8 results about "Phomopsis" patented technology

The invention discloses a recombinant genetically engineered bacterium for producing a micafungin precursor FR901379 and an application of the recombinant genetically engineered bacterium. The recombinant genetically engineered bacterium for producing the micafungin precursor FR901379 is obtained by performing overexpression on an epigenetic modification factor in a phomopsis sheathing genome and performing screening to obtain the recombinant genetically engineered bacterium for producing the micafungin precursor FR901379. The epigenetic modification factor comprises a histone methyltransferase (Dot 1), a histone methyltransferase (Set2) or a histone deacetylase (Rpd3). The yield of FR901379 produced by the engineering strain is increased by 40% compared with that of an original strain. The method disclosed by the invention has the characteristics of simplicity and convenience in operation, high transformation efficiency and good genetic stability.

The invention provides an anti-soybean phomopsis seed rot related SNP molecular marker and application thereof, the SNP molecular marker is located at the 8462025th site of the No.18 chromosome of soybean, and the polymorphism is C / G. According to the invention, the SNP molecular marker associated with soybean phomopsis seed rot resistance is found, a target resource library of technicians in the field is enriched, and a new choice is provided for molecular marker-assisted breeding of soybeans. By detecting the SNP molecular marker, soybeans can be identified in the early stage of breeding, germplasm resources with high disease resistance can be quickly determined, and breeding and development of new soybean varieties with resistance to phomopsis are accelerated.

The present application relates to a kind of small and medium-sized river water bottom system ecological restoration method, including bottom mud matrix improvement and module construction and submerged plant planting, wherein bottom mud matrix improvement and module construction include: stripping bottom mud→laying geotextile→burying air pipe→preprocessing bottom mud backfilling→planting mycorrhizal plants and harvesting→throwing into polyphosphorus bacteria→laying stone cage net and stone cage net box.The present application includes the improvement of bottom mud matrix, river bottom module construction, underwater forest module planting and so on multiple aspects, combines river bottom mud matrix improvement and submerged plant planting two aspects closely, complement each other, promote each other, fundamentally solves river water ecological pollution problem using biological measures and engineering measures.

The invention discloses a cedarane ketone hydroxy-oxalaxyl ester derivative as well as a preparation method and application thereof, and belongs to the technical field of agricultural chemistry. The structure of the derivative is shown as a formula I, wherein R is selected from groups shown as E1-E13. According to the invention, safe and non-toxic cedarane ketone is used as a raw material, and oximation and esterification reactions are carried out to prepare a target derivative. The series of derivatives show remarkable and broad-spectrum inhibitory activity on various plant pathogenic fungi, especially phomopsis kiwifruit, valsa mali, verticillium dahliae, mucor and paecilomyces variotii, and the activity of the compound E8 is most prominent. The derivative disclosed by the invention can be used as an active ingredient for preparing a pharmaceutical composition for preventing and treating fungal diseases of plants, and a new choice is provided for developing efficient, low-toxicity and environment-friendly botanical pesticides.

The application provides a naringin derivative, a preparation method of the naringin derivative, and application of the naringin derivative in preparation of medicines for preventing and treating wheat scab, tobacco black stem disease, phomopsis stem rot and pepper wilt, and has good bacteriostatic activity on wheat scab fungus, tobacco black stem fungus, phomopsis stem rot fungus and pepper wilt fungus, has a good prevention and treatment effect on plant pathogenic fungal diseases such as wheat scab, tobacco black stem disease, phomopsis stem rot and pepper wilt, and has a broad application prospect and development potential.

The application discloses a kind of composite functional microbial inoculant load clay mineral / submerged plant-based biological carbon sequestration materials and preparation method, by certain proportion submerged plant Vallisneria, Ceratophyllum, Potamogeton, clay mineral sepiolite powder, green detritus powder, kaolin powder, aerobic bacteria yeast, lactic acid bacteria, photosynthetic bacteria, denitrifying bacteria, anaerobic bacteria Bacillus, nitrifying bacteria, phosphorus-fixing bacteria, pseudomonas are constituted, steps are as follows: (1) submerged plant biochar precursor preparation;(2) clay mineral modification treatment;(3) carrier preparation;(4) bacteria culture;(5) microbial inoculant load: under natural conditions, microbial inoculant load, after natural air drying, obtain the material;It also relates to the use of the material, promote microbial activity, improve microbial diversity, effectively improve the bottom condition, provide favorable growth environment for the recovery and reconstruction of submerged plant, significantly promote the growth of submerged plant, further increase the carbon input of submerged plant, enhance the ecological carbon sink function of lake ecosystem.

The application discloses a polyphosphorus subatlantic bacillus and application thereof, the polyphosphorus subatlantic bacillus 1-29 is identified as subatlantic bacillus ( Atlantibacter sp. ), is preserved in China Microbial Culture Collection Center (CGMCC), and the preservation number is CGMCC No.37506, and the preservation date is January 22, 2026.The polyphosphorus bacteria subatlantic bacillus 1-29 ( Atlantibacter sp. 1-29 ) provided in the application has a better phosphorus removal effect under the conditions that pH is 6-9, initial phosphorus concentration is below 4 mg / L and temperature is 15-30 DEG C, is above 85%;has a higher phosphorus removal potential in actual aquaculture water in-situ purification; and the strain has high safety, and has good application value in aquaculture tail water treatment.

The invention relates to the technical field of water treatment, in particular to a three-dimensional ecological synergistic method for repairing and treating eutrophic water, which mainly comprises the following steps: constructing constructed wetlands on two sides of a water inlet river channel and a water head shoal by utilizing hygrophytes and emergent aquatic plants; submerged plants and floating plants are planted in the shallow and sunny water areas; putting filtering algae, omnivorous fishes and carnivorous fishes into the water body according to the ecological niche; snail and mussel benthic mollusks are put into sludge at the bottom of the water body; splashing a complex microbial inoculant containing nitrifying bacteria, phosphorus-accumulating bacteria and lactic acid bacteria into the water body; the fishes are caught out of the water body, and hygrophytes, emergent aquatic plants, submerged plants and floating plants are removed out of the water body in a manual harvesting mode. By forming a complete substance flow closed loop of'exogenous interception-endogenous conversion-biological removal ', eutrophication substances such as nitrogen and phosphorus in the eutrophication water body can be efficiently and quickly reduced, and the economic benefits of the water body are improved by fully utilizing the eutrophication substances.