Appressorium-like structures in insect-parasitizing deuteromycetes

摘要: Abstract Paecilomyces farinosus in slide cultures forms clavate branches of limited growth against the glass, but never, either or plate cultures, on agar medium itself. The possibilities that these represent abortive conidiophores, storage organs, and appressoria are considered, evidence first two is presented. possibility they supported by circumstances their formation role penetration artificial membranes paraffin wax. They form excised pieces integument insect Tenebrio molitor , fungus able to penetrate such pieces, it has not yet been possible establish participation vitro vivo. Similar appressorium-like structures formed Beauveria bassiana Metarrhizium anisopliae also. It argued because there certain similarities structure composition cuticle cuticularized plant epidermises, worth seriously considering host-boundary insect-parasitizing fungi resembles many appressorium-forming pathogens involves a process mechanical then one enzymic digestion, possibly accompanied pressure.