Fungal diversity and composition in River Nile water polluted with chlorpyrifos insecticide | ||||
| Journal of Applied Molecular Biology | ||||
| Volume 2, Issue 1 - Serial Number 2974, January 2024, Page 31-51 PDF (963.95 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jamb.2023.217641.1002 | ||||
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| Authors | ||||
Naira Ali Mohamed  1; Ameer ELfarash2; Mohamed A. Abdel-Sater3; Elhagag Ahmed Hassan4
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| 1Department of Molecular Biology, Molecular Biology Researches & Studies Institute, Assiut University, Assiut, Egypt | ||||
| 2Dept. of Genetics, Fac. of Agri., Assiut Uni., Assiut, Egypt. Dept. of Applied Biotechnology, MBRI, Assiut University, Assiut, Egypt. School of Veterinary Medicine, Badr University in Assiut, Egypt. | ||||
| 3Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Egypt | ||||
| 4Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Egypt. School of Biotechnology, Badr University in Assiut, Egypt | ||||
| Abstract | ||||
| In the current study, the occurrence of different microorganisms in a microcosm experiment of polluted River Nile water with different concentrations of chlorpyrifos insecticide was estimated. The obtained results showed the presence of twenty-three fungal species related to nine fungal genera. Aspergillus, Penicillium, Fusarium and Trichoderma were the most prevalent fungal genera. The highest occurrence was recorded for Trichoderma sp. at 0.05 mL/L chlorpyrifos and the lowest occurrence was recorded for Botrydiplodia and Curvularia at control microcosm experiment and Stachybotrys at 0.2 mL/L chlorpyrifos. The highest fungal taxa (S) and individuals were estimated in the control experiment and the lowest fungal taxa and individuals were assessed at 0.1 mL/L chlorpyrifos. Whereas, the highest fungal Dominance (D) was monitored at 0.1 mL/L chlorpyrifos and the lowest fungal dominance (D) index was recorded at 0.05 mL/L chlorpyrifos insecticide. So, the highest fungal biodiversity indexes of Simpson (1-D) and Shannon (H) were estimated at 0.05 mL/L concentration of chlorpyrifos insecticide and the lowest fungal Simpson and Shannon indexes were recorded at 0.1 mL/L concentration. From the correlation results between the physicochemical characteristics and fungal occurrence, it was found that Aspergillus fumigatus was impacted by both the temperature and total dissolved sulphates (TDS), whereas Penicillium duclauxii was affected by pH, conductivity, and total salts (Ts), and Aspergillus niger was influenced by both total dissolved carbon (TDC) and total dissolved nitrogen (TDN). The cluster analysis of fungal composition estimated that fungal groups were detected with different concentrations of insecticide chlorpyrifos. | ||||
| Keywords | ||||
| Microcosm experiment; insecticide; aquatic ecosystem; chlorpyrifos | ||||
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