Effect of Trehalose in Protecting Straw Mushroom (Volvariella?volvacea) at Low Temperature

Abstract:

In order to evaluate the effect of trehalose in protecting straw mushroom (Volvariella?volvacea) strain at low temperature, the viability, growth rate, chlamydospore, metabolites, and genetic fingerprinting of Volvariella?volvacea was tested. Results showed that straw mushroom strain remained viable at 4~6℃ at least for 8 months under trahalose preservation. HPLC analysis of metabolites and molecular fingerprinting indicated that trehalose didn’t change the genetics character of Volvariella?volvacea . The recovered straw mushroom strain stored at 4~6℃ for 8 months with the trehalose preservation kept viable and produce chalmydospores when stored in water for one month.