2706results about How to "Increase resistance" patented technology

The invention discloses a jet aerator with low energy consumption and high oxygenation efficiency. The jet aerator comprises a Venturi tube and a quick-pass rhombic tube which are of a split structure, multi-rod supports are installed on the inner wall faces of round pipes at the two ends of the venturi pipe and support tail hook bionic stirring blades, a double-end reverse screw is arranged in the venturi pipe, one end of a quick-pass rhombic pipe is connected with the venturi pipe, the other end of the quick-pass rhombic pipe extends into an air suction chamber, and the upper portion of the air suction chamber is connected with an air supply pipe. The end, away from the Venturi tube, of the air suction chamber is connected with a mixing cavity tube, the mixing cavity tube is connected with the front end of a throat tube, a divergent wing-like blade set and a special-shaped taper hole plate are arranged in the mixing cavity tube, and a grid tray scattering nozzle is arranged in the throat tube; compared with a circular pipeline, the quick-passing rhombic pipe can provide higher water conveying capacity; the gradual change spiral body design on the double-end reverse screw can generate vortexes and turbulent flows, the turbulent flow intensity of water flow is improved, the mixing and diffusion capacity of the water flow is improved, and therefore the oxygenation efficiency is improved.

The invention discloses a server power supply system and a server, relates to the field of server power supply, and is used for solving the problem of high energy loss in a traditional alternating current power supply architecture. The power conversion module converts the power supply into high-voltage direct current with the voltage not lower than the preset voltage, the high-voltage direct current is transmitted to the power distribution board of the server through the bus copper bar, and the bus copper bar serves as a transmission medium of the high-voltage direct current and has low resistance and high current-carrying capacity. Extra loss caused by electromagnetic induction and a capacitance effect in alternating current transmission is avoided; high-voltage direct current is directly input to the power distribution board, so that multiple times of conversion in an intermediate link are avoided, and energy loss in the conversion process is reduced; and the power distribution board directly converts the high-voltage direct current into the voltage required by the load, so that the loss of multi-stage conversion in the traditional architecture is reduced. According to the invention, the power transmission efficiency is improved, the energy loss is reduced, and the requirement of a modern high-computing-power and high-energy-consumption server for efficient power supply is met.

The invention relates to the technical field of electric power data acquisition with an encryption function, and discloses an electric power data acquisition terminal with an encryption function and a method. By combining the environment data and the equipment state, the encryption process enhances the security and adaptability of data encryption. Environment and equipment data input ensures that encryption results are different, and potential safety hazards caused by static data sources are avoided. The data are reasonably combined through a seed generation formula, it is ensured that the seeds have enough randomness, and the brute force cracking risk is reduced. The key generation strategy generates a unique key through a seed, so that the attack resistance of the system is improved. The key matrix and random number generation strategy improves the unpredictability of the encryption algorithm. And dynamically updating the encryption matrix to prevent the encryption matrix from being cracked in long-term use. In the whole process, comprehensive protection of the data in acquisition, encryption and transmission is ensured, and the data is effectively prevented from being tampered or stolen.

The invention relates to the technical field of window opener chains, in particular to a window opener chain strength testing device based on electric window opener production and a testing method.The window opener chain strength testing device comprises a frame and a testing window opener, a simulation window is arranged on one side of the frame, and the top of the simulation window is fixedly connected with a rotating shaft rotationally connected with the frame; a window opener chain is mounted in the test window opener, one end of the window opener chain is fixedly connected with the simulation window through a connecting seat, a mounting cylinder is arranged in the frame, the outer surface of the mounting cylinder is in sliding connection with a rotating ring, one end of the rotating ring is fixedly connected with a pull handle rotationally connected with the simulation window, and the other end of the rotating ring is fixedly connected with the test window opener. A mounting cylinder is arranged in the frame, a resistance assembly is arranged in the mounting cylinder, a straight plate is arranged on one side of the frame, a pressure applying plate for applying resistance to the simulation window is arranged at the bottom of the straight plate, sliding seats are slidably connected to the two ends of the frame, and pressure assemblies acting on the straight plate are arranged on one sides of the two sliding seats.

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

The invention relates to the technical field of valves, and discloses a self-adaptive flow proportion stop valve which comprises a valve body, a valve rod, a valve rod, a valve rod and a valve rod. The liquid inlet pipe is used for introducing fluid into the stop valve, and the liquid inlet pipe is fixedly connected to the left side of the valve body; and the liquid outlet pipe is used for discharging the fluid from the stop valve. According to the stop valve self-adaptive to the flow proportion, the cutting mechanism is arranged, when liquid passes through the impeller, the impeller is driven to rotate clockwise, and the cutting column rotates reversely relative to the impeller, so that pressure fluctuation in the liquid flowing process can be effectively relieved, the water hammer effect or impact caused by sudden pressure change is reduced, and other assemblies in a system are protected; particularly, when the liquid flow is large or the flow speed is high, the rotating action of the cutting column rotating reversely relative to the impeller is beneficial to generating a resistance mechanism in the liquid flowing process, and the reverse power action can consume part of kinetic energy of the liquid, so that sudden pressure fluctuation possibly generated in the fluid is relieved.

The invention belongs to the field of biological agriculture, and particularly relates to a wheat negative regulatory factor TaEDR2 and application thereof. The amino acid sequence of the wheat negative regulatory factor encoding protein provided by the invention is as shown in SEQ ID NO: 1, and the nucleotide sequence of the wheat negative regulatory factor TaEDR2 is as shown in SEQ ID NO: 2. According to the invention, gene editing is carried out in a Fielder wild type material, and a TaEDR2 gene editing plant which shows resistance to stripe rust CYR32 is obtained. It is determined that the TaEDR2 gene plays a negative regulation role in wheat stripe rust resistance, a stripe rust resistant wheat material is created by using the negative regulation factor, and new gene and germplasm resources are provided for wheat stripe rust resistant breeding.

The invention discloses a device for slowing down sloshing of a liquid tank. The device comprises the liquid tank, a linear guide rail sliding mechanism, a combined swash plate device and an automatic springback swash plate device. According to the device for slowing down the sloshing of the liquid tank, a double-sloshing-reduction method is adopted, firstly, the amplitude of the sloshing wave height of the free liquid surface and the kinetic energy of liquid sloshing are weakened in the middle of the liquid tank by means of the automatic rebound swash plate device; liquid sloshing energy is dissipated by means of holes of the combined swash plate device for liquid to enter and exit from the bulkhead, direct action of free surface movement of the liquid on the side wall of the liquid tank is hindered, impact load of liquid sloshing on the bulkhead is reduced, and the phenomena of top rushing and jet flow caused by climbing along the bulkhead are inhibited. Meanwhile, the position of the combined oscillation suppression plate device can be adjusted by means of the linear guide rail sliding mechanism, the energy of liquid oscillation can be dissipated to the maximum extent, meanwhile, the inherent frequency of the liquid tank is changed, resonance can be effectively avoided, and therefore the wave absorption and stabilization effects of the oscillation suppression device can be better exerted.

The invention provides a multi-cavity scramjet engine combustion chamber and a control method thereof. The combustion chamber is simple in structure, capable of adapting to different equivalence ratio ranges and different flight heights, low in resistance, high in combustion performance, low in thermal load of the wall face of the combustion chamber, convenient to maintain and capable of facilitating aircraft-engine integrated design. The combustion chamber comprises an isolation section, a first concave cavity group, a second concave cavity group, a third concave cavity group, an injection module and a combustion chamber expansion section, each concave cavity group is provided with two concave cavities which are oppositely arranged up and down; the isolation section is a first square tube and is connected with the first concave cavity group; the first concave cavity group is connected with the second group of concave cavities through a second square tube; the second group of concave cavities is connected with a third concave cavity group through a third square pipe; a combustion chamber expansion section is connected behind the third concave cavity group; the injection unit comprises a front injection device and a rear injection device; front injection devices are oppositely arranged on the upper wall surface and the lower wall surface of the second square pipe; rear injection devices are oppositely arranged on the upper and lower wall surfaces of the third square pipe.

The invention discloses an endophytic fungus LH001 and application thereof, and belongs to the technical field of plant disease control. The endophytic fungus LH001 is separated from the root system of wild rice, is classified and named as Pseudophialophora sp.LH001, is preserved in the China Center for Type Culture Collection (CCTCC), and has the preservation number of CCTCC NO: M 20241751. The endophytic fungus LH001 strain is co-cultured with rice and colonized at the root of a rice seedling, so that leaf harm caused by magnaporthe oryzae can be reduced, the disease resistance of the rice to leaf blast in the seedling stage is enhanced, and the prevention and treatment effect reaches 94.05%. Therefore, the endophytic fungus LH001 has great value in popularization and application of the biological control effect on the rice blast in the agricultural field.

The invention discloses a gene for enhancing gray mold resistance of strawberry fruits and application of the gene, and belongs to the technical field of gene engineering. The nucleotide sequence of the gene disclosed by the invention is as shown in SEQ ID NO.7. The invention provides the gene for enhancing the gray mold resistance of the strawberry fruit, the gene is introduced into the strawberry body to realize stable overexpression, the gray mold resistance of the strawberry fruit is obviously enhanced, the gene has no influence on the quality of the strawberry fruit, and a new gene resource and a theoretical support are provided for breeding of strawberry varieties with high gray mold resistance.

The invention discloses application of an Afa04Dg76000 gene in resistance of an oat herbicide. The Afa04Dg76000 gene is knocked down to reduce the resistance of the oat herbicide, and the Afa04Dg76000 gene is overexpressed to improve the resistance of the oat herbicide; the nucleotide sequence of the Afa04Dg76000 gene is as shown in SEQ ID NO. 1, and the amino acid sequence of the Afa04Dg76000 gene is as shown in SEQ ID NO. 2. According to the application of the Afa04Dg76000 gene in the herbicide resistance of the oats, a gene knock-down and overexpression strain of the Afa04Dg76000 is constructed through a TRV virus-mediated gene silencing (VIGS) system and a genetic transformation system of the oats, the herbicide resistance function of the Afa04Dg76000 is proved, and a new target is provided for germplasm improvement of cultivated oats.

The invention discloses a micro-channel jet reactor. The micro-channel jet reactor comprises a sample introduction unit, a main mixing unit and a reaction unit which are sequentially communicated, the main mixing unit comprises a first inner pipe and a first outer pipe arranged outside the first inner pipe in a sleeving manner; a first annular space is formed between the first inner pipe and the first outer pipe; the sample introduction unit is communicated with the first inner pipe; a second sample inlet is formed in the first annular space, and a plurality of through holes are formed in the first inner pipe; the reaction unit comprises a second inner pipe and a second outer pipe arranged outside the second inner pipe in a sleeving manner; a second annular space is formed between the second inner pipe and the second outer pipe; the first inner pipe is communicated with the second inner pipe; during use, condensate is arranged in the second annular space. The reactor can effectively improve the mixing uniformity degree of reaction liquid, meanwhile, the reaction temperature is controlled, and the reaction rate and selectivity are ensured.

The invention provides a high-resistance coaxial shunt, which comprises an outer conductor, a central shaft conductor and a resistor body, and is characterized in that the outer conductor, the resistor body and the central shaft conductor are of cylindrical structures and are coaxially arranged from outside to inside; the resistor body is of a laminated structure, and the conductive length of the resistor body is larger than the physical length of the resistor body in the laminated state. According to the high-resistance coaxial shunt provided by the invention, the resistor body is arranged to be of the laminated structure, so that the conductive length of the resistor body can be effectively prolonged, and the resistance value is increased under the condition that the conductive area and the physical length of the resistor body are not changed. The invention also provides a current detection system.

The invention belongs to the technical field of molecular markers, and particularly relates to an anti-disease gene of corn grain rot, a molecular marker and application. The nucleotide sequence of the gene ZmRLK2 is as shown in SEQ ID NO. 1. According to the invention, the corn grain rot resistance candidate gene ZmRLK2 is obtained by carrying out correlation analysis on a whole genome of the corn grain rot and screening SNP marker sites. Sequence comparison of the gene finds that two allele types exist in a natural material, and molecular markers are developed for variation of the allele. The method is not influenced by tissue types, development stages, environmental factors and the like, the molecular marker technology is simple, rapid and easy to automation, the inoculation and identification cost is greatly saved, and the method can be used for corn molecular breeding.

The invention relates to the technical field of gene engineering, in particular to a soybean disease-resistant RING-H2 type zinc finger protein gene GmRHF1 and application thereof.According to the technology, the GmRHF1 genes are cloned in soybean varieties Xu bean 14 and Shangshan black beans respectively, and then the expression quantity difference of the genes in different tissues and the expression quantity change trend of the genes under SMV treatment are analyzed through fluorescent quantitative PCR; meanwhile, the anti-SMV function of the GmRHF1 is verified in effective plant silencing and transgenic overexpression by adopting a virus-induced gene transient silencing technology and a soybean stable genetic transformation experiment. Finally, the interaction protein of the GmRHF1 is screened and verified through yeast cDNA library screening, yeast point verification and luciferase complementary test screening, and the biological significance of interaction of the GmRHF1 and the GmClpP6 on soybean SMV resistance is defined. In conclusion, the result of the invention can provide an effective gene resource for cultivating a new variety (line) of soybean with high SMV resistance.

The invention discloses a CsbHLH118 gene and application of the CsbHLH118 gene in regulation of citrus sour rot, and belongs to the technical field of gene engineering. The nucleotide sequence of the transcription factor CsbHLH118 is shown as SEQ ID NO.1. The transcription factor CsbHLH118 provided by the invention has the advantages that the occurrence of the sour rot of the navel oranges can be delayed by transient overexpression of the CsbHLH118, the resistance to sour rot bacteria is lost by transient silence of the CsbHLH118, and the CsbHLH118 plays a positive regulation role in the resistance to the postharvest sour rot of the navel oranges. The invention provides a target gene for developing effective bactericides.

The invention discloses an application of a soybean GmCLO1 coding gene in regulating the resistance of soybeans to soybean mosaic virus diseases. The invention discloses application of the soybean GmCLO1 gene as shown in SEQ ID NO.1 in genetic engineering modification of soybean mosaic virus resistance. Overexpression of the gene can significantly improve the resistance of soybeans to soybean mosaic virus diseases, and gene editing knockout of the gene can significantly reduce the resistance of soybeans to soybean mosaic virus diseases. The soybean coding gene GmCLO1 disclosed by the invention can be transformed into soybeans through genetic engineering, and the resistance of the soybeans to the soybean mosaic virus diseases is finally regulated and controlled.

The invention relates to the technical field of livestock and poultry transport vehicles, in particular to a livestock and poultry transport vehicle with a lifting structure. Comprising a carriage which is provided with a lifting structure; the air inlet pipe is communicated with the carriage, and a mounting frame is fixedly connected into the air inlet pipe; the rotating shell is rotationally connected to the mounting frame, and the compartment is provided with a power generation device which is in transmission fit with the rotating shell; and the multiple blades all penetrate through the rotating shell and are rotationally connected to the rotating shell. The air inlet pipe is arranged on the carriage, airflow enters the carriage when the transport vehicle runs, so that the interior of the carriage is cooled, the angles of the blades are adjusted according to the temperature in the carriage, the situation that the airflow speed is too high when the air temperature is low, and then the temperature in the carriage is too low is avoided; meanwhile, by arranging the power generation device, wind current drives the rotating shell to rotate through the blades, so that the rotating shell drives the power generation device to generate power.

The invention relates to the technical field of optical fiber connectors, in particular to an optical fiber switching device which comprises an adapter and a connecting mechanism. The adapter is located between the two plug assemblies, and a fixed tube is fixedly arranged in the adapter; the plug assembly comprises a housing and an insertion core. The connecting mechanisms are symmetrically arranged in the fixing pipe in pairs and comprise concentric assemblies and transmission assemblies. The concentric assembly comprises at least three discs which are sequentially distributed in an attached mode in the axial direction of the fixing pipe, and each disc is provided with a threading hole. Before the plug assembly is plugged, the plurality of threading holes of the concentric assembly are plugged to prevent dust from entering, and when an insertion core of the plug assembly moves into the fixed pipe, the disc is pushed to move through the transmission assembly, so that the plurality of threading holes are mutually overlapped and opened, the insertion core is allowed to pass through, and connection is completed; the insertion core is limited and fixed by utilizing the mutual dislocation of the plurality of threading holes, so that the insertion core and the fixed tube are kept coaxial, the insertion cores of the two plug assemblies can be connected in a concentric state, and the optical loss at the joint is reduced.

The invention relates to the technical field of biology, and discloses application of a substance for inhibiting expression of an OsPP18 gene to improvement of rice blast resistance, and the OsPP18 gene is a gene for coding OsPP18 protein. An inoculation experiment shows that compared with receptor rice, the resistance of an OsPP18 knockout rice strain to rice blast is enhanced, and the resistance of an OsPP18 overexpression rice strain to rice blast is weakened, so that the OsPP18 is a gene related to plant disease resistance. The method disclosed by the invention is simple to operate and low in cost, greatly accelerates the breeding process, and has a wide application prospect.

The invention relates to the technical field of composite boards, and discloses a scratch-resistant PE composite board and a preparation method thereof. The PE composite board is prepared by taking high-molecular-weight polyethylene, low-density polyethylene and medium-density polyethylene as main raw materials, adding functional aids such as a reinforcing filler, a modified polyurethane elastomer and molybdenum disulfide, and carrying out processes such as banburying, hot press molding and cold press molding. Due to the addition of the reinforcing filler, the mechanical property and the surface hardness of the matrix are improved, and the scratch resistance is further improved; the modified polyurethane elastomer is introduced into the matrix as a toughening component, so that not only is the toughness of the matrix improved, but also the scratch resistance of the matrix is improved; due to introduction of molybdenum disulfide, the unique layered structure of molybdenum disulfide can be utilized, the friction coefficient of the matrix is reduced, and then the scratch resistance of the matrix is improved.

The invention discloses pediococcus acidilactici JW-015 as well as a selenium-rich microbial inoculum and application thereof, and belongs to the technical field of biology. According to the invention, a strain of pediococcus JW-015 which not only can be enriched with inorganic selenium, but also has oxidation resistance and ethanol tolerance is screened out, and the pediococcus JW-015 has huge potential and application value in the aspect of developing hangover-alleviating related probiotic health-care foods and medicines.

The invention belongs to the technical field of plant genetic engineering, and particularly relates to a rice cold tolerance negative regulation gene OsbHLH090 and application thereof. The nucleotide sequence of the gene is shown as a sequence table SEQ ID NO: 1, and the coded amino acid sequence is shown as a sequence table SEQ ID NO: 2. According to the invention, the rice OsbHLH090 gene is edited by using a CRISPR-Cas9 gene editing technology, and the gene is knocked out to obtain the cold-sensitive rice mutant. The method comprises the following steps: cloning OsbHLH090CDS into a pC1390U vector, and constructing an overexpression vector; under cold stress, the survival rate of the mutant is higher than that of a wild type, and the survival rate of overexpressed transgenic rice is lower than that of the wild type, so that the OsbHLH090 gene is an important negative regulation factor in a rice cold-tolerant approach. The invention provides a new resource for cold-resistant breeding of plants and rice.

The invention relates to a method and application for positively regulating the defense response of plants to pests, and the method comprises the following steps: the plants are contacted with small RNA (Ribonucleic Acid) to enhance the resistance of the plants to the pests, and the small RNA comprises plant endogenous 22nt-siRNA. Researches find that the endogenous 22nt-siRNA of the plant can improve the resistance of the plant to phytophagous insects, and the 22nt-siRNA can specifically target a field phytophagous insect gene while enhancing the resistance of the plant, has the biological prevention and control advantage of no environmental pollution, and can be used for preventing and treating the phytophagous insects. Therefore, the method plays an important role in forward regulation of defense response of plants to pests and prevention and control of plant pests.

The invention provides a plasmodiophora brassicae effector Pb78, and the nucleotide sequence of the plasmodiophora brassicae effector Pb78 is shown The invention also provides an application of host-induced silencing of the plasmodiophora brassicae effector Pb78 in prevention and treatment of plasmodiophora brassicae infection, and also provides a plasmodiophora brassicae prevention and treatment liquid and a preparation method of the plasmodiophora brassicae prevention and treatment liquid. The invention verifies that host-induced plasmodiophora brassicae effector Pb78 silencing can effectively inhibit plasmodiophora brassicae infection and symptom formation of cruciferae plants. The preparation and the treatment method disclosed by the invention are suitable for various cruciferae crops and vegetables which can be infected by plasmodiophora brassicae, and are wider in applicability; the inhibition efficiency on clubroot is higher than that of medicament treatment, and the compound has the advantage of no pesticide residue and is high in safety; due to the adoption of a seed treatment mode, the method is particularly suitable for preventing and treating clubroot susceptible seedlings.

The invention discloses application of brown planthopper NlCP6 protein and a coding gene thereof in regulation and control of brown planthopper resistance of plants, and relates to the technical field of genetic engineering prevention and control of rice brown planthopper. By inhibiting the expression of the coding gene of the NlCP6 protein in the brown planthopper, the growth and development of the brown planthopper can be obviously inhibited; aiming at overexpression of the nilaparvata lugens NlCP6 gene, an overexpression vector of the gene is constructed and transferred into a rice plant, so that the nilaparvata lugens resistance of the plant is greatly improved, and the weight gain and survival rate of the nilaparvata lugens eating the transgenic plant are remarkably reduced. The application method provided by the invention shows that the nilaparvata lugens NlCP6 gene plays a very important role in improving the resistance of rice nilaparvata lugens and inhibiting the growth and development of nilaparvata lugens, and has a wide application prospect; the method has great application value for reducing pesticide use, maintaining ecological balance and realizing sustainable development.

The invention relates to the technical field of thickening agents, in particular to a thickening agent for fracturing fluid and a preparation method of the thickening agent, the thickening agent comprises a liquid material and a solid material, the mass ratio of the liquid material to the solid material is 1: (2.2-2.4), and the liquid material is composed of deionized water and N-methyl pyrrolidone. According to the preparation method disclosed by the invention, the konjaku flour is added in the preparation of the thickening agent, and after the konjaku flour is subjected to mixing reaction and curing treatment, amino functional groups in konjaku molecules can be subjected to cross-linking reaction with aldehyde groups of glutaraldehyde, so that water molecules are wrapped in a cross-linked network structure, and the internal friction force during fluid flowing is increased; and hydroxyl groups on molecular chains of the konjac glucomannan and aldehyde groups of glutaraldehyde are subjected to a condensation reaction to form covalent bonds, so that a cross-linking effect is achieved, a stable chemical cross-linked network structure is formed among the molecular chains of the konjac glucomannan, and the cross-linking performance of the thickening agent is effectively improved.

The electroplating device comprises a membrane frame and an ionic membrane, the ionic membrane is arranged at the bottom of the membrane frame, the membrane frame comprises a plurality of first spraying holes used for discharging cathode liquid, a first preset included angle is formed between the liquid outlet direction of the first spraying holes and the vertical downward direction, and the first preset included angle is an acute angle. Cathode liquid discharged by the first jet holes downwards scours the ionic membrane, the flowability of a flow field on the lower layer of the cathode cavity is promoted, crystal precipitation is reduced, and voltage rise between an anode and a substrate caused by continuous increase of resistance between the anode and the substrate of the electroplating device is prevented.

The invention belongs to the field of crop genetic breeding, and particularly relates to a rice blast resistant gene OsK8 (Os04g0658700 gene) and application thereof. The invention discloses a rice blast resistance gene OsK8. The nucleotide sequence of the gene is shown as SEQ ID NO: 1. The invention also discloses application of the rice blast-resistant gene OsK8. The OsK8 gene is knocked out from rice, so that the resistance of rice plants to pyricularia oryzae can be effectively enhanced; and the gene Os04g0658700 is overexpressed in the rice, so that the resistance of the rice to the pyricularia grisea is reduced.