Summary
The kinetics, nutritional requirements and inhibitor properties of basidiospore germination in the wood-rotting mushroom Schizophyllum commune were investigated. Measurements of changes in absorbancy and dry weight showed a lag period of approximately 15–20 hrs, followed by an abrupt increase in the rate of both processes. Individual basidiospore elongation also showed a lag phase and population changes were heterogenous in this regard.
Carbohydrates active for basidiospore germination were grouped into four categories. Those sugars active between 15 and 20 hrs included glycogen, turanose, cellobiose, maltose, sucrose, glucose, fructose, mannose, galactose and xylose. Several sugar alcohols were only active between 30 and 60 hrs incubation and these included mannitol, sorbitol, ribitol, xylitol, arabitol, erythritol and glycerol. A third category of carbohydrates active for germination required prolonged incubation between 30 hrs and 7 days and included lactose, sorbose, raffinose, melezitose, trehalose, ribose and melibiose. Compounds without activity after 7 days included galactitol, inositol, acetate, succinate, gluconate, citrate, fumarate, rhamnose, fucose and inulin.
Nitrogen sources active in basidiospore germination included complex organic nitrogenous substrates, asparagine, glutamine, arginine, urea and various ammonium salts.
Germination was inhibited by cycloheximide, l-ethionine, p-fluoro-dl-phenylalanine, sodium azide, 2,4-dinitrophenol, phenylmercuric acetate and 2-deoxy-d-glucose. Alkali as a trapping agent arrested germination in glucose-(NH4)2SO4 medium but was without ill-effect in glucose peptone broth.
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Niederpruem, D.J., Dennen, D.W. Kinetics, nutrition and inhibitor properties of basidiospore germination in schizophyllum commune. Archiv. Mikrobiol. 54, 91–105 (1966). https://doi.org/10.1007/BF00408707
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DOI: https://doi.org/10.1007/BF00408707