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10 results about "Paecilomyces variotii" patented technology
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Paecilomyces variotii is a common environmental mold that is widespread in composts, soils and food products. It is known from substrates including food, indoor air, wood, soil and carpet dust. Paecilomyces variotii is the asexual state of Byssochlamys spectabilis, a member of the Phylum Ascomycota (Family Trichocomaceae). However, the Byssochlamys state is rarely observed in culture due to the heterothallic nature of this species (i.e., it requires culturing of positive and negative strains in co-culture to produce the teleomorph). Paecilomyces variotii is fast growing, producing powdery to suede-like in colonies that are yellow-brown or sand-colored. It is distinguishable from microscopically from similar microfungi, such as the biverticillate members of the genus Penicillium (affiliated with the genus Talaromyces) by its broadly ellipsoidal to lemon-shaped conidia, loosely branched conidiophores and phialides with pointed tips. Ascospores of the sexual state, B. spectabilis, are strongly heat-resistant. As such, the fungus is a common contaminant of heat-treated foods and juices. It is also known from decaying wood and creosote-treated wood utility poles. Paecilomyces variotii has been associated with a number of infective diseases of humans and animals. It is also an important indoor environmental contaminant.
Application of pseudopenicillin variotii in preparation of resistance inducer for preventing and treating plant diseases
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.
Owner:SHANDONG PENGBO BIOTECHNOLOGY CO LTD
Paecilomyces variotii in improving salt-alkali stress resistance of wheat and a wheat planting method in saline-alkali land
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.
Owner:TAIAN MAIYUAN SEED IND CO LTD +1
Application of paecilomyces variotii in lactic acid degradation
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.
Owner:KWEICHOW MOUTAI COMPANY
Phosphorus-solubilizing fungus, fungicide and application thereof
The invention discloses a phosphorus-solubilizing fungus, a fungicide and application thereof, and belongs to the technical field of environment and agricultural biology. The phosphorus-solubilizing fungus disclosed by the invention is classified and named as Penicillium stokii, and is preserved in the China General Microbiological Culture Collection Center (CGMCC) on January 8, 2025, and the preservation number is CGMCC NO: 41749; the phosphorus solubilizing amount of the strain reaches more than 700 mg / L; the total concentration of secreted organic acid exceeds 5000 mg / L; the concentration of secreted exopolysaccharides reaches 5.68 mg / L; the insoluble phosphorus is directly dissolved by continuously secreting organic acid at normal temperature and normal pressure, and the secreted exopolysaccharide delays the reprecipitation of soluble phosphorus into calcium phosphate, so that the breakthrough of dual mechanisms of in-situ dissolution and in-situ fixation prevention is realized, the problems of strong acid pollution of a chemical method and high energy consumption of a physical method are fundamentally avoided, and the method is suitable for industrial production. The utilization efficiency of phosphorus is also remarkably improved; and the soil health condition is synergistically improved.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY +1
Method for constructing meadow grass-endophytic fungus symbiont
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%.
Owner:LANZHOU UNIV
Preparation method of organosilicon heat-resistant primer
The invention belongs to the technical field of organosilicon heat-resistant primer, and particularly relates to a preparation method of organosilicon heat-resistant primer. The invention relates to a preservative. The preservative is prepared by compounding DCOIT and geraniol according to a mass ratio of (2-4): 1. The preservative prepared by compounding the DCOIT and the geraniol has a combined synergistic effect on various moulds such as aspergillus niger, aspergillus flavus, cladosporium cereus, paecilomyces varioti, penicillium citrinum, trichoderma viride, aureobasidium pullulans and alternaria alternata, and compared with single use of the DCOIT, the preservative has the advantages that the inhibition effect on the moulds can be improved; further, the microbial damage resistance of the coating such as the organosilicon heat-resistant primer can be improved, and the shelf life of the coating can be prolonged. Meanwhile, the dosage of DCOIT can be reduced, and harm to the human body is avoided.
Owner:GUANGXI NANNING WEIYI ANTISEPTIC TECH CO LTD
Cedrysanone hydroxylaxyl ester derivative as well as preparation method and application of cedrysanone hydroxylaxyl ester derivative
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.
Owner:THE KEY LAB OF CHEM FOR NATURAL PROD OF GUIZHOU PROVINCE & CHINESE ACADEMY OF SCI
Method for preparing ginsenoside Rd-rich extract by fermenting pseudo-ginseng with paecilomyces farinosus
PendingCN121915128AGlycoside steroidsMicroorganism based processesBiotechnologyPaecilomyces variotii
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.
Owner:WENSHAN UNIV
Method for pretreating straw to produce alcohol by using artificial multicellular system
The invention discloses a method for producing alcohol by pretreating straws by using an artificial multicellular system, and belongs to the technical field of microbial fermentation degradation. The artificial multi-cell system is composed of trichoderma reesei (Trichoderma reesei), Phanerochaete chrysosporium (Phanerochaete chrysosporium) and Paecilomyces variotii (Paecilomyces variotii), and the artificial multi-cell system is characterized in that the artificial multi-cell system is prepared from the following raw materials: Trichoderma reesei, Phanerochaete chrysosporium (Phanerochaete chrysosporium (Phanerochaete chrysosporium) and Paecilomyces variotii. The method for pretreating the straw to produce the alcohol by using the artificial multicellular system comprises the following steps: (1) crushing the straw, drying and sterilizing; (2) mixing 10 to 20 milliliters of nutrient solution with 4 to 6 grams of sterilized straws; and (3) firstly adding 0.8-1.2 mL of paecilomyces variotii seed solution into a container, mixing 3-5 mL of trichoderma reesei seed solution and 0.8-1.2 mL of phanerochaete chrysosporium seed solution with the substrate in the step (2), covering the bottom of the container with the mixture, sealing, and standing and fermenting at 27-29 DEG C for 10-14 days. Effective degradation of the lignocellulose and ethanol production can be realized through simple pretreatment, complicated pretreatment of the lignocellulose is not needed, and the production cost and the process complexity are reduced.
Owner:DALIAN UNIV OF TECH
A bamboo vinegar powder extract, a method for identifying effective components thereof, and applications thereof
ActiveCN116286066BComponent separationPyroligneous acid productionBiotechnologyPaecilomyces variotii
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.
Owner:XIAMEN MEDICAL COLLEGE