Studies on <em>Xerophilic</em>, <em>Acidiphilic</em>, and <em>Alkaliphilic Fungi</em> in Wadi El-Natrun
The present study is an unprecedented extensive survey of mycobiota of Wadi El-Natrun depression, Western Desert of Egypt, which is a hypersaline extreme environment. The study was confined to the eight main lakes of the Wadi during six seasons in the years 2007/2009. In general, 159 species, in add...
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| Autores principales: | , , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2024
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/87283 |
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| Sumario: | The present study is an unprecedented extensive survey of mycobiota of Wadi El-Natrun depression, Western Desert of Egypt, which is a hypersaline extreme environment. The study was confined to the eight main lakes of the Wadi during six seasons in the years 2007/2009. In general, 159 species, in addition to four species varieties assigned to 50 genera, were recovered during the current investigation. The widest spectra of species were recorded in the genera Aspergillus (22 species +2 varieties), Penicillium (19), Fusarium (17), and Acremonium (8). The widest spectrum of species was recorded in El Zugm Lake (82 species) while the lowest was in Fasida (51). Also, the control medium contributed the widest spectrum of species (95 species) while 10% NaCl medium had the lowest (46 species), with the wider spectrum also being recorded in winter and spring seasons and the narrowest during summer. Total of 40 isolates of the most commonly encountered species from different sources, lakes, and isolation media were tested for their capabilities of producing cellulase, protease, lipase, phosphatase, xylanase, and pectinase enzymes. Most isolates had the capabilities of producing cellulase (96%), protease (86.8%), lipase (92.3%), and phosphatase (100%) but with different degrees; however, only 3 out of 20 isolates tested were xylanolytic (15%) and only one out of 38 was pectinolytic. |
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| ISBN: | 978-1-83769-041-1 |
| DOI: | 10.5772/intechopen.111818 |