If Penicillium typically secretes penicillin without disturbing the lichen relationship in which it is engaged, then what must have been true about its partner?

Question

Quizplus · Accepted Answer

Penicillin targets the synthesis of peptidoglycan, which is found in the cell walls of bacteria. If Penicillium's partner in the lichen relationship was not disturbed by the secretion of penicillin, it implies that the partner lacked peptidoglycan in its cell wall, which is characteristic of eukaryotic cells, not bacteria.

If Penicillium Typically Secretes Penicillin Without Disturbing the Lichen Relationship