The invention discloses a
fusarium venanii strain with high substrate conversion rate and low
RNA (Ribonucleic Acid) content and application of the
fusarium venanii strain, and belongs to the fields of
genetic engineering technology and
food biotechnology. Compared with a
wild strain, the
fusarium venanii Fcdc has the advantages that the conversion rate of a
gene Cdc42 on a
genome from a substrate to
thallus is increased to 67.06%, the conversion rate from the substrate to
protein is increased to 26.01%, the
sugar consumption for producing mycelia with the same
dry weight is reduced by 60%-70%, the
sugar consumption for producing mycelia
protein with the same
dry weight is reduced by 60%-70% compared with the
wild strain, and the
RNA content of the mycelia is reduced by more than 90% and is as low as 0.32% compared with the
wild strain; the method has the advantages that the method is simple and convenient to operate, a heat treatment and
nucleic acid removal step is not needed, the production efficiency and the safety quality of the fusarium venanii
hypha protein are obviously improved, the production cost is reduced, and the fusarium venanii can be used for further developing
genetic engineering modification work and cultivating fusarium venanii strains with
high protein content and low
RNA content.