Mark W. Platt

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The growth of Pleurotus ostreatus sp. ‘florida’ on cotton and wheat straw supplemented with cotton straw water extract was examined. It was found that degradation of cotton straw was superior to that of wheat straw and that addition of water extract of cotton straw increased the degradation of wheat straw. The growth enhancing effect of this water extract(More)
The value of plant waste materials can be increased by fermentation with white rot fungi (Zadrazil 1977). These lignocellulosic materials can be utilised for mushroom production. During the growth period of Pleurotus sp. 'florida' on cotton straw, a reduction of 50% in dry weight of the substrate was observed. After drying the straw was boiled to remove(More)
Rhizobium species produce an inducible acyl carrier protein (ACP), encoded by the nodF gene, that somehow functions in an exchange of cell signals between bacteria and specific plant hosts, leading to nodulation of plant roots and symbiotic nitrogen fixation, as well as a constitutive ACP needed for the synthesis of essential cell lipids. The periplasmic(More)
During growth of Pleurotus on cotton straw both the straw in general and the lignin in particular were degraded. After 4 days of fungal growth, activity of laccase, catechol oxidase, peroxidase, and cellulase were detected. This activity, however, declined rapidly after 8–10 days of growth. Lignin degradation began after 10 days and reached a maximum after(More)
In this work we have investigated the decolorization of the polymeric dye Poly-B411 by several fungi. Only fungi with known lignin degrading ability were able to decolorize the dye. Pleurotus ostreatus sp. ‘florida’ decolorized the dye both in solid and liquid media. Decolorizing ability developed in the absence of the dye but only when the fungus had been(More)
Incubation of the soluble fraction derived from Mycoplasma gallisepticum cells with [gamma-32P]ATP results in the phosphorylation of several endogenous proteins. One protein with an apparent molecular mass of 55 kDa was the acceptor of more than 95% of the radioactive phosphate. This protein was also found to be radiolabeled in intact cells grown in the(More)
The cell membrane of Mycoplasma mobile was isolated by either ultrasonic or French press treatment of intact cells. The membrane fraction contained all of the cellular lipids, but only one-third of cellular proteins and had a density of 1.14 g ml-1. The soluble fraction contained the NADH dehydrogenase activity of the cells, as well as a protein with an(More)
Experiments were performed to determine the interaction between the hemolysin of group B streptococcus (GBS) and sheep erythrocytes. Growing GBS were shown to possess a potent hemolysin at a very early stage of the growth cycle. After separation of the cells from the growth medium, all the hemolytic activity remained with the bacterial cells, and no(More)
Phosphorylation of a major 57-kilodalton protein substrate was observed in cell lysates of Spiroplasma melliferum BC3 incubated with [gamma-32P]ATP. Only serine phosphates have been isolated from the acid hydrolysate of the phosphorylated protein. The 57-kilodalton protein substrate was found, to a large extent, in the cytosolic fraction and, to a lesser(More)