SMS and infection: The analysis of H. perniciosus secretory proteins and pathogenicity-related genes shows that there is a likelihood that the fungus does not require considerably large numbers of CAZymes and SMs during host infection, but H. perniciosus utilizes secretory proteins, key pathogenic GHs (GH18, GH75, GH 76 GH 16), CBM50 (LysM domain), CBM18 and CE4 (chitin deacetylase), peptidases, and SMs to infect its hosts [86,91].