貯穀微生物のくん蒸効果に関する研究 (第3報) : ふけ米菌 (Absidia Sp.) 胞子にたいする臭化メチルの殺菌効果について

概要

論文の詳細を見る
Fungicidal properties of methyl bromide was studied with spores of Absidia sp., the fungus of moldy rice grains. Spore mortality was assessed under microscope in most cases, but colony counting on Koji extract agar in petri dish combined with direct spore counting was also applied in case of high mortality. At air humidity of 75 percent, the fungicidal effect was not much differnt at 25℃ and 30℃. At this humidity, 100 per cent mortality coult not be attained within 72 hrs., at temperatures from 15°to 30°. Probit of mortarlity plottedagainst logarithm of fumigation time yielded straight lines. At a given air humidity, slopes of these straight lines are almost constant, irrespective of temperature and concentration of methyl bromide. The fungicidal effect markedly increased with air humidity. At 95 per cent air humidity and 25℃, at gas concentration of 25.5mg/l, 100 per cent mortality was attained in 12 hrs.
日本植物病理学会の論文
1963-09-25