44 results about "Hyphal growth" patented technology

The invention relates to a radix scutellariae self-assembled nanoparticle and terbinafine co-loaded nanoparticle as well as a preparation method and application thereof, and belongs to the technical field of drug nanoparticles. The preparation method comprises the following two steps: preparing scutellaria baicalensis self-assembled nanoparticles, and preparing the scutellaria baicalensis self-assembled nanoparticles and terbinafine co-loaded nanoparticles. The co-loaded nanoparticles are prepared by the preparation method. The invention also discloses application of the co-loaded nanoparticles in treatment of dermatophytosis. The invention has the following advantages: the saturation solubility of baicalin (BCN) and terbinafine (TBF) is increased; the dissolution rate of the terbinafine (TBF) is obviously improved; the antibacterial effect of the TBF is improved; hypha growth, biomass generation and spore germination of three kinds of trichophyton of trichophyton rubrum, trichophyton mentagrophytes and microsporum canis can be inhibited.

The invention belongs to the technical field of biology, and particularly relates to application of serine in relieving heat stress of pleurotus ostreatus and a method. Under the heat stress condition, exogenous serine supply promotes pleurotus ostreatus hypha to recover growth, and the activity of antioxidant enzyme, the yield of sporocarp and the yield of nutrient substances are improved; when the activity of the PHGDH enzyme is inhibited, the serine synthesis is reduced; the hypha growth can be promoted by overexpressing the phgdh, and the enzymatic activity of the PHGDH can be improved; when acetyltransferases HAT, NAT1, NAT2 and NAT3 act on a K394 site of the PHGDH, the enzyme activity of the PHGDH can be improved, endogenous serine metabolism is activated to respond to heat stress, it is indicated that PHGDH-mediated serine metabolism plays an important role in corresponding heat stress of the pleurotus ostreatus, and the invention discloses a mechanism for improving heat resistance of the pleurotus ostreatus through the PHGDH-mediated serine metabolism. And a foundation can be laid for breeding high-temperature-resistant pleurotus ostreatus dominant strains.

The invention discloses bacillus atrophaeus YL84, a microbial agent and application, and belongs to the technical field of microorganisms. The strain is preserved in the China Center for Type Culture Collection on February 20, 2025, the preservation address is Wuhan University, Wuhan, China, and the preservation number is CCTCC NO: M 2025267. Sterile fermentation filtrate of the strain YL84 can effectively inhibit germination of conidia and growth of mycelia of valsa ceratosperma of Korla pear trees, can play a good role in preventing in-vitro branches and potted pear seedlings, in addition, the strain can secrete protease and cellulase and synthesize siderophores, has the capacity of dissolving inorganic phosphorus and producing IAA at the same time, and has a good application prospect. The strain has a remarkable antagonistic effect on five common plant pathogenic fungi in the Xinjiang Uygur autonomous region and is wide in antibacterial spectrum.

The utility model relates to the technical field of strain culture, and particularly discloses an anti-extrusion strain culture basket which comprises a placement base, side frames are fixedly connected to the two sides of the top end of the placement base, two limiting devices are movably connected to the outer surface of one side frame in a penetrating mode, and the placement base comprises a base, a sliding groove, a limiting rod and a sliding seat. The number of the sliding grooves and the number of the limiting rods are respectively three, each set of sliding grooves and the number of the limiting rods are respectively two, the three sets of sliding grooves are formed in the top end of the base at equal intervals, the three sets of limiting rods are movably connected into the three sets of sliding grooves in a penetrating and penetrating mode, the limiting device comprises a movable frame, a connecting pipe, a supporting seat and limiting grooves, and the movable frame is fixedly connected to the outer surface of the connecting pipe in a penetrating and penetrating mode; the strain bags placed on the base are limited through the limiting device, contact between the strain bags is avoided, the air circulation efficiency is improved, hyphae are prevented from being squeezed in the growth process, and the consistency and quality of hypha growth are improved.

The invention relates to the technical field of hypha image processing, and discloses an image super-resolution reconstruction method for a hypha topological structure. The method comprises the following steps: acquiring a low-resolution topological image of a hypha sample and extracting an initial resolution matrix; performing topological structure correction on the initial matrix based on a preset hypha structure feature library to generate a first correction resolution matrix; and dynamically enhancing the data through a hypha growth simulator, and outputting a target resolution matrix. Meanwhile, an actual topological image is collected, an actual resolution matrix is extracted, and when the structural difference degree of the two exceeds a threshold value, a first deviation matrix is generated and the target matrix is iteratively adjusted to obtain a first adjustment matrix; and taking the adjustment matrix as a new target matrix, repeating the dynamic enhancement step until the structural difference degree is smaller than a threshold value, and realizing high-precision hypha topological image reconstruction. According to the method, the accuracy of hypha topological image super-resolution reconstruction is improved through feature library correction, dynamic enhancement and iterative adjustment.

The invention discloses a root system-hypha growth barrier and biological effect dynamic monitoring device and method.The root system-hypha growth barrier and biological effect dynamic monitoring device comprises three independent barrier devices, each barrier device comprises an outer barrier net, an inner barrier net and a bottom net, the outer barrier nets of the three independent barrier devices are consistent in specification, and the inner barrier nets of the three independent barrier devices are not consistent in specification; the outer blocking net blocks external root systems and hyphae from entering, the three inner blocking nets allow the root systems and the hyphae to penetrate through, only the hyphae can penetrate through, the root systems and the hyphae cannot penetrate through the inner nets, and therefore different blocking effects and directional research on the target root systems of a certain tree species are achieved. Soil nutrient sensors are arranged in the same direction between the inner net and the outer net of each independent blocking device, corresponding root system and hypha effect long-term dynamic monitoring is achieved through subtraction of carbon-nitrogen-phosphorus cycle related indexes of soil samples in the three independent blocking devices, the root system and fungal biomass is measured, and through a calculation formula, the root system and fungal biomass can be obtained. The root system effect and the hypha effect are quantified to unit biomass.

The invention provides a streptomyces flavogriseus C-21 strain, which is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the registration number of the streptomyces flavogriseus C-21 strain is CGMCC No. 36050. The preparation method of the sterile fermentation filtrate of the streptomyces fulvus C-21 comprises the following steps: inoculating a strain C-21 to an oat culture medium plate in a streak manner, culturing for 7 days at 28 DEG C, scraping spores on the surface of the culture medium, adding sterile water to prepare a spore suspension with the concentration of 108 / mL, inoculating the spore suspension into a millet immersion culture solution according to the inoculum size of 2%, and culturing for 7 days at the temperature of 28 DEG C to obtain the sterile fermentation filtrate of the streptomyces fulvus C-21. Performing shaking culture for 7 days in a constant-temperature shaking table at the temperature of 28 DEG C and the speed of 180 r / min, centrifuging for 30 minutes at the speed of 12000 r / min, and filtering supernate by using a 0.22 mu m microporous filter membrane to obtain sterile fermentation filtrate. The streptomyces fulvus C-21 can generate extracellular enzymes such as cellulase, protease and amylase, sterile fermentation filtrate of the streptomyces fulvus C-21 can destroy mycelial morphology and cell membrane integrity of the tomato late blight bacteria, mycelial growth, sporangium germination and zoospore release of the tomato late blight bacteria are remarkably inhibited, and the streptomyces fulvus C-21 has a good control effect on the tomato late blight.

The invention belongs to the technical field of microorganisms, and particularly relates to application of an oyster mushroom small heat shock protein (PoHSP20-6) gene in regulation and control of hypha heat resistance and a method for constructing an overexpression PoHSP20-6 gene oyster mushroom strain, and the nucleotide sequence of the PoHSP20-6 gene is shown as SEQ ID NO: 1. According to the invention, through a PoHSP20-6 overexpression vector, a PoHSP20-6 gene overexpression oyster mushroom strain is constructed and obtained. And it is proved that the hypha growth recovery capability of the overexpressed oyster mushroom strain under 40 DEG C high temperature stress is significantly improved, and the high temperature tolerance is significantly enhanced. The PoHSP20-6 gene and the oyster mushroom strain overexpressing the PoHSP20-6 gene provide key gene resources and technical support for fungus stress resistance breeding, can effectively solve the problem of poor hypha growth caused by high temperature stress in edible fungus cultivation, and have important application value in the edible fungus industry.

The invention discloses an intelligent identification method for hypha growth characteristics in a recovery period of factory-like bottle cultivation produced edible mushrooms, and relates to the technical field of modern facility agriculture. Comprising the following steps: shooting on-site growth RGB images of hyphae at t moment in a bottle cultivation production edible fungus recovery period; performing water drop interference and fuzzy detection and processing on the RGB image to obtain a clear RGB image; carrying out blue light interference processing on the clear RGB image; an improved top cap self-adaptive binarization method is adopted, and a background-free hypha binarization image is obtained through accurate segmentation and extraction; and generating a gray histogram of the background-free hypha binary image, reading the distribution frequency number Gt of white pixel points with the pixel value of 255, and calculating hypha growth characteristics in the recovery period according to the Gt. According to the method, the growth characteristics of the bottle cultivation production edible fungi in the recovery period can be accurately calculated, and a phenotypic characteristic basis is provided for fruiting intelligent cultivation and mushroom house precise management and control of factory-like bottle cultivation production edible fungi.

The invention discloses beauveria bassiana QSE-F1 and application of the beauveria bassiana QSE-F1 in preparation of a biological preparation for preventing and treating botrytis cinerea. The beauveria bassiana QSE-F1 is a plant endophyte separated and screened from tomato stems, the classification name of the beauveria bassiana QSE-F1 is Beauveria bassiana, the beauveria bassiana QSE-F1 is preserved in the China Center for Type Culture Collection, and the preservation number of the beauveria bassiana QSE-F1 is CCTCC NO: M 20241661. A bacterial colony of the beauveria bassiana QSE-F1 is flat, villus-shaped, thick in middle and thin in edge, the surface of the bacterial colony is initially milky white and gradually becomes faint yellow along with the increase of culture time, and the bacterial colony is milky white powder after spores are generated in the later period; the QSE-F1 hyphae are colorless and transparent and are provided with diaphragms, and most conidia are spherical and oval. Experiments prove that the fermentation filtrate of the beauveria bassiana QSE-F1 can remarkably inhibit spore germination and hypha growth of botrytis cinerea, has a remarkable prevention and treatment effect on the occurrence of the botrytis cinerea, can be used for preparing biological agents for preventing and treating the botrytis cinerea, and has a good market application prospect.

The invention belongs to the technical field of microorganisms, and discloses a pleurotus purpureus strain 162 and a cultivation method thereof. The preservation number of the strain 162 is CGMCC (China General Microbiological Culture Collection Center) No. 42041. The cultivation method comprises the following steps: 1) inoculating a pleurotus purpureus strain 162 on a mother strain culture medium to obtain a strain 162 mother strain; 2) inoculating the strain 162 mother strain to a stock culture medium to obtain a strain 162 stock; 3) inoculating the strain 162 stock seed to a cultivar culture medium to obtain a strain 162 cultivar; and 4) cultivating the cultivar of the strain 162 to obtain the sporocarp of the strain 162. The strain 162 is fast in hypha growth, short in after-ripening period, fast in fruiting, white in pileus, strong in adaptive capacity and short in harvesting period; the biological efficiency is high; the feed is high in nutritional value and has strong disease resistance to bacterial brown spot.

The invention provides a ganoderma strain SM07 and application thereof. The preservation number of the ganoderma strain (Ganoderma sp.) SM07 is CCTCC (China Center for Type Culture Collection) NO: M 20251816. The bacterial strain is developed in aerial hypha, rapid in hypha growth and high in hypha kinking property, straw can be used as a raw material to produce the biomass lining, and the biomass lining package is pure white and smooth in appearance, light and attractive in texture, has the loose and porous structural characteristic, is excellent in air permeability, can provide good buffering protection and can be used for preparing the biomass lining. And the quality stability in the tobacco leaf storage process is guaranteed. Besides, the environment-friendly characteristic is outstanding, the smoke biomass lining can be degraded by microorganisms in soil and converted into soil organic matter after being used, resource cyclic utilization of agricultural by-products is achieved, traditional plastic foam can be replaced, the problem of white pollution is avoided, and wide market prospects are shown in the field of green packaging.

The invention relates to a pseudomonas strain A18 and application thereof, the strain is preserved in the China Center for Type Culture Collection (CCTCC), the preservation number is CCTCC NO: M 2025521, and the strain is classified and named as Pseudomonas glycinae A18. By exogenous addition of A18, hypha growth of pure-culture lactarius deliciosus fungi can be increased, symbiosis of pine-lactarius deliciosus mycorrhiza is promoted, the number of mycorrhizal tips is increased, the plant height and biomass of mycorrhizal seedlings are improved, and meanwhile nitrogen, potassium and iron absorption of overground parts of the mycorrhizal seedlings and nitrogen absorption of root systems are increased; therefore, the method can be applied to promoting synthesis and / or growth of a pinus plant-lactarius deliciosus symbiotic system.

The invention provides a new tremella strain variety HT108, which is formed by space radiation induced variation breeding by taking'ancient tremella Tr21 'as an original strain. The Tremella fuciformis Tr21 has the characteristics of high mycelial growth speed, high polysaccharide content in spores and the like, the sporocarp is yellow, the flower shape is round and compact, the tremella slices are thick and are internally rolled, the yield is high, the active ingredient content is high, particularly the total polyphenol content and the total flavone content are respectively increased by more than 30% compared with those of the contrast Tremella fuciformis Tr21, and the Tremella fuciformis Tr21 has good production and application values.

The invention discloses a preparation and regeneration method and application of phellinus igniarius protoplast. The method comprises the following steps: inoculating a phellinus igniarius strain to an improved PDA culture medium for activation, inoculating vigorously-growing hypha blocks to an improved PDB culture medium for culture, washing hyphae with sterile water, and absorbing surface moisture to obtain wet phellinus igniarius hyphae; carrying out enzymolysis on the wet phellinus igniarius hyphae in a dark place by using lywallzyme and driselase to obtain phellinus igniarius hypha enzymatic hydrolysate; filtering the phellinus igniarius hypha enzymatic hydrolysate, centrifuging the filtrate, washing the precipitate with a mannitol solution to obtain purified phellinus igniarius protoplast, and dispersing the purified phellinus igniarius protoplast in the mannitol solution to obtain a phellinus igniarius protoplast suspension; and diluting the phellinus igniarius protoplast suspension with a mannitol solution, and coating the diluted phellinus igniarius protoplast suspension on an improved PDA regeneration culture medium plate for regeneration culture. The phellinus igniarius protoplast suspension is subjected to ultraviolet ray and lithium chloride compound mutagenesis, the protoplast after mutagenesis is subjected to regeneration culture, and the phellinus igniarius dominant mutant strain with the hypha growth speed, the mycelium biomass, the flavone yield and the mycelium ethanol extract antioxidant activity improved is obtained through screening.

The invention discloses a pleurotus nebrodensis strain, a fruiting body of the pleurotus nebrodensis strain and application of the pleurotus nebrodensis strain and the fruiting body. The preservation number of the pleurotus nebrodensis strain is GDMCC No: 64079. According to the novel pleurotus nebrodensis strain, pileus is brown and provided with stripes, the strain is obviously different from existing strains, hyphae of the strain grow fast, primordia can be formed without low-temperature stimulation and variable-temperature bud pressing after the hyphae grow to be full for 20-40 days, the temperature adaptability is high, and the cultivation technical difficulty is lowered. In addition, the whole production cycle of the pleurotus nebrodensis strain is short, cultivation mycelia are cultivated for 20-40 days, cultivation fruiting is carried out for 13-20 days, and one cultivation cycle is completed for 33-60 days. According to the pleurotus nebrodensis cultivation method, the fruiting rate reaches 100%, the biological conversion rate reaches 90-100%, the production cost is saved, the mass production is improved, and the economic efficiency of pleurotus nebrodensis cultivation and the production enthusiasm of farmer households are greatly improved.

This invention discloses a non-destructive sampling method for studying the interaction between AM fungi and mycelial bacteria. Step 1: Sterilized culture medium is filled into the root chamber and the mycelial growth chamber, and the outer end of the mycelial growth chamber is sealed; the inner end of the mycelial growth chamber is connected to the root chamber. Step 2: Corn seeds are planted in the culture medium in the root chamber, and AM fungal spores are added to the root chamber while simultaneously cultivating them using nutrient solution and water. Step 3: Collection is performed, consisting of collecting pure mycelia and collecting fresh soil affected by pure AM fungal mycelia. This invention uses non-destructive sampling under pot conditions to collect pure, uncontaminated AM fungal mycelia and mycelial soil affected by AM fungi for scientific research on mycelial interactions.

The invention relates to an application of a plant secondary metabolite in inhibiting pathogenicity of fusarium oxysporum. The application comprises the step of realizing an antibacterial effect through at least one mechanism of inhibiting hypha growth, spore germination, cell membrane permeability change, defensive enzyme activity reduction, cell wall degrading enzyme activity inhibition or toxin synthesis reduction of pathogenic bacteria. The antibacterial action mode of the 2, 4-di-tert-butylphenol is that the 2, 4-di-tert-butylphenol can destroy the completeness of cell membranes of fusarium oxysporum of cucumbers and disturb the functions of the cell membranes to cause leakage of cell contents and oxidative damage, so that normal physiological activities of cells are inhibited. Meanwhile, 2, 4-di-tert-butylphenol can inhibit defensive enzyme activity and cell wall degrading enzyme activity of fusarium oxysporum and has a remarkable inhibition effect on toxin synthesis, so that the purpose of inhibiting fusarium oxysporum hyphae from infecting host plants is achieved, and a basis is provided for subsequent deeper research on a fusarium oxysporum inhibition mechanism.

The invention discloses a method for researching interaction of AM fungi and interhypha bacteria through non-destructive sampling. The method comprises the following steps: step 1, filling a root chamber and a hypha growth chamber with a sterilized culture medium, and sealing the outer end of the hypha growth chamber; the inner end of the hypha growth chamber is communicated with the root chamber; 2, corn seeds are planted in the culture medium of the root chamber, AM fungal spores are added into the root chamber, and meanwhile a nutrient solution and water are used for cultivation; and step 3, collecting, namely collecting pure hyphae and collecting fresh soil influenced by the pure AM fungal hyphae. According to the method, non-destructive sampling is carried out under the potting condition, pure and pollution-free AM fungus hyphae are collected, and interhypha soil influenced by AM fungi is used for scientific research of interhypha interaction.

The invention relates to the field of mycelium culture, and discloses a trametes robiniophila mycelium culture method which is characterized in that a traditional culture medium is improved, and a flaky polylactic acid nano-material, chitosan nano-particles and porous silicon dioxide nano-particles are added into the traditional culture medium to form a three-dimensional porous network structure, so that physical support is provided for mycelia; hyphae can be better attached and grow, and growth and reproduction of the hyphae are effectively promoted. Compared with a traditional culture medium, the problems that the physical environment for mycelial growth is poor, and the utilization efficiency of nutrient substances is low are solved.

The invention discloses a poria cocos hypha growth and rejuvenation method and equipment. The poria cocos hypha growth and rejuvenation method comprises the following steps: S1, selecting a first poria cocos fungus bag; s2, performing hole pricking treatment on the first poria cocos fungus bag; s3, oxygen therapy treatment is conducted on the pricking positions of the first poria cocos fungus bags; and S4, sealing the pricked hole of the first poria cocos fungus bag after oxygen delivery is completed, so as to obtain a second poria cocos fungus bag. According to the poria cocos hypha growth and rejuvenation method, poria cocos hypha growth and rejuvenation are achieved by conveying oxygen to the hypha substrate, the oxygen content of the hypha substrate is increased, the method is simple and effective, meanwhile, poorly-growing parts of hyphae are punctured in a targeted mode, hypha rejuvenation is achieved under the condition that poria cocos fungus bags are not cut open, and the survival rate of the poria cocos hyphae is increased. The rejuvenation equipment is used for achieving hole pricking and oxygenation of poria cocos fungus bags in the poria cocos hypha growth and rejuvenation method.

The invention discloses a method for fermenting gastrodia elata by Armillaria Galaululifera and a fermentation product and application thereof, and the method comprises the following steps: preparing gastrodia elata powder; preparing a PDB culture medium; the preparation method comprises the following steps: firstly, inoculating a PDA plate culture medium with a Garubus armillaria strain for activation culture, inoculating the strain into a PDB culture medium after hyphae grow to bacterial colonies with the diameter of 1cm, and performing shaking culture on a shaking table to obtain a strain suspension; mixing gastrodia elata powder, a PDB solution and water to obtain a gastrodia elata mixed culture medium; and inoculating the strain suspension into the gastrodia elata mixed culture medium, and carrying out shake culture to obtain the gastrodia elata fermentation product. The gastrodia elata leavening obtained by the invention is obtained by fermenting Armillaria Galauracil, has the characteristic of increasing the content of gastrodin, and shows remarkable effects of resisting depression and improving sleep under the condition that the dosage is 200-800mg / kg.

The utility model provides a fungal hypha collecting device which comprises an outer frame, the inner portion of the outer frame is divided into a plurality of small chambers through inner baffles, each small chamber is internally provided with a hypha collecting pipe, each hypha collecting pipe is a bent pipe, each hypha collecting pipe is divided into a bent section and an inserting section, the bent section is the curve top of the bent pipe, and the inserting section is arranged in the bent section. The insertion sections are located at the two ends of the bent pipe and can be vertically and downwards inserted into soil, and the hypha collecting pipe is filled with filler for hypha growth. According to the fungal hypha collecting device, the purity of collected hyphae can be improved, and the workload of a later separation procedure is reduced.

The invention belongs to the technical field of pesticides, and particularly relates to a biopesticide for preventing and treating mango anthracnose. The invention relates to a biopesticide. Active ingredients of the biopesticide are formed by compounding cytosinpeptidamycin and eugenol or L-carvone. According to the biopesticide disclosed by the invention, the compound combination of cytosinpeptidamycin and eugenol or L-carvone is taken as an active ingredient, and a hypha growth rate method is adopted to find that the compound combination can generate a synergistic effect in a verified compounding proportion, so that the control effect on mango anthracnose can be improved, and meanwhile, the use dosage of the pesticide can be reduced.

The invention belongs to the field of marine natural product chemistry, and particularly relates to a marine fungus-derived alkaloid derivative and application thereof in prevention and treatment of pepper phytophthora blight. The marine fungus crude extract disclosed by the invention shows very strong antifungal activity on phytophthora capsici under the concentration of 300 mu g / mL. Seven monomeric compounds are separated and identified, NEA shows strong antifungal activity to phytophthora capsici and is stronger than positive control azoxystrobin, the NEA effectively inhibits hypha growth, sporangium formation and zoospore movement of phytophthora capsici hyphae, and meanwhile, the protective ability of pepper plants is enhanced; nEA causes obvious morphological change of phytophthora capsici protonema, so that cell membrane integrity damage, vacuole abnormal expansion, vacuole rupture, serious plasm-wall separation and disappearance of most organelles are caused. In addition, the content of MDA in the phytophthora capsici mycelium induced by the NEA is increased, the activity of antioxidant enzyme is reduced, and the level of soluble protein is reduced.

The invention relates to the technical field of microbial preparations and plant cultivation, and discloses a preparation method of an arbuscular mycorrhizal fungus root system activator, which comprises the following steps: weighing materials according to a ratio, carrying out pretreatment and disinfection on the materials, and carrying out sterilization and sterilization on the materials to obtain the arbuscular mycorrhizal fungus root system activator, which comprises arbuscular mycorrhizal fungus propagules, natural raw materials, auxiliary materials, nutritional supplements and culture medium components, so as to obtain the arbuscular mycorrhizal fungus root system activator. Auxiliary materials are added into pretreated culture medium components, a nutritional supplement and natural raw materials are fully mixed, the mixed activator material is prepared into particles, the activator particles are placed on a culture medium to be cultured, the growth condition of hyphae is observed, and when the hyphae are interwoven into a net shape, the preparation is successful. By optimizing natural raw materials, auxiliary materials, nutritional supplements and culture medium components, the activity, stability and preparation efficiency of the microbial inoculum can be improved while the technological process is simplified, so that an efficient microbial activator is provided for plant root growth.

This invention relates to the field of pharmaceutical technology, specifically to the application of dehydronuciolin and fluconazole in the preparation of antifungal drugs. The in vitro synergistic effect of the combination of dehydronuciolin and fluconazole was determined using a checkerboard assay, showing a fractional inhibitory concentration (FIC) ≤0.5, confirming a strong synergistic effect. The in vivo efficacy of this drug combination was verified using a large wax moth infection model. Phenotypic experiments explored the synergistic mechanism, showing that the combination of dehydronuciolin and fluconazole significantly inhibited the hyphal growth, biofilm formation, and adhesion to host cells of drug-resistant Candida albicans. Transcriptome sequencing analysis confirmed these findings, showing that treatment with the combination of dehydronuciolin and fluconazole downregulated hyphae-specific genes, GPI-anchored cell wall proteins, and the ergosterol biosynthesis pathway, collectively weakening the virulence, surface integrity, and host recognition ability of Candida albicans, thereby reversing its drug resistance.

The present application belongs to the field of pharmaceutical chemistry, and particularly relates to Hypogin derivative and application thereof. The present application firstly simplifies the structure of Hypogin endogenous peptide, finds an active fragment, and designs and synthesizes Hypogin derivatives of series I. The Hypogin derivatives with better activity in series I are combined with cinnamic acid to design and synthesize compounds of series II. Research finds that the compound II-1 can better inhibit the hypha growth of Sclerotium rolfsii, and it is found that I-12 affects the signal pathway of PI3K of Sclerotium rolfsii, and the potential target is GPCR, RTK and PI3K of Sclerotium rolfsii. The cytotoxicity experiment shows that II-1 has low hepatocyte toxicity of human LO2, and conforms to the development direction of green bactericides. The Hypogin derivative has bacteriostatic activity, can be used as a basis for development of small peptide bacteriostatic agent, and has good application prospect.

The present invention relates to novel applications of thiazolinone as a fungal and oomycete chitin synthase inhibitor and its sterilization application. In vitro enzyme activity inhibition tests and sterilization tests demonstrate that thiazolinone can significantly inhibit the activity of fungal and oomycete chitin synthases, inhibit fungal spore production and hyphal growth, and inhibit the production and infection toxicity of oomycete sporangia. The invention can be used as a sterilant for the prevention and treatment of fungal and oomycete diseases.

The present disclosure relates to methods and compositions for genetically engineering microorganisms for improved control of pathogens such as bacteria and / or fungi, which can be applied in various fields such as medicine and agriculture. The genetically engineered microorganisms may comprise deletions or knockout at one or more genomic loci that confer the ability to reduce mycelial growth of the fungi, reduce sporogenesis of the fungi, and / or other benefits.