2014
DOI: 10.21608/jesj.2014.196788
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Seasonal fluctuation of freshwater ascomycetes in Nile Delta region (Egypt)

Abstract: Seasonality of freshwater ascomycetes was studied in Nile Delta region from February 2010 to December 2011. One hundred and ten ascomycetes were identified through this investigation. The most common ascomycetes recovered during fluctuation study of Delta region were Zopfiella latipes, Microthelia sp. 1, Helicascus aegyptiacus and Naïs aquatica. Physico-chemical analysis (Water temperature, pH, concentration of NH3, NO2and PO4 3-) were recorded and had significant effect during this study.

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Cited by 3 publications
(3 citation statements)
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“…The difference in the results was affected by various factors, such as pH, salinity, temperature, humidity, and incubation period (Shahat 2017;Gomez et al 2020;Becker et al 2021). Abdel-Raheem and Shearer (2002) also stated that there are several explanations of the absence of a positive result. It could mean that either the enzyme is not produced; or it was not secreted from the cells into the agar medium, or that it is produced and secreted, but the medium inhibits the activity.…”
Section: Discussionmentioning
confidence: 99%
“…The difference in the results was affected by various factors, such as pH, salinity, temperature, humidity, and incubation period (Shahat 2017;Gomez et al 2020;Becker et al 2021). Abdel-Raheem and Shearer (2002) also stated that there are several explanations of the absence of a positive result. It could mean that either the enzyme is not produced; or it was not secreted from the cells into the agar medium, or that it is produced and secreted, but the medium inhibits the activity.…”
Section: Discussionmentioning
confidence: 99%
“…The test includes a proteolysis assay, an amylase assay and a lipase assay which were performed over a period of one week. According to Abdel-Raheem and Shearer (2002), the absence of positive results may mean that the enzyme is either not produced and not released from the mycelium or that the enzyme is produced and released, but the media hinders its detection. Thus, no positive result does not mean that a species cannot produce a particular enzyme.…”
Section: Identification Of Fungus From Diseased African Catfishmentioning
confidence: 99%
“…Lignicolous freshwater fungi are those fungi that grow on submerged woody debris in freshwater habitats, including lentic (e.g., lakes, ponds, swamps, and pools), lotic (e.g., rivers, streams, creeks, brooks), and other habitats (e.g., cooling tower, tree holes) [1][2][3]. They play an important role in the material and energy cycle of freshwater ecosystems [4][5][6][7][8]. Lignicolous freshwater fungi are a highly diverse group, with the majority belonging to Dothideomycetes and Sordariomycetes (Ascomycota), and a few species in Eurotiomycetes and Orbiliomycetes [3,[9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%