نتایج جستجو برای: bioremediation
تعداد نتایج: 5028 فیلتر نتایج به سال:
Background and purpose: Polycyclic aromatic hydrocarbons (PAHs) are a group of environmental pollutants in soils and sediments that causes concern because of their toxic, mutagenic and carcinogenic effects. The purpose of this study was to determine the feasibility of utilizing poultry manure as a co-substrate to enhance the bioremediation of phenanthrene and anthracene in contaminated soil. ...
The contamination of soil due to activities involved in crude oil exploration and production, spillage emanating from pipeline vandalization, sabotage, theft, corrosion the enterprises artisanal refineries pose health ecological problems. This is especially as contains chemical compounds which are grouped into Total Petroleum Hydrocarbons (TPH), known be toxic, mutagenic, carcinogenic. Bioremed...
Abstract One of the mitigations in dealing with problem waste oil is by using bioremediation techniques. Bioremediation techniques use biological agents that are safe for environment and more cost-effective. The method commonly developed immobilization bacteria plant fibers. fiber used ketapang leaf ( Terminalia catappa ) because it has physico-chemical properties can be bioremediation. This st...
Deinococcus geothermalis is an extremely radiation-resistant thermophilic bacterium closely related to the mesophile Deinococcus radiodurans, which is being engineered for in situ bioremediation of radioactive wastes. We report that D. geothermalis is transformable with plasmids designed for D. radiodurans and have generated a Hg(II)-resistant D. geothermalis strain capable of reducing Hg(II) a...
Cellulose degrading bacteria from koala faeces were isolated using caboxymethylcellulose-Congo red agar, screened in vitro for different hydrolytic enzyme activities and phylogenetically characterized using molecular tools. Bacillus sp. and Pseudomonas sp. were the most prominent bacteria from koala faeces. The isolates demonstrated good xylanase, amylase, lipase, protease, tannase and lignin p...
The fungal genus Exophiala comprises both pathogen species, which cause severe infections in humans, and environmental species, which are able to degrade alkylbenzene compounds. The draft genome sequence of Exophiala mesophila presented here is the first genome assembly of an alkylbenzene-degrading organism belonging to the genus Exophiala.
Environmental contamination with a variety of pollutants has prompted the development of effective bioremediation strategies. But how can these processes be best monitored and controlled? One avenue under investigation is the development of stress response systems as tools for effective and general process control. Although the microbial stress response has been the subject of intensive laborat...
In this Crystal Ball we describe the negative effects of the scheme of intensive agriculture of the green revolution technology. To recover the contaminated soils derived from intensive farming is necessary introduce new successful technologies to replace the use of chemical fertilizer and toxic pesticides by organic fertilizers and biological control agents. Our principal speculation is that i...
Two-component regulatory systems (TCRSs) mediate cellular response by coupling sensing and regulatory mechanisms. TCRSs are comprised of a histidine kinase (HK), which serves as a sensor, and a response regulator, which regulates expression of the effector gene after being phosphorylated by HK. Using these attributes, bacterial TCRSs can be engineered to design microbial systems for different a...
The interaction of microorganisms with pollutants has opened up new vistas to an exciting field of research for environmentalists. The unprecedented interest in bioremediation and its applications stems from the failure of aggressive and invasive treatment methods that disturb ecosystems by cleaning them with unnecessary quantities of chemicals. Therefore, the use of microorganisms represents a...
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