30 results about "Enterobacter ludwigii" patented technology

The invention discloses enterobacter ludwigii PN6 and application thereof. The classification name of the strain is Enterobacter ludwigii with a strain number of PN6, the strain is collected in the China Center for Type Culture Collection and has a collection number of CCTCC NO: M 2019881. The strain PN6 screened from a Phyllostachys edulis root system has an obvious anti-bacteria function for a pathogenic bacterium, i.e., C .phyllostachydis, of the shoot blight of Phyllostachys edulis, a fermentation liquor inhibition rate of the strain PN6 can be 49.28%, and in addition, the strain PN6 has acapacity of efficiently dissolving phosphorus and secreting IAA (indole-3-acetic acid). The strain PN6 disclosed by the invention has an acceleration function for the growth of Phyllostachys edulis,an experiment data displays that a liquid fungicide prepared from the PN6 has an obvious growth promotion function for growth indexes, including the ground diameter, the seedling height, the chlorophyll and the like of the Phyllostachys edulis, in addition, the stress resistance of the Phyllostachys edulis can be increased, and an occurrence probability of the shoot blight of Phyllostachys edulisis reduced. Therefore, the invention provides an excellent strain resource for developing an environmentally-friendly special biofertilizer for the Phyllostachys edulis.

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 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 discloses enterobacter ludwigii and application thereof. A bacterial strain is enterobacter ludwigii MY271 collected in China Center for Type Culture Collection (CCTCC) in March 31, 2015, and has a collection number of CCTCC M2015182. According to the bred bacterial strain disclosed by the invention, beta-mannanase can be produced with high yield by using konjaku flour, manno-oligosaccharides can also be obtained, and the obtained manno-oligosaccharides have very good biological regulation functions, can be used for effectively reducing the cholesterol level of a human body, reducing blood sugar and promoting the growth of bifidobacteria in intestinal tracts, and are good food additives.

The invention discloses a compound microbial agent for reducing aspergillus flavus infection and toxin pollution of grain and oil crops. The microbial agent is prepared from the following raw materials in percentage by mass: 1 to 1.5 percent of bacillus amyloliquefaciens, 2 to 2.5 percent of enterobacter ludwigii, 0.5 to 1 percent of trichoderma koningii 1 and 0.5 to 1.5 percent of trichoderma koningii 2, 0.5 to 1.5 percent of monopotassium phosphate, 1.5 to 2.5 percent of potassium nitrate, 0.5 to 1.5 percent of magnesium sulfate, 45 to 55 percent of wheat bran, 25 to 35 percent of corn flour and 13.5 to 20 percent of meat bone powder. The compound microbial agent can inhibit fungal diseases such as toxin-producing aspergillus flavus in soil, reduce aflatoxin pollution in agricultural products in the middle and later periods and improve the quality and quality safety of the agricultural products, and meanwhile, a plurality of trace elements and microorganisms are added, so that the soil fertility is improved, the degradation of harmful residues in soil is accelerated, the continuous cropping obstacle of crops is overcome, and the like.

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.

The invention discloses a plant growth-promoting strain XN-K13, which is classified and named as Enterobacter ludwigii XN-K13, is preserved in China Center for Type Culture Collection on May 25th, 2020, has an address of Luojia Mountain in Wuhan City, Hubei Province, China, and has a preservation number of CCTCC NO: M 2020145. The plant growth-promoting strain XN-K13 provided by the invention canbe used for synthesizing plant growth hormone indoleacetic acid (IAA) by taking tryptophan as a precursor, can be directly utilized by plants because of being adsorbed on the surfaces of seeds and root systems, and can also be used for stimulating the growth and proliferation of plant cells under the combined action of the plant growth-promoting strain XN-K13 and the IAA endophytic in the plants;therefore, the growth and development of plant roots are promoted, moisture and nutrients in soil are effectively absorbed, and other life activities in plants are regulated.

The invention belongs to the technical field of microorganisms, and particularly relates to a microbial agent for promoting root nodule quantity increase and root nodule nitrogenase activity increase of leguminous crops and application of the microbial agent. The microbial agent is prepared by respectively fermenting and culturing four microbial bacteria, namely bacillus amyloliquefaciens, brevibacillus laterosporus, bacillus mucilaginosus and enterobacter ludwigii, concentrating, mixing and compounding. The microbial agent can effectively promote the number of root nodules with nitrogenase activity and increase of nitrogenase activity, promote crop growth and improve crop yield and product quality.

The invention relates to a method for preventing and controlling aspergillus flavus and toxin thereof and increasing the number of nitrogenase active root nodules of leguminous roots. Comprising the following steps: obtaining bacillus amyloliquefaciens, brevibacillus laterosporus, bacillus mucilaginosus and enterobacter ludwigii which have prevention and control effects on aspergillus flavus and toxins thereof; after two or three of bacillus amyloliquefaciens, brevibacillus laterosporus and bacillus mucilaginosus are mixed with enterobacter ludwigii, the mixture is applied to the field of leguminous crops, and the number of root nodules with nitrogenase activity at the roots of the leguminous crops is increased. The strain is used for increasing the number of nitrogenase active root nodules at the roots of leguminous crops such as peanuts and reducing the levels of aspergillus flavus and aflatoxin, and is simple to use, remarkable in yield increasing benefit and ecological benefit and easy to popularize and apply.

The invention relates to the technical field of agriculture and microorganisms and discloses a phosphate solubilizing bacterium 3-1 with high salt resistance and heavy metal cadmium resistance and application of the phosphate solubilizing bacterium 3-1. The bacterial strain is Enterobacter ludwigii strain 3-1 which is preserved in China Center for Type Culture Collection in Wuhan University on June 18, 2021, and the preservation number of the bacterial strain is CCTCC M 2021734. The phosphate solubilizing bacterium (Enterobacter ludwigii strain 3-1) 3-1 disclosed by the invention has the effects of solubilizing phosphorus, fixing nitrogen, producing plant growth hormones and promoting plant growth, and can be applied to soil with high salinity and high heavy metal concentration. When the phosphate solubilizing bacterium 3-1 is applied to soil and plant seedlings, the content of available phosphorus in the soil can be remarkably increased, the plant height, wet weight, dry weight and rhizome length of plants are greatly increased, and the phosphate solubilizing bacterium 3-1 has an important significance in agricultural production and sustainable development.

The invention discloses a composite flora for preventing and controlling the outbreak of maize seed fusarium and application of the composite flora. The compound flora is prepared from acinetobacter baumannii RFAci-1, pseudomonas stutzeri RFPse-1, pseudoxanthomonas japonicum RFPth-1, burkholderia cepacia RFBur-1, stenotrophomonas maltophilia RFSte-1, bacillus amyloliquefaciens RFBac-1, lysobacter soilis RFLys-1 and enterobacter ludwigii RFEnt-1. The composite flora is stable in structure, has the characteristics of efficient biocontrol and growth promotion, can significantly reduce the morbidity of fusarium diseases caused by seed fusarium in main maize planting varieties in China after being inoculated into soil, and can also promote the growth of corn plants.

The invention belongs to the technical field of agricultural microorganisms, and particularly relates to a microbial composition and application thereof in promoting germination and growth of highland barley seeds. According to the specific technical scheme, the microbial composition at least comprises at least two of Rahnella aquatilis, Enterobacter ludwigii and Enterobacter cloacae. Three new microbes are screened out, the acid resistance is high, IAA can be produced under the condition that no precursor substance exists, and when the precursor substance is provided, the IAA production capacity is very excellent; and the phosphate solubilizing capability is excellent, and certain siderophore producing capability is also realized. The microbial preparation is prepared from three microbes, is used for germination, rooting promotion and seedling growth of seeds, especially highland barley seeds, and has remarkable effects.

The invention relates to the technical field of agriculture and microorganisms, and discloses a phosphate solubilizing bacterium 3-1 with high salt resistance and heavy metal cadmium resistance and application thereof. The bacterial strain is Enterobacter ludwigii strain 3-1 which is preserved in the China Center for Type Culture Collection (CCTCC) of Wuhan University on June 18, 2021, and the preservation number is CCTCC M 2021734. The phosphate solubilizing bacterium 3-1 disclosed by the invention has the effects of solubilizing phosphorus, fixing nitrogen, producing plant growth hormone and promoting plant growth, and can be applied to soil with high salinity and high heavy metal concentration. When the phosphate solubilizing bacterium 3-1 is applied to soil and plant seedlings, the content of available phosphorus in the soil can be remarkably increased, the plant height, wet weight, dry weight and rhizome length of plants are greatly increased, and the phosphorus-containing compound fertilizer has important significance on agricultural production and sustainable development.

The invention relates to the field of microorganisms, in particular to enterobacter ludwigii as well as a screening method and application thereof. The enterobacter ludwigii ZY-10 is screened from activated sludge of a wastewater treatment station of a liquor factory, and is preserved in the Guangdong Microbial Culture Collection Center on April 29, 2021, the preservation number is GDMCC No: 61633, and the preservation address is the 5th floor, No. 59 building, No. 100 Courtyard, Xianlie Middle Road, Guangzhou City, Guangdong Province. The strain is easy to culture, and the ammonia nitrogen degradation rate is high. The strain is used for treating ammonia nitrogen in white spirit wastewater, and the degradation rate of the ammonia nitrogen reaches 60-85%. The invention provides an important strain for a nitration process in biological denitrification of the white spirit wastewater, lays a foundation for later construction of a compound strain for treating the white spirit wastewater, and has a relatively high application value.

The invention provides Enterobacter ludwigii and application thereof, and belongs to the technical field of biochemistry. The strain is Enterobacter ludwigii YYP3, and the preservation number of the strain is CCTCC (China Center For Type Culture Collection) NO: M 2020607. The invention also provides a method for converting 5-hydroxymethylfurfural into 2, 5-dimethylolfuran, and the strain is used as a biocatalyst. The invention provides an application of the strain in conversion of 5-hydroxymethylfurfural.

The invention relates to a method for increasing the number of root nodules with nitrogenase activity at roots of leguminous plants and application of the method to leguminous crops. After two or three of bacillus amyloliquefaciens, brevibacillus laterosporus and bacillus mucilaginosus are mixed with enterobacter ludwigii, the mixture is applied to the field of leguminous crops to increase the number of root nodules with nitrogenase activity at the roots of the leguminous crops. The method is used to increase the number of root nodules with nitrogenase activity at the roots of leguminous crops such as peanuts, and is simple to use, remarkable in yield increasing benefit and ecological benefit and easy to popularize and apply.

The present invention relates to a strain of Enterobacter ludwigii, which is classified as Enterobacter ludwigii SYB1, and has been preserved in the General Microorganism Center of China Microbiological Culture Collection Management Committee on June 27, 2016, and the preservation number is CGMCC No.12709. The present invention also relates to the application of Ludwig enterobacteria strain in inducing magnesium ion mineralization. Enterobacter ludwig strain of the present invention is to Mg ²⁺ The sedimentation effect is remarkable, and high-quality magnesite can be prepared by using the Enterobacter ludwig strain of the invention, and can also be used in the field of hard water softening, with good sedimentation effect, simple operation, low price, and environmental friendliness.