5 results about "Rhodococcus strain" patented technology

The invention relates to the technical field of micro-ecology, in particular to a rhodococcus coryneform strain and application thereof in aquaculture. The invention discloses a strain of Rhodococcus corynobacteria, and the preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) No.23799. The invention further discloses a preparation method of the strain of Rhodococcus corynobacteria. The rhodococcus strain can oxidize sulfides under the condition of low dissolved oxygen, does not reduce the pH value of a water body, reduces sulfide pollution of an aquaculture water body, relieves bottom mud acidification, and has no toxic effect on cultured animals.

The invention belongs to the technical field of biotechnology and biocatalysis, and particularly relates to rhodococcus etherivorans and application thereof. The rhodococcus etherivorans strain disclosed by the invention can be used for effectively degrading p-methoxybenzonitrile to generate p-methoxybenzoic acid, and the hydrolysis conversion rate is high. The rhodococcus etherivorans strain disclosed by the invention also shows hydrolytic activity to other nitrile compounds, and shows unique hydrolytic activity to nitrile compounds.

This invention discloses a compound microbial agent for processing wastewater from Trichosanthes kirilowii seeds and its preparation method, relating to the field of environmental microbiology. The compound microbial agent is composed of saponin-degrading strains, polysaccharide-degrading strains, and decolorizing strains in a volume ratio of 3:2:1. The saponin-degrading strains are Bacillus strains, the polysaccharide-degrading strains are Pseudomonas strains, and the decolorizing strains are Rhodococcus strains. The preparation method includes: isolating and screening functional strains from Trichosanthes kirilowii planting soil and wastewater from the processing workshop; expanding the culture to a bacterial concentration of CFU / mL or higher; mixing them in a volume ratio of 3:2:1; adding a protective agent; and drying to prepare a powder with a viable count greater than CFU / g. This compound microbial agent is added to the biochemical treatment unit at 0.01%-0.05% of the wastewater volume. Microbial community acclimatization can be completed within 7-14 days, effectively improving COD removal rate, saponin degradation rate, and color removal rate. It is suitable for the efficient biological treatment of Trichosanthes kirilowii seed processing wastewater.

The invention relates to an agricultural pest biological control technology, and aims to provide a rhodococcus strain and application thereof to degradation of insecticides and enhancement of parasitic wasp resistance. The strain is preserved in the China Center for Type Culture Collection, the preservation name is Fanqing Sheng Rhodococcus IT-1, the classification name of Latin is Rhodococcus qingshengii, and the preservation number is CCTCC NO: M 20252461. The 16S rRNA gene sequence of the strain is as shown in SEQ ID NO: 1. The strain is unique in source and broad in function spectrum; biological control can be enhanced, and the effect is remarkable; the strain is supplemented back into the parasitic wasp body in a feeding mode, the endurance capacity of the parasitic wasp to imidacloprid and thiamethoxam can be remarkably improved, and the strain has great significance in maintaining and enhancing the biological control function of an agricultural ecosystem and reducing dependence of chemical pesticides.

This invention relates to a method for enhancing the remediation of petroleum hydrocarbon-contaminated soil and synergistically improving soil carbon sequestration using indigenous degrading bacteria, belonging to the field of ecological environmental protection and remediation technology. Highly efficient petroleum-degrading bacteria strains Acinetobacter junii A2-1 and Rhodococcus sp. A17 were isolated and screened from petroleum hydrocarbon-contaminated soil and deposited at the China General Microbiological Culture Collection Center (CGMCC). The accession number for strain A2-1 is CGMCC No. 23724, and for strain A17 is CGMCC No. 23725. The A2-1 and A17 strains were prepared into a bio-enhancing agent, which was then inoculated into petroleum hydrocarbon-contaminated soil in appropriate amounts to improve the degradation efficiency of petroleum hydrocarbons. Furthermore, vegetation restoration synergistically enhances the soil's carbon sequestration function. This invention not only accelerates the remediation process of petroleum hydrocarbon-contaminated soil but also significantly improves the carbon sequestration capacity of petroleum hydrocarbon-contaminated soil, which is of great significance for the remediation of contaminated soil and the achievement of the "carbon neutrality" goal.