14 results about "Phomopsis sp." patented technology

The invention discloses a Trichoderma auritum GUWM22 strain and application thereof, and belongs to the field of microorganisms. The preservation number of the trichoderma auritum GUWM22 is CCTCC (China Center for Type Culture Collection) NO: M20242639, the preservation date is November 26, 2024, the preservation unit is China Center for Type Culture Collection, and the preservation address is Wuhan University, Wuhan, China. Experiments prove that the GUWM22 has a very strong inhibition effect on six pathogenic bacteria (phytophthora nicotianae, phytophthora capsici, botryosphaeria dothidea, alternaria alternata, phomopsis and colletotrichum capsici), the bacteriostasis rate reaches 78% or above, in addition, the GUWM22 also has a good prevention and treatment effect on anthracnose of picked peppers (line peppers), the prevention effect is 82.11%, and it can be seen that the GUWM22 can be used for preventing and treating anthracnose of the picked peppers (line peppers). The Trichoderma aureum GUWM22 is a new biocontrol Trichoderma strain with good potential. The invention provides a new strain resource and an environment-friendly and efficient biocontrol approach for effective prevention and treatment of pepper anthracnose.

The invention discloses bacillus tequilensis P61 and application thereof in prevention and treatment of kiwi fruit soft rot, and belongs to the field of biological prevention and treatment. The bacillus tequilensis P61 provided by the invention is preserved in the China Center for Type Culture Collection on September 5, 2024, and the preservation number of the bacillus tequilensis P61 is CCTCC (China Center for Type Culture Collection) NO: M 20241916. According to the invention, the lipopeptide antibacterial substance is prepared according to the bacillus tequilensis P61. Experimental results show that the bacillus tequilensis P61 and lipopeptide antibacterial substances have an outstanding prevention and treatment effect on the soft rot of the kiwi fruits, have a remarkable bacteriostasis effect on pathogenic bacteria of the soft rot of the kiwi fruits such as botryosphaeria dothidea, alternaria alternata and phomopsis, remarkably reduce the damage rate of the kiwi fruits, are green and safe, are harmless to people and livestock, and are worthy of popularization and application. No pollution is caused to the environment. The invention provides a new biocontrol strain for biological prevention and control of kiwi fruit diseases, and has a wide application prospect.

The invention relates to a salt-tolerant bacillus strain EMM919, which is preserved in the China Center for Type Culture Collection on April 25, 2025, and the preservation number is CCTCC NO: M 2025879. The salt-tolerant bacillus strain EMM919 has the advantages that the salt-tolerant bacillus strain EMM919 is preserved in the China Center for Type Culture Collection on April 25, 2025; the nucleotide sequence of the strain comprises a 16S rRNA (ribosomal Ribonucleic Acid) gene sequence and a gyrB gene sequence. The bacterial strain can be used for preparing microbial pesticides and seed dressing agents for preventing and treating fusarium solani EMF893, neurospora EMF992, cylindrospora robusta EMF882, fusarium laminatum EMF998, alternaria alternata EMF993, botryosphaeria dothidea EMF899, solanum nigrum EMF990, phomopsis EMF898 and fusarium graminearum EMF897. The content of viable bacteria in the liquid pesticide is 2 * 10 < 9 >-5 * 10 < 9 > CFU / mL, and the content of viable bacteria in the solid pesticide is 2 * 10 < 9 >-8 * 10 < 9 > CFU / g. In the liquid seed-dressing agent, the content of viable bacteria is 2 * 10 < 9 >-5 * 10 < 9 > CFU / mL, and in the solid seed-dressing agent, the content of viable bacteria is 2 * 10 < 9 >-8 * 10 < 9 > CFU / g.

The invention discloses biocontrol monascus from rainforests and application of the biocontrol monascus. The name of the monascus is Monascus sanguineus BNMZJ6-6, the monascus sanguineus is classified and named as Monascus sanguineus, and the preservation number of the monascus sanguineus in the Guangdong Microbial Culture Collection Center (GDMCC) is GDMCC No.65369. The monascus sanguineus is named as Monascus sanguineus. The monascus has a very strong antagonistic effect on corynespora vigna, fusarium graminearum, rhizoctonia solani, phomopsis asparagi, verticillium dahliae and pyricularia oryzae.

The present invention provides a curcumol derivative, a preparation method thereof, and an application thereof in the preparation of drugs for preventing and treating wheat head blight, sheath blight of rice, black shank of tobacco, Phomopsis disease and rice blast. It has good antibacterial activity against Rhizoctonia solani of rice, Phytophthora parasitica var. nicotianae of tobacco, Phomopsis sp. and Magnaporthe oryzae, and has good control effects on plant pathogenic fungal diseases such as Rhizoctonia solani of rice, Phytophthora parasitica var. nicotianae of tobacco, Phomopsis sp. and Magnaporthe oryzae, and has broad application prospects and development potential.

The invention discloses application of chlorogenic acid in prevention and treatment of soybean root rot, and relates to the technical field of crop protection. Chlorogenic acid has prevention and treatment effects on soybean root rot caused by four pathogenic bacteria, the prevention and treatment effects on the root rot caused by fusarium tripteroides and fusarium oxysporum are best, and the prevention and treatment effects on the root rot caused by phomopsis and phytophthora sojae are relatively poor; according to the potting control effect, the treatment of spraying the metabolite in advance promotes the growth of soybean seedlings along with the increase of the concentration, the plant height, root length and other physiological indexes of the soybean seedlings are all higher than those of contrast treatment without inoculation of pathogenic bacteria, the disease index is obviously reduced, and the control effect of 200 mu g / mL chlorogenic acid treatment at 20 days reaches 60% or above and is slightly higher than that of a bactericide-methyl fludioxonil. The chlorogenic acid has excellent prevention and treatment potential on soybean root rot, and has a wide development prospect.

The invention discloses a method for identifying the influence of bacillus velezensis on the storage quality of mangoes, the bacillus velezensis is preserved in China Center for Type Culture Collection on June 17, 2024, and the preservation number of the bacillus velezensis is CCTCC (China Center for Type Culture Collection) NO: M20241234. According to the invention, biocontrol bacteria of main disease pathogenic bacteria after mango harvesting are separated and screened from mango pulp, peel and kernel by adopting a plate confrontation method, identification is carried out by adopting morphology and physiological and biochemical determination in combination with 16S DNA sequence analysis, and the influence of the biocontrol bacteria on the storage quality of the harvested mangoes is researched; the basis is provided for improving the quality and commodity value of the picked mangoes and prolonging the shelf life; results show that the bacterial strain numbered as FP-KT-3 has the best inhibition effect on phomopsis pathogenic bacteria, the bacteriostasis rate of the bacterial strain reaches up to 74.89%, the bacterial strain is identified as bacillus velezensis, and it is indicated that the softening speed of fruits can be obviously slowed down and the flavor and nutritional quality of the fruits can be kept when mangoes are treated by the bacillus velezensis.

The invention relates to the technical field of plant protection, and particularly provides application of kaempferol in prevention and treatment of areca leaf blight. The pathogenic bacteria of the leaf spot disease of the areca seeds are Diapodophytic fungi, and the pathogenic bacteria of the leaf spot disease of the areca seeds are Diapodophytic fungi. Experiments prove that the kaempferol can significantly inhibit the mycelial growth of the pathogenic bacteria at low concentration, and can significantly reduce the pathogenicity of the areca catechu leaves and reduce the area of scabs by pretreating the areca catechu leaves. The kaempferol serving as a plant source active component has the advantages of being environmentally friendly, not prone to generating drug resistance and the like, and a new technical scheme and a candidate agent are provided for green and sustainable prevention and control of the areca leaf spot disease.

The invention discloses a pyrazole-containing chalcone derivative as well as a preparation method and application thereof, and belongs to the technical field of pesticide synthesis. A series of pyrazol-containing chalcone derivatives are synthesized by taking chalcone as a leading structure and introducing a pyrazol skeleton with excellent agricultural activity into the structure of chalcone, and plant pathogenic fungus activity inhibition tests are carried out on the synthesized pyrazol-containing chalcone derivatives, so that the activity of the pyrazol-containing chalcone derivatives is shown in the description. The synthesized pyrazole-containing chalcone derivative can effectively inhibit plant pathogenic fungi, and especially has relatively good inhibitory activity on phomopsis, phytophthora capsici and capsicum oxysporum.

The present invention discloses a compound fertilizer for improving the fruit quality of kiwifruit and a preparation method thereof, belonging to the technical field of special fertilizers for kiwifruit. The compound fertilizer for improving the fruit quality of kiwifruit, by weight, comprises the following components: 20-30 parts of quick-acting nitrogen fertilizer, 10-15 parts of potassium fertilizer, 0.2-0.5 part of Bacillus subtilis, 0.5-1 part of Bacillus mucilaginosus, 5-8 parts of peanut meal, 1-3 parts of Chlamydomonas sajao and 0.2-0.5 part of soil loosening agent. In the formula provided by the present invention, each component can specifically inhibit the growth and reproduction of pathogenic microorganisms in the soil, strengthen the kiwifruit plants, so that they are not infected by diseases. When applied during the budding period, it has a good control effect on Botryosphaeria or Phomopsis acting on the flowering period and young fruit period, can greatly reduce the incidence rate of kiwifruit fruit soft rot disease, and improve economic benefits.

The invention relates to the technical field of biocontrol bacteria, in particular to bacillus siamensis ARF-SR1, a biocontrol bacterial agent and application of the bacillus siamensis ARF-SR1 and the biocontrol bacterial agent. The preservation number of the bacillus siamensis ARF-SR1 provided by the invention is CGMCC (China General Microbiological Culture Collection Center) No. 33715. The bacillus siamensis ARF-SR1 provided by the invention is a biocontrol strain separated from a healthy alfalfa field in Ningxia, has a remarkable inhibition effect on alfalfa root rot pathogenic bacteria (particularly fusarium solani, fusarium acuminatum and phomopsis sp.), has an antagonism rate of 57.71-68.86%, can reduce the incidence rate of alfalfa root rot, enriches a biocontrol bacterium resource library, and has a good application prospect. The composition is suitable for green control of alfalfa root rot.

This invention relates to the field of plant protection technology, specifically providing the application of kaempferol in the control of areca leaf spot disease. The pathogen causing areca leaf spot disease is *Pseudomonas stylosa*. Diaporthe pseudophoenicicola Experiments have shown that kaempferol can significantly inhibit the mycelial growth of this pathogen at low concentrations, and can significantly reduce its pathogenicity and lesion area by pretreating areca nut leaves. As a plant-derived active ingredient, kaempferol has the advantages of being environmentally friendly and not prone to developing resistance, providing a new technical solution and candidate agent for the green and sustainable control of areca nut leaf spot disease.

The invention discloses application of luteolin to prevention and treatment of areca leaf spot disease, and belongs to the technical field of biological prevention and treatment. By adding luteolin into the culture medium, the growth rate of phomopsis is remarkably reduced. The areca seeds are pretreated by luteolin solution and then inoculated with pathogenic fungi, compared with unpretreated plants, germs show lower pathogenicity, effective prevention and treatment of plant pathogenic fungal diseases are achieved, meanwhile, the effects of environmental pollution and harm to human bodies are reduced, and compared with traditional chemical pesticides, the areca seeds have the advantages that the cost is low, and the effect is obvious. And the toxicity to a human body and the environment is lower. Experiments show that when the final concentration of luteolin reaches 50 [mu] g / mL, the growth rate of phomopsis is significantly reduced; and when the concentration of the luteolin reaches 0.2 mu g / mL, the pathogenicity of phomopsis can be obviously reduced. The invention provides a novel biological prevention and control method for preventing and controlling the leaf spot disease of the areca seeds.