2. Materials and methods
2.1. Methyl jasmonate and chitosan Methyl jasmonate was obtained from Sigma Aldrich and stored in bottles at 4 C. Chitosan (deacetylated S95%) was purchased from Sinopharm Chemical Reagent Co. Ltd.
2.2. Microorganisms
A. alternata was obtained from the Institute of Microbiology, Chinese Academy of Sciences. A. alternata was grown on potato dextrose agar medium in darkness at 28 C for 7 days.
2.3. Effect of chitosan and methyl jasmonate against A. alternata in vitro