Al-Fredan M A, Fathi A A
College of Science, King Faisal University, Al-Hassa, Saudi Arabia.
Pak J Biol Sci. 2007 Sep 15;10(18):3210-4. doi: 10.3923/pjbs.2007.3210.3214.
Five soil samples were taken from different cultivated sites from the North Villages of Al-Hasa. Three algal groups were recorded throughout this study, Bacillariophyta, Cyanophyta and Chlorophyta. Fifty-two genera of algae were identified in all the soils sampled during this investigation. Out of these, 11 genera belonged to the Chlorophyta; 16 genera belong to Bacillariophyta and 25 genera to Cyanophyta. Penniate Bacillariophyta (Nitzschia, Gyrosigma), oscillatorid Cyanophyta (Osillatoria, Phormidium, Nostoc and Anabaena) and coccoid Chlorophyta (Ankistrodesmus falacatus, Chlorella ellipsoidea, Chlorella vulgaris, Gleocystis bcillus, Scenedesmus acuminatus, Scenedesmus arvensis and Scenedesmus bijuga) were the predominant in all investigated sites.
从哈萨北部村庄的不同耕地采集了五个土壤样本。在本研究中记录了三个藻类群，即硅藻门、蓝藻门和绿藻门。在本次调查采集的所有土壤中鉴定出52个藻类属。其中，11个属属于绿藻门；16个属属于硅藻门，25个属属于蓝藻门。羽纹硅藻（菱形藻属、双菱藻属）、颤藻目蓝藻（颤藻属、席藻属、念珠藻属和鱼腥藻属）和球状绿藻（镰形纤维藻、椭圆小球藻、普通小球藻、球囊藻、尖细栅藻、农田栅藻和双对栅藻）在所有调查地点均占主导地位。
