Kuthubutheen A J, Pugh G J
Antonie Van Leeuwenhoek. 1979;45(2):303-12. doi: 10.1007/BF00418593.
Aspergillus fumigatus was the most frequently isolated thermophilous fungus from green leaf surfaces. The application of fungicides significantly reduced the frequency of its occurrence there. A. fumigatus was relatively tolerant to fungicides. On Captan-, Thiram-, and Verdasan-treated leaves, A. fumigatus constituted 66%--80% of the total number of isolates obtained at 45 degrees C from each treatment while Dicloran did not depress the percentages. At 45 degrees C, A. fumigatus was found to be strongly cellulolytic with a slow rate of radial extension on YpSs agar and rapid rate of mycelial growth in Czapek Dox liquid medium. Increasing concentrations of all four fungicides reduced or prevented growth, sporulation, starch depletion and cellulose clearing of A. fumigatus. The fungus could tolerate higher concentrations of HgCl2 than of Verdasan. 2.5 microgram/ml of the four fungicides altered the rates of mycelial growth but not the maximum amount of mycelial dry weight attained.
烟曲霉是从绿叶表面分离出的最常见嗜热真菌。杀菌剂的应用显著降低了其在那里的出现频率。烟曲霉对杀菌剂相对耐受。在使用克菌丹、福美双和灭菌丹处理的叶片上，在45摄氏度下从每种处理中获得的分离物总数中，烟曲霉占66% - 80%，而氯硝胺并未降低该百分比。在45摄氏度下，发现烟曲霉具有很强的纤维素分解能力，在YpSs琼脂上径向扩展速度缓慢，在察氏液体培养基中菌丝生长速度快。所有四种杀菌剂浓度的增加都会降低或阻止烟曲霉的生长、孢子形成、淀粉消耗和纤维素分解。该真菌对氯化汞的耐受性高于灭菌丹。2.5微克/毫升的四种杀菌剂改变了菌丝生长速率，但未改变所达到的菌丝干重最大量。
