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44 results about "Rhizobacteria" patented technology

Rhizobacteria are root-associated bacteria that form symbiotic relationships with many plants. The name comes from the Greek rhiza, meaning root. Though parasitic varieties of rhizobacteria exist, the term usually refers to bacteria that form a relationship beneficial for both parties (mutualism). They are an important group of microorganisms used in biofertilizer. Biofertilization accounts for about 65% of the nitrogen supply to crops worldwide. Rhizobacteria are often referred to as plant growth-promoting rhizobacteria, or PGPRs. The term PGPRs was first used by Joseph W. Kloepper in the late 1970s and has become commonly used in scientific literature. PGPRs have different relationships with different species of host plants. The two major classes of relationships are rhizospheric and endophytic. Rhizospheric relationships consist of the PGPRs that colonize the surface of the root, or superficial intercellular spaces of the host plant, often forming root nodules. The dominant species found in the rhizosphere is a microbe from the genus Azospirillum. Endophytic relationships involve the PGPRs residing and growing within the host plant in the apoplastic space.

Bacillus velezensis and application thereof in prevention and treatment of basal stem rot

ActiveCN120249134ABiocidePlant growth regulatorsBiotechnologyRhizobacteria
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.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Actinomucor elegans EM-27, microbial agent and application

The invention discloses actinomucor elegans EM-27, a microbial agent and application, and belongs to the technical field of microbial application. The strain is preserved in China General Microbiological Culture Collection Center (CGMCC) on April 24, 2025, the preservation address is No.3, No.1 yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC NO.41924. According to the invention, an actinomucor elegans strain is separated from wheat rhizosphere, and antagonism experiments find that 8.7% of rhizosphere bacteria have antagonism on the actinomucor elegans, and 91.3% of rhizosphere bacteria and actinomucor elegans can coexist. And by applying actinomucor elegans, the growth and development of wheat can be obviously promoted. Therefore, the actinomucor elegans has a good application prospect in the aspect of improving plant growth and development.
Owner:CHINA AGRI UNIV

Composite combined inoculation method using arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria

The invention relates to the technical field of agricultural micro-ecological application, and particularly discloses a composite combined inoculation method using arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria, which comprises the following steps: selecting corn plant seeds without plant diseases and insect pests; a corn planting land is randomly divided into land parcels with the area of 6 m < 2 > (2 m * 3 m), a buffer zone of 1.0 m is arranged between every two adjacent land parcels, and the cultivation mode is flat cropping; the method comprises the following steps: planting arbuscular mycorrhizal fungi inoculum comprising mycorrhiza, dry sand containing spores and ectotrophic hyphae and corn seeds in soil by using a seeder during corn sowing, and after the corn is planted for 30 days, inoculating the plant growth-promoting rhizobacteria inoculum into plants and soil by using a flood irrigation root irrigation method, when the arbuscular mycorrhizal fungi and the plant growth-promoting rhizobacteria are inoculated together, the corn rhizosphere microbial community can be changed, the richness and diversity of fungi and bacterial communities in soil are increased, and the relative abundance of plant pathogens in the soil is reduced.
Owner:YUNNAN UNIV

Plant growth-promoting rhizobacteria and application thereof

The invention relates to a plant growth-promoting rhizobacteria. The preservation number of the plant growth-promoting rhizobacteria is GDMCC No: 65494. Through rhizosphere soil microorganism sampling of Gannan navel oranges, the strain G41 with the characteristics of producing indoleacetic acid, producing siderophores and solubilizing phosphorus is successfully separated out. Furthermore, pot experiments verify that the strain group is inoculated, so that the plant height, stem diameter, biomass, chlorophyll content and antioxidant enzyme activity of navel orange seedlings are increased, and the strain has an excellent growth promoting effect. Through strain identification, the strain is formally named as the bacillus subtilis G41, and the bacillus subtilis G41 is named as the bacillus subtilis G41. In particular, it is worth mentioning that the strain has rich gene resources, 32 genes related to growth promoting characteristics are excavated from the gene level, and the genes are widely distributed in key processes such as indoleacetic acid biosynthesis, siderophore biosynthesis and transport and phosphorus circulation.
Owner:JIANGXI FUTU AGRI TECH CO LTD +1

Burkholderia and application thereof

The invention relates to the field of growth promoting rhizobacteria (PGPR), in particular to Burkholderia territorii D4-36 and application of the Burkholderia territorii D4-36. The Burkholderia territorii D4-36 is prepared from Burkholderia territorii D4-36 The strain is Burkholderia territorii D4-36, and is preserved in the General Microbiological Culture Collection Center of the China Committee for Culture Collection of Microorganisms; the Burkholderia territorii D4-36 is separated into the corn rhizosphere soil, the growth temperature range is large, the Burkholderia territorii D4-36 can easily adapt to various soil environments, VOCs can be generated to promote the growth of cherry seedlings, the expression quantity of IAA synthesis related genes at the roots of the cherry seedlings can be increased, and the rhizosphere soil microbial community structure of the Burkholderia territorii D4-36 can be changed to promote the growth of the cherry seedlings. Therefore, the strain can be used in crop production, not only can promote crop growth, but also has important significance for green sustainable agricultural development.
Owner:SHENYANG AGRI UNIV

Plant growth-promoting rhizobacteria and application thereof

The invention discloses a plant growth-promoting bacterium and application thereof, relates to the field of microorganisms, and provides a plant growth-promoting bacterium which can generate a growth-promoting effect on corn plants and further improve the growth condition of the corn plants. The growth-promoting bacterium is pumilus minutus E2 and is preserved in the China Center for Type Culture Collection, the preservation address is Wuhan University in Wuhan, the preservation date is September 19, 2025, and the preservation number is CCTCC NO: M 20252071. By applying the strain to a corn culture medium, the bifurcation number, the root tip number, the root length, the dry weight, the fresh weight and the plant height of corn can be increased, the growth promoting effect of the strain on corn plants is proved, and a basic support is provided for further application to production.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Special biological fertilizer for flos osmanthi fragrantis and preparation method and application thereof

The invention discloses a special biological fertilizer for osmanthus fragrans flower and a preparation method and application thereof, and belongs to the technical field of biological fertilizers. The special biological fertilizer is prepared from the following raw materials in percentage by mass: 65% of rape seed cakes, 10% of dry branches and fallen leaves, 0.4% of nano silicon, 5% of seaweed extract, 15% of bone meal, 3.4% of potassium sulfate, 1% of trace elements and 0.2% of growth-promoting rhizobacteria. The biological fertilizer is inoculated to osmanthus fragrans cutting seedlings, and results show that the plant height and the crown breadth of a biological fertilizer group are obviously higher than those of a control group from the second month. The biological fertilizer is inoculated to 2-3-year-old healthy sweet osmanthus seedlings, and results show that the biological fertilizer group is obviously higher than the control group 15 days after first fertilization. The biological fertilizer is inoculated to healthy plants with similar growth conditions of the same sweet-scented osmanthus variety, and results show that the biological fertilizer significantly improves the inflorescence number (+ 50%) of a single sweet-scented osmanthus plant and the flower number (+ 45%) of a single inflorescence; the flower development period is prolonged.
Owner:NANJING FORESTRY UNIV

Plant growth-promoting rhizobacteria HB-63 and application thereof

The invention discloses a growth-promoting rhizosphere bacterium HB-63 and application thereof, and belongs to the technical field of agricultural microorganisms. The growth-promoting rhizobacteria HB-63 is bacillus aryabhattai and is preserved in the Guangdong Microbial Culture Collection Center, and the preservation number of the growth-promoting rhizobacteria HB-63 is GDMCC (Guangdong Microbial Culture Collection Center) NO: 67117. The invention discloses a culture containing the growth-promoting rhizobacteria HB-63 and a microbial agent containing the growth-promoting rhizobacteria HB-63 or the culture of the growth-promoting rhizobacteria HB-63. The invention also discloses application of the growth-promoting rhizobacteria HB-63 or the culture thereof or the microbial agent containing the growth-promoting rhizobacteria HB-63, and the application comprises application in products for promoting the development of epimedium root systems or increasing the content of medicinal components. According to the invention, the growth-promoting rhizobacteria HB-63 with a growth-promoting effect on epimedium is found for the first time. Compared with an existing plant growth-promoting bacterium with a single function, the strain HB-63 has the outstanding advantages of efficiently promoting plant growth and remarkably improving the quality of medicinal materials, and has an important promoting effect on guaranteeing the quality of traditional Chinese medicinal materials and improving industrial economic benefits.
Owner:JILIN AGRICULTURAL UNIV

Growth-promoting rhizobacteria and application thereof

PendingCN120272357ABiocidePlant growth regulatorsGrowth plantRhizobacteria
Provided are a bacterial strain for promoting plant growth and an application thereof, the bacterial strain being selected from at least one of the following: a strain 1 comprising a 16S rDNA sequence as shown in SEQ ID NO: 1 or a complementary sequence thereof or a sequence at least 85% identical to SEQ ID NO: 1; the strain 2 comprises a 16S rDNA sequence as shown in SEQ ID NO: 2 or comprises a sequence which is at least 85% identical with the sequence as shown in SEQ ID NO: 2; a strain 3 comprising a 16S rDNA sequence as shown in SEQ ID NO: 3 or comprising a sequence at least 85% identical to the sequence as shown in SEQ ID NO: 3; and a strain 4 comprising the 16S rDNA sequence as shown in SEQ ID NO: 4 or comprising a sequence at least 85% identical to SEQ ID NO: 4.
Owner:SHENZHEN HUADA GENE INST +1

High-resistance plant cultivation method suitable for acidic potassium feldspar mine

The invention relates to the technical field of plant cultivation, in particular to a high-resistance plant cultivation method suitable for an acidic potassium feldspar mine. Comprising the following steps: screening a symbiotic synergistic plant group: selecting a potassium-enriched plant, an aluminum toxicity-resistant plant and a growth-promoting rhizobacteria carrier plant; constructing a layered matrix: sequentially laying an isolating layer, an improved layer and a growth layer on the mine surface; inoculating acid-resistant growth-promoting rhizobacteria: inoculating the acid-resistant strain to the root system of the carrier plant; planting by division of labor according to functions: arranging potassium-enriched plants and aluminum toxicity-resistant plants at intervals, and planting carrier plants at the periphery; through cooperative planting of symbiotic cooperative plant groups, in cooperation with three-dimensional resistance control and acid-base regulation and control of layered substrates and targeted inoculation of acid-resistant rhizosphere growth-promoting bacteria to carrier plant root systems, biological adsorption passivation of aluminum ions, biological activation of mineral potassium and cooperative optimization of rhizosphere microdomain pH are achieved, and the yield of the plant growth-promoting agent is increased. Therefore, the problems of aluminum toxicity stress and low potassium bioavailability of the acidic potassium feldspar mine are systematically solved.
Owner:江西省地质局生态地质大队 +1

Plant growth-promoting rhizobacteria for enhancing salt tolerance of wheat and application of plant growth-promoting rhizobacteria

The invention provides a growth-promoting rhizobacteria for enhancing salt tolerance of wheat and application of the growth-promoting rhizobacteria, and belongs to the technical field of agricultural microorganisms. The invention provides stenotrophomonas maltophilia TJ3-57, and the preservation number of the stenotrophomonas maltophilia TJ3-57 is GDMCC (Graphical Digital Microbial Counter Center) The stenotrophomonas maltophilia TJ3-57 can improve the salt stress resistance of plants, relieve the damage of salt stress to the plants and promote the growth of the plants in the saline-alkali soil, so that the yield of crops in the saline-alkali soil is increased.
Owner:NANJING AGRICULTURAL UNIVERSITY +1

A plant growth promoting rhizobacteria composition for improving salt stress tolerance of plants and application thereof

ActiveCN119592476BBiocidePlant growth regulatorsBiotechnologyRhizobacteria
The application discloses a kind of plant salt stress tolerance improving rhizosphere growth promoting bacteria composition and application thereof, belong to microbial application technical field.The rhizosphere growth promoting bacteria composition of the application includes Bacillus subtilis BK73 with accession number CGMCC NO.32725 and Enterobacter ludwigii FZ20 with accession number CGMCC NO.32550.Bacillus subtilis BK73 has the activity of producing ACC deaminase, can synthesize gamma-polyglutamic acid, and Enterobacter ludwigii FZ20 has the ability of nitrogen fixation, phosphorus dissolution and IAA production.Plant experiments show that the rhizosphere growth promoting bacteria composition provided by the application exerts the synergistic effect between strains, and has obvious promoting effect on the germination of corn seeds under salt stress, the growth of corn plants and the salt stress tolerance of corn plants.The application provides a new growth promoting bacteria composition for improving plant salt tolerance, and has wide application prospect.
Owner:TIANJIN UNIV OF SCI & TECH

Rice growth-promoting rhizobacteria for activating insoluble phosphorus in red soil and application of rice growth-promoting rhizobacteria

The invention relates to a rice growth-promoting rhizobacteria for activating insoluble phosphorus in red soil and application of the rice growth-promoting rhizobacteria. The invention discloses a Pandoraea sp. PanRPS strain with phosphorus dissolving capacity in acid red soil and application of the Pandoraea sp. PanRPS strain. The strain PanRPS can take insoluble iron phosphate as a substrate to activate phosphorus in the insoluble iron phosphate, so that the growth of rice under low phosphorus stress is promoted. The functional strain provided by the invention is of great significance in relieving low-phosphorus stress in a rice planting system in an acid red soil medium-low yield field, promoting rice growth and increasing the rice yield in a red soil area.
Owner:NANJING AGRICULTURAL UNIVERSITY

Biofertilizer granule

PCT designated stageWO2025233491A1BiocidePlant growth regulatorsRhizobacteriaAnti fungal
Biofertilizer granule comprising a core and a coating, said core comprises at least one fertilizer chosen in the group comprising inorganic fertilizer, organic fertilizers, biofertilizer, and their mixture, said coating comprises at least a binding agent and a soil activator composition having an extended shelf-life duration, said soil activator composition comprising at least a carrier and at least a bacterial mixture containing at least a rhizobacteria species being a Bacillus subtilis and at least a bacteria species with some antifungal activity being different from Bacillus subtilis and being a Pseudomonas monteilii species, said bacterial mixture containing at least 263 million (2.63x108) cfu total bacteria / g soil activator composition after said extended shelf life measured according to ASTM-D5465- 93 (dated 1998) standard.
Owner:EARTH ALIVE CLEAN TECH

Growth-promoting rhizobacteria and application thereof

Provided are a bacterial strain for promoting plant growth and an application thereof, the bacterial strain being selected from at least one of the following: a strain 1 comprising a 16S rDNA sequence as shown in SEQ ID NO: 1 or a complementary sequence thereof or a sequence at least 85% identical to SEQ ID NO: 1; the strain 2 comprises a 16S rDNA sequence as shown in SEQ ID NO: 2 or comprises a sequence which is at least 85% identical with the sequence as shown in SEQ ID NO: 2; a strain 3 comprising a 16S rDNA sequence as shown in SEQ ID NO: 3 or comprising a sequence at least 85% identical to the sequence as shown in SEQ ID NO: 3; and a strain 4 comprising the 16S rDNA sequence as shown in SEQ ID NO: 4 or comprising a sequence at least 85% identical to SEQ ID NO: 4.
Owner:SHENZHEN HUADA GENE INST +1

Method for improving nitrogen utilization efficiency and fixing carbon and reducing emission based on synergism of biochar and microbial agent

The invention discloses a method for synergistically improving nitrogen utilization efficiency and fixing carbon and reducing emission based on biochar and a microbial agent. The method comprises the following steps: providing biochar; arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria are provided; the biochar is applied before crops are sown, and the arbuscular mycorrhizal fungi and the plant growth-promoting rhizobacteria are applied before the crops are sown or when the crops are sown; field management; and evaluating carbon sequestration and emission reduction. The biochar provides a habitat for arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria, the arbuscular mycorrhizal fungi and the plant growth-promoting rhizobacteria are protected, nutrients are adsorbed through the porous structure and surface characteristics of the biochar, and loss is reduced; the arbuscular mycorrhizal fungus hypha network enlarges the root system absorption range, especially promotes absorption of phosphorus and other difficult-to-move nutrients, and indirectly promotes nitrogen metabolism; the plant growth-promoting rhizobacteria can fix nitrogen, dissolve phosphorus, secrete growth hormone and directly promote plant growth and nitrogen absorption. The three components cooperate with each other to create an optimal rhizosphere microenvironment, so that nitrogen supply and crop requirements are better matched in time and space.
Owner:CHENGDU INSTITUTE OF BIOLOGY CHINESE ACADEMY OF SCIENCES

Cinnamomum camphora adventitious root suspension culture and d-borneol efficient accumulation method

The invention discloses a method for cinnamomum camphora adventitious root suspension culture and efficient d-borneol accumulation, and belongs to the technical field of plant tissue culture. The invention discloses a method for cinnamomum camphora adventitious root suspension culture and efficient d-borneol accumulation, which comprises the following steps: establishing a cinnamomum camphora sterile regeneration system to obtain sterile seedlings, inducing the sterile seedlings to generate adventitious roots, preparing a plant growth-promoting rhizobacteria PGPR extracting solution, and culturing and domesticating the adventitious roots by using a suspension culture medium containing the PGPR extracting solution. The domesticated adventitious roots are subjected to efficient d-borneol accumulation culture in an induction culture medium, and the accumulated d-borneol is extracted and detected. The method effectively solves the problems of long production period, low yield and unstable components of the traditional method, and provides reliable technical support for realizing large-scale and green production of the d-borneol.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Plant growth-promoting rhizobacteria specific primer pair, kit and application

The invention discloses a plant growth-promoting bacterium specific primer pair, a kit and application. The plant growth-promoting bacterium specific primer pair is composed of an upstream primer P463-F as shown in SEQ ID NO. 1 and a downstream primer P463-R2 as shown in SEQ ID NO. 2. According to the present invention, the plant growth-promoting bacterium specific primer pair is used for identifying the plant growth-promoting bacterium Penicillium sp.PQxj3, such that the survival state of the Penicillium sp.PQxj3 in the soil can be monitored in real time, the application conditions of the Penicillium sp.PQxj3 in different environments, different crops and different soils can be optimized, and the optimal effect of plant growth promotion can be achieved.
Owner:HENAN AGRICULTURAL UNIVERSITY

Culture medium for high-throughput seperation of rhizobacteria from crops, preparation method and application thereof

PendingUS20250283141A1FungiBacteriaBiotechnologyRhizobacteria
The present invention relates to the technical field of the environmental microbiology, especially to culture medium for high-throughput separation of rhizobacteria from crops, preparation method and application thereof. The culture medium for high-throughput separation of crop rhizobacteria comprises a 1 / l0 TSB medium and a culture medium additive (solution), wherein culture medium additive (solution) is obtained by mixing the crop plants with TSB medium and then by crushing, fermenting, filtering as well as sterilizing. By utilizing the interaction network between multiple microorganisms, crop-source nutrients are fermented using microbiome in-situ in the rhizosphere, and the fermented products are used as carbon and nitrogen source for separation of rhizosphere microorganisms, which can simulate the in-situ environment of rhizosphere microorganisms to the maximum extent, thereby obtaining more microbial species. Combined with the high-throughput separation method, culture medium provided by present invention can obtain more than 60% of bacterial species obtained by high-throughput sequencing.
Owner:BIOTECH CENT OF SHANDONG ACAD OF SCI

Engineered bacteria for enhanced crop production

PendingUS20250324977A1BiocidePlant growth regulatorsBiotechnologyRhizobacteria
The present invention provides for a plant-growth-promoting rhizobacterium (PGPR) genetically modified such that the PGPR is capable of colonizing the root of a plurality of plant species, such as a plurality of crop plant species, wherein the genetically modified PGPR is enhanced in the capability to colonize the root of a plurality of plant species when compared to a wild-type or unmodified PGPR.
Owner:RGT UNIV OF CALIFORNIA

Plant growth-promoting rhizobacterium nfb10 and application thereof

PendingCN122104498ABiocideAgriculture tools and machinesAmylaseRhizobacteria
The present application relates to the field of microbial technology, and specifically provides a plant growth promoting rhizobacteria NFB10 and its application. The strain is isolated from the rhizosphere soil of rubber tree in Hainan province, and is a potential new species of Pseudomonas. The similarity of 16S rDNA sequence of the strain to similar strains is higher than 99.8%, but the average nucleotide identity of whole genome between species is lower than the inter-species threshold of 95%. The strain has the abilities of phosphorus solubilization, potassium solubilization and nitrogen fixation, and can produce indole acetic acid, cellulase, amylase and ammonia and other growth promoting substances. The strain grows well in the salt concentration of 3% or less and the pH range of 5.0-9.0. Experiments show that the strain can significantly improve the germination rate, root length and sprout length of wheat seeds, and has obvious promoting effects on the plant height, ground diameter, biomass and chlorophyll content of the leaves of the seedlings of Hevea brasiliensis. The strain can be used for preparing plant growth promoting bacteria agents, and is suitable for green cultivation and yield improvement of rubber trees and other crops.
Owner:RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI

Bacillus velezensis strain and uses thereof

The present invention relates to a new Bacillus velezensis strain with deposit number CECT 30599 as well as uses thereof in agriculture. Specifically, the present invention relates to the use of the B. velezensis strain CECT 30599 to improve the resistance of a plant to drought, promote germination in a plant, promote the growth of a plant, the control of pathogenic microorganisms in a plant, reduce the water supply to a plant, promote flowering in a plant, and / or increase the population of plant growth-promoting rhizobacteria in the soil where a plant is grown.
Owner:VITANTECH BIOTECHNOLOGY SL

A method and engineering bacteria for improving the rhizosphere chemotaxis and colonization ability of PGPR

The present invention belongs to the field of molecular biology, and relates to plant growth-promoting rhizobacteria (PGPR), and in particular to a method and an engineered bacterium for improving the rhizosphere chemotaxis and colonization ability of PGPR. The present application discovered that at least one of the bacterial chemotaxis receptors has a pentapeptide in its C-terminal extension region, and the pentapeptide can mediate the interaction between the methyltransferase CheR and the methylesterase CheB involved in chemotaxis, and reversibly methylate the chemotaxis receptor. Grafting the pentapeptide onto the C-terminus of the chemotaxis receptor of a strong chemoattractant in the chemosphere of the PGPR can enhance its chemotactic response to the strong chemoattractant, thereby improving the rhizosphere chemotaxis and colonization ability of the PGPR.
Owner:HENAN AGRICULTURAL UNIVERSITY

Biomass component cleaning and separating and liquid fertilizer co-production method based on biogenic amine solvent system

The invention discloses a biomass component clean separation and liquid fertilizer co-production method based on a biogenic amine solvent system, biomass components can be disassembled under mild reaction conditions by using excellent lignin dissolving capacity of ethanolamine, lignin is selectively and efficiently removed, and the holocellulose retention rate of obtained filter residues is high. Meanwhile, due to good biocompatibility and low toxicity of the ethanolamine solvent, filter residues can be directly used for enzymolysis saccharification without a washing process; the lignin in the filtrate can be separated and recovered by adjusting the pH value through an acidic solution. The waste liquid after lignin recovery contains major elements such as N, P and K, and can be used as a liquid fertilizer; the strain can also be coupled with growth-promoting rhizobacteria such as pseudomonas putida and pseudomonas aeruginosa to prepare microbial fertilizers.
Owner:GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI

Bio-control bacterium for bighead atractylodes rhizome root rot and application thereof

PendingCN121699803ABiocideBacteriaBiotechnologyRhizobacteria
The invention discloses an atractylodes macrocephala root rot biocontrol bacterium and application thereof, and belongs to the technical field of plant disease biocontrol. The rhizoma atractylodis macrocephalae rhizosphere bacterium is separated from healthy rhizosphere soil of a compositae plant rhizoma atractylodis macrocephalae by adopting a rhizosphere bacterium separation and purification technology, is classified and named as Pantoea rodsii RSB15, is preserved in the China Center for Type Culture Collection, the address is Wuhan University, Wuhan, China, the preservation number is CCTCC NO: M20251954, and the preservation date is September 1, 2025. The invention also discloses application of the bacterium: the bacterium can effectively inhibit the growth of pathogenic bacteria of bighead atractylodes rhizome root rot, and the inhibition rate of plate confrontation culture reaches 20.57%; the morphological structure of pathogenic fungi can be destroyed. The bacterium provided by the invention has an obvious effect of preventing and treating bighead atractylodes rhizome root rot and provides a wide application prospect in the field of biological prevention and treatment of bighead atractylodes rhizome fungal diseases.
Owner:ZHEJIANG CHINESE MEDICAL UNIVERSITY

Application of iolE gene in improving the ability of plant growth promoting rhizobacteria to promote symbiotic nitrogen fixation

ActiveCN120775883BBiocidePlant growth regulatorsBiotechnologyRhizobacteria
The application discloses application of an iolE gene in improving the symbiotic nitrogen fixation capacity of plant growth promoting bacteria, and application of the iolE gene or a protein coded by the iolE gene in at least one of the following (a1)-(a3): (a1) improving the symbiotic nitrogen fixation capacity of plant growth promoting bacteria; (a2) improving the efficiency of nodule formation and nitrogen fixation of host plants by plant growth promoting bacteria assisting rhizobium; and (a3) constructing recombinant bacteria with improved symbiotic nitrogen fixation capacity. The discovery of the application can be used for targeted modification of a target gene iolE, and provides a theoretical basis for development of high-efficiency genetically engineered bacterial agents; can be applied to research on other PGPR functional genes, and promotes the development of agricultural microbial technology.
Owner:SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY +2

Halotolerant kushneria isolates and related products, systems, and methods for stimulating plant growth in saline conditions

PCT designated stage expiredWO2025151852A1BiocidePlant growth regulatorsBiotechnologyRhizobacteria
Disclosed are halotolerant Kushneria isolates and related products, systems, and methods for stimulating plant growth in saline conditions. Illustrative halotolerant Kushneria isolates include Kushneria sp. A3 and Kushneria sp. B5. Systems for adapting a plant for improved growth in salinated soil may include at least two strains of halotolerant rhizobacteria, such as Kushneria sp. A3 and Kushneria sp. B5. Illustrative products include the at least two strains of halotolerant rhizobacteria, such as Kushneria sp. A3 and Kushneria sp. B, and a diluent or spreading agent. Illustrative methods include applying at least two strains of halotolerant rhizobacteria, such as Kushneria sp. A3 and Kushneria sp. B, to soil having a salt concentration of about 1% w / v to about 10% w / v, and cultivating a plant in the soil.
Owner:SALT BLOCK INOCULUM LLC

Application of trichoderma asperellum MM7 in construction of drought-resistant banana rhizosphere microflora and improvement of banana drought resistance

PendingCN122038132AFungiBacteriaBiotechnologyRhizobacteria
The invention relates to the technical field of microorganisms, and particularly provides application of trichoderma asperellum MM7 in constructing a drought-resistant banana rhizosphere microflora and improving the drought resistance of bananas. The trichoderma asperellum MM7 inoculation can relieve the inhibition of drought stress on the growth of banana seedlings and improve the water content and survival rate of tissues; the root antioxidant enzyme activity is enhanced, the accumulation of osmotic regulation substances is promoted, and the membrane lipid peroxidation degree is reduced; the expression of ABA metabolism and signal channel related genes and aquaporin genes is up-regulated; a rhizosphere bacterial community structure under drought stress is remodeled, beneficial functional bacteria such as pseudomonas, streptomyces and nitrococcus are remarkably enriched, and the drought resisting function of the bacillus amyloliquefaciens depends on indigenous microbial communities. The invention reveals that the trichoderma asperellum MM7 provides a new strain resource for developing a banana drought-resistant biological agent based on microbiome regulation through a synergistic interaction mechanism of directly regulating host physiology and gene expression-indirectly remodeling rhizosphere beneficial microflora.
Owner:SANYA RES INST OF CHINESE ACAD OF TROPICAL AGRI +1

Nitrogen-fixing microbial fertilizer and preparation method thereof

PendingCN121021223ABio-organic fraction processingBacteriaCelluloseRhizobacteria
The invention relates to the technical field of fertilizers, in particular to a nitrogen-fixing microbial fertilizer and a preparation method thereof. The nitrogen-fixing microbial fertilizer is prepared from the following components in percentage: 2 to 5 percent of plant growth-promoting rhizobacteria fungicide, 2 to 5 percent of humic acid, 15 to 20 percent of straw powder, 15 to 20 percent of cellulose, 20 to 30 percent of wheat starch, 1 to 3 percent of nitrifying bacteria, 2 to 5 percent of indoleacetic acid and 10 to 15 percent of diatomite. The prepared nitrogen-fixing microbial fertilizer can effectively improve soil nitrogen circulation and promote organic nitrogen mineralization through the nitrogen-fixing microbial effect, the content of ammonium nitrogen and nitrate nitrogen in soil is increased, the nitrogen-fixing microbial fertilizer is especially suitable for improvement of barren soil, meanwhile, a stable nitrogen source can be directly provided, healthy growth of root systems, stems and leaves of plants can be promoted, and the yield of the plants is increased. Particularly, the growth speed and yield of crops can be remarkably improved in soil lacking nitrogen element, the use of chemical nitrogen fertilizer can be reduced, the fertilizer cost in agricultural production can be reduced, and the negative influence of the nitrogen fertilizer on the environment can be reduced.
Owner:GANSU AGRI UNIV

Nano-symbiotic catalyst

The nano-symbiotic catalyst described herein includes a mixture of a carbon source, water, microbes, a nano-sized organo-mineral complex known as Montmorillonite Alginate, and humic / fulvic acids. Microbes used in the nano-symbiotic catalyst may include microbes classified as Plant growth Promoting Rhizobacteria (PGPR) and Plant Growth Promoting Fungi (PGPF). The nano-symbiotic catalyst enhances the speed at which a beneficial microbe and plant form a symbiotically mutual relationship. Due to the nano-size and configuration of the nutrients, plant reception of these nutrients is increased while the amount of energy used to form this relationship and acquire beneficial nutrients is decreased. The nano-symbiotic catalyst may be used with multiple crops, soil types, and environmental conditions to reduce input costs and resources, increase agriculture production and quality, and enhance regenerative agriculture practices.
Owner:CLUFF DANIEL BLAKE +2