5 results about "Chitinase activity" patented technology

The invention relates to the field of insect prevention and control, in particular to a high-stress-resistance beauveria bassiana strain CIPPBb075 with high pathogenicity to grassland caterpillars and application of the high-stress-resistance beauveria bassiana strain CIPPBb075. According to the invention, diseased insects parasitized by beauveria bassiana are collected from a field, and the strain is separated and purified, so that the CIPPBb075 strain has relatively high toxicity to grassland caterpillar; the germination rate is increased along with temperature rise, and the spore germination rate is obviously higher than that of other strains; the ultraviolet resistance at 25 DEG C is high; the extracellular protease activity is high; the activity of extracellular chitinase is high. Therefore, the CIPPBb075 strain has relatively strong stress resistance, and can be used as an effective microbial agent for preventing and treating the larvae of the grassland caterpillar compared with other strains.

The present application relates to the field of insect control, in particular to a strong stress-resistant Beauveria bassiana strain CIPPBb075 with high pathogenicity to lema frisoni and its application. The present application is collected from the field by the diseased insects parasitized by the Beauveria bassiana, and the strain is separated and purified, the CIPPBb075 strain has high virulence to lema frisoni; the germination rate increases with the increase of temperature, and the spore germination rate is significantly higher than that of other strains; the ultraviolet resistance is high at 25 DEG C; the extracellular protease activity is high; the extracellular chitinase activity is high. Therefore, the CIPPBb075 strain has strong stress resistance and other strains, and can be used as an effective microbial source drug for controlling lema frisoni larvae.

The application discloses two strains of endophytic bacillus and application thereof in promoting plant growth and resisting blue-rot disease, and belongs to the field of plant growth promoting bacteria. The two strains of endophytic bacillus are isolated from tissue samples of healthy Pinus tabulaeformis and identified as bacillus, and the microbial preservation numbers thereof are CGMCC No. 37659 and CGMCC No. 37660 respectively. The two strains of bacillus both show strong inhibitory activity to a pathogenic fungus of blue-rot disease and can produce siderophores; one of the strains has the ability to produce IAA and does not have chitinase activity; the other strain does not produce IAA but produces chitinase; the two strains of bacillus have both commonness and complementarity in function, and the combination of the two strains can effectively promote the early germination of Pinus tabulaeformis seeds, significantly increase the biomass of Pinus tabulaeformis and significantly improve the resistance of the host plant to blue-rot fungus L. procerum , and has a significant prevention and treatment effect on the blue-rot disease of the plant caused by the blue-rot fungus.

In the present invention, chitinase enzymes are provided. Additionally, compositions comprising chitinase enzymes and methods of making and using chitinase enzymes are provided.

The present application relates to the technical field of microorganism, and particularly relates to a conical arthrobotus AC-ChiE01 strain and application thereof. The present application provides a conical arthrobotus AC-ChiE01 strain, the chitinase activity of the strain is significantly higher than that of a wild type strain, and the predation efficiency on the second instar larvae of horse roundworm is also significantly improved compared with the wild type strain. In addition, the conical arthrobotus AC-ChiE01 strain provided by the present application has good growth characteristics, and the sporulation capacity of the strain does not have obvious disadvantages compared with the wild type strain, and the conical arthrobotus AC-ChiE01 strain has a broad application prospect in the biological control of livestock digestive tract nematodiasis.