9 results about "Capsicum cardenasii" patented technology

The application discloses application of 5,8,11-eicosatrienoic acid in prevention and treatment of plant fungal diseases and belongs to the field of pesticide chemistry. The 5,8,11-eicosatrienoic acid mainly prevents and treats diseases caused by the oomycete class capsicum phytophthora, the compound is a long-chain unsaturated fatty acid, has an antifungal disease effect and can be used as a fungicide to prevent and treat plant diseases. The compound can effectively prevent pathogenic bacteria from invading plants by inhibiting mycelium growth, enhancing cell membrane permeability and interfering with the spore sac release process, and is further used for preventing and treating huge plant fungal diseases. Biological tests show that the compound has a significant concentration-dependent inhibitory effect on the mycelium growth of the capsicum phytophthora, and the half effective inhibitory concentration (EC50) is 60.2 µg / mL. At a concentration of 200 µg / mL, the inhibition rate is more than 83%, the 5,8,11-eicosatrienoic acid can effectively inhibit the release of the capsicum phytophthora spore sac, and the EC50 is 156.3 µg / mL. At a concentration of 200 µg / mL, the inhibition rate is morethan 77%.

The application belongs to the technical field of microbial application, and specifically discloses application of roseofungin Streptomyces roseofunginus in plant disease prevention and treatment. The application finds that after R&M synthesis genes in roseofungin Streptomyces roseofunginus are knocked out, the strain can still synthesize oxazolomycin A. Further finding is that oxazolomycin A shows good inhibitory effect on pepper Phytophthora capsici and Phytophthora sansomei, wherein the EC 50 value of pepper Phytophthora capsici PC35 is 2.95 μg / mL, and the EC 50 value of atractylodes Phytophthora sansomei AMPH-1 is 2.39 μg / mL. The oxazolomycin A prepared by the application can be developed into a biological pesticide that can effectively meet the agricultural development demand of "green ecology", and provides key biocontrol resource support for green prevention and control of plant diseases.

The invention discloses an L-carvone hydrazone derivative and an application thereof. The L-carvone hydrazone derivative disclosed by the invention has the advantages of low raw material cost, simple and convenient synthesis route and the like, and the obtained L-carvone hydrazone product has an excellent bacteriostatic effect on rhizoctonia solani, botrytis cinerea, sclerotinia sclerotiorum, fusarium graminearum, valsa mali and phytophthora capsici, and can be used for preventing and treating various plant fungal diseases.

The application relates to the technical field of plant disease detection, and discloses a primer for detecting pepper Phytophthora capsici, application of the primer, and a product and method for detecting pepper Phytophthora capsici. A high-specificity amplification primer is designed according to a specific sequence of a genome of pepper Phytophthora capsici, the primer can avoid interference of multiple related fungi, and can amplify a sufficient target for detection under a condition of low-abundance pathogenic bacteria; meanwhile, the provided amplification primer is combined with a CRISPR / Cas12a technology, rapid and accurate detection and identification of pepper Phytophthora capsici can be realized, and a very high sensitivity is achieved. In a limited environment, the detection system provided by the application is not only high in sensitivity and strong in specificity, but also short in time consumption and convenient in operation, and provides an effective tool for rapid identification of pepper Phytophthora capsici.

The invention discloses a fungus strain 41233 from Western sand and application of the fungus strain 41233, the taxonomic name of the fungus strain 41233 is Plectosphaerella sp., the preservation number of the fungus strain 41233 is GDMCC No.67505, and the preservation date of the fungus strain 41233 is December 19, 2025. The invention further discloses application of the fungus strain 41233 and a crude extract of the fungus strain 41233 in preparation of pathogenic bacterium inhibition products. The fungus strain 41233 sourced from Xiaxa has inhibitory activity on mango colletotrichum gloeosporioides and / or phytophthora capsici, and a crude extract of the fungus strain 41233 sourced from Xiaxa has inhibitory activity on various pathogenic bacteria such as colletotrichum gloeosporioides, phytophthora and fruit rot pathogens, and can be used for preparing biocontrol inoculants or further mining active natural products. And a new green prevention and control means is provided for plant disease prevention and control.

The invention discloses a method for predicting the infection success probability of pepper colletotrichum gloeosporioides and a method for preventing diseases, which are characterized in that a prediction model of the integral value of the contribution degree of the temperature and the infection success probability of the colletotrichum gloeosporioides under saturated humidity is established to predict a time node with the success probability of 50%, so that targeted pesticide spraying prevention and control are carried out. By adopting the prediction model provided by the invention, the pathogen infection success probability condition can be pre-judged, so that precise pesticide application is performed, the control effect can be improved, the pesticide spraying frequency can be reduced, the pesticide application cost can be reduced, and pesticide residues can be reduced.

The application discloses a kind of capsicum blight prevention and treatment methods, belong to the field of biotechnology, include the following steps: when transplanting capsicum seedling and when first capsicum blight plant appears, compound microbial inoculant is used to the root irrigation of capsicum plant;The compound microbial inoculant includes the volume ratio of 3-5:1-2:1 of paecilomyces lilacinus bacteria suspension, mojavensis bacillus bacteria suspension and penicillium expansum bacteria suspension, wherein, the effective viable count of paecilomyces lilacinus bacteria suspension is: 2x10 8 CFU / mL, the effective viable count of mojavensis bacillus bacteria suspension and penicillium expansum bacteria suspension is: 1x10 8 CFU / mL.The prevention and treatment method disclosed by the application can effectively prevent and treat capsicum blight.

The invention discloses halophilus shore and application thereof, and belongs to the technical field of agricultural microorganisms and biological control. According to the invention, the halophilous bacillus strain NH-1-2 is obtained through screening and identification, and experiments prove that the halophilous bacillus strain NH-1-2 provided by the invention is resistant to salt and alkali, and can grow in an environment of 10% NaCl and pH 10; the strain NH-1-2 can significantly inhibit pepper southern blight, phytophthora capsici and colletotrichum capsici, and the potting prevention efficiency of the pepper southern blight reaches 74.66%; meanwhile, the strain NH-1-2 has an excellent growth promoting effect on plants. Therefore, the halophilous bacillus strain NH-1-2 provided by the invention can be used for preparing products for inhibiting the growth of pathogenic bacteria, preventing and treating plant diseases or promoting the growth of plants, is beneficial to promoting the sustainable development of agriculture, can greatly reduce the pollution to the environment, and has a good application prospect.

The application discloses a rainforest-derived biocontrol bacillus Tea2X-1 and application thereof, relates to the technical field of microorganisms, and provides a rainforest-derived biocontrol bacillus Tea2X-1 and application thereof in inhibiting pathogens of guava fruit rot ( Diaporthe passifloricola ), fusarium oxysporum ( Fusarium oxysporum ), phytophthora phaseoli ( Phytophthora vignae ), aspergillus niger ( Lasiodiplodia theobromae ) and colletotrichum capsici ( Colletotrichum capsici ).