25 results about "Soybean rust" patented technology

The invention discloses a plant immune induced resistance protein PpAE4 and application thereof, and the protein can induce plant resistance and can be used as a plant immune activating factor to be applied to the field of prevention and treatment of plant diseases. The amino acid sequence of the protein is as shown in SEQ ID NO: 2. High-concentration protein can be obtained through expression of the engineering strain, the disease resistance of plants to soybean rust germs can be improved when the protein is used for treating the plants, and the protein is low in needed concentration, quick in effect taking and long in acting time. The PpAE4 provides a new way for improving plant disease resistance and preventing and treating plant diseases.

The application discloses a plant immunity elicitor protein PpAE4 and application thereof, the protein can induce plant resistance, and can be applied to the field of plant disease prevention and treatment as a plant immunity activator. The amino acid sequence of the protein is shown as SEQ ID NO:2. High-concentration protein can be obtained by using an engineering strain for expression, and the protein can be used for treating plants to improve the disease resistance of the plants to soybean rust fungi, and the required concentration is low, the effect is quick, and the action time is long. The PpAE4 provides a new way for improving the disease resistance of plants and preventing and treating plant diseases.

The present invention relates to a method for controlling soybean rust, comprising treating the plants or the soil with a fungicidally effective amount of a composition comprising: as active component 1) the compound (I) methyl (2Z)-3-methoxy-2-[(4-methylbiphenyl-3-yl)oxy]prop-2- enoate) and as active component 2) compound (II) which is selected from the group consisting of as active component 2) compound (II) which is selected from the group consisting of man- cozeb (II-1), metiram (II-2), chlorothalonil (II-3) and the agriculturally acceptable salts thereof.

The invention relates to the technical field of pesticides, in particular to an acrylate compound containing a biphenyl structure as well as a preparation method and application of the acrylate compound. The acrylate compound containing the biphenyl structure is a compound as shown in a formula I, or a stereoisomer, a tautomer, an isotope derivative and a pesticide acceptable salt thereof. The acrylate compound containing the biphenyl structure has excellent inhibitory activity on plant pathogenic fungi, especially basidiomycota, ascomycomycota and deuteromycota pathogenic fungi, and can be used for preventing and treating plant diseases generated by the pathogenic fungi in the fields of agriculture or forestry and the like; the bactericidal composition has very good effect and selectivity on prevention and treatment of wheat powdery mildew, soybean rust, corn rust, peach brown rot, wheat sharp eyespot, rice sheath blight disease or apple ring rot, and has outstanding crop safety on crops.

The invention discloses a double-stranded RNA-nano material composite carrier and application thereof in prevention and treatment of soybean rust. A fungus extracellular membrane protein PpAFF gene of the soybean rust pathogen is taken as a target, a transcript of the fungus extracellular membrane protein PpAFF gene is taken as a template to synthesize double-stranded RNA, and the double-stranded RNA is sprayed on the surfaces of soybean leaves, so that the PpAFF gene of the soybean rust pathogen can be silenced, and the symptom of the soybean rust disease can be effectively relieved. The base sequence of the gene is as shown in SEQ ID NO: 1. The synthesized nano material MNB can inhibit germination of soybean rust uredospores, stimulate immunoreactions of various plants such as soybeans, wheat, rice and hot peppers, and improve the resistance of crops to pathogenic bacteria. The prevention and control method of spraying the MNB-dsPpAFF compound on the plant surface is green and safe, the prevention and control effect is remarkable, and a very potential solution is provided for prevention and control of important crop fungal diseases such as soybean rust and rice blast.

The invention relates to a biocontrol inoculant composition and application thereof.The biocontrol inoculant composition comprises bacillus subtilis z373 and bacillus cereus z266, the total viable bacterium concentration of the biocontrol inoculant composition is 4 * 10 < 7 >-8 * 10 < 7 > CFU / mL, the viable bacterium number ratio of the bacillus subtilis to the bacillus cereus is (1: 10)-(10: 1), and the biocontrol inoculant composition is stable in soybean rust prevention and treatment effect and low in cost. The control effect is greater than 90%; the soybean antibacterial agent has excellent antibacterial performance, can promote soybean growth, is non-toxic and safe to people and livestock, is environment-friendly, and has important application significance and value.

The invention belongs to the technical field of biology, and discloses a plant immune induced resistance protein PpCAE101 and application thereof. The amino acid sequence of the protein is shown as SEQ ID NO: 2, and the protein can induce plant resistance and can be used as a plant immune activating factor to be applied to the field of prevention and treatment of plant diseases. When the protein is used for treating plants, the disease resistance of the plants to the soybean rust germs can be improved, the required concentration is low, the effect is quick, and the action time is long. The protein can activate the immune system of the plant, and provides a new way for improving the plant resistance, so that the protein has a wide application prospect in agricultural production.

The present application relates to the technical field of agrochemicals and fungicides, and discloses a benzoic acid sulfide compound containing a trifluoromethyl oxadiazole fragment as well as a preparation method and application thereof.The compound has a structure shown in formula I, wherein R 1 ‑R 5 Each is independently selected from one of a 1-6-membered heterocyclic ring, an alkyl group containing 1-12 carbon atoms, an alkoxy group containing 1-12 carbon atoms, hydrogen, halogen, amino, nitro, cyano, trifluoromethyl, and trifluoromethoxy.In the presence of a first solvent and a first base, 4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]benzoyl chloride is subjected to a condensation reaction with a compound of formula II to obtain the benzoic acid sulfide compound containing a trifluoromethyl oxadiazole fragment.The benzoic acid sulfide compound containing a trifluoromethyl oxadiazole fragment provided by the present application has a novel structure, and the bioactivity determination result shows that the compound has good fungicidal activity on soybean rust and wheat scab, and is suitable for wide range of popularization and application.

The present invention relates to a method for controlling soybean rust, comprising treating the plants or the soil with a fungicidally effective amount of a composition comprising: as active component 1) the compound (I) methyl (2Z)-3-methoxy-2-[(4-methylbiphenyl-3-yl)oxy]prop-2- enoate) and as active component 2) compound (II) which is selected from the group consisting of azoxystrobin (II-1), picoxystrobin (II-2), trifloxystrobin (II-3), metominostrobin (II-4) and the ag- riculturally acceptable salts thereof.

The present application relates to a kind of biocontrol agent composition and its application, and the effective component of the biocontrol agent composition includes bacillus subtilis z373 and bacillus cereus z266, and the total viable bacterial concentration is 4×10 7 ~8×10 7 CFU / mLWherein, the viable bacterial quantity ratio of bacillus subtilis and bacillus cereus is (1:10)~(10:1), the biocontrol agent composition is stable to soybean rust prevention and control effect, and the prevention and control effect is greater than 90%;It has excellent antibacterial performance and can promote soybean growth, and is safe to human and livestock, and friendly to environment, has important application significance and value.

The invention discloses a composition containing flufenoxadiazam and tridemorph, and a co-toxicity test result shows that flufenoxadiazam and tridemorph are compounded in a certain mass part ratio range, so that the composition has a synergistic effect on soybean rust diseases, and particularly, the synergistic effect is remarkable when the mass part ratio of flufenoxadiazam to tridemorph is (1: 10)-(20: 1). Compared with a single component, the activity of the flufenoxadiazam and tridemorph composition is higher than that of the single component, and the flufenoxadiazam and tridemorph composition can obviously improve the control effect, reduce the pesticide consumption, expand the bactericidal spectrum and improve the bactericidal efficiency by compounding the flufenoxadiazam and tridemorph. Meanwhile, the control workload and the pesticide cost of agricultural production are also reduced.

The invention provides application of soybean rust fungus elicitor PpE1 protein in inducing plant immune response and / or improving plant resistance, and belongs to the technical field of elicitor protein application. The amino acid sequence of the soybean rust fungus elicitor PpE1 protein is as shown in SEQ ID NO. 2. The invention discovers the application of the soybean rust fungus protein elicitor PpE1 in inducing plant immune response and improving plant resistance for the first time. The PpE1 can cause the hypersensitive reaction of the nicotiana benthamiana and induce active oxygen in the nicotiana benthamiana to burst out; the protein can induce immune response of soybeans, including burst of active oxygen, activation of MAPK and expression of immune genes, and promote resistance of the soybeans to rust fungi; the heterologous expression of the PpE1 can also improve the resistance of the soybean to rust fungi. The invention provides a new way for improving the disease resistance of plants, and has a wide application prospect in agricultural production.

This invention discloses a double-stranded RNA-nanomaterial composite carrier and its application in the control of soybean rust. Using the PpAFF gene, a fungal extracellular membrane protein of soybean rust fungus, as a target, and its transcript as a template, double-stranded RNA is synthesized and sprayed onto the surface of soybean leaves. This silences the PpAFF gene, effectively alleviating soybean rust symptoms. The base sequence of this gene is shown in SEQ ID NO:1. The synthesized nanomaterial MNB can inhibit the germination of urediniospores of soybean rust fungus and stimulate immune responses in various plants such as soybean, wheat, rice, and pepper, improving crop resistance to the pathogen. The method of spraying the MNB-dsPpAFF complex onto the plant surface is green, safe, and highly effective. This invention provides a highly promising solution for the control of fungal diseases in important crops such as soybean rust and rice blast.

The application relates to the field of pesticide bactericides, and discloses a trifluoromethyl-containing nicotinamide compound as shown in formula I and formula II, a preparation method and application thereof. The compound is obtained through further structural optimization on the basis of the prior art. The trifluoromethyl-containing nicotinamide compound as shown in formula I and formula II disclosed by the application has low raw material cost, high synthesis yield, and shows more ideal prevention effect on crop diseases such as rice sheath blight, rapeseed sclerotinia disease and soybean rust.

The application discloses a bactericidal composition containing thiomethoxam and pyridylazole amide, and the effective components are thiomethoxam and pyridylazole amide, the mass ratio of thiomethoxam to pyridylazole amide is 1-50:50-1, and the application also discloses application of the bactericidal composition in prevention and treatment of soybean rust, wheat powdery mildew and rice sheath blight. The two effective components are reasonably compounded, the prevention and treatment effect on the soybean rust, the wheat powdery mildew and the rice sheath blight is effectively improved, the synergistic effect is obvious relative to the use of a single agent, and the use amount and the use cost of the pesticide are obviously reduced.

The present invention relates to methods and compositions for identifying, selecting, and / or producing a soybean plant or germplasm resistant to Asian soybean rust using markers, genes and chromosomal intervals derived from Glycine max strain SX6907. A soybean plant or germplasm that has been identified, selected, and / or produced by any of the methods of the present invention is also provided. Asian soybean rust resistant soybean seeds, plants, and germplasms are also provided.

The invention provides a pyrazole compound and a preparation method and application thereof.The pyrazole compound has the structure shown in the formula I. The pyrazole compound has a remarkable effect on prevention and treatment of diseases in agriculture and forestry, especially has a good prevention and treatment effect on cucumber powdery mildew, cucumber downy mildew, soybean rust and rice blast, and is wide in application prospect.

The invention discloses an oxadiazole compound with a novel structure. The oxadiazole compound is shown as a general formula I, wherein each substituent group in the formula is defined in the specification. The compound as shown in the general formula I has excellent bactericidal activity, and has a good control effect on various diseases, especially soybean rust, at a relatively low dosage; therefore, the invention comprises the application of the compound as shown in the general formula I as a bactericide in agriculture and other fields.

The present invention discloses a novel oxadiazole compound, as shown in general formula I: #imgabs0#. The compound of general formula I has excellent fungicidal activity and has a good control effect on plant fungal diseases, especially soybean rust. The present invention includes the use of the compound of general formula I as a fungicide in agriculture and other fields.

The invention relates to the field of biotechnology engineering, in particular to an Asian soybean rust resistance gene and application thereof. The resistance gene is RppGM12H3 or RppGM12H4 and has the characteristics of low cytotoxicity and the like, and the obtained transgenic material has an efficient and broad-spectrum control effect on different puccinia puccinia strains.

The present invention discloses a novel oxadiazole compound, as shown in general formula I: #imgabs0#. The compound of general formula I has excellent fungicidal activity and has a good control effect on plant fungal diseases, especially soybean rust. The present invention includes the use of the compound of general formula I as a fungicide in agriculture and other fields.

The application discloses genes GmPMI1 and GmPMI1R for improving plant resistance to soybean blight and application thereof. The nucleotide sequences of the genes GmPMI1 and GmPMI1R are shown in SEQ ID NO. 1 or SEQ ID NO. 3 respectively. The protein encoded by the genes GmPMI1 and GmPMI1R in the application exerts an anti-disease effect by being secreted to the extracellular, thereby enhancing the plant disease resistance, especially the disease resistance to the Pythium, and the plant disease resistance to the Pythium can be significantly enhanced. The application can be applied to crop breeding and disease resistance improvement, and is expected to improve the plant disease resistance to the blight, and further promote the reduction of pesticide and fertilizer application and the increase of efficiency.

The present invention provides a method for controlling a soybean rust fungus having an amino acid substitution of F129L on mitochondrial cytochrome b protein. According to the present invention, a compound represented by formula (I) [wherein R1 represents a C1-C3 chain hydrocarbon group and so on, n is 0, 1, 2 or 3, and when is 2 or 3, a plural of R2 may be identical to or different from each other, and R2 represents a C1-C3 chain hydrocarbon group and so on, Q represents a group represented by Q1 (where • represents a binding site to a benzene ring) and so on, L1 represents CH2 or an oxygen atom, and E represents a C1-C6 alkyl group and so on.] can use to control a soybean rust fungus having an amino acid substitution of F129L on mitochondrial cytochrome b protein.

Disclosed in the present invention is an oxadiazole compound having a novel structure, as represented by general formula I. See the description for the definition of each substituent in the formula. The compound of general formula I has excellent fungicidal activity, and has a good control effect on various diseases, especially on soybean rust, at low doses. As a result, the present invention covers the use of the compound of general formula I as a fungicide in agriculture and other fields.

This invention discloses a difluoromethylthiazolamide compound containing diphenyl ether, as shown in Formula I and / or Formula II, and its application in controlling plant diseases such as rice sheath blight and soybean rust. The compounds of this invention are optimized compounds obtained through further structural optimization and activity screening based on previous laboratory research. The difluoromethylthiazolamide compounds containing diphenyl ether, as shown in Formula I and / or Formula II, disclosed in this invention, exhibit outstanding control effects against various diseases such as rice sheath blight, soybean rust, and rapeseed sclerotinia stem rot.