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Screening of halotolerant microfungi isolated from hypersaline soils of Algerian Sahara for production of hydrolytic enzymes

Authors

Wassila Dendouga
wassila.dendouga@univ-biskra.dz
Laboratory of Biodiversity of Ecosystem and Dynamic Production of Agriculture System in Arid Regions (DEDSPAZA), University of Biskra, Algeria.
Mohamed Belhamra
Scientific and Technical Research Center for Arid Areas (CRSTRA), Biskra, Algeria.

The Algerian Sahara contains numerous hypersaline ecosystems including salt lakes in which the fungal diversity has not been characterized. The abundance and diversity of soil microofungi in three salt lakes in south-eastern Algeria was investigated together with their profiles of hydrolytic enzyme. Fungal population size and relative abundance were determined in about 75 soil samples by plate count. From 69 fungal isolates, 46.38% were Aspergillus, 20.29% were Penicillium, and 11.59% belonged to Cladosporium genus. The 69 isolates have been studied at different constant temperatures and salinities. All fungal isolates are halotolerant or halophiles with the ability to grow at 50°C. The screening for extracellular halophilic enzymes at 40°C showed that 69.57% of the isolates were able to produce at least two types of the screened enzymes. Protease was the most abundant enzyme detected in 60.87% of the total isolates. The results obtained of all the growth tests indicate the adaptability of fungal isolates tested to the extreme conditions and their possible utilisation as producers of halophilic-active hydrolytic enzymes.

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How to Cite

Dendouga, W., & Belhamra, M. . (2021). Screening of halotolerant microfungi isolated from hypersaline soils of Algerian Sahara for production of hydrolytic enzymes. Journal of Biological Research - Bollettino Della Società Italiana Di Biologia Sperimentale, 95(1). https://doi.org/10.4081/jbr.2022.10167

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