食管癌高发区林县井头村玉米样品的真菌区系分析

经1994－1996连续3年调查 食管癌高发区林县井头村口粮玉米样品的真菌区系发现，镰刀菌属、青霉属、交链孢霉属、芽枝霉属、曲霉属及毛霉属是当地常见的玉米污染真菌类群。其中镰刀菌属真菌的污染最为严重，并以串珠镰刀菌（Fusarium moniliforme)和F.proliferatum为主。3年间，口粮玉米中镰刀菌属的污染程度虽有逐年下降的趋势，但其污染水平在常见的真菌中为最高（＞50％），且贮藏过程进一步加重了镰刀菌对玉米的污染。此外，通过病区和对照区北京的比较还发现，两地间玉米样品的真菌区系分析差异不显著。

Mycoflora Analysis in Staple Corn from Linxian Jingtoucun with High Incidence of Esophageal Cancer

From 1994 to 1996, investigation was carried out on mycoflora in staple corn from Linxian County Jingtoucun with high incidence of esophageal cancer. Results showed that Fusarium, Penicillium, Alternaria, Cladosporium, Aspergillus and Mucor were the common fungi. It was Fusarium that heavily contaminated in corn and F. moniliforme as well as F. proliferatum was the predominant species. In this three years the contaminated rate of Fusarium decreased year by year. However, its contaminated level was the highest one among the common fungi groups, and the store made contamination of the Fusarium more heavier in staple corn. It was also found that the difference between Jingtoucun and Beijing was not statistically significant.