SSK1 is required for multi-drug resistance in A. alternata.

(A) Images of the wild-type (WT) and the Δssk1 deletion mutants (T5 and T11) grown potato dextrose agar (PDA) amended with 2-chloro-5-hydroxypyridine (CHP) or 2,3,5-triiodobenzoic acid (TIBA), each at 5 mM. (B) Quantitative analysis of the wild-type, Δssk1, Δhog1, and Δhsk1 strains in the presence of CHP or TIBA.