The cultures were approximately one-month old
when used, and a germination test was conducted before inoculating
the plants. For the test, a low concentration of conidia
was suspended in 0.1 % Triton X-100 (Sigma Aldrich) and
from this stock a 15 ml aliquot was plated on 2.5 % Noble agar
(Becton Dickinson, Sparks, MD)