ISOLATION AND DIAGNOSIS SOME OF FUNGI FROM THE EUPHRATES RIVER IN THE CITY OF NASIRIYAH IN SOUTHERN IRAQ AND MEASURING SOME OF THE ENVIRONMENTAL CHARACTERISTICS OF THE SAME RIVER

Abstract

This study carried out in “Nassirya city ” located in the southern of Iraq to isolate some fungi . Mycological samples were collected in January 2018 from water . Fungi isolated from sewage water of the city . It was isolated and diagnosed from the various regions in Naasyriha governorate, fungi found in the Euphrates River include the regions: The first station: - The city center near the olive bridge. The second station: - Sewage station near Al- Sedinaouia. The third station: - After the pumping station near the station Sedinaouia . These genus of fungi were identified by depend on based “phenotypic ,microscopicand the growth of fungi on media culture PDA and SDA .The present study using direct isolation method the following fungi have been isolated: Pythium, Aspergillus, Rhizoctonia, Alternaria, Penicillium Mucor, The current study showed that most of the fungi isolated by direct isolation due to the group of fungi deficient Deutromycetes and ovarian, this is due to the ability of these fungi to produce breeding units in large numbers and small size of those units And their ability to spread long distances up to hundreds of kilometers as well as the composition of structures that pass the environmental conditions not suitable for their growth , This has led to an increase in their numbers. Some environmental determinants such as temperature, pH, salinity and electrical conductivity have also been measured . The result revealed a clear balance between the temperature of water and air in the stations studied. the lowest rate of air temperature was (21˚) in the first station and the maximum value was (25˚) in the third stastion. While the water was above the value of (24˚) in the first station, and the maximum rate of water temperature was (27˚) in the third station. Furthermore, the PH was values tended to base. It is reached the highest value (8.3) in the third station, and the lowest value (7.36) in the second station . Also, there was change in the value of salinity and electrical conductivity for station in the study.