Showing papers on "Penicillium griseofulvum published in 1970"
TL;DR: Conidia of Penicillium griseofulvum Dierckx were found to have an absolute requirement for glucose to initiate germination, and spores did not swell or germinate in the absence of glucose, although they were shown to be permeable to water.
Abstract: Conidia of Penicillium griseofulvum Dierckx were found to have an absolute requirement for glucose to initiate germination. Spores did not swell or germinate in the absence of glucose, although they were shown to be permeable to water. Maximum germination required the presence of nitrate and phosphate in addition to glucose. Rate of germination was dependent on glucose concentration in the early stages but later stages of the germination process were independent of the glucose concentration over the range tested. Of other sugars tested, galactose and melibiose induced germination but were scarcely used for mycelial growth, whilst fructose and lactose were completely unable to induce germination but supported mycelial growth almost as vigorously as glucose. During germination in glucose medium spores rapidly increased their uptake of oxygen and lost their resistance to drying. In the absence of oxygen, or presence of cyanide, only partial swelling occurred and no germ tubes were formed. Germination was inhibited by high spore density, and by removal of carbon dioxide from the medium.
22 citations