チオールエステルに関する研究 (第4報)

Aspergillus nigerの菌糸及び胞子に対する阻害について

抄録

Examinations were made on the effect of phenyl thiolbenzoate (Fig. 1), thiophenol ester of fatty acids (Fig. 2 and Table I), and thiophenol ester of aromatic and heterocyclic carboxylic acids (Table II) on the mycelium and spores of Aspergillus niger. It was found that the intensity of the effect of phenyl thiolacetates against mycelia and spores (Fig. 3) by the introduction of methyl or bromine in the para-position of thiophenol ring was in the order of bromine >hydrogen >methyl, in parallel with their acyl migration reactivity (Fig. 4) under organic chemical experimental conditions. It was observed that the antispore effect of phenyl thiolacetate tended to become stronger by the addition of pyridine (cf. Fig. 5).