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Microbial Profiles of Rhizosphere and Bulk Soil Microbial Communities of Biofuel Crops Switchgrass (Panicum virgatum L.) and Jatropha (Jatropha curcas L.)
Joint Authors
Dick, Richard P.
Lorenz, Nicola
Dick, Linda K.
Saxena, Jyotisna
Chaudhary, Doongar R.
Source
Applied and Environmental Soil Science
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-15
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Earth Science , Water and Environment
Abstract EN
The production of biofuels from the low-input energy crops, switchgrass (Panicum virgatum L.) and jatropha (Jatropha curcas L.), is a sustainable approach that can provide more usable energy and environmental benefits than food-based biofuels.
Plant rhizosphere affects the microbial community structure due to variations in root exudation rates and residue chemistry.
The objective of this investigation was to determine the profiles of microbial communities associated with rhizosphere and bulk soils of switchgrass or jatropha using phospholipid fatty acid (PLFA) analysis and length heterogeneity PCR (LH-PCR).
Switchgrass soil contained a significantly (P<0.05) higher abundance of Gram-positive (i14:0, i15:0, a15:0), Gram-negative (16:1ω5c, 16:1ω7c, 18:1ω5c), and saturated (14:0, 15:0) PLFAs compared to jatropha soil, whereas jatropha had a higher abundance of fungal (18:2ω6, 9c), 18:1ω9c, 20:1ω9c, and 18:0 PLFAs compared to switchgrass soil.
Irrespective of plant type, rhizosphere soil contained a significantly (P<0.05) higher abundance of saturated PLFAs (16:0, 18:0, 20:0), actinomycetes (10Me17:0), and fungal (18:2ω6, 9c) PLFAs compared to bulk soil; whereas bulk soil had higher abundance of saturated (14:0), Gram-negative (16:1ω9c, 16:1ω5c, 16:1ω7c), and 18:1ω9c PLFAs compared to rhizosphere soil.
Multivariate principle component analysis of PLFAs and LH-PCR percent relative peak areas successfully differentiated the microbial communities of rhizosphere and bulk soils of switchgrass and jatropha.
American Psychological Association (APA)
Chaudhary, Doongar R.& Saxena, Jyotisna& Lorenz, Nicola& Dick, Linda K.& Dick, Richard P.. 2012. Microbial Profiles of Rhizosphere and Bulk Soil Microbial Communities of Biofuel Crops Switchgrass (Panicum virgatum L.) and Jatropha (Jatropha curcas L.). Applied and Environmental Soil Science،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-507056
Modern Language Association (MLA)
Chaudhary, Doongar R.…[et al.]. Microbial Profiles of Rhizosphere and Bulk Soil Microbial Communities of Biofuel Crops Switchgrass (Panicum virgatum L.) and Jatropha (Jatropha curcas L.). Applied and Environmental Soil Science No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-507056
American Medical Association (AMA)
Chaudhary, Doongar R.& Saxena, Jyotisna& Lorenz, Nicola& Dick, Linda K.& Dick, Richard P.. Microbial Profiles of Rhizosphere and Bulk Soil Microbial Communities of Biofuel Crops Switchgrass (Panicum virgatum L.) and Jatropha (Jatropha curcas L.). Applied and Environmental Soil Science. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-507056
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507056