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Glyphosate is the herbicide widely used in China. However, little is known on the processes governing the environmental fate of glyphosate in soils and its environmental risk for groundwater. Laboratory experiments were performed to evaluate the degradation, adsorption, and leaching behavior of glyphosate in three agricultural soils with high sand content and different soil organic carbon content...
Imazethapyr is used widely all over the world for the control of broadleaf weeds in the soybean field. However the serious problem of Imazethapyr has been remainded for long time. Bioremediation is an effective and economic method for the soil that has been polluted by pesticides. Used method of bottle cultivating, one strain of Imazethapyr degradable actinomyces S180 was isolated from the soil where...
This paper is a pilot study on the effect of grass- microorganism combined bioremediation of atrazine contaminated soil. Sorghum hybird sudangrass and ryegrass were selected as two repair grass, and immobilized degrading strain J2 was added into the soil under the indoor pot conditions. When the concentration of atrazine was 20 mg/kg in the soil, grass-microorganism combined bioremediation enjoyed...
Bio-recognition devices have captured special attention because they combine biological specificity and selectivity with electronics to perform environmental and biomedical analysis. Lindane is a recalcitrant pesticide considered potential carcinogen that has caused serious pollution problems. The purpose of the present study is to evaluate Streptomyces sp. M7 ability to dechlorinate lindane in liquid...
The immobilization technology could improve the degradation efficiency and adaptability of bacteria. It is a simple, accurate and safety processing method. The research use alginate sodium embedding method to fix the high efficient atrazine degrading bacteria, research the best immobilized condition of alginate sodium to the atrazine degrading bacteria, provide the theoretical basis for next research...
This paper mainly studies the growth and degradation characteristics of the atrazine degradation strain J2 isolated from the soil collected from the cornfield in northern China with a long history of atrazine application. The growth and the degradation characteristics at different pHs, temperatures and in mediums with different salinity are also studied. The results indicate that: when J2 is inoculated...
In this paper, a novel organophosphate- degrading bacterium HS-D36 belonging to Pseudomonas stutzeri was reported. This bacterium has a strong ability to hydrolyze methyl parathion and the organophosphate pesticides hydrolase gene (oph) was cloned for the organophosphate hydrolase (OPH) function analysis. The oph gene was expressed in Escherichia coli BL21 (DE3) by using pET-28 expression system....
Lots of dimethoate are applied annually in world with the remainder released to environment has brought terrible contamination. Microorganisms play an important role in the biodegradation of pesticide residues in nature. Two fungal strains with dimethoate degradation capability were isolated and named as F1 and F2 after gradual adaptation and enrichment from soil. The further tests were carried out...
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