“…Besides the obvious microorganisms inactivation, PL have been applied to mutation breeding of high-producing strains, as Phellinus igniarius (Agaricomycetes), the mycelium biomass and the flavonoid production of the screened mutant strain QB72 were increased 20.87% and 53.51%, respectively. The total amount of the accumulated extracellular laccase of the QB72 in the first 6 and 8 days increased 23.38% and 22.37% respectively( Dong et al, 2022 ).…”