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Impairment of cellulose- and cellobiose-degrading soil Bacteria by two acidic herbicides

Title data

Schellenberger, Stefanie ; Drake, Harold L. ; Kolb, Steffen:
Impairment of cellulose- and cellobiose-degrading soil Bacteria by two acidic herbicides.
In: FEMS Microbiology Letters. Vol. 327 (2012) Issue 1 . - pp. 60-65.
ISSN 1574-6968
DOI: https://doi.org/10.1111/j.1574-6968.2011.02460.x

Abstract in another language

Herbicides have the potential to impair the metabolism of soil microorganisms. The current study addressed the toxic effect of Bentazon and MCPA on aerobic and anaerobic Bacteria that are involved in cellulose and cellobiose degradation in an agricultural soil. Aerobic saccharide degradation was reduced at concentrations of herbicides above environmental values. Microbial processes (e.g. fermentations, ferric iron reduction) that were linked to anaerobic cellulose, and cellobiose degradation were reduced in the presence of both herbicides at concentrations above and at those that occur in crop field soil. 16S rRNA gene transcript numbers of total Bacteria, and selected bacterial taxa (Clostridia [Group I], Planctomycetaceae, and two uncultivated taxa of Bacteroidetes) decreased more pronounced in anoxic than in oxic cellulose-supplemented soil microcosms in presence of both herbicides. Collectively, the results suggested that the metabolism of anaerobic cellulose-degrading Bacteria were impaired by in situ-typical herbicide concentrations, whereas in situ concentrations did not impair metabolism of aerobic cellulose- and cellobiose-degrading soil Bacteria.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER102884
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Ecological Microbiology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 29 Jul 2015 05:53
Last Modified: 29 Jul 2015 05:53
URI: https://eref.uni-bayreuth.de/id/eprint/17313