Studies on mycoflora of salt marshes in Egypt. i. sugar fungi

Abdel-Fattah, H. M.; Moubasher, A. H.; Abdel‐Hafez, S. I. I.

doi:10.1007/bf00440754

Cited by 38 publications

(9 citation statements)

References 17 publications

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“…Although previous studies have suggested that arid saline soils possess no characteristic microfungal diversity, these environments have been commonly associated to osmophilic or halophilic species ( Ranzoni , 1968 ; Moubasher & Mazen , 1972 ; Moustafa , 1975 ; Abdel-Fattah, Moubasher & Abdel-Hafez , 1977 ; Moubasher et al , 1991 ; Moubasher , 1993 ; Steiman et al , 1997 ). Accordingly, we recorded OTUs with saline affinities (i.e., A. persicinum and Emericellopsis pallida ).…”

Section: Discussionmentioning

confidence: 97%

Microfungal oasis in an oligotrophic desert: diversity patterns and community structure in three freshwater systems of Cuatro Ciénegas, Mexico

Vélez

Gasca-Pineda

Rosique-Gil

et al. 2016

PeerJ

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The Cuatro Ciénegas Basin (CCB) comprises several oligotrophic aquatic ecosystems limited by phosphorus. These aquatic systems are dominated by a high prokaryotic diversity, shaped by the stress of low nutrient supplies and interspecific competition. Although fungi constitute a diverse and important component of microbial diversity, the microfungal diversity in the CCB remains to be unveiled. With the aim to explore microfungal diversity and ecological patterns in this area, we present the first investigation analyzing cultivable taxa from sediment and water, as well as lignocellulolytic taxa obtained from incubated submerged plant debris, and wood panels in three contrasting freshwater systems in the CCB: Churince, Becerra and Pozas Rojas. We chose a culture-based approach to analyze sediment and water samples in order to obtain fungal cultures, providing opportunities for a posteriori studies, and the possibility of ex situ preservation of the diversity. We evaluated sequence data from the nuclear ribosomal internal transcribed spacer including the 5.8 rDNA region for 126 isolates, revealing 37 OTUs. These OTUs were phylogenetically affiliated to several genera in the fungal phyla: Zygomycota, Basidiomycota, and Ascomycota. We recorded two OTUs with saline affinity, agreeing with previous findings on the prokaryotic communities with ancestral marine resemblances. All the studied systems showed moderate diversity levels, however discrepancies among the diversity indexes were observed, due to the occurrence of abundant taxa in the samples. Our results indicated that lignocellulolytic microfungal communities are dominated by transient fungal taxa, as resident species were not recorded perhaps as a result of the long-term strong competition with the highly adapted prokaryotic community. Moreover, the obtained microfungal taxa occurred mostly on the resident plant debris, rather than submerged wood panels, perhaps as a result of the high adaptation to specific environmental conditions. In conclusion, the CCB possess a moderate taxonomical diversity compared to other arid environments, probably as a result of high selective pressures. Nonetheless, due to high spatial and temporal heterogeneity, the functional fungal diversity was considerable as predicted by the intermediate disturbance hypothesis. Decisively, the assessment of microfungal diversity freshwater systems is relevant, since this ecological group of microorganisms represents an important indicator of trophic complexity and biotic interactions among microbial communities, having important implications for understanding eukaryotic survival at the oligotrophic limit for life.

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Section: Discussionmentioning

confidence: 97%

Microfungal oasis in an oligotrophic desert: diversity patterns and community structure in three freshwater systems of Cuatro Ciénegas, Mexico

Vélez

Gasca-Pineda

Rosique-Gil

et al. 2016

PeerJ

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“…However, Emericella nidulans was isolated with rare occurrence from "Casa Caiada" and "Bairro Novo" beaches, Brazil (Gomes et al, 2008). It was stated that Emericella nidulans is a typical soil fungus isolated from the desert and saline soil (Abdel-Fattah et al, 1977). The true osmophilic fungus, Eurotium, was recorded from 4 lakes (Hamra, Al Beida, Al Gaar, and Khadra) during 5 out of 6 seasons of study.…”

Section: Osmophilic and Osmotolerant Fungi In Mud Collected From Wadi El-natrun Lakesmentioning

confidence: 99%

“…Shearer (1972) showed that as salinity increased, the rate of Ascomycetes to Fungi imperfect increased, while the number of species collected generally reduction. It was also stated that Emericella nidulans is a typical soil fungus isolated from the desert and saline soil (Abdel-Fattah et al, 1977;Moustafa, 1975).…”

Section: Osmophilic and Osmotolerant Fungi From Salt Crusts Collected From Wadi El-natrun Lakesmentioning

confidence: 99%

Osmophilic/osmotolerant and halophilic/halotolerant fungi from mud, salt crusts, and air collected from Wadi El- Natrun lakes

Gouda¹

2020

J. Multidiscip. Sci.

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A total number of osmophilic and osmotolerant mycobiota (45 species related to 21 genera) were collected from mud (the most dominant genera were Aspergillus (6 species), Emericella (3), Eurotium (3), Fusarium (3), and Penicillium (4), salt crusts (Aspergillus (8), Penicillium (4) and Emericella (3) and aerobiota (Cladosporium (4), Alternaria (3), Aspergillus (6) of Wadi El-Natrun lakes on Czapek Dox agar supplemented with 40% sucrose during the seasons of study. The halophilic and halotolerant mycobiota (22 species related to 13 genera) were collected from mud, salt crusts (only Acremonium strictum) and aerobiota (Cladosporium (3 species), Aspergillus (5), and Alternaria (3) on Czapek Dox agar supplemented with 10% sodium chloride during the seasons of study.

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“…have been isolated from a sandy beach of Great Salt Lake, Utah (Amon, 1978). In the Zygomycota, Mucor hiemalis, M. racemosus, M. circinelloides, Rhizopus nigricans, R. oryzae and R. stolonifer have occasionally been isolated from saline soil and Mucor circinelloides and M. hiemalis from salterns (Abdel-Fattah et al, 1977;Abdel-Hafez, 1982;Guiraud et al, 1995;Grishkan et al, 2003;Steiman et al, 1995Steiman et al, , 1997. In addition, Mucor circinelloides, M. racemosus, M. spinulosus and Rhizopus stolonifer are known as food-borne fungi.…”

Section: Introductionmentioning

confidence: 99%

Adaptation to Life at High Salt Concentrations in Archaea, Bacteria, and Eukarya

Gunde‐Cimerman¹,

Oren²,

Plemenitaš³

2005

Cellular Origin, Life in Extreme Habitats and Astrobiology

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Studies on mycoflora of salt marshes in Egypt. i. sugar fungi

Cited by 38 publications

References 17 publications

Microfungal oasis in an oligotrophic desert: diversity patterns and community structure in three freshwater systems of Cuatro Ciénegas, Mexico

Microfungal oasis in an oligotrophic desert: diversity patterns and community structure in three freshwater systems of Cuatro Ciénegas, Mexico

Osmophilic/osmotolerant and halophilic/halotolerant fungi from mud, salt crusts, and air collected from Wadi El- Natrun lakes

Adaptation to Life at High Salt Concentrations in Archaea, Bacteria, and Eukarya

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