Functional diversity of microbial communities in pristine aquifers inferred by PLFA- and sequencing-based approaches
نویسندگان
چکیده
منابع مشابه
High functional diversity stimulates diversification in experimental microbial communities
There is a growing awareness that biodiversity not only drives ecosystem services but also affects evolutionary dynamics. However, different theories predict contrasting outcomes on when do evolutionary processes occur within a context of competition. We tested whether functional diversity can explain diversification patterns. We tracked the survival and diversification of a focal bacterial spe...
متن کاملMolecular analysis of microbial community structures in pristine and contaminated aquifers: field and laboratory microcosm experiments.
This study used phylogenetic probes in hybridization analysis to (i) determine in situ microbial community structures in regions of a shallow sand aquifer that were oxygen depleted and fuel contaminated (FC) or aerobic and noncontaminated (NC) and (ii) examine alterations in microbial community structures resulting from exposure to toluene and/or electron acceptor supplementation (nitrate). The...
متن کاملAdaptation to and biodegradation of xenobiotic compounds by microbial communities from a pristine aquifer.
The ability of subsurface microbial communities to adapt to the biodegradation of xenobiotic compounds was examined in aquifer solids samples from a pristine aquifer. An increase in the rates of mineralization of radiolabeled substrates with exposure was used as an indication of adaptation. For some compounds, such as chlorobenzene and 1,2,4-trichlorobenzene, slight mineralization was observed ...
متن کاملArtificial Functional Difference Between Microbial Communities Caused by Length Difference of Sequencing Reads
Homology-based approaches are often used for the annotation of microbial communities, providing functional profiles that are used to characterize and compare the content and the functionality of microbial communities. Metagenomic reads are the starting data for these studies, however considerable differences are observed between the functional profiles-built from sequencing reads produced by di...
متن کاملProbing the functional diversity of global pristine soil communities with 3-chlorobenzoate reveals that communities of generalists dominate catabolic transformation.
Understanding of functional diversity of microbial populations has lagged description of their molecular diversity. Differences in substrate specificity, kinetics, products, and regulation can dramatically influence phenotypic variation among closely related strains, features that are missed when the strains studied are the fastest-growing and most easily isolated from serial enrichments. To in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biogeosciences
سال: 2017
ISSN: 1726-4189
DOI: 10.5194/bg-14-2697-2017