El-Hissy F T, Moubasher A H, El-Nagdy M A
Z Allg Mikrobiol. 1982;22(8):521-7. doi: 10.1002/jobm.3630220803.
The seasonal fluctuations of aquatic fungi were studied over 24 water sample collected monthly between May 1979 and April 1981 from the River Nile near Assiut (about 375 km, south from Cairo, Egypt). The richest periods in aquatic fungal genera and species were September--December 1979, January--March, October--December 1980, and January--April 1981. These periods represent low or moderate temperature months. The poorest periods were May--August 1979, April, May, July, August and September 1980 which are almost summer months. Twenty-nine species and one variety of Olpidiopsis saprolegniae which belong to ten genera of aquatic fungi were collected during this investigation. Three genera were of high seasonal occurrence (19-24 months) namely: Achlya, Saprolegnia and Dictyuchus. Three other genera were of moderate seasonal occurrence (6-11 months) namely: Isoachlya, Leptolegnia and Pythium. The rest of genera were of low or rare seasonal occurrence.
1979年5月至1981年4月期间，每月从阿斯尤特附近的尼罗河（埃及开罗以南约375公里处）采集24份水样，研究水生真菌的季节性波动。水生真菌属和种类最丰富的时期是1979年9月至12月、1980年1月至3月、10月至12月以及1981年1月至4月。这些时期代表气温较低或适中的月份。最贫乏的时期是1979年5月至8月、1980年4月、5月、7月、8月和9月，这些几乎都是夏季月份。本次调查共采集到29种和1个变种的水霉目真菌，它们隶属于10个水生真菌属。有3个属季节性出现频率较高（19 - 24个月），即：绵霉属、水霉属和网囊霉属。另外3个属季节性出现频率适中（6 - 11个月），即：异绵霉属、细囊霉属和腐霉属。其余属的季节性出现频率较低或罕见。
