Abstract: The present disclosure relates to a construction method of a Mucor circinelloides cell factory for producing dihomo-?-linolenic acid and a fermentation technology, belonging to the field of genetic engineering. In the present disclosure, ?-linolenic acid elongase gene glelo is obtained from Mortierella alpine by cloning, the gene is ligated to an integrative plasmid pMAT1552, and transformed into a Mucor circinelloides defective strain Mu402, and the gene glelo is integrated into Mucor circinelloides genome through homologous recombination, to obtain the recombinant strain Mc-glelo, and finally, the expression of the gene glelo in Mucor circinelloides is realized. The lipid content in the recombinant strain Mc-glelo is not obviously different from that in the control strain Mc1552, however, the lipid composition changes greatly, and dihomo-?-linolenic acid appears in the lipids of the recombinant strain Mc-glelo, and the content thereof reaches 5.7% of the total fatty acids.

Abstract: The present application discloses a dicarboxylic acid transporter and its encoding gene dit gene for increasing oil yield of Mucor circinelloides, the dit gene is cloned from the high-yield M. circinelloides WJ11, and the dit gene is transformed into M. circinelloides deficient strain Mu402, the dit gene is integrated into the genome of M. circinelloides by homologous recombination to obtain recombinant strain Mc-Dit. The total fatty acid content of the Mc-Dit strain increased by 33.76% and the intracellular lipid content may reach up to 17.67% of the dry biomass.

Abstract: A C4-dicarboxylic acid transporter and its encoding gene C4mt gene can increase oil yield of Mucor circinelloides, the C4mt gene may be cloned from the high-yield M. circinelloides WJ11, and the C4mt gene is transformed into M. circinelloides deficient strain Mu402, the C4mt gene can be integrated into the genome of M. circinelloides by homologous recombination to obtain recombinant strain Mu-C4mt. The total fatty acid content of the Mu-C4mt strain can be increased by 25.30% and the intracellular lipid content may reach up to 16.34% of the dry biomass.

Abstract: Provided is construction of Mucor circinelloides cell factory for producing stearidonic acid (SDA) and fermentation technology. ?15 Desaturase gene is obtained by cloning from Mortierella alpina, the gene is ligated to an integrative plasmid pMAT1552, and transformed into a Mucor circinelloides defective strain Mu402, and ?15 Desaturase gene is integrated on Mucor circinelloides genome through homologous recombination, to obtain the recombinant strain Mc-?15, finally, the expression of the ?15 Desaturase gene in Mucor circinelloides is realized. The recombinant new strain is accession number CGMCC No. 15888, and the classification name is Mucor circinelloides-D15D.

Abstract: The present application discloses a dicarboxylic acid transporter and its encoding gene dit gene for increasing oil yield of Mucor circinelloides, the dit gene is cloned from the high-yield M. circinelloides WJ11, and the dit gene is transformed into M. circinelloides deficient strain Mu402, the dit gene is integrated into the genome of M. circinelloides by homologous recombination to obtain recombinant strain Mc-Dit. The total fatty acid content of the Mc-Dit strain increased by 33.76% and the intracellular lipid content may reach up to 17.67% of the dry biomass.

Abstract: Provided is construction of Mucor circinelloides cell factory for producing stearidonic acid SDA and fermentation technology thereof. ?15 Des gene is obtained by cloning from Mortierella alpina, the gene is ligated to an integrative plasmid pMAT1552, and transformed into a Mucor circinelloides defective strain Mu402, and ?15 Des is integrated on Mucor circinelloides genome through homologous recombination, to obtain the recombinant strain Mc-?15, finally, the expression of the ?15 Des gene in Mucor circinelloides is realized. The recombinant new strain was preserved in China General Microbiological Culture Collection Center on Jun. 20, 2018, and the address is NO. 1 West Beichen Road, Chaoyang District, Beijing. The center gave the biological material the preservation number CGMCC No. 15888, and the suggested classification name is Mucor circinelloides-D15D.

Abstract: The present disclosure relates to a construction method of a Mucor circinelloides cell factory for producing dihomo-?-linolenic acid and a fermentation technology, belonging to the field of genetic engineering. In the present disclosure, ?-linolenic acid elongase gene glelo is obtained from Mortierella alpine by cloning, the gene is ligated to an integrative plasmid pMAT1552, and transformed into a Mucor circinelloides defective strain Mu402, and the gene glelo is integrated into Mucor circinelloides genome through homologous recombination, to obtain the recombinant strain Mc-glelo, and finally, the expression of the gene glelo in Mucor circinelloides is realized. The lipid content in the recombinant strain Mc-glelo is not obviously different from that in the control strain Mc1552, however, the lipid composition changes greatly, and dihomo-?-linolenic acid appears in the lipids of the recombinant strain Mc-glelo, and the content thereof reaches 5.7% of the total fatty acids.