The disclosure discloses an Aspergillus niger engineered strain for reducing byproduct succinic acid in a fermentation process of L-malic acid. The Aspergillus niger engineered strain is an Aspergillus niger engineered strain in which fumaric acid reductase frdA and fumaric acid reductase flavoprotein subunit frdB are simultaneously knocked out. The disclosure provides an frdA and frdB gene double-knockout Aspergillus niger strain, and a method for greatly reducing byproduct succinic acid in a fermentation process of L-malic acid. By the disclosure, the byproduct succinic acid accumulated in a production process of malic acid through fermentation of Aspergillus niger is significantly reduced, a cost in a downstream separation and purification process of malic acid is decreased, and good strains are provided for producing malic acid via industrial fermentation.

The disclosure discloses an Aspergillus niger engineered strain for reducing byproduct fumaric acid in a fermentation process of L-malic acid. The Aspergillus niger engineered strain is an Aspergillus niger engineered strain in which a fumarate hydratase gene fum is knocked out. The disclosure overcomes the defects in the prior art, in the current process of producing malic acid through fermentation of Aspergillus niger, byproduct fumaric acid can be accumulated with the generation of malic acid so as to cause the improved cost of the subsequent malic acid purification process. The disclosure provides an Aspergillus niger engineered strain in which a fum gene is knocked out and a method for greatly reducing byproduct fumaric acid in the fermentation production of Aspergillus niger.

The present disclosure provides novel fungal strains capable of solubilizing phosphate, as well as compositions and methods of using those strains to increase the amount/concentration of soluble phosphate in a medium that comprises insoluble phosphate.

A novel method of growing fungi is disclosed which uses an engineered artificial media and produces high density filamentous fungi biomats that can be harvested with a minimum of processing and from which fungal products such as antibiotics, proteins, and lipids can be isolated, the method resulting in lowered fungus cultivation costs for energy usage, oxygenation, water usage and waste stream production.

A spreading device, a powder-like mixture composition and a method tor spreading the composition for control or prevent forest pathogens on tree stumps are disclosed.

A method for preparing a hyper-cellulolytic catabolite derepressed mutants of ascomycetes fungus, especially variants of Penicillium funiculosum. Selection media used to isolate such variants include amorphous cellulose and a high concentration of glucose. Cellulase activities of mutant ID-10, in particular such as FPase and β-glucosidase were 1.5 times higher than Penicillium funiculosum MRJ-16 (parent). Furthermore, fungal mutant morphology was changed and no pH adjustment was required throughout the enzyme production process.

The present invention is related to an active substance of Hericium erinaceus having a pain-relieving effect, and a pharmaceutical composition including the active substance. The active substance is prepared using the following steps: (a) inoculating a mycelium of H. erinaceus on an agar plate and incubating at 15-32° C. for 8-16 days; (b) inoculating the incubated H. erinaceus mycelia from step (a) into a medium in a flask and incubating at 20-30° C. and pH 4.5-6.5 for 3-5 days; (c) inoculating the incubated H. erinaceus mycelia from step (b) into a medium in a fermentation tank and incubating at 24-32° C. and pH 4.5-5.5 for 8-16 days to obtain a fermented medium of the H. erinaceus mycelia; and (d) desiccating the fermented medium of the H. erinaceus mycelia from step (c) to obtain the powder of the H. erinaceus mycelia, which is further purified and isolated to obtain a novel compound of H. erinaceus.

The present invention belongs to the field of microbial technology, and specifically relates to a strain of Hericium erinaceus HT-3, with a deposit number of CCTCC No: M 2018567. The present invention also relates to a screening method for Hericium erinaceus HT-3. The screening method comprises the steps of purifying the strain of Hericium erinaceus from a tissue block, fermenting and culturing the strain, soak extracting ergothioneine from the mycelium cells in the fermentation broth, detecting the ergothioine content in the fermentation broth. The Hericium erinaceus strain screened according to the present invention has high ergothioneine yield, and the screening method is simple in process, easy to be operated, and low in production cost.

This invention provides an isolate of Chaetomium globosum, which is numbered as 12XP1-2-3, preserved by China General Microbiological Culture Collection Center with CGMCC No. 17183 on Jan. 23, 2019. This invention also provides an application of Chaetomium globosum in wheat growth promotion and yield increase. The results of field trials showed that by coating wheat seeds with Chaetomium globosum 12XP1-2-3, the chlorophyll content of leaves can be increased by 1.9%-14.7% at booting stage, and the wheat yield can be increased by 2.3%-10.9%.

The present invention provides isolated acidophilic Fusarium oxysporum strains, such as MK7, and their progeny, compositions comprising such strains and their progeny, methods of producing such strains and their progeny, and methods of using such strains and their progeny.