7 results about "Paecilomyces spectabilis" patented technology

The invention discloses application of pseudopenicillin variotii in preparation of a resistance inducer for preventing and treating plant diseases, and belongs to the technical field of plant protection. The invention provides an application of Panax variotii in prevention and treatment of plant diseases, the application concentration of the Panax variotii is 0.1 microgram / mL-1 microgram / mL, a plant resistance inducer containing the Panax variotii can be sprayed on plant leaves or fruit surfaces and has a remarkable prevention effect on anthrax leaf blight, and the higher the concentration is, the better the prevention effect is; the pseudopenicillin variotii can promote synthesis or activity improvement of catalase, peroxidase, polyphenol oxidase, glutathione S-transferase and superoxide dismutase in apple bodies, and also can remarkably induce up-regulation expression of disease-resistant related genes such as MdPR2 and MdPR5, so that the disease resistance, the antioxidant level and the plant immunity of apples are enhanced; a novel and efficient plant resistance inducer application scheme is provided for apple disease control and physiological regulation.

This invention discloses the application of *Penicillium wani* in improving wheat's resistance to salt-alkali stress and a method for planting wheat in saline-alkali land, belonging to the field of crop cultivation technology. This invention has the advantages of simple operation, rapid processing, and excellent results. The specific method is as follows: during the sowing period, wheat seeds are treated with a low concentration (1 μg / ml) of *Penicillium wani* solution. This treatment can improve wheat's resistance to salt stress at concentrations up to 0.3% and salt-alkali stress at 75 mM (pH 9.2), thereby increasing wheat yield. This invention is applicable to the cultivation of wheat and other crops and has broad prospects for widespread application.

The application belongs to the technical field of brewing, and relates to application of Paecilomyces wanensis in lactic acid degradation and a method for degrading lactic acid, which comprises the step of adding Paecilomyces wanensis to a fermentation substrate. The application utilizes the mold Paecilomyces wanensis to degrade lactic acid in the fermentation substrate and achieves a good lactic acid degradation effect, further enriches the role of molds in the stacking stage of the solid-state fermentation process of baijiu, provides a reference for the mechanism research of microbial action in the baijiu brewing process, and the strain used is screened from the fermentation environment of fermented grains and does not affect the brewing process.

The invention relates to the technical field of agricultural breeding, in particular to a meadow grass-endophytic fungus symbiont construction method which comprises the following steps: culturing meadow grass aseptic seedlings; purifying and culturing an LE3 endophytic fungus strain; inoculating the LE3 endophytic fungi to the sterile seedlings of the poa pratensis; transplanting the inoculated seedlings; carrying out endophytic fungus detection on the inoculated seedlings; growing in a field: transplanting the seedlings with bacteria to the field. When the symbiont is constructed, an LE3 strain which only generates insect-resistant alkaloid and does not generate alkaloid harmful to livestock is selected. The agronomic characters of the obtained symbiont are remarkably improved compared with those of a control group. Wherein after the host plant is infected by the LE3 strain, the plant height, stem diameter, leaf length, leaf thickness, potassium element content and soluble sugar content of the host plant are obviously increased. Wherein the plant height, the stem diameter, the leaf length and the leaf thickness are respectively increased by 14.18%, 26.18%, 12.16% and 5.06%, and the potassium content and the soluble sugar content are respectively increased by 90.49% and 89.00%.

The invention discloses a cedarane ketone hydroxy-oxalaxyl ester derivative as well as a preparation method and application thereof, and belongs to the technical field of agricultural chemistry. The structure of the derivative is shown as a formula I, wherein R is selected from groups shown as E1-E13. According to the invention, safe and non-toxic cedarane ketone is used as a raw material, and oximation and esterification reactions are carried out to prepare a target derivative. The series of derivatives show remarkable and broad-spectrum inhibitory activity on various plant pathogenic fungi, especially phomopsis kiwifruit, valsa mali, verticillium dahliae, mucor and paecilomyces variotii, and the activity of the compound E8 is most prominent. The derivative disclosed by the invention can be used as an active ingredient for preparing a pharmaceutical composition for preventing and treating fungal diseases of plants, and a new choice is provided for developing efficient, low-toxicity and environment-friendly botanical pesticides.

The invention discloses a method for preparing an extract rich in ginsenoside Rd by fermenting pseudo-ginseng with paecilomyces farinosus, and belongs to the technical field of microbial fermentation. The method specifically comprises the following steps: crushing and sieving pseudo-ginseng main roots, pseudo-ginseng incisions and pseudo-ginseng stems and leaves, collecting powder with different granularities, and mixing the powder with different granularities to obtain pseudo-ginseng main root coarse powder, pseudo-ginseng incisions coarse powder and pseudo-ginseng stem and leaf coarse powder; preparing pseudo-ginseng powder; preparing a pseudo-ginseng culture medium; the preparation method comprises the following steps: co-culturing paecilomyces farinosus and a pseudo-ginseng culture medium to obtain a fermented suspension culture; the preparation method comprises the following steps: dissolving panax notoginseng into a suspension culture, evaporating the suspension culture to remove water to obtain panax notoginseng plastid, performing reflux extraction on the panax notoginseng plastid, concentrating an extracting solution to obtain extract, dissolving the extract with water, adsorbing an aqueous solution of the extract into resin, eluting, concentrating an eluent, and drying to obtain the extract rich in ginsenoside Rd. The method disclosed by the invention has the advantages of simplicity in operation, no environmental pollution and high efficiency.

This invention discloses a bamboo vinegar powder extract and its identification method and application. The bamboo vinegar powder extract contains at least one of pyrogallol, 4-methylcatechol, p-hydroxyphenylethanol, p-methylbenzoic acid, dihydrocaffeic acid, and 1,4-dibenzene. Among them, 4-methylcatechol and p-methylbenzoic acid have broad-spectrum antifungal effects, exhibiting very good antifungal activity against Aspergillus terreus CICC40377, Trichoderma longibrachiatum CICC40380, and Paecilomyces variotii CICC40716.