Rhodotorula mucilaginose strain and application thereof in degradation of butachlor

A technology of yeast and glue red, applied in the field of bioremediation, can solve problems such as high toxicity, groundwater and river pollution, and impact on human health, and achieve rich and diverse effects
CN101845401AInactive Publication Date: 2010-09-29NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHEAST AGRICULTURAL UNIVERSITY
Publication Date
2010-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a butachlor degradation strain and application thereof. The butachlor degradation strain is rhodotorula mucilaginose Y-LCY-1 and is preserved in China General Microbiological Culture Collection Center on September 14, 2009 with a preservation number of GMCCNo.3270. The strain can maximally tolerate 1,000 mg.L<-1> butachlor; and after being cultured in an inorganic salt basal medium containing 100 mg.L<-1> butachlor for 7 days at 25 DEG C with the inoculum concentration of 5 percent and pH of 6.5, the strain can degrade 97.6 percent of the butachlor and has good degradation effect on the butachlor of 50 to 500 mg.L<-1>. The strain provided by the invention can be applied to the biological purification of water bodies and soil polluted by the butachlor.
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Description

technical field

[0001] The invention belongs to the technical field of bioremediation, and relates to a strain of Rhodotorula colloides and its application in degrading the herbicide butachlor. Background technique

[0002] Butachlor (C 17 h 26 ClNO 2 ) is a high-efficiency systemic conduction type amide pre-emergence herbicide, mainly used to control barnyard grass in paddy fields and gramineous weeds in dry fields. It has the characteristics of low dosage, high activity, and strong selectivity. It is widely used in my country For production and application, the environmental pollution caused by its residue in water and soil will also become more and more serious. On the one hand, butachlor leaches and diffuses vertically and horizontally with water, especially with the loss of irrigation water and precipitation, which will cause groundwater and river pollution; on the other hand, butachlor is harmful to many microorganisms such as algae, photosynthetic bacteria, and nitr...

Claims

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