نتایج جستجو برای: microbial pollution

تعداد نتایج: 180437  

2011
G. H. Reischer D. Kollanur J. Vierheilig C. Wehrspaun R. L. Mach R. Sommer H. Stadler A. H. Farnleitner

Water resource management must strive to link catchment information with water quality monitoring. The present study attempted this for the field of microbial fecal source tracking (MST). A fecal pollution source profile based on catchment data (e.g., prevalence of fecal sources) was used to formulate a hypothesis about the dominant sources of pollution in an Austrian mountainous karst spring c...

Journal: :international journal of advanced biological and biomedical research 2014
mehdi hassanshahian

changes in the microbial community in response to catastrophic oil spills in marine and fresh water environments have been well documented. molecular methods provide tools for analyzing the entire bacterial community, covering also those bacteria that have not been cultured in the laboratory. in this study, four different microcosms were set up containing sediments collected from the persian gu...

2017
Christopher Staley Thomas Kaiser Maribeth L Gidley Ian C Enochs Paul R Jones Kelly D Goodwin Christopher D Sinigalliano Michael J Sadowsky Chan Lan Chun

Coral reefs are dynamic ecosystems known for decades to be endangered due, in large part, to anthropogenic impacts from land-based sources of pollution (LBSP). In this study, we utilized an Illumina-based next-generation sequencing approach to characterize prokaryotic and fungal communities from samples collected off the southeast coast of Florida. Water samples from coastal inlet discharges, o...

2017
Jamie M. McDevitt-Irwin Julia K. Baum Melissa Garren Rebecca L. Vega Thurber

The microbial contribution to ecological resilience is still largely overlooked in coral reef ecology. Coral-associated bacteria serve a wide variety of functional roles with reference to the coral host, and thus, the composition of the overall microbiome community can strongly influence coral health and survival. Here, we synthesize the findings of recent studies (n = 45) that evaluated the im...

Journal: :Current opinion in biotechnology 2000
D H Pieper W Reineke

The treatment of environmental pollution by microorganisms is a promising technology. Various genetic approaches have been developed and used to optimize the enzymes, metabolic pathways and organisms relevant for biodegradation. New information on the metabolic routes and bottlenecks of degradation is still accumulating, enlarging the available toolbox. With molecular methods allowing the chara...

Journal: :Journal of environmental monitoring : JEM 2008
Astrid Vivas Beatriz Moreno Coral del Val Cristina Macci Grazia Masciandaro Emilio Benitez

The aim of this study was to characterize soils contaminated by different levels of heavy metals and hydrocarbons (Madonna Dell'Acqua, Pisa, Italy). The soils were chemically and biochemically analysed by measuring the standard chemical properties and some enzyme activities related to microbial activity (dehydrogenase activity) and the soil carbon cycle (total and extracellular beta-glucosidase...

2018
Pramod Pandey Colleen Chiu Max Miao Yi Wang Matthew Settles Noelia Silva Del Rio Alejandro Castillo Alex Souza Richard Pereira Richard Jeannotte

Dairy farms generate a considerable amount of manure, which is applied in cropland as fertilizer. While the use of manure as fertilizer reduces the application of chemical fertilizers, the main concern with regards to manure application is microbial pollution. Manure is a reservoir of a broad range of microbial populations, including pathogens, which have potential to cause contamination and po...

2013
Silvie Hartmann Hana Skrobankova Jarmila Drozdova

Inhibition of the respiration microbial activity in the activated sludge caused by heavy metal concentrations (Cr, Cd, Cu and Ni) was studied by means of respirometric method using Strathtox respirometer (Strathkelvin Glasgow).The studied sludge samples were obtained from the two waste water treatment plants with different types of pollution (municipal waste water and domestic waste water). Key...

Abdol Kazem Neisi, Ahmad Reza Yari, Majid Farhadi, Mehdi Vosoughi, Mohammad Javad Mohammadi, Monavar Daneshpajoh, Soghra Badri,

Background & Aims of the Study: Vegetables are useful for humans as they contain minerals, vitamins, fiber and other nutrients. Eating raw vegetables are a nutritional habit in Iranian families. Raw eating vegetables is the main source of parasitic infections. The aim of this study was to determine microbial contamination of raw vegetables in Ahvaz, Iran during 2014-2015. ...

2016
Shuo Jiao Weimin Chen Entao Wang Junman Wang Zhenshan Liu Yining Li Gehong Wei

As a global problem, environmental pollution is an important factor to shape the microbial communities. The elucidation of the succession of microbial communities in response to pollutants is essential for developing bioremediation procedures. In the present study, ten batches of soil-enrichment subcultures were subjected to four treatments: phenanthrene, n-octadecane, phenanthrene + n-octadeca...

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