7 results about "Bacterial soft rot" patented technology

The present invention discloses the application of coumarin-3-carboxylic acid in preventing and treating plant bacterial diseases. The coumarin-3-carboxylic acid provided by the present invention has a significant inhibitory effect on plant bacterial diseases. The plant bacterial diseases are oryzae bacterial leaf blight, oryzae bacterial leaf streak, citrus canker, cantaloupe bacterial fruit spot, tomato bacterial wilt, strawberry bacterial angular leaf spot, cabbage black rot, cabbage soft rot, potato soft rot, mango bacterial angular leaf spot, cassava bacterial wilt, cucumber bacterial angular leaf spot, kiwifruit canker and banana bacterial soft rot. The coumarin-3-carboxylic acid provided by the present invention has protective and therapeutic effects on melon bacterial fruit spot.

The invention relates to the technical field of sweet potato planting, in particular to a seedling raising device for sweet potato seedling raising in winter, which comprises a seedling raising box, a seedling raising tray arranged in the seedling raising box, a drainage assembly arranged at the bottom of the seedling raising tray, a drainage tray arranged at the bottom of the seedling raising tray, an annular heating plate fixedly connected to the inner bottom wall of the drainage tray, and a controller in signal connection with the annular heating plate. A plurality of third springs are fixedly connected to the bottom of the water collecting tank, the bottoms of the third springs are fixedly connected with the inner bottom wall of the seedling raising box, a connecting rod is fixedly connected to one side of the top of the water collecting tank, and a ventilation opening is formed in the side, close to the circular ring, of the side wall of the seedling raising plate; opening-closing assemblies are arranged at the tops of the connecting rods; the distance between the breeding disc and the heating plate is automatically adjusted through the soil water content, meanwhile, water discharged from the breeding disc drives the connecting rods to ascend and descend to control opening and closing of the ventilation openings, and fungal diseases and bacterial soft rot of sweet potato seedlings caused by too high humidity in the breeding disc are prevented.

The application discloses a plant Lactiplantibacillus plantarum Yi-BC5 with a preservation number of GDMCC No: 67799, which shows strong inhibition on Pectobacterium carotovorum and Penicillium digitatum in vitro and in vivo, can significantly reduce the incidence and lesion diameter of pepper bacterial soft rot and citrus green mold; the Lactiplantibacillus plantarum Yi-BC5 can produce extracellular polysaccharide and other antibacterial metabolites, and the bacterial body and / or bacterial metabolite can be used for preparing products for inhibiting Pectobacterium carotovorum and / or Penicillium digitatum, and can be used for preparing products for preventing and treating bacterial diseases (including but not limited to pepper bacterial soft rot) and / or fungal diseases (including but not limited to citrus green mold) of fruits and vegetables. The Lactiplantibacillus plantarum Yi-BC5 can simultaneously control bacterial diseases and fungal diseases of fruits and vegetables after harvesting, has excellent disease control performance, provides an excellent antagonistic bacterial resource for postharvest preservation of fruits and vegetables, and lays a foundation for subsequent development of a new type of microbial bactericide.

Abstract:　Problem: To provide a soil-transmissible plant disease control agent or similar that can safely be used as a biological control agent.　Solution: A soil-transmissible plant disease control agent or similar, such as a vegetable bacterial wilt control agent, can be provided by using, as an active ingredient, live bacterial cells of a novel strain of a bacterium of the Bacillus or Fictibacillus genus with a heretofore unknown soil-transmissible plant disease controlling action, or a cultured product including said live bacterial cells. This control agent is characterized by being able, through a foliage application treatment, to control bacterial wilt and / or bacterial soft rot caused by the Ralstonia solanacearum species complex, which are soil-borne bacteria.　Selected drawing: none

This invention belongs to the field of biotechnology-assisted breeding and discloses a SNP marker for identifying resistance to bacterial soft rot in cucumber and its application. The SNP molecular marker of this invention is located at physical positions 13,925,944 bp on cucumber chromosome 2. Cucumber materials with a base of G at this site are resistant to bacterial soft rot, while cucumber materials with a base of A at this site are susceptible to bacterial soft rot. Using the SNP marker provided by this invention, the resistance of cucumber plants to bacterial soft rot can be rapidly and accurately identified during the seedling stage, enabling high-throughput screening of a large number of breeding materials. This method has advantages such as high detection efficiency and no limitation by environmental conditions, significantly improving the selection efficiency in disease-resistant breeding, shortening the breeding cycle, and providing an effective tool for marker-assisted selection breeding of cucumbers resistant to bacterial soft rot.

This invention proposes a copper-manganese layered bimetallic hydroxide nanomaterial, its preparation method, and its application, belonging to the field of agricultural pest control technology. The nanomaterial has an average hydrated particle size of 100-2000 nm, a negative zeta potential, and a copper-to-manganese molar ratio of 2.5-3.5:1. The nanomaterial exhibits excellent control effects against soft rot in calla lily plants, effectively inhibiting pathogen infection and disease spread. It possesses the advantages of low effective concentration and good persistence, providing a novel and highly efficient nano-antibacterial material for the green control of bacterial soft rot in plants. It also provides a theoretical basis and technical support for the application of layered bimetallic hydroxides in agricultural plant protection.

The invention belongs to the technical field of biological prevention and control of plant diseases, and discloses application of a flagellin protein glycosylation modified gene cluster and / or encoded protein thereof in prevention and control of banana bacterial soft rot, the flagellin protein glycosylation modified gene cluster comprises twelve genes, and the nucleotide sequences of the twelve genes are respectively SEQ ID NO: 1-SEQ ID NO: 12. The flagellin protein glycosylation modified gene cluster can weaken the motility of banana bacterial soft rot fungi and the pathogenicity to plants by enhancing the flagellin protein glycosylation modification level, and can be applied to development of a new bacterial disease prevention and control technology. And the gene can also be used as a target for monitoring genetic variation of interaction of pathogenic bacteria and hosts and generated virulence change so as to reduce the risk of bacterial epidemic diffusion, thereby providing a new strategy for prevention and control of bacterial diseases.