Isolation and Characterization of Some Haloalkaliphilic Fungi from Egypt | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 67, Issue 7, July 2024, Page 251-262 PDF (1.22 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2023.245259.8795 | ||||
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| Authors | ||||
Noura I. Farouk; Asmaa Elhosainy; shadia Sabry; Magda A. El-Meleigy  
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| Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo Egypt. | ||||
| Abstract | ||||
| Aspergillus salinarum, Cladosporium sphaerospermum, and Penicillium camemberti were isolated as haloalkaliphiles from Egyptian soils. The three fungal isolates tolerate pH (5 – 11), and they grew on NaCl to 25% (w/v). They were properly recognized morphologically and genetically. Aspergillus salinarum is obligately halophilic fungus required at least 5% (w/v) NaCl and tolerated to 25% (w/v) NaCl at pH 10.0. They prefer KCl on NaCl, the obligate one tolerates 30%(w/v) KCl. Sucrose was preferred on sugar alcohol used followed by glycerol. Increasing glycerol concentration increased the tolerance of these fungal isolates to pH and salt. A screen for the ability to produce extracellular enzymes showed that they produce amylase, protease, cellulase and lipase on different conditions of growth. These fungal isolates have many biotechnological applications. | ||||
| Keywords | ||||
| Filamentous fungi; Haloalkaliphilic microorganisms; Extracellular enzymes- Polyextremophiles | ||||
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