181 results about "Sheath blight" patented technology

According to the nano pesticide and the preparation method and application thereof, pH response type nano particles ZIF-90 serve as a carrier, azoxystrobin is loaded to serve as a medicine, and the nano pesticide is used for preventing and treating rice sheath blight disease caused by rhizoctonia solani. When the rhizoctonia solani infects rice, oxalic acid can be generated to reduce the pH around an infected area, so that the ZIF-90 carrier skeleton and the hyaluronic acid coating are decomposed to release azoxystrobin, and the rhizoctonia solani is inhibited in a targeted manner. It is further found that ZIF-90 and azoxystrobin have synergistic bacteriostatic activity, the EC50 value of azoxystrobin to rhizoctonia solani can be greatly reduced, after ZIF-90 carrier encapsulation and hyaluronic acid end capping, the photolysis stability of azoxystrobin can be improved, the adhesive force of azoxystrobin on rice leaves can be enhanced, and the ZIF-90 and azoxystrobin compound has important application in agricultural disease control.

According to the suspending agent containing the pydiflumetofen and the meconazole, provided by the invention, the defects of a traditional single bactericide are overcome, and the control effect on various plant diseases is improved. According to the suspending agent disclosed by the invention, a natural biological source substance chitosan oligosaccharide is introduced as a thickening agent, so that the prevention and treatment effect of the agent on the rice sheath blight disease can be improved unexpectedly.

The present invention belongs to the field of microbial application technology, and specifically relates to a Streptomyces torulosus for preventing and controlling plant diseases and its application. The Streptomyces torulosus is Streptomyces torulosus Jna201, with a deposit number of CGMCC No. 34097, and was deposited at the General Microbiology Center of the China National Committee for the Collection of Microorganisms on April 3, 2025. The present invention provides a Streptomyces torulosus for preventing and controlling rice sheath blight and corn stalk rot. The present invention shows through greenhouse efficacy experiments that Streptomyces torulosus Jna201 can effectively inhibit the lesion length of rice sheath blight and corn stalk rot in greenhouse efficacy determinations, indicating that Streptomyces torulosus Jna201 can effectively inhibit the infection of rice sheath blight and corn stalk rot, and has important significance for the green prevention and control of rice sheath blight and corn stalk rot.

The invention discloses bacillus tequilensis and application thereof, and belongs to the technical field of biology. The preservation number of the bacillus tequilensis is CCTCC (China Center For Type Culture Collection) NO: M 20251909, and the bacillus tequilensis has a remarkable inhibition effect on rice sheath blight disease pathogenic bacteria (Rhizoctonia solani). An in-vitro confrontation culture and potting verification method is adopted to prove that the strain can inhibit the growth of germs, and a plate confrontation experiment shows that the hypha growth inhibition rate of the strain to YM-Q-7 reaches 70.36%. The bacterial suspension (1 * 10 < 8 > CFU / ml) of the strain is used for performing root irrigation treatment on potted rice, the prevention and treatment effect reaches 28.85%, and a good application prospect is provided for prevention and treatment of rice sheath blight disease.

The invention discloses an application of OsPRSBR1 protein and a coding gene thereof in regulation and control of plant sheath blight resistance, and belongs to the technical field of biology. The application of the OsPRSBR1 gene and the protein coded by the OsPRSBR1 gene in regulating and controlling the sheath blight resistance of plants is found for the first time, and a theoretical basis and a research thought are provided for molecular breeding and germplasm resource improvement related to the sheath blight resistance; it is further proved through experiments that after the OsPRSBR1 gene is knocked out, the resistance of the plant to the banded sclerotial blight is weakened, and after the OsPRSBR1 gene is over-expressed, the resistance of the plant to the banded sclerotial blight is enhanced; therefore, the method has a good application prospect in the field of agricultural production.

The invention discloses an application of a rice bHLH transcription factor OsbHLH024 and a coding gene thereof in disease-resistant breeding, and belongs to the technical field of gene engineering. The amino acid sequence of the rice bHLH transcription factor OsbHLH024 is as shown in SEQ ID NO. 2, and the nucleotide sequence of the gene OsbHLH024 is as shown in SEQ ID NO. 1. Experiments prove that through overexpression of the OsbHLH024 gene in the Zhonghua 11, the resistance of rice to rice blast, banded sclerotial blight and leaf blight can be remarkably improved; the OsbHLH024 gene is knocked out, and the resistance of rice to rice blast, banded sclerotial blight and leaf blight can be remarkably reduced. Therefore, the OsbHLH024 gene can positively regulate the disease resistance of the plant, which is of great significance to the cultivation of disease-resistant rice varieties.

The invention belongs to the field of molecular biology, and particularly relates to application of an OsNiR1 gene to improvement of rice broad-spectrum disease resistance and improvement of rice agronomic traits. The invention provides an application of an OsNiR1 gene, and the application comprises an application in preventing and treating plant diseases and / or enhancing the resistance of plants to pathogenic bacteria, and / or an application in improving agronomic traits of the plants. The amino acid sequence coded by the OsNiR1 gene is as shown in SEQ ID NO. 1, and the CDS sequence of the OsNiR1 gene is as shown in SEQ ID NO. 2. The application proves that OsNiR1 participates in regulating and controlling the immune response pathway of rice to fungal disease rice blast, fungal disease banded sclerotial blight and bacterial disease bacterial leaf blight. Meanwhile, after the strong promoter ubi is adopted for driving, an overexpression material of the OsNiR1 is higher and stronger than a wild plant type, and the tiller number is increased. The invention provides important gene resources and molecular theoretical basis for developing a new variety of broad-spectrum disease-resistant rice.

Provided is a use of genes OsADR1 and OsTIR in enhancing broad-spectrum disease resistance in rice. The genes OsADR1 and OsTIR can enhance resistance in rice against diseases such as rice blast and sheath blight, and thus play a valuable role in the development of new disease-resistant rice varieties.

The present application relates to a kind of phenyl-tetrazole oxime derivatives and its preparation method and application, wherein the phenyl-tetrazole oxime derivatives have the structure as shown in formula (I), wherein R 1 , R 2 , T, R a , R b , R c , R d , R e Have the meaning described in the present application;The phenyl-tetrazole oxime derivatives described in the present application have excellent prevention effect on cucumber downy mildew, rice sheath blight, cucumber gray mold, cucumber powdery mildew and the like, and can be further developed as a fungicide for application.

This invention discloses an oxyindene compound containing substituted pyridine and its application as a fungicide. The oxyindene compound containing substituted pyridine has broad-spectrum fungicidal activity, especially effective in controlling rice sheath blight, apple tree rot, rapeseed sclerotinia stem rot, wheat scab, pepper blight, cucumber anthracnose, tomato gray mold, corn curvature blight, rice blast, tomato early blight, wheat take-all, and wheat stem rot. It can be used as a fungicide for the prevention and control of the above-mentioned plant diseases.

The invention discloses a rice fork head related structural domain protein coding gene OsFHA11 and application thereof, and belongs to the technical field of plant genetic engineering. According to the invention, the OsFHA11 gene is connected with an overexpression vector through a genetic engineering means and then is transformed into rice, so that the expression of the gene in the transformed rice plant is improved, and the resistance of the rice plant to sheath blight can be improved. Through cloning of the OsFHA11 gene and analysis of the sheath blight resistance function of the OsFHA11 gene, analysis of a molecular mechanism of rice sheath blight resistance is facilitated. In practice, a sheath blight resistant rice material can be cultivated by using the gene through a transgenic means, and a sheath blight resistant rice variety with stable characters is further obtained through interspecies hybridization, so that the occurrence of sheath blight is effectively controlled, and the rice yield is increased.

The application discloses a rice disease resistance related gene OsbZIP65 and application thereof, and belongs to the technical field of plant genetic engineering.The application finds that OsbZIP65 negatively regulates the resistance of rice to sheath blight by constructing an overexpression rice strain and a gene editing rice strain of OsbZIP65 shown in SEQ ID NO.1.The application further finds that a 86bp base sequence in the 5'UTR region of the OsbZIP65 promoter is a core region responding to YWK196 induction of the sheath blight bacteria, the region is differentiated in different haplotypes, and the haplotype is related to the low pathogen-induced expression amount of OsbZIP65 and the enhanced resistance to the sheath blight.Therefore, the disease resistance of rice can be improved by genetic manipulation or haplotype hybridization of the OsbZIP65 gene, and the materials and products of the rice sheath blight resistance can be bred and created, and the disease resistance of rice can be further improved.

This application discloses a Bacillus subtilis strain JTFB-01 and its applications, belonging to the field of microbiology. The Bacillus subtilis strain JTFB-01 has the accession number CGMCC No. 37199 and is deposited at the China General Microbiological Culture Collection Center on December 25, 2025. Field trials show that this inoculant, applied through seed treatment, achieves control effects of 68.20%, 71.73%, and 72.15% against wheat take-all, sheath blight, and root rot, respectively, and significantly increases wheat plant height and yield. It also shows a field control effect of over 50% against cotton Verticillium wilt, with a yield increase of over 17%. This inoculant effectively controls soil-borne diseases and overcomes crop replanting obstacles through multiple mechanisms, including inhibiting pathogens, colonizing the rhizosphere, and promoting growth, thus possessing significant agricultural application value.

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.

This invention discloses a strain of Streptomyces gravidarum and its application, belonging to the field of biotechnology. The preservation number of the Streptomyces gravidarum is: CCTCC NO: M 20251912. The Streptomyces gravidarum can be used to control rice sheath blight.

The application provides a streptomyces LZZY-S3 and application thereof, and belongs to the field of microorganisms.The streptomyces LZZY-S3 provided by the application enriches strains for biological control, and realizes the dual functions of plant resistance to pathogenic bacteria and plant promotion.The streptomyces LZZY-S3 has the function of inhibiting fungi in a wide range, and can be applied to plant resistance to pathogenic bacteria, and the pathogenic bacteria include Exobasidium vexans, Botryosphaeria spp., Gibberella, Fusarium oxysporum, Pythium, Fusarium graminearum, Didymella, Fusarium pseudograminearum, Trichothecium roseum, Coniella diplodiella, Colletotrichum graminicola or Rhizoctonia cerealis, wherein the inhibition rate of Exobasidium vexans reaches 91.2%.The streptomyces LZZY-S3 can also be applied to plant promotion, preparation of nitrogen-fixing bacterial agents and preparation of ACC deaminase bacterial agents and the like.

The invention relates to the field of plant genetic engineering, and discloses a corn sheath blight disease-resistant gene GRMZM2G057329 and application thereof, and the corn sheath blight disease-resistant gene GRMZM2G057329 comprises any one of the following sequences: a nucleotide sequence shown as SEQ ID No.1, a nucleotide sequence shown as SEQ ID No.2, a nucleotide sequence shown as SEQ ID No.3, a nucleotide sequence shown as SEQ ID No.4, a nucleotide sequence shown as SEQ ID No.5, a nucleotide sequence shown as SEQ ID No.6, a The nucleotide sequence is as shown in SEQ ID No.2; the amino acid sequence of the protein is shown as SEQ ID No.3; the nucleotide sequence has 90% or more of identity with the nucleotide sequence as shown in SEQ ID No. 1 or SEQ ID No. 2 and is used for coding protein with the same function as the nucleotide sequence as shown in SEQ ID No. 1 or SEQ ID No. 2. According to the present invention, the DNA fragment of the complete coding segment of the anti-disease gene GRMZM2G057329 separated and cloned from corn is adopted, and the GRMZM2G057329 gene expression quantity is increased so as to significantly enhance the sheath blight resistance of the corn genetic transformation plant;

The invention provides an alkaloid Waltherione S analogue as well as a synthesis method and application thereof, and relates to the technical field of alkaloid Waltherione compounds. According to the present invention, the structures of the Waltherione A and the Antidesmone are simplified, the pyridine and pyridone alkaloid Waltherione S analogue is designed and synthesized, and the synthesized compound has broad-spectrum bacterial killing activity on banana wilt pathogen, wheat scab pathogen, banana anthracnose pathogen, phytophthora capsici pathogen, botrytis cinerea, rhizoctonia solani, rice blast pathogen, mango stem-end rot pathogen and the like, the compound also has good nematicidal activity on root-knot nematodes, provides a favorable candidate agent for natural, safe and low-toxicity innovative pesticides, and is expected to be applied to agricultural production.

This invention relates to the field of medicinal chemistry, specifically to a capsaicin-like compound containing isopropanolamine, its preparation method, and its application. This type of compound has a structure as shown in general formula (I). The invention uses capsaicin and isopropanolamine as pharmacophores, connecting the two pharmacophores with different bridging chains to synthesize a series of capsaicin-like derivatives containing isopropanolamine. These compounds exhibit excellent inhibitory effects on plant pathogenic bacteria such as rice bacterial blight, citrus canker, rice bacterial leaf streak, and kiwifruit canker; and plant pathogenic fungi such as cucumber gray mold, pepper wilt, rapeseed sclerotinia rot, eggplant verticillium wilt, wheat scab, potato late blight, blueberry root rot, grape coccidioidomyces, dragon fruit anthracnose, and rice sheath blight, providing an important scientific basis for the research and development of new pesticides.

The invention discloses a virens and white beard fungus strain and application thereof, and belongs to the technical field of biology. The preservation number of the white beard virens SJ-50F is CCTCC (China Center For Type Culture Collection) NO: M 20251911, and the white beard virens SJ-50F has a remarkable inhibition effect on a rice sheath blight disease pathogenic bacterium rhizoctonia solani YM-Q-7. According to the invention, an in-vitro confrontation culture and potting verification method is adopted, which proves that the virens SJ-50F can inhibit the growth of germs, a plate confrontation experiment shows that the hypha growth inhibition rate of YM-Q-7 reaches 82.36%, and the hypha growth inhibition rate of fermentation supernate of the virens SJ-50F to YM-Q-7 reaches 90.79%.

The application discloses a kind of compounds with carbonyl coupling rigid fragment and its preparation method and bactericidal purposes.The compound has the structure shown in general formula I.A rigid carbonyl skeleton is constructed by connecting amino-containing 1,2,4-triazole through amide bond, and maleic acid structure and bioactive biological amine fragment are introduced, which are integrated in the same molecular skeleton by carbonyl coupling method.The compound synthesis route is short, the reaction condition is mild, and the yield is high.The biological activity test results show that the compound has broad-spectrum and significant inhibitory activity on rice sheath blight fungus, tomato botrytis cinerea, rice blast fungus, grape anthracnose fungus, oilseed rape sclerotinia sclerotiorum and many other plant pathogenic fungi.The compound has multi-target synergistic mechanism and low risk of drug resistance.

The invention relates to a quinoline hydrazone compound containing a hydrazone structure as well as a preparation method and application of the quinoline hydrazone compound, and relates to the technical field of chemical engineering and pesticides. According to the invention, 5-aminoquinoline is used as a raw material to synthesize a series of quinoline hydrazone compounds containing a hydrazone structure; the prepared compound can effectively prevent and treat plant fungal diseases including cucumber gray mold, potato late blight, sclerotinia rot of colza, tomato gray mold, wheat scab, rice blast, kiwi fruit phomopsis and rice sheath blight disease.

This invention relates to a method for preparing a class of substituted phenylpyrimidine guanidine compounds and their application as antiviral agents and fungicides, belonging to the field of agrochemicals. The substituted phenylpyrimidine guanidine compounds have the structure shown in general formula (I), wherein R... 1 = Monosubstituted methyl, isopropyl, methoxy, halogen; R 2 = Mono- or poly-substituted H, methyl, trifluoromethoxy, trifluoromethyl, halogen. The substituted phenylpyrimidine guanidine compounds provided by this invention have good inhibitory effects on tobacco mosaic virus in different crops and can be used for the control of this disease. The substituted phenylpyrimidine guanidine compounds provided by this invention have inhibitory effects on fungal diseases such as tomato gray mold, rice sheath blight, rice blast, and pepper blight pathogens and can be used for the control of these diseases.

The application discloses a kind of phenylacrylamide derivatives and preparation method and purposes thereof, belong to organic synthesis chemistry and pesticide technical field.Phenylacrylamide derivatives are prepared by condensation reaction from cinnamic acid or its derivatives and benzimidazole derivatives.Biological activity test shows that the compounds exhibit different degrees of inhibitory activity on rice sheath blight pathogen, barley root rot pathogen, wheat scab pathogen and brassica rapa sclerotinia pathogen, and can be used for preparing fungicide for preventing and treating agricultural plant diseases.

The application belongs to the technical field of genetic engineering, and particularly relates to a rice gene OsUSP23 and application of the encoded protein in regulation of disease resistance of rice. Previous studies have found that OsUSP23, as a protein containing a USP domain, is significantly up-regulated when Magnaporthe oryzae invades, which proves that it may be involved in the interaction between rice and Magnaporthe oryzae; after cultivating overexpression OsUSP23 -OX plants, it is found that the disease is reduced and the fungal biomass is reduced, which indicates that the rice significantly enhances the resistance to Magnaporthe oryzae and Rhizoctonia solani; after cultivating knockout mutants osusp23 of plants, the resistance of rice to Magnaporthe oryzae is reduced, which indicates that the gene OsUSP23 positively regulates the resistance of rice to Magnaporthe oryzae; the application effectively reduces the dependence of rice on pesticides by cultivating OsUSP23 -OX disease-resistant varieties, and provides a potential genetic target point for molecular breeding of rice broad-spectrum disease-resistant varieties.

The invention belongs to the technical field of immune anti-attractants, and particularly relates to an immune anti-attractant containing probenazole and a preparation method of the immune anti-attractant. The immune anti-attractant containing probenazole is prepared from the following raw materials in parts by mass: 10 to 15 parts of probenazole, 0.01 to 0.10 part of sedaxane, 0.01 to 0.10 part of validamycin, 0.1 to 2 parts of a binding agent, 0.1 to 2 parts of a dispersing agent, 0.1 to 2 parts of a wetting agent, 50 to 80 parts of calcium carbonate and 20 to 30 parts of water. The immune anti-attractant containing probenazole disclosed by the invention has a relatively good disease-resistant effect on three diseases of rice damping-off, rice blast and banded sclerotial blight at the same time, and is high in heat storage stability at the same time.

The invention discloses a planting method of disease-resistant and high-temperature-resistant high-quality rice, and relates to the technical field of rice planting. According to the invention, the rice blast-resistant and sheath blight-resistant genes and the high-temperature-resistant target genes are directionally introduced through a molecular marker-assisted breeding technology, and are combined with high-quality variety hybridization and multi-generation screening, so that the target variety which is adaptive to a specific planting area environment and retains high-quality characteristics is screened out, and a foundation is laid for stable and high yield; through combined treatment of seed drying gradient stimulation, composite solution soaking and temperature-controllable germination acceleration, pathogenic bacteria of the seeds are removed, the activity of stress-resistant enzymes and metabolic enzymes is accurately activated, the seed germination rate and the stress resistance of seedlings are improved, and the proportion of weak seedlings to diseased seedlings is reduced; according to regional climate, sowing time is determined, an optimized seedling raising substrate is matched, seedling hardening before transplanting and graded seedling selection and field planting are conducted, the problems that a traditional seedling raising substrate is uneven in fertility, poor in seedling adaptability and uneven in transplanting quality are solved, seedlings are assisted to take roots and grow rapidly, and effective improvement of stress resistance, stable yield, high quality and environmental protection is achieved.

The invention relates to a methylene ester bridge-containing compound as well as a preparation method and a bactericide application thereof. The compound has a structure as shown in a formula (I). The compound disclosed by the invention has broad-spectrum bactericidal activity on various plant fungal diseases, can be used for preventing and treating various plant fungal diseases independently or by being compounded with other medicaments, and particularly has an excellent preventing and treating effect on rice sheath blight disease, cucumber gray mold, wheat scab and sclerotinia rot of colza.

The invention provides indole C3-O functionalized derivatives as well as a preparation method and insecticidal and antibacterial application thereof, and relates to the technical field of pesticide development. The indole C3-O functionalized derivative provided by the invention has a structure of a general formula (1), is prepared through a free radical cyclization reaction catalyzed by N-heterocyclic carbene (NHC), does not need a transition metal catalyst, and efficiently constructs a C3-site oxygen functional group by taking o-nitroalkyne or cis-o-nitrostyrene and aldehyde as raw materials through multi-step series conversion in an inert atmosphere. The method has the advantages of being high in atom economy, good in functional group compatibility, easy and convenient to operate, environmentally friendly and the like. The obtained derivative shows remarkable activity in prevention and treatment of various agricultural diseases and insect pests such as rice sheath blight disease, aflatoxin and brown planthopper, can be prepared into various pesticide preparations, has the characteristics of broad spectrum, high efficiency and low toxicity, and is suitable for development of green pesticides.

This invention discloses a soybean lecithin-based microbial agent for disease prevention and root promotion, its preparation method, and its application, belonging to the field of microbial technology. The agent comprises a microbial ensemble, modified enzymatically hydrolyzed soybean lecithin, a carrier, and auxiliary components. This invention utilizes the synergistic effect of modified enzymatically hydrolyzed soybean lecithin and the microbial ensemble. The modified enzymatically hydrolyzed soybean lecithin undergoes pretreatment, stepwise low-temperature treatment, enzymatic hydrolysis, and enzyme inactivation and purification steps, improving its quality and performance. This enhances the colonization rate of the strain in the rhizosphere, improving not only disease prevention and root promotion effects but also improving the soil microecological environment, creating favorable growth conditions for plant roots, and further enhancing the disease prevention and root promotion effects of the agent. The agent of this invention significantly reduces the incidence of wheat sheath blight, reduces the use of chemical pesticides, and can also be applied to the cultivation of other crops, playing a role in the prevention and control of various plant diseases and promoting root growth.