volume 2, issue 2
https://doi.org/10.5194/soil-2-185-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/soil-2-185-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Original research article
| 
10 May 2016
Original research article |
| 10 May 2016
Switchgrass ecotypes alter microbial contribution to deep-soil C
Damaris Roosendaal
Soil-Plant-Nutrient Research Unit, United States Department of Agriculture-Agricultural Research Service, Suite 320, 2150 Centre Avenue, Building D, Fort Collins, CO 80526-8119, USA
Catherine E. Stewart
CORRESPONDING AUTHOR
Soil-Plant-Nutrient Research Unit, United States Department of Agriculture-Agricultural Research Service, Suite 320, 2150 Centre Avenue, Building D, Fort Collins, CO 80526-8119, USA
Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523-1499, USA
Karolien Denef
Central Instrument Facility (CIF), Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA
Ronald F. Follett
Soil-Plant-Nutrient Research Unit, United States Department of Agriculture-Agricultural Research Service, Suite 320, 2150 Centre Avenue, Building D, Fort Collins, CO 80526-8119, USA
retired
Elizabeth Pruessner
Soil-Plant-Nutrient Research Unit, United States Department of Agriculture-Agricultural Research Service, Suite 320, 2150 Centre Avenue, Building D, Fort Collins, CO 80526-8119, USA
Louise H. Comas
Water Management Research Unit, United States Department of Agriculture, Agricultural Research Service, Suite 100, 2150 Centre Avenue, Building D, Fort Collins, CO 80526-8119, USA
Gary E. Varvel
Agroecosystems Management Research Unit, USDA-ARS, 251 Filley Hall/Food Ind. Complex, University of Nebraska, Lincoln, NE 68583-0937, USA
retired
Aaron Saathoff
LI-COR Biosciences, Lincoln, NE 68504, USA
Nathan Palmer
Grain, Forage, and Bioenergy Research Unit, USDA-ARS, 251 Filley Hall/Food Ind. Complex, University of Nebraska, Lincoln, NE 68583-0937, USA
Gautam Sarath
Grain, Forage, and Bioenergy Research Unit, USDA-ARS, 251 Filley Hall/Food Ind. Complex, University of Nebraska, Lincoln, NE 68583-0937, USA
Virginia L. Jin
Agroecosystems Management Research Unit, USDA-ARS, 251 Filley Hall/Food Ind. Complex, University of Nebraska, Lincoln, NE 68583-0937, USA
Marty Schmer
Agroecosystems Management Research Unit, USDA-ARS, 251 Filley Hall/Food Ind. Complex, University of Nebraska, Lincoln, NE 68583-0937, USA
Madhavan Soundararajan
Department of Biochemistry, University of Nebraska, Lincoln, NE 68588-0664, USA
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Latest update: 28 Nov 2025
Short summary
Switchgrass is a deep-rooted perennial grass bioenergy crop that can sequester soil C. Although switchgrass ecotypes vary in root biomass and architecture, little is known about their effect on soil microbial communities throughout the soil profile. By examining labeled root-C uptake in the microbial community, we found that ecotypes supported different microbial communities. The more fungal community associated with the upland ecotype could promote C sequestration by enhancing soil aggregation.
Switchgrass is a deep-rooted perennial grass bioenergy crop that can sequester soil C. Although...
