Microbial Ecology
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Impact of Land Use Management and Soil Properties on Denitrifier Communities of Namibian Savannas
Microbial Ecology - Tập 70 - Trang 981-992 - 2015
We studied potential denitrification activity and the underlying denitrifier
communities in soils from a semiarid savanna ecosystem of the Kavango region in
NE Namibia to help in predicting future changes in N2O emissions due to
continuing changes of land use in this region. Soil type and land use (pristine,
fallow, and cultivated soils) influenced physicochemical characteristics of the
soils that...
DGGE and T-RFLP Analysis of Bacterial Succession during Mushroom Compost Production and Sequence-aided T-RFLP Profile of Mature Compost
Microbial Ecology - Tập 57 - Trang 522-533 - 2008
The amount of button mushroom (Agaricus bisporus) harvested from compost is
largely affected by the microbial processes taking place during composting and
the microbes inhabiting the mature compost. In this study, the microbial changes
during the stages of this specific composting process were monitored, and the
dominant bacteria of the mature compost were identified to reveal the
microbiological ...
Enzymatic Activities and Prokaryotic Abundance in Relation to Organic Matter along a West–East Mediterranean Transect (TRANSMED Cruise)
Microbial Ecology - Tập 64 - Trang 54-66 - 2012
The distribution of extracellular enzymatic activities (EEA) [leucine
aminopeptidase (LAP), ß-glucosidase (GLU), alkaline phosphatase (AP)], as well
as that of prokaryotic abundance (PA) and biomass (PB), dissolved organic carbon
(DOC), particulate organic carbon and particulate total nitrogen (POC, PTN), was
determined in the epi-, meso-, and bathypelagic waters of the Mediterranean Sea
along a W...
Endophytic Occupation of Root Nodules and Roots of Melilotus dentatus by Agrobacterium tumefaciens
Microbial Ecology - Tập 52 - Trang 436-443 - 2006
Agrobacterium strains have been frequently isolated from the root nodules of
different legumes. Various possible mechanisms have been proposed to explain the
existence of these bacteria in nodules, but there is no sufficient experimental
evidence to support the estimations. In this work, we proved that the
Agrobacterium strain CCBAU 81181, which was originally isolated from the root
nodules of Ono...
Soil Bacterial Consortia and Previous Exposure Enhance the Biodegradation of Sulfonamides from Pig Manure
Microbial Ecology - Tập 64 - Trang 140-151 - 2012
Persistence or degradation of synthetic antibiotics in soil is crucial in
assessing their environmental risks. Microbial catabolic activity in a sandy
loamy soil with pig manure using 12C- and 14C-labelled sulfamethazine (SMZ)
respirometry showed that SMZ was not readily degradable. But after 100 days,
degradation in sulfadiazine-exposed manure was 9.2%, far greater than soil and
organic manure (0...
Transformation of indole by methanogenic and sulfate-reducing microorganisms isolated from digested sludge
Microbial Ecology - Tập 20 - Trang 171-183 - 1990
In the present study, mineralization of an aromaticN-heterocyclic molecule,
indole, by microorganisms present in anaerobically digested sewage sludge was
examined. The first step in indole mineralization was the formation of a
hydroxylated intermediate, oxindole. The rate of transformation of indole to
oxindole and its subsequent disappearance was dependent on the concentration of
inoculum and ind...
Analysis of spatial and temporal variation in the community structure of yeasts associated with decayingOpuntia cactus
Microbial Ecology - Tập 14 - Trang 267-276 - 1987
The microbial structure within, between, and over time in decaying cladodes of
the common prickly pearOpuntia stricta was studied at each of two separate
localities. In general, the effective number of yeast species and yeast species
diversity increased as the rot aged to the observed maximum time of 4 weeks.
Yeast heterogeneity at the two localities differed in the mode of environmental
influence...
Microbial Biomass and Community Structure in a Sequence of Soils with Increasing Fertility and Changing Land Use
Microbial Ecology - Tập 40 - Trang 223-237 - 2000
The microbial biomass and community structure of eight Chinese red soils with
different fertility and land use history was investigated. Two community based
microbiological measurements, namely, community level physiological profiling
(CLPP) using Biolog sole C source utilization tests and phospholipid fatty acid
(PLFA) profiles, were used to investigate the microbial ecology of these soils
and to...
Initial Phylogenetic Relatedness of Saprotrophic Fungal Communities Affects Subsequent Litter Decomposition Rates
Microbial Ecology - Tập 69 - Trang 748-757 - 2014
Ecosystem-level consequences of biodiversity loss of macroorganisms are well
understood, while the repercussions of species extirpation in microbial systems
are not. We manipulated species richness and phylogenetic relatedness of
saprotrophic fungi in situ in a boreal forest to address this issue. Litter
decomposition rates (as total mass loss) after 2 months were significantly
higher in the least...
A Recipe for Success: Three Key Strategies Used by Aphids and Pseudomonas syringae to Colonize the Phyllosphere
Microbial Ecology - Tập 85 - Trang 1-8 - 2022
Aphids and Pseudomonas syringae are a permanent challenge for agriculture,
causing severe losses to the crop industry worldwide. Despite the obvious
phylogenetic distance between them, both have become predominant colonizers of
the plant kingdom. In this study, we reviewed three key steps of spread and
colonization that aphids and P. syringae have mastered to successfully colonize
the phyllosphere...
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