文摘
Resistance towards SHDIs is an emerging problem in both A. alternata and A. solani populations. Eighty-three A. solani and 53 A. alternata isolates, were screened for the presence of mutations leading to SDHI resistance. 70% of the A. solani and 41% of the A. alternata isolates possessed one or more SDHI mutations. 40% of the A. solani and 58% of the A. alternata population possesses a dual fungicide resistance against QoIs and SDHIs. Based on mycelium growth and spore germination capacity, there was no fitness cost associated with these mutations.