TABLE 2.

Cavity formation as a function of inoculum size

Dilution factorEstimated inoculum size (no. of cells)Symptoms observed after incubation (h) fora:
163248648096112120
10024 × 106*****+xxxxx
10224 × 104*****+xxxx
10424 × 102HHHA
10624A
108A
  • a *, cavity formation; **, massive tissue degradation; **+, complete tissue degradation of mushrooms; —, no reaction observed; H, hypersensitive reaction in 30% of the mushroom slices; A, assay terminated after mushroom slice started degenerating; x, tissue disappearance due to excess degradation by the pathogen.