1192 results about "Fusarium" patented technology

The invention provides bacillus velezensis NJ157 and application thereof, and relates to the technical field of biological pesticides. The bacillus velezensis NJ157 can resist saline and alkaline, has a good inhibition effect on ralstonia solanacearum, rhizoctonia solanacearum, fusarium moniliforme and phytophthora capsici, and can effectively prevent and treat tomato bacterial wilt, root rot and fruit rot. The bacillus velezensis NJ157 disclosed by the invention also has relatively strong capability of producing protease, cellulase and IAA (Indoleacetic Acid), and has a relatively good growth promoting effect on tomatoes, and a fungicide prepared from the biocontrol bacterium does not cause pollution to the ecological environment in a use process, and is pollution-free. By using the biocontrol bacterium disclosed by the invention, the dosage of other chemical pesticides can be reduced, the prevention and control cost of tomato diseases is reduced, the tomato growth is promoted, and the biocontrol bacterium has a good popularization value.

The invention belongs to the technical field of biochemical engineering and the technical field of bioengineering, and discloses a schizochytrium limacinum engineering strain for producing EPA (eicosapentaenoic acid) by prolonging a desaturation path. Part or all of the extended desaturase genes from thraustochytrium sp. And fusarium sp. And saprolegnia are expressed. According to the invention, extended desaturase genes from various sources are integrated into a schizochytrium limacinum genome, so that a schizochytrium limacinum gene engineering strain efficiently expresses the extended desaturase genes, and a heterologous EPA synthesis path with high synthesis efficiency, short culture period, simple purification method and low cost is provided; a basis is provided for producing grease rich in EPA from schizochytrium limacinum, and the problems of non-sustainability, high cost and the like caused by obtaining EPA from fishes are solved.

The invention discloses a broad-spectrum biocontrol strain water bacillus barren ZG18 and application thereof, and belongs to the technical field of plant disease control, and the broad-spectrum biocontrol strain water bacillus barren ZG18 is characterized in that the water bacillus barren ZG18 is water bacillus barren and is preserved in the China General Microbiological Culture Collection Center, and the preservation number of the water bacillus barren ZG18 is CGMCC (China General Microbiological Culture Collection Center). The preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, China; the preservation date is September 6, 2024; the preservation number is CGMCC (China General Microbiological Culture Collection Center) The biocontrol bacterium strain disclosed by the invention has a relatively strong inhibition effect on pathogenic fusarium sporotrichum, fusarium graminearum, botrytis cinerea, rhizoctonia solani and corticosis cucurbitae, the prevention and treatment effect of the strain ZG18 on tobacco target leaf spot reaches up to 51.34%, the prevention and treatment effect of the strain ZG18 on tobacco damping-off in a pot experiment is 65.91%, and the strain ZG18 has a promoting effect on tobacco growth.

The invention provides a salt-alkali-tolerant endophytic bacillus subtilis strain and application thereof in improvement of saline-alkali soil, and belongs to the technical field of biological bacteria. According to the invention, a salt and alkali tolerant endophytic bacillus strain NXO3 is obtained from stems and leaves of suaeda salsa, and is identified as bacillus subtilis (bacillus subtilis); the strain has the capabilities of dissolving phosphorus, fixing nitrogen and generating indoleacetic acid (IAA) and polyglutamic acid, and has a remarkable inhibition effect on a plurality of plant pathogenic bacteria such as fusarium neosporum, colletotrichum gloeosporioides, fusarium graminearum, fusarium oxysporum and cavity microsporum. The agricultural microbial agent containing 0.3 billion / g of NXO3 is prepared through formula optimization. The bacillus subtilis NXO3 has a remarkable saline-alkaline tolerance function, a plant growth promoting effect and a biocontrol effect on plant diseases, and the emergence rate and the yield of crops in saline-alkaline land can be increased.

The invention relates to the technical field of biological prevention and treatment, in particular to application of streptomyces cancefactiticus FJ-10 in prevention and treatment of corn diseases, a microbial agent and a pharmaceutical composition. The invention provides an application of streptomyces canceostimuli FJ-10 in prevention and treatment of corn diseases. The preservation number of the streptomyces canceostimuli FJ-10 is CGMCC (China General Microbiological Culture Collection Center) NO.27911. The invention further provides an application of the streptomyces canceostimuli FJ-10. The streptomyces cancericola FJ-10 provided by the invention not only has a very strong bacteriostatic effect on corn southern leaf blight pathogenic bacteria, namely, helminthosporium longibrachiatum, but also has a relatively good inhibiting effect on common corn diseases such as corn leaf blight, corn alternaria leaf spot, corn fusarium stem rot, corn sheath blight and corn stem rot. Field experiments prove that corn southern leaf blight can be effectively prevented and treated after corn plants are inoculated with the streptomyces cancericola FJ-10 fermentation liquor for 28 days.

The invention belongs to the field of pesticides, and relates to a 2-cyano-3-disubstituted phenyl acrylate compound as well as a preparation method and application thereof in pesticides. Carrying out alcoholysis reaction on the benzonitrile compound a and a hydrogen chloride absolute ethyl alcohol solution to obtain an intermediate b; carrying out condensation reaction on the intermediate b and ethyl cyanoacetate under the action of alkali to obtain an intermediate c; the intermediate c and a substituted compound are subjected to a substitution reaction under the action of alkali and a catalyst, and the 2-cyano-3-disubstituted phenyl acrylate compound I is obtained. The 2-cyano-3-disubstituted phenylacrylate compound provided by the invention has good bactericidal activity, and has relatively high bactericidal activity on pathogenic bacteria of chlorosclerotium, fusarium, acrocyst, colletotrichum, cercospora, verticillium and black beancurd skin; the compound can be used for preparing bactericides in the fields of agriculture, horticulture, industry and the like, and has the advantages of broad spectrum, high efficiency, low toxicity and environmental friendliness.

The invention relates to a salt-tolerant bacillus and application thereof, and belongs to the technical field of microbial fertilizers, the salt-tolerant bacillus is preserved in China General Microbiological Culture Collection Center (CGMCC) on July 10, 2024, and the preservation number is CGMCC No.31260; the strain is relatively strong in saline-alkaline tolerance, has the capabilities of dissolving potassium, decomposing cellulose, degrading protein and dissolving organophosphorus, can antagonize various plant pathogenic bacteria such as Erwinia persicae, fusarium oxysporum and fusarium fusiforme, can generate a good growth promoting effect on corn in a salt-free or salt-containing environment, and is very wide in application prospect.

The invention relates to the field of microorganisms, in particular to a mortierella alpina strain MA with a plant growth promoting function and application of the mortierella alpina strain MA. The strain has remarkable nitrogen fixation, siderophore production, auxin (IAA) production and cellulase activity, can inhibit various soil-borne pathogenic bacteria such as phytophthora capsici and fusarium, and remarkably improves the disease resistance and growth performance of crops such as pepper. The strain has various functions and broad-spectrum action, is suitable for replacing part of chemical fertilizers and pesticides in intensive agriculture, and realizes green and efficient planting of crops.

The invention belongs to the technical field of agricultural microorganisms, and particularly relates to pseudomonas fluorescens as well as a microbial agent and application thereof. The invention discloses a pseudomonas fluorescens TJ194, which is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.33697. The pseudomonas fluorescens TJ194 has the advantages that the pseudomonas fluorescens TJ194 can be used for preparing the pseudomonas fluorescens TJ194, and the pseudomonas fluorescens TJ194 can be used for preparing the pseudomonas fluorescens TJ194; tests prove that the strain has the activity of inhibiting the growth of fusarium pseudograminearum; by applying a fungicide containing the strain, the disease index of the wheat stem rot is remarkably reduced, and meanwhile, the fresh weight of the overground part and the underground part of wheat is increased, so that the pseudomonas fluorescens TJ194 and the fungicide thereof can be applied to prevention and treatment of the plant stem rot and promotion of plant growth.

The invention provides bacillus velezensis NR10, and the preservation number of the bacillus velezensis NR10 is CGMCC (China General Microbiological Culture Collection Center) NO.31771. The bacillus velezensis NR10 is a strawberry endophyte, has good bacteriostatic activity, has good antagonistic action on botrytis cinerea, fusarium oxysporum, colletotrichum gloeosporioides, colletotrichum oxysporum, trichoderma harzianum, trichoderma longibrachiatum and the like, is a potential biological preparation for preventing and treating strawberry diseases and the like, and has broad application prospects. And the bacteriostatic action of the bacillus velezensis NR10 has thermal stability. In addition, the bacillus velezensis also has good capacities of producing siderophores, fixing nitrogen and dissolving potassium, producing protease and cellulase and the like. The bacillus velezensis NR10 provided by the invention has wider-spectrum disease resistance, wide development space and good development and application prospects.

The invention relates to the technical field of agricultural biological prevention and control, in particular to a pseudomonas chlororaphis subsp. Aurantiaca strain for preventing and controlling wheat basal stem rot and application of the pseudomonas chlororaphis subsp. Aurantiaca strain. The pseudomonas chlororaphis subsp. Aurantiaca strain for preventing and treating wheat stem rot is P. chlororaphis subsp. Aurantiaca, has very good antagonistic activity to fusarium pseudograminearum and fusarium flavum, the inhibition rate to the fusarium pseudograminearum strain reaches 76.07%, the inhibition rate to the fusarium flavum strain reaches 73.26%, and the inhibition rate to the fusarium flavum strain reaches 76.07%, so that the pseudomonas chlororaphis subsp. Aurantiaca strain for preventing and treating wheat stem rot can be used for preventing and treating wheat stem rot. The P. chlororaphis subsp. Aurantiaca can induce wheat to generate resistance to Fusarium pseudograminearum and Fusarium fulvum, the prevention and treatment effect on the Fusarium pseudograminearum strain reaches 55.77%, the prevention and treatment effect on the Fusarium fulvum strain reaches 51.19%, therefore, the P. chlororaphis subsp. Aurantiaca can significantly reduce the severity of the wheat basal stem rot, and the P. chlororaphis subsp. Aurantiaca can be used for preventing and treating the wheat basal stem rot. Meanwhile, the plant height, fresh weight and root length of wheat can be increased, and a remarkable growth promoting effect on wheat plants is achieved.

The invention discloses bacillus velezensis and application of the bacillus velezensis in prevention and treatment of basal stem rot, the classification name of the bacillus velezensis is bacillus velezensis GN-22, the bacillus velezensis is preserved in China Center for Type Culture Collection (CCTCC), the preservation number of the bacillus velezensis is CCTCC NO: M2025566, and the preservation date is March 24, 2025. The bacillus velezensis GN-22 disclosed by the invention belongs to rhizosphere growth-promoting bacteria, has a remarkable inhibition effect on different pathogenic fungi such as fusarium graminearum, fusarium pseudograminearum, fusarium asiaticum, fusarium verticillioides and fusarium oxysporum, and plays an important role in biological control of diseases such as corn and wheat stem rot; meanwhile, the strain has a growth promoting effect and can promote corn growth. The strain provided by the invention has the advantages of simple culture conditions, easiness in preservation, easiness in industrial production and good development and application prospects.

The invention relates to the technical field of microorganisms, and discloses trichoderma yunnanense and application thereof. The Trichoderma yunnanense CCTCC NO: M 2025645 provided by the invention is a dominant strain of a high-yield siderophore, the activity of the siderophore is 69.79%, and the Trichoderma yunnanense can be used for synthesizing and secreting carboxylic acid type siderophore; the strain has a sulfur oxidation function; in addition, the invention also provides an application of the trichoderma sp. In regulation and control of plant diseases, the trichoderma sp. Disclosed by the invention can be used for antagonizing fusarium solani, fusarium graminearum, fusarium moniliforme, Rosellinia necatrix and Alternaria brassicae (Fr.) Kissler, and the trichoderma sp. Can be used for antagonizing fusarium solani, fusarium graminearum, fusarium moniliforme, Rosellinia necatrix and Alternaria brassicae (Fr.) Kissler, and can be used for antagonizing fusarium solani, fusarium graminearum, fusarium moniliforme, Rosellinia necatrix and Alternaria brassicae. The Trichoderma yunnanense provided by the invention is a strain separated from tobacco planting soil, and compared with a strain subjected to mutagenesis screening in an extreme environment and a laboratory, the Trichoderma yunnanense has better adaptability when being applied to a planting environment, and can be stably colonized in plant rhizosphere and soil, so that the Trichoderma yunnanense stably plays a growth promoting role for a long time, is safe and environment-friendly, and has a wide application prospect.

The invention relates to fusarium venanii with high protein conversion rate and application of the fusarium venanii to improvement of hypha protein satiety, and belongs to the field of genetic engineering technology and food biotechnology. The fusarium venenatum FCPD disclosed by the invention is preserved in the China Center for Type Culture Collection on December 6, 2024, and the preservation number of the fusarium venenatum FCPD is CCTCC (China Center for Type Culture Collection) NO: M 20242752. The glucose consumption of a substrate for producing mycelia with the same dry weight by the fusarium venanii is reduced by 40-60% compared with that of a wild type, the protein conversion rate is improved by 70-80%, the grease content is improved by 90-110%, the gastric semi-emptying time of in-vitro simulated digestion is prolonged by 10-30%, and the quality of fusarium venanii mycelium protein is remarkably improved. Genetic engineering modification work can be further developed, and fusarium strains with high substrate conversion rate, high grease content and high satiety potential can be cultivated.

The invention provides an application of protozoa nephroplasmosis NJAU-Z2 in promoting banana growth and preventing and controlling fusarium wilt. The protozoa kidney-shaped worm NJAU-Z2 with the preservation number of CCTCC (China Center For Type Culture Collection) NO: C2024242 is applied to improvement of the content of ammonium nitrogen in soil, promotion of banana growth and prevention and treatment of banana fusarium wilt. A pot experiment shows that the kidney-shaped worm NJAU-Z2 can improve the content of ammonium nitrogen in soil, remarkably promote the growth of banana plants and improve the biomass of the banana plants. Indoor experiments find that the kidney-shaped worm NJAU-Z2 can directly inhibit growth of pathogenic bacteria fusarium oxysporum of banana wilt, and pot experiments prove that the kidney-shaped worm NJAU-Z2 has a good prevention and control effect on the banana wilt. Development and application of the beneficial protozoa are important agricultural measures for realizing efficient prevention and control of soil-borne diseases and green and sustainable development of agriculture.

The invention discloses a microbial fertilizer and application thereof, and the microbial fertilizer is prepared from the following components: Penicillium janthinellum, Bacillus mojavensis, biochar, turfy soil, corn straw powder, bentonite and gamma-polyglutamic acid, and the microbial fertilizer is prepared from the following components: Penicillium janthinellum, Bacillus mojavensis, biochar, turfy soil, corn straw powder, bentonite and gamma-polyglutamic acid. The microbial fertilizer provided by the invention can effectively prevent and treat root rot of Amomum tsao-ko caused by fusarium oxysporum, and is beneficial to improving the yield of Amomum tsao-ko and prolonging the life of Amomum tsao-ko plants.

The invention relates to a cultivation nutrient medium and a preparation method thereof. According to the nutrient medium, peat is completely abandoned, the coco coir, the straw and the biochar are combined to reduce ecological burden, the nutrient medium is an environment-friendly medium, the biochar fixes carbon and reduces emission, and the soil structure can be improved after long-term use; vermiculite improves the water-holding capacity, perlite and straw form a stable pore structure, and the ventilation porosity reaches 25% or above. Wormcast and a microbial agent synergistically release nitrogen, phosphorus and potassium, and the fertilizer efficiency is lasting. The microbial agent can inhibit soil-borne diseases such as fusarium and reduce the death rate of cultivated seedlings. The biochar adsorbs salt and toxins, and the EC value is stabilized at 1.2-1.8 mS / cm. The cost of the selected raw materials is reduced by 35% compared with that of a traditional substrate, and the substrate is suitable for large-scale production, suitable for vegetable seedling culture, potted flowers, organic farms and soilless culture systems, and especially suitable for saline-alkali soil or continuous cropping obstacle areas.

The invention belongs to the technical field of modern agriculture, and particularly relates to a biocontrol bacillus amyloliquefaciens BA200 and application thereof. A new biological control bacterium BA200 is separated and identified, is named as bacillus amyloliquefaciens by taxonomy, and has a remarkable inhibition capability on two pathogenic bacteria, namely fusarium oxysporum and phytophthora vigna, causing the cowpea fusarium wilt, and the inhibition rate is up to 60% or above; fermentation liquor prepared from the bacillus amyloliquefaciens BA200 can remarkably reduce the morbidity and disease index of cowpea fusarium wilt, is a good biocontrol microorganism and has application and development potential and important significance in control of cowpea fusarium wilt, and the biocontrol bacterium bacillus amyloliquefaciens BA200 has a broad-spectrum biological control effect, can inhibit various phytopathogens and has a good application prospect. And valuable biocontrol bacterium resources are provided for preparation of biological bactericides.

The invention discloses talaromyces purpurogenum as well as a fermented supernatant and application thereof. The preservation number of the talaromyces purpureogenus F-4 is CCTCC NO: M 20252023, and the talaromyces purpureogenus F-4 has the growth promoting effects of dissolving phosphorus, fixing nitrogen and generating siderophores, also has the disease preventing and treating effects of preventing and treating garlic root rot, potato scab and wheat stem rot, and also can resist salt stress, alkali stress, salt-alkali composite stress, heavy metal stress and osmotic pressure stress. The fermentation supernatant of the talaromyces purpureus F-4 can be used for inhibiting the growth of fusarium solani spores, streptomyces botrytis spores and fusarium pseudograminearum and the germination of the spores of the fusarium solani, the streptomyces botrytis and the fusarium pseudograminearum. The talaromyces purpurogenus and the fermented supernatant thereof can effectively control the growth and reproduction of plant pathogens, reduce the risk of disease occurrence, reduce the dependence on chemical pesticides, and reduce the risk of environmental pollution and agricultural product residues, and have important significance for promoting the sustainable development of agriculture.

The invention belongs to the technical field of biological bacterium agents, and particularly relates to a penicillium photosporum LZ-3, a bacterium agent and application of the penicillium photosporum LZ-3 in biological prevention and control and growth promotion of panax notoginseng root rot. The preservation number of the penicillium glabrata LZ-3 disclosed by the invention is CCTCC (China Center for Type Culture Collection) NO: M2024280. On the basis, the invention further provides a microbial inoculum containing the penicillium photosporum LZ-3, and the penicillium photosporum LZ-3 and the microbial inoculum containing the penicillium photosporum LZ-3 can effectively relieve continuous cropping obstacles of the panax notoginseng and antagonize fusarium fungi and sphaerotheca fungi so as to achieve the effect of preventing and controlling the root rot of the panax notoginseng. Meanwhile, the growth of the pseudo-ginseng can be promoted and the saponin content in the pseudo-ginseng can be increased.

The invention belongs to the technical field of microorganisms, and particularly relates to a P.adami FJ08 strain, a fungicide, a preparation method and application thereof, which can be used for inhibiting soil-borne diseases of radix pseudostellariae. The invention discloses a P.aryabhattai FJ08, the P.aryabhattai FJ08 is preserved in the Microbial Culture Collection Center of Guangdong Province, the preservation number is GDMCC No: 65907, and the preservation date is March 24, 2025. The P.aryabhattai FJ08 has the advantages that the P.aryabhattai FJ08 can be used for preparing the P.aryabhattai FJ08; the P.aryabhattai FJ08 is separated from the radix pseudostellariae seed ginseng, is safe and reliable, and has the capabilities of inhibiting the growth of fusarium oxysporum, producing IAA, producing ammonia, dissolving potassium and dissolving phosphorus, and the growth of pathogenic fusarium oxysporum can be effectively inhibited by soaking the radix pseudostellariae seed ginseng with the P.aryabhattai FJ08.

The invention belongs to the technical field of agricultural microorganisms, and particularly relates to Lecanicillium lecanii as well as a fungicide and application thereof, Lecanicillium lecanii GC-2 is obtained by screening and separating phyllospheric microorganisms, and the strain is proved to have relatively strong inhibitory activity on wheat stripe rust, fusarium graminearum and pseudocereal fusarium; a pot experiment verifies that the strain has a very strong inhibition effect on uredospores of wheat stripe rust, has a relatively strong antagonism effect on pathogenic bacteria of wheat scab and wheat stem rot, has a remarkable prevention and treatment effect on the wheat stripe rust, the wheat stem rot and the wheat scab, has a better prevention effect than a treatment effect, and can be widely applied to prevention and treatment of wheat stripe rust, wheat stem rot and wheat scab. Meanwhile, the strain has no adverse effect on growth and development of wheat and can be applied to prevention and treatment of wheat stripe rust, basal stem rot and gibberellic disease. The invention provides a new strain resource for a biocontrol resource library of plant diseases.

The invention relates to the field of gene engineering, in particular to a wheat antibacterial peptide and a gene and application thereof. The amino acid sequence of the wheat antibacterial peptide TaThiL1 is as shown in SEQ ID NO: 1. The wheat antibacterial peptide TaThiL1 is used for replacing chemical pesticides and preventing and treating plant fungal diseases, and the TaThiL1 protein has an inhibiting effect on the growth of fusarium graminearum and pseudofusarium graminearum.

The invention relates to bacillus velezensis and application thereof in prevention and treatment of wheat leaf blight and inhibition of plant pathogenic fungi, and belongs to the field of biological prevention and treatment. The bacillus velezensis HXYT7 is separated and screened from tobacco leaves growing in a tobacco plantation (the longitude is 113.73 and the latitude is 33.91) in Xiangchang County in elm city, Henan province, has a remarkable inhibition effect on mophila, fusarium moniliforme, fusarium graminearum, rhizoctonia cerealis, aspergillus flavus and aspergillus niger, can damage the hypha structure of the mophila, and can be used for preparing the bacillus velezensis HXYT7. The bacillus subtilis can inhibit germination of spores of the helminthosporium, has an obvious prevention and treatment effect on the wheat leaf blight caused by the helminthosporium, and provides a new microbial resource for prevention and treatment of the wheat leaf blight.

The invention discloses a Brucella with antibacterial activity and application of the Brucella. The invention discloses Burkholderia sp.HNIV0701, and the preservation number of the Burkholderia sp.HNIV0701 is GDMCC No: 66007. The Burkholderia sp.HNIV0701 disclosed by the invention has a stable, efficient and broad-spectrum antibacterial property, has an inhibition effect on a plurality of plant pathogenic bacteria such as Botryosphaeria dothidea, Phytophthora nicotianae, Fusarium solani, Alternaria alternata, Thanatepora cucurbitae, Ralstonia solanacearum and the like, and also can be used for inhibiting Staphylococcus aureus and / or Listeria monocytogenes, so that the Burkholderia sp.HNIV0701 can be used for inhibiting a plurality of plant pathogenic bacteria such as the Botryosphaeria dothidea, the Phytophthora nicotianae, the Fusarium solanum, the Alternaria solanacearum and the like. The Brucella HNIV0701 can hydrolyze organic phosphorus and can be used for soil improvement. The Brucella HNIV0701 has nitrogen fixation capability and has the potential of promoting plant growth.

The invention belongs to the technical field of microbiology and agricultural application thereof, and particularly relates to bacillus aerosus, a microbial agent and application of the microbial agent. According to the invention, a strain with good antagonism on tobacco black shank and fusarium root rot is separated and screened from tomato roots, and is identified as aerobacillus, and chitinase, cellulase and protease are secreted to dissolve the cell wall structure of pathogenic bacteria hyphae and inhibit the growth of pathogenic bacteria, so that the pathogenic bacteria lose the infection ability, and the pathogenic bacteria are effectively prevented from being infected. The biocontrol microbial inoculant has the antibacterial effect on more than 10 plant pathogenic fungi, the antibacterial rate is greater than 80%, especially the antibacterial rate on phytophthora nicotianae and fusarium oxysporum is greater than 90%, and pot experiments and field experiments prove that the biocontrol microbial inoculant has the control effect on tobacco black shank and fusarium root rot obviously superior to those of commercially available biocontrol microbial inoculants and chemical agents; meanwhile, the tobacco seed germination can be promoted, the growth and development of field tobacco plants are promoted, the subculture stability is better, and the application prospect is wide.

The invention relates to paenibacillus polymyxa capable of preventing diseases, resisting stress and promoting growth and application of the paenibacillus polymyxa, and belongs to the technical field of microorganisms, the paenibacillus polymyxa SS44 has the characteristics of degrading protein, degrading fat, degrading cellulose, dissolving potassium, fixing nitrogen, dissolving organic phosphorus, dissolving inorganic phosphorus and producing exopolysaccharide. The strain is capable of antagonizing pathogenic bacteria fusarium oxysporum and fusarium fusiforme which can cause potato fusarium wilt, sweet potato root rot, soybean root rot, alfalfa root rot and the like, can improve sandy soil, can generate a good growth promoting effect on wheat, soybean and corn in saline-alkali soil and sandy barren soil environments, and is very wide in application prospect.

The invention relates to a microbial agent for preventing and treating root rot of radix tinosporae and application of the microbial agent. The microbial agent is prepared from the following components: bacillus velezensis with the preservation number of CCTCC (China Center for Type Culture Collection) No: M2022923, bacillus subtilis with the preservation number of CCTCC No: M20221207, a marigold extract, amino acid, humic acid and medium trace elements. When the microbial agent is applied to the planting process of radix tinosporae, the physicochemical property of radix tinosporae planting soil can be remarkably improved, the enzyme activity and the microbial diversity can be improved, the content of phenolic acid and fusarium toxin in the soil can be reduced, the disease index of radix tinosporae root rot caused by fusarium solani and pythium aphanidermatum can be further reduced, and finally prevention and control of radix tinosporae root rot can be achieved.

The content of IAA produced by the pantoea agglomerans JHS0317 can reach 26.81 mg / L, the content of ACC deaminase produced by the pantoea agglomerans JHS0317 is 470.34 U / L, the pantoea agglomerans JHS0317 has multiple functions of dissolving phosphorus, dissolving potassium, fixing nitrogen, producing siderophore and the like, meanwhile, the pantoea agglomerans JHS0317 has inhibition effects on tobacco fusarium oxysporum and fusarium solani, the inhibition rates are 42.98% and 41.20%, the germination rate of tobacco seeds is increased through treatment of the strain JHS0317, and the root length is remarkably promoted; the root activity, the whole plant fresh weight, the overground fresh weight, the root fresh weight, the maximum leaf length and the maximum leaf width of tobacco seedlings treated by the strain JHS0317 with the bacterium content of 1 * 10 < 5 > cfu / mL in a seedling culture substrate are obviously higher than those of the tobacco seedlings treated by a contrast, and the strain can be used as a plant growth-promoting rhizobacteria and has a good application prospect in research and development of microbial fertilizers and biological prevention and control of tobacco fusarium root rot.

The invention discloses a composite functional bacterial agent for preventing and controlling wheat scab and vomitoxin and application of the composite functional bacterial agent. The composite functional bacterial agent is applied to wheat scab and deoxynivalenol pollution caused by fusarium graminearum. The composite functional bacterial agent comprises a biocontrol strain bacillus subtilis DC-1 (Bacillus subtilis DC-1) and a degradation strain nocardia sp. MOZ-1 (Nocardia sp. MOZ-1), and the composite functional bacterial agent is prepared from the biocontrol strain bacillus subtilis DC-1, the degradation strain nocardia sp. MOZ-1 and the degradation strain nocardia sp. MOZ-1. The complex microbial inoculant can significantly inhibit infection of fusarium graminearum and reduce accumulation of DON in wheat, is low in production cost, reduces use of chemical pesticides and pollution of biotoxins in agricultural products, and can be effectively applied to the field of agricultural biological control.