NDLI: Parent Material and Vegetation Influence Soil Microbial Community Structure Following 30-Years of Rock Weathering and Pedogenesis

Content Provider	Springer Nature Link
Author	Yarwood, Stephanie Wick, Abbey Williams, Mark Daniels, W. Lee
Copyright Year	2014
Abstract	The process of pedogenesis and the development of biological communities during primary succession begin on recently exposed mineral surfaces. Following 30 years of surface exposure of reclaimed surface mining sites (Appalachian Mountains, USA), it was hypothesized that microbial communities would differ between sandstone and siltstone parent materials and to a lesser extent between vegetation types. Microbial community composition was examined by targeting bacterial and archaeal (16S ribosomal RNA (rRNA)) and fungal (internal transcribed spacer (ITS)) genes and analyzed using Illumina sequencing. Microbial community composition significantly differed between parent materials and between plots established with tall fescue grass or pitch x loblolly pine vegetation types, suggesting that both factors are important in shaping community assembly during early pedogenesis. At the phylum level, Acidobacteria and Proteobacteria differed in relative abundance between sandstone and siltstone. The amount of the heavy fraction carbon (C) was significantly different between sandstone (2.0 mg g−1) and siltstone (5.2 mg g−1) and correlated with microbial community composition. Soil nitrogen (N) cycling was examined by determining gene copy numbers of ureC, archaeal amoA, and bacterial amoA. Gene quantities tended to be higher in siltstone compared to sandstone but did not differ by vegetation type. This was consistent with differences in extractable ammonium (NH4 +) concentrations between sandstone and siltstone (16.4 vs 8.5 μg NH4 +-N g−1 soil), suggesting that nitrification rates may be higher in siltstone. Parent material and early vegetation are important determinants of early microbial community assembly and could be drivers for the trajectory of ecosystem development over longer time scales.
Starting Page	383
Ending Page	394
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	2014-11-05
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Bacterial-fungal communities N-cycling Soil parent material Pedogenesis Succession Mine overburden 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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