30 results about "Enterobacter ludwigii" patented technology

The invention belongs to the technical field of microbiology, in particular to a selenium-resistant strain Enterobacter ludwigii GX-C3 and its application. A selenium-tolerant strain Enterobacter ludwigii GX-C3, whose taxonomic name is Enterobacter ludwigii, was deposited in the Guangdong Provincial Microbial Culture Collection Center on December 10, 2020, and the deposit number is GDMCC No.61358. The selenium-resistant strain Enterobacter ludwigii GX-C3 strain of the present invention has a maximum removal rate of 46.76% of selenium in soil at a selenium concentration of 2000 μg / mL. The results can provide bacterial resources for bioremediation in selenium-contaminated areas, and provide reference for the development and utilization of selenium resources.

The invention relates to an enterobacter for preventing and treating root-knot nematode and its application. The preservation unit of the enterobacter is the China General Microorganism Culture Preservation Management Center, the preservation number is CGMCC No.16336, and the classification is named Ludwig enterobacterium Bacillus ( Enterobacter ludwigii ); the bacterial agent of the enterobacteriaceae has a control effect on nematodes, and has the purposes of improving plant resistance to nematodes and promoting plant growth; the bacterial agent of enterobacteriaceae proposed by the present invention has excellent control effect on plant root-knot nematodes, and simultaneously It can promote plant growth, improve plant resistance to nematodes, and provide new resources for the development of new seed treatment agents and inducers; the mixed use of Enterobacteriaceae and traditional nematicides has excellent control effect on nematodes and can reduce chemical agents The amount of application can reduce pesticide residues, which is of environmental protection significance.

The invention discloses a compound flora for preventing and controlling the outbreak of Fusarium spp. in maize and its application. The complex flora is composed of Acinetobacter baumannii RFAci-1, Pseudomonas stutzeri RFPse-1, Pseudomonas japonicus RFPth-1, Burkholderia cepacia RFBur-1, oligotrophic monocytotrophs maltophilia Bacillus RFSte‑1, Bacillus amyloliquefaciens RFBac‑1, Agrolysobacter RFLys‑1 and Enterobacter ludwig RFEnt‑1. The compound flora has a stable structure and has the characteristics of high-efficiency biocontrol and growth promotion. Inoculation into the soil can significantly reduce the incidence of Fusarium disease caused by Fusarium spp. in the main corn varieties in my country, and can also promote the growth of corn plants.

The present invention discloses Enterobacter ludwigii with preservation No. CGMCC No. 10128. The invention also discloses a composition containing the Enterobacter ludwigii live bacteria described above. The present invention further discloses the application of above Enterobacter ludwigii and compositions in the degradation of quinclorac. The present invention also discloses a method for degrading quinclorac. The method comprises the steps of: under the conditions suitable for Enterobacter ludwigii to survive, adding the above Enterobacter ludwigii or composition into an environment containing quinclorac in order to degrade quinclorac. The Enterobacter ludwigii simply requires the conditions of carbon source, nitrogen source and inorganic salts to survive and grow in an atmosphere containing quinclorac, has the advantages of strong vitality, fast growth, large biomass and high tolerance and degradation ability to quinclorac.

The invention provides an enterobacter ludwigii SXZ-N5 strain producing huperzine A and huperzine B and application thereof. The strain is capable of producing huperzine A and huperzine B. The strainis named as SXZ-N5 and belongs to enterobacter ludwigii. The strain is collected in China Center for Type Culture Collection Center. The address is Wuhan University, Wuhan, China. The postal code is 430072. The strain has a collection date of September 14, 2017, and a collection number of CCTCC NO: M2017511. The 16S rDNA sequence of the strain is shown as SEQ ID NO.1. The enterobacter ludwigii SXZ-N5 strain disclosed by the invention can be used for fermenting to prepare the huperzine A and huperzine B. Microbial fermentation conditions are as follows: a culture medium formula: 4.0g of yeast powder, 8.0g / L of peptone, 7.0g / L of sodium chloride, 9.0g / L of glucose, the pH value of 6.0; as well as culture conditions comprising 28 DEG C and 200 revolutions per minute, and fermented culture isperformed by 10 days.

The invention relates to the field of microbial disease control and in particular relates to a probiotic with bacteriostatic ability. The probiotic is Enterobacter ludwigii-PC88, is collected in China General Microbiological Culture Collection Center (CGMCC) on June 24, 2013, and has a collection number of CGMCC No.7814. The probiotic is separated from intestinal tracts of healthy flounders. The pure culture of the probiotic has relatively strong inhibitory effects on aquatic pathogens such as vibrio splendidus, vibrio harveyi, vibrio parahaemolyticus, pseudomonas aeruginosa and vibrio anguillarum, also can inhibit growth of known human pathogens such as tritirachium album, staphylococcus aureus and klebsiella pneumoniae, and has resistance to ampicillin. The pure culture or composition of the probiotic can be used for control of aquaculture diseases and development of novel antibacterial materials, and has good application prospects.

The invention discloses a strain of Enterobacter ludwig PN6 and its application. The taxonomic name of the strain is Enterobacter ludwigii, the strain number is PN6, and it is preserved in the China Center for Type Culture Collection with the preservation number: CCTCC NO: M 2019881. The bacterial strain PN6 screened from the root system of moso bamboo in the present invention has a significant antibacterial effect on the pathogenic fungus of Phyllostachys phalaensis, and the antibacterial rate of its fermentation broth can reach 49.28%, and has high-efficiency phosphorus-solubilizing and IAA-secreting abilities; The bacterial strain PN6 of the present invention has promoting action to the growth of Phyllostachys pubescens, and the test data shows that the liquid inoculant made of PN6 has significant growth-promoting action to growth indexes such as ground diameter, seedling height and chlorophyll of Phyllostachys pubescens, and can increase the stress resistance of Phyllostachys pubescens, Reduce the probability of occurrence of moso bamboo shoot dieback. Therefore, the present invention provides excellent bacterial strain resources for developing environment-friendly moso bamboo biological special fertilizers.

The invention relates to a liquid bacterial fertilizer obtained by fermenting garlic straws by using enterobacter ludwigii and a preparation method thereof. The liquid bacterial fertilizer is preparedfrom garlic straw, potassium dihydrogen phosphate, soybean meal, corn flour, glucose, yeast powder, water and enterobacter ludwigii (LB) fermentation liquid, wherein the enterobacter ludwigii is Enterobacter ludwigii B424; the preservation number of the enterobacter ludwigii is CGMCC No.14915; the preservation institution of the enterobacter ludwigii is China General Microbiological Culture Collection Center; the preservation address is No. 3, No. 1 Courtyard, West Beichen Road, Chaoyang District, Beijing, China; the preservation date is November 16, 2017. Through the produced disease-resistant multifunctional liquid bacterial fertilizer capable of accelerating growth of crops, the application of chemical fertilizers and pesticides in farmlands is reduced; the farmland ecological environment is improved; the liquid bacterial fertilizer has great economic, social and ecological benefits.