NDLI: Soil pH Determines Microbial Diversity and Composition in the Park Grass Experiment

Content Provider	Springer Nature Link
Author	Zhalnina, Kateryna Dias, Raquel Quadros, Patricia Dörr Davis Richardson, Austin Camargo, Flavio A. O. Clark, Ian M. McGrath, Steve P. Hirsch, Penny R. Triplett, Eric W.
Copyright Year	2014
Abstract	The Park Grass experiment (PGE) in the UK has been ongoing since 1856. Its purpose is to study the response of biological communities to the long-term treatments and associated changes in soil parameters, particularly soil pH. In this study, soil samples were collected across pH gradient (pH 3.6–7) and a range of fertilizers (nitrogen as ammonium sulfate, nitrogen as sodium nitrate, phosphorous) to evaluate the effects nutrients have on soil parameters and microbial community structure. Illumina 16S ribosomal RNA (rRNA) amplicon sequencing was used to determine the relative abundances and diversity of bacterial and archaeal taxa. Relationships between treatments, measured soil parameters, and microbial communities were evaluated. Clostridium, Bacteroides, Bradyrhizobium, Mycobacterium, Ruminococcus, Paenibacillus, and Rhodoplanes were the most abundant genera found at the PGE. The main soil parameter that determined microbial composition, diversity, and biomass in the PGE soil was pH. The most probable mechanism of the pH impact on microbial community may include mediation of nutrient availability in the soil. Addition of nitrogen to the PGE plots as ammonium sulfate decreases soil pH through increased nitrification, which causes buildup of soil carbon, and hence increases C/N ratio. Plant species richness and plant productivity did not reveal significant relationships with microbial diversity; however, plant species richness was positively correlated with soil microbial biomass. Plants responded to the nitrogen treatments with an increase in productivity and a decrease in the species richness.
Starting Page	395
Ending Page	406
Page Count	12
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	69
Issue Number	2
e-ISSN	1432184X
Language	English
Publisher	Springer US
Publisher Date	2014-11-14
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Microbial community Archaea Bacteria Shannon diversity Plant species richness Biomass Microbiology Ecology Microbial Ecology Geoecology/Natural Processes Nature Conservation Water Quality/Water Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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