Mathematical models which imitate plant gravitropic responses were used to compare plant and fungal gravitropism with kinetic data from the agarics Coprinus cinereus and Flammulina velutipes. Similarities were: bending depends on differential growth; growth of the organ is most intensive just behind the apex; gravitropisms exhibit a substantial time delay. Differences were: the agaric stem apex...

is growing evidence for the composite nature of the loci controlling T z E g types in yeasts as well as in the higher fungi (Coprinus lagopus: DAY 1963; Collybia uelutipes: TAKEMARU 1961 ; Pleurotus ostreatus: TERAKAWA 1960; and Schizophyllum commune: RAPER, BAXTER, and ELLINGBOE 1960). In the yeast Schizosaccharomyces pombe, LEUPOLD ( 1958) has demonstrated recombination (0.4 percent) between ...

The molecular basis of variability at the Coprinus cinereus A mating-type was investigated. The A mating-type controls sexual compatibility in this basidiomycete fungus and, like the S loci of many plants, displays quite high levels of variation in natural populations. The A mating-type is a complex locus made up of a number of genes arranged in gene pairs. We determined the role of recombinati...

D-Glutamate inhibited hyphal extension, the degree of inhibition depending on the identity of the glutamate dehydrogenase (GDH) enzyme present in the mycelium. Mycelia were most sensitive to inhibition on media which promoted formation of the NAD-linked GDH. The activity of this enzyme was inhibited by D-glutamate in experiments with cell-free extracts, the inhibitions being noncompetitive or m...

in this study, decolorization of the diazo dye, reactive black 5 (rb5) in a coprinus cinereus peroxidase-catalyzed reaction has been investigated. a bisubstate kinetic model for the reaction rate based on the ping-pong mechanism was assumed for the enzymatic decolorization. experimentswere conducted at different rb5 and hydrogen peroxideconcentrations in a batch mannerto estimate the intrinsic ...