80 results about "Penicillium cainii" patented technology

The invention discloses paecilomyces lilacinus and a cultivating method thereof and applications thereof. The method comprises steps of: A. activation of paecilomyces lilacinus PL461, which comprises steps of: placing paecilomyces lilacinus PL461 bacterial strains on a PDA medium board, cultivating the paecilomyces lilacinus PL461 bacterial strains, and activating the paecilomyces lilacinus PL461 bacterial strains; B. liquid fermentation cultivation of the paecilomyces lilacinus PL461, which comprises steps of: putting the activated paecilomyces lilacinus PL461 bacterial strains into an Erlenmeyer flask containing a liquid medium of PDB and Czapek's, cultivating the above bacterial strains with shaking, and taking the above cultivated bacterial strains as standby; C. solid fermentation cultivation of the paecilomyces lilacinus PL461, which comprises steps of: mixing a solid fermentation cultivation medium uniformly according to a volume ratio, wherein the medium comprises dry compost rice bran, corn flour and water, putting the mixed medium into a domestic fungus culture bag, inoculating the paecilomyces lilacinus PL461 fermented bacteria solution into the solid fermentation cultivation medium employing culture dish fermentation after disinfection and cooling, and putting the above inoculated solid fermentation cultivation medium into a culture dish after stirring uniformly again to cultivate and take as standby; and D. preparation of a paecilomyces lilacinus bacteria agent from the solid phase culture according to a formula and the method. The paecilomyces lilacinus has an obvious lethal effect on nematode eggs, equipment is simple, production cost is reduced greatly, and the cultivating method is suitable for mass production of paecilomyces lilacinus.

The invention discloses a novel chitinase gene of nematode bio-control fungi lilac paecilomyces with a gene sequence table as seen in SEQ ID NO: 1, and meanwhile discloses a method for cloning the chitinase gene of the lilac paecilomyces. The method comprises the steps of using lilac paecilomyces RNA with highest enzyme activity as a template, designing and expanding a pair of degenerate primers to get the chitinase gene fragments of the lilac paecilomyces, obtaining gene 5' terminal and 3' terminal sequences from a lilac paecilomyces cDNA chain through SMART RACE RT-PCR technology, and connecting the three sequences to obtain a novel cDNA full-length sequence of the chitinase gene (PL Chil). The invention provides important technological base for transforming the chitinase gene of the lilac paecilomyces to other nematode bio-control fungi by using bioengineering technology, realizing the heterologous expression of the gene, and improving the expression quantity of the chitinase gene of the nematode bio-control fungi and the bio-control ability of plant nematodes.

The invention discloses a Paecilomyces thermophila mutant strain and a mutation induction method and application thereof. The mutation induction method includes: Paecilomyces thermophila screened from high-temperature-fermented compost and used for producing high-temperature-resistant and acid-resistant glucose oxidase is used as the original strain, protoplast ultraviolet and ethyl methane sulfonate compound mutation induction is performed, and the screened strain is subjected to budding spore diethyl sulfate-microwave compound mutation induction to obtain the Paecilomyces thermophila mutant strain. The Paecilomyces thermophila mutant strain is preserved in China General Microbiological Culture Collection Center on January 11th, 2016, and the preservation number of the mutant strain is CGMCC No. 13182. Compared with a conventional mutation induction method, the mutation induction method has the advantages that the method is high in efficiency and simple in fast in screening, the productivity of the mutant strain is high, the yield of the mutant stain is 277.65% of that of the Paecilomyces thermophila original strain, fermentation liquor enzyme activity reaches 185U/ml, production cost is lowered, and the glucose oxidase produced by the mutant strain is good in high-temperature resistance and acid resistance and can be used as feed enzyme applied to feed industry.

Aiming at the drawbacks of the prior art, the invention applies for providing a method for breeding a penicillium gene engineering bacterium having high lipase synthesis capability. The method comprises: obtaining a hygromycin-resistance expression box and cloning to a target plasmid to obtain a hygromycin-resistance plasmid; amplifying the lipase gene, namely primary effusion lymphoma (PEL), of the penicillium and the strong promoter, namely glyceraldehyde-3-phosphate dehydrogenase promoter PgpdA, of Aspergillus nidulans and tryptophan synthetase terminator TtrpC of the Aspergillus nidulans respectively to obtain a PEL gene expression box driven by the strong promoter; inserting the PEL gene expression box into the hygromycin-resistance plasmid to obtain a PEL gene super expression vector containing a hygromycin screening marker; and finally, transferring Agrobacterium rhizogenes by using the PEL gene super expression vector containing the hygromycin screening marker, and transferring the PEL gene expression box into a penicillium strain by using a Agrobacterium rhizogenes-mediated transfer method to obtain the penicillium gene engineering bacterium with high lipase expressing capability.

The invention relates to a nematicidal composition containing verticillium chlamydosporium and Paecilomyces lilacinus and a preparation method thereof. The nematicidal composition consists of the verticillium chlamydosporium and the Paecilomyces lilacinus, and also comprises a solvent, an aid and a stabilizer. The nematicidal composition comprises the following components in percentage by weight: 0.1 to 10 percent of verticillium chlamydosporium, 0.1 to 20 percent of Paecilomyces lilacinus, 1 to 15 percent of stabilizer, 5 to 15 percent of solvent, 1 to 10 percent of aid and 60 to 90 percent of carrier. The verticillium chlamydosporium and the Paecilomyces lilacinus are combined to achieve a synergistic effect, and a nematicidal effect is better; the verticillium chlamydosporium and the Paecilomyces lilacinus are bacterial parasites for nematode, a biocontrol technique is used, and is environment-friendly and safe, and problems that the nematode has resistance to pesticides, a development cycle for a new pesticide is long and the like are solved; and the verticillium chlamydosporium and the Paecilomyces lilacinus can promote the growth of plants to achieve effects of increasing production and value.

The invention discloses a preparation method of paecilomyces lilacinus spore powder. The method comprises the following steps of: (1) preparing a paecilomyces lilacinus liquid fermentation broth; (2) recovering conidia from the paecilomyces lilacinus liquid fermentation broth; and (3) drying the recovered paecilomyces lilacinus conidia to obtain the paecilomyces lilacinus spore powder. According to the invention, the technological parameters for preparing paecilomyces lilacinus spore powder are screened and optimized to obtain optimal technological parameters for preparation, thus the yield and product quality of paecilomyces lilacinus spores are effectively improved. The preparation method of paecilomyces lilacinus spore powder, disclosed by the invention, has the advantages of high recovery rate, high spore content, high live spore rate, low water content and the like, and conforms to the requirements of large-scale industrial production.

The invention discloses a novel Penicillium sp. HS-NF-684Z, deposit No. CGMCC No. 14144; also disclosed is a method for preparing fumiginin or a pharmaceutical composition containing fumiginin by culturing the same.

The invention discloses a Verticillium Paecilomyces varioti strain. When the strain is treated on a czapek's medium at 25 DEG C for 14 days, the bacterial colony has a diameter of 35-55 mm, is raised, is of white villus, is in an irregular shape and has a white back side. Hyphae have a width of 1.2-1.8 mu m and can form conidiophores with a length of 9.6-19.8 mu m, majority of the phialides are cylindrical or tapered and are often whorled or alternate and grow on aerial hyphae in opposite, the hyphae gradually or suddenly tapers upwards and have a thin neck of 7.8-14.4*1.2-2.4 mu m, and the length is almost 1.2 times longer than that of the base of the Verticillium Paecilomyces varioti. The conidiophores are transparent and smooth and can be distinctly divided into two spores with different sizes, wherein the macro spores are in the shape of fusiformis or ellipse and have a size of 1.8-3.0*1.8-2.4 mu m, and the micro spores are subglobose or elliptic, have a size of 1.2-1.8*0.6-1.2 mu m and can form a linear chain or cluster. The invention also discloses an application of the Verticillium Paecilomyces varioti strain. The strain can be used for producing Cordycepin by fermentation and has the advantages of easy culture, storage and industrial production.

The invention relates to the technical field of biological strains, particularly a Paecilomyces variotii strain and application thereof. The Paecilomyces variotii strain MM2 is collected to the China General Microbiological Culture Collection Center on July 8th, 2013, and the collection number is CGMCC No.7903. The application method comprises the following steps: adding the strain into any of straw-bran liquid culture medium, filter paper-inorganic salt liquid culture medium or PDA (potato dextrose agar) liquid culture medium, and culturing at 28-30 DEG C for 2-9 days to obtain the single-strain solid microbial inoculant. The Paecilomyces variotii strain can efficiently degrade and utilize cellulose, can be used as an external strain source for recycling lignocellulose solid waste, and can accelerate the degradation of the cellulose; the Paecilomyces variotii strain is separated from wine sediment compost and applied to wine sediment compost, thereby avoiding the problem of difficulty in assessment; and after being added, the microbial inoculant containing the strain effectively promotes the rotting of the wine sediment compost and accelerates the processing of the organic fertilizer.

The invention discloses application of a biocontrol bacterium paecilomyces fumosoroseus strain capable of expressing green fluorescent protein (GFP) to the targeted pest epidemiology. According to the biocontrol bacterium, through protoplast transformation technology, an expression plasmid vector pCT74-GFP with green fluorescent protein marks is converted into a genome of the paecilomyces fumosoroseus strain FZ01, and the biocontrol strain FZ01-GFP capable of expressing the GFP is obtained. The bacterial strain is used for researches on the targeted pest epidemiology, the biocontrol strain FZ01-GFP is released, collection is conducted at a fixed time and location, the number of targeted pests is recorded, sick pest samples are collected, PCR molecular detection identification is conducted on the sick pest samples through a pair of specific primers of the plasmid vector pCT74-GFP, data are analyzed, and the plasmid vector pCT74-GFP and tendency of targeted pest infection of the biocontrol strain FZ01-GFP are determined; the problem that it is difficult to identify the pathogenesis of the targeted pests in the researches on the biocontrol bacterium epidemiology in the prior art is solved; the application has the advantages of being simple in step, convenient to operate and capable of effectively monitoring and objectively reflecting the targeted pest occurrence and development rules of the biocontrol bacterium paecilomyces fumosoroseus strain and the like.

The invention provides a Paecilomyces lilacinus granule. The Paecilomyces lilacinus granule comprises 5-15 parts of a medicinal active component which is Paecilomyces lilacinus, 10-25 parts of an assistant, 50-90 parts of a medicine carrier and 15-25 parts of water. The effective spore amount of the Paecilomyces lilacinus granule is 1.8-2.2 * 10<8> cfu/g, the competitor rate is not greater than 0.1%, and the shedding rate is not greater than 3%. The Paecilomyces lilacinus granule has the advantages of high efficiency, low toxicity, stable insecticidal effect, safety to people, animals and crops, and high safety. An experiment result shows that the control effect of Paecilomyces lilacinus reaches up to 78% or above.

The invention provides paecilomyces fumosoroseus oil which comprises the following components in percentage by mass: 30-50% of paecilomyces fumosoroseus, 15-40% of a solvent, 2-20% of an emulsifier, 2-40% of an adsorbent, 1-10% of an ultraviolet absorbent, 1-10% of an antioxidant and 2-20% of a dispersing agent. The paecilomyces fumosoroseus oil prepared by the invention is respectively stored in environments at the temperature of 4 DEG C and 25 DEG C, the germination rate is determined every six months, and the germination rate within 24 months is respectively 90.4% and 82.9%. The paecilomyces fumosoroseus oil prepared by the invention has an insect dropping rate of 69.1-86.0%.

The invention discloses a strain of Penicillium fungus M1 and application thereof to increase of saponins yield in a fermentation process of ginseng or American ginseng, and belongs to the technical field of biotechnology. According to the invention, functional fungus is used for fermentation cultivation of ginseng or American ginseng; the content of saponins before and after the fermentation are analyzed and compared; and finally a bacterial strain capable of significantly increasing saponins yield in the fermentation process of the two herbs is obtained. The strain is identified as Penicillium fungus (Penicillium sp.), and named after Penicillium fungus M1, and has a preservation number of CGMCC NO.6359. The strain can be used in fermentation production of ginseng or American ginseng; and the content of saponins in fermentation products fermented by the strain is greatly improved. Therefore, according to the present invention, Penicillium fungus has broad application prospects in increasing saponins yield in the fermentation process of ginseng or American ginseng.

The invention aims to provide a strain for preventing and treating myzus persicae. The preservation number of the strain is CGMCCNO. 11659. The mfn21 strain obtained by the invention has a biological activity on the myzus persicae, and can be applied to prevention and treatment of the myzus persicae on tobacco. A bioassay adopting a micro-drop method shows that the lethality of a secondary metabolite in a fermentation broth to the myzus persicae can reach up to 97.78%. After chemical analysis and structural identification by adopting GC/MS is performed, the secondary metabolite comprises seven main compounds including two alkaloid compounds, two ester compounds, a glycoside compound, a peptide compound and an alcohol compound.

The invention belongs to the technical filed of microbes, and concretely relates to Penicillium ochrochloron and its application in the preparation of brefeldin A. A technical problem to be solved in the invention is providing a new choice for production of BFA through biological fermentation. A bacterial strain produced in the invention is Penicillium ochrochloron SWUKD4.211, and has a preservation number of CCTCC M2015022. The invention also provides a method for producing the BFA by adopting Penicillium ochrochloron fermentation. The BFA production ability of the bacterial strain obtained through the method can reach 356.0mg/L, and the method provides a new choice for the production of the BFA, provides a precisou strain for biological pharmacy, and has great application values.

The invention belongs to the field of biotechnology, and relates to a penicillium expansum strain for degrading liquor distillers' grain cellulose. The penicillium expansum strain for degrading liquor distillers' grain cellulose is named penicillium expansum N53. The penicillium expansum N53 provided by the invention can degrade cellulose in liquor distillers' grains into glucose, has the characteristics of high cellulase activity, high conversion rate from cellulose into glucose and the like, greatly improves the utilization rate of the liquor distillers' grains, provides guarantee to follow-up generation of protein feed, and is a liquor distillers' grain cellulose degrading strain with great values in research and development. Few researches are available about fermenting and degrading the liquor distillers' grain cellulose by use of penicillium expansum.

The invention relates to a nematicidal composition containing fluensulfone and paecilomyces lilacinus. The composition contains the paecilomyces lilacinus, wherein the weight ratio of the paecilomyces lilacinus to the fluensulfone is (1 to 80) to (100 to 1). Two active components of the composition disclosed by the invention synergistically interact; by interaction of the two components, a control effect can be improved, and the dosage of pesticide is reduced; in addition, the nematicidal composition is safe to environment, and is worthy of being popularized and applied.

The invention provides a liquid fermentation method of paecilomyces lilacinus. The method comprises the steps of activation of culture, expanding cultivation of culture and fermentation. According to the fermentation step, an adopted fermentation medium comprises cottonseed cake powder, kieselguhr, yeast extract powder, sweet potato powder, white granulated sugar, fish peptone, olive oil, mannitol, magnesium sulfate, copper sulfate, polysorbate 20, calcium hydrophosphate, boric acid, bile salt, tyrosine, manganese dioxide and deionized water. According to the step of activation of culture, an adopted medium for activation of culture comprises algal polysaccharides, sorbitol, beef extract, asparagine, brochantite, manganese dioxide, sodium chloride, calcium chloride, boric acid, ferric citrate, mannitol, agar and deionized water. According to obtained paecilomyces lilacinus fermentation liquid, the content of spores is 4.1*10<9>-4.4*10<9>/g.