重金属,シアンの存在におけるGeotrichum candidumの発育と菌体構成分について

概要

論文の詳細を見る
Changes of growth and cell components of Geotrichum candidum belonging to sewage fungi were examined in synthetic medium containing heavy metals (Hg++, Cu++ and Zn++) and cyan.The growth of G. candidum in medium was greatly inhibited in response to increasing amount of the tested poisons. The fungous grown in CN-medium showed morphologically mycelium (filamentous) phase cells in which possess only a few septa, but in Cu++ or Zn++ medium abnormal mycelium and yeast-like phase were observed microscopically.An increase of total sugar, 3%-NaOH soluble polysaccharide and total nucleic acids was generally found in the Cu++ and Zn++ media in proportion to metal concentration. Glucosamine content was reduced in Cu++-containing medium, and DNA level was increased. However, appreciable quantitative change in these components was not observed in cells grown on CN- and Hg++ media.By addition of CN- or Cu++ in the medium G. candidum was increased RQ value in their cell respiration.
日本衛生学会の論文