Spatial variation in edaphic characteristics is a stronger control than nitrogen inputs in regulating soil microbial effects on a desert grass
Abstract
Increased atmospheric nitrogen (N) deposition can have wide-ranging effects on plant community structure and ecosystem function, some of which may be indirectly mediated by soil microbial responses to an altered biogeochemical environment. In this study, soils from a field N fertilization experiment that spanned a soil texture gradient were used as inocula in the greenhouse to assess the indirect effects of soil microbial communities on growth of a desert grass. Plant performance and interaction with soil microbiota were evaluated via plant above- and belowground biomass, leaf N concentration, and root fungal colonization. Nitrogen fertilization in the field increased the benefits of soil microbial inoculation to plant leaf N concentration, but did not alter the effect of soil microbes on plant growth. Plant-microbe interaction outcomes differed most strongly among sites with different soil textures, where the soil microbial community from the sandiest site was most beneficial to host plant growth. In conclusion, the findings of this study suggest that in a desert grassland, increases in atmospheric N deposition may exert a more subtle influence on plant-microbe interactions by altering plant nutrient status, whereas edaphic factors can alter the whole-plant growth response to soil microbial associates.
- Authors:
-
[2];
- Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Biology
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- U.S. Geological Survey, Moab, UT (United States). Southwest Biological Science Center
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1351204
- Report Number(s):
- LA-UR-17-22348
Journal ID: ISSN 0140-1963
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Arid Environments
- Additional Journal Information:
- Journal Volume: 142; Journal Issue: C; Journal ID: ISSN 0140-1963
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; 54 ENVIRONMENTAL SCIENCES; Biological Science
Citation Formats
Chung, Y. Anny, Sinsabaugh, Robert L., Kuske, Cheryl Rae, Reed, Sasha C., and Rudgers, Jennifer A. Spatial variation in edaphic characteristics is a stronger control than nitrogen inputs in regulating soil microbial effects on a desert grass. United States: N. p., 2017.
Web. doi:10.1016/j.jaridenv.2017.03.005.
Chung, Y. Anny, Sinsabaugh, Robert L., Kuske, Cheryl Rae, Reed, Sasha C., & Rudgers, Jennifer A. Spatial variation in edaphic characteristics is a stronger control than nitrogen inputs in regulating soil microbial effects on a desert grass. United States. https://doi.org/10.1016/j.jaridenv.2017.03.005
Chung, Y. Anny, Sinsabaugh, Robert L., Kuske, Cheryl Rae, Reed, Sasha C., and Rudgers, Jennifer A. Wed .
"Spatial variation in edaphic characteristics is a stronger control than nitrogen inputs in regulating soil microbial effects on a desert grass". United States. https://doi.org/10.1016/j.jaridenv.2017.03.005. https://www.osti.gov/servlets/purl/1351204.
@article{osti_1351204,
title = {Spatial variation in edaphic characteristics is a stronger control than nitrogen inputs in regulating soil microbial effects on a desert grass},
author = {Chung, Y. Anny and Sinsabaugh, Robert L. and Kuske, Cheryl Rae and Reed, Sasha C. and Rudgers, Jennifer A.},
abstractNote = {Increased atmospheric nitrogen (N) deposition can have wide-ranging effects on plant community structure and ecosystem function, some of which may be indirectly mediated by soil microbial responses to an altered biogeochemical environment. In this study, soils from a field N fertilization experiment that spanned a soil texture gradient were used as inocula in the greenhouse to assess the indirect effects of soil microbial communities on growth of a desert grass. Plant performance and interaction with soil microbiota were evaluated via plant above- and belowground biomass, leaf N concentration, and root fungal colonization. Nitrogen fertilization in the field increased the benefits of soil microbial inoculation to plant leaf N concentration, but did not alter the effect of soil microbes on plant growth. Plant-microbe interaction outcomes differed most strongly among sites with different soil textures, where the soil microbial community from the sandiest site was most beneficial to host plant growth. In conclusion, the findings of this study suggest that in a desert grassland, increases in atmospheric N deposition may exert a more subtle influence on plant-microbe interactions by altering plant nutrient status, whereas edaphic factors can alter the whole-plant growth response to soil microbial associates.},
doi = {10.1016/j.jaridenv.2017.03.005},
journal = {Journal of Arid Environments},
number = C,
volume = 142,
place = {United States},
year = {Wed Mar 22 00:00:00 EDT 2017},
month = {Wed Mar 22 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
Community composition and catabolic functional diversity of soil microbes affected by Hedysarum scoparium in arid desert regions of northwest China
journal, July 2019
- Xue, Zike; He, Xueli; Zuo, Yiling
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Community composition and catabolic functional diversity of soil microbes affected by Hedysarum scoparium in arid desert regions of northwest China
text, January 2019
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- Taylor & Francis