88. Genera Penicillium and Aspergillus.

Question 1

Genera Penicillum?

Answer 1

Morphology/Resistance

conidiophores are brush-like

Pathogenecity

P. notatum, P. chrysogenum: penicillin
P. rubrum, P. viridicatum: mycotoxin production in feed
rubratoxin: cattle hepatotoxicity
ochratoxin: pig, poultry: renal toxicity
patulin: cattle, sheep, pig: inhibition of ruminal flora, acidosis, vomiting in pigs

Question 2

Fungi aspergillus Morphology Culture Biochemistry Pathogenecity ?

Answer 2

Morphology/Resistance

conidia terminally on the
hyphae

Culture

rapidly growing pigmented colonies

Biochemistry/Antigen

member of the phylum Ascomycota
Pathogenicity

respiratory pathogens, acquired by inhalation of spores
A. fumigatus: lung mycosis (poultry), mycosis of eggs, abortion
A. flavus: aflatoxin: pig, poultry, cattle: hepatotoxicity, immunosuppression, mutagen, carcinogen, teratogen
A. ochraceus: ochratoxin: pig, poultry: kidney degeneration