Euglenoids from the El Farafra Oasis (Western Desert, Egypt)

Wołowski, Konrad; Saber, Abdullah A.; Cantonati, Marco

doi:10.1515/pbj-2017-0017

Cited by 7 publications

(7 citation statements)

References 25 publications

(24 reference statements)

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“…To keep the true color of algae, a few drops of CuSO 4 solution was added 19 . In this study, algal identification was based on the 7,[20][21][22][23] . Euglenophyta were identified as soon as possible to avoid loss of the taxonomic characters by light Microscope (Hund Wetzel S200) at 10X, 40X magnification.…”

Section: Sample Collection and Identification Of Algaementioning

confidence: 99%

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Algal study in springs and streams from Shaqlawa district, Erbil Province, Iraq I- Euglenophyta

Toma

Aziz²

2022

Baghdad Sci.J

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In an intensive study of the various species of the Euglenophyceae under different environmental conditions, the algal samples were collected monthly in twelve springs and six related streams from September 2019 to August 2020 within Shaglawa district-Erbil Province in virgin areas for phycolimnological study. Twenty species of Euglenophyceaen are identified as a new record for the algal flora. These taxa consist of Colacium vesiculosum, Lepocinclis salina and L.wangi, Eutreptia viridis, Euglena chlamydophora, E. clavata, E. geniculata, E. intermedia var klebsii, E. limnophila, E. oblonga, E. sociabilis, E. stellate and E. variabilis, Peranema sacculus, Phacus circumflexus, Ph. dangeardii, Ph. peteloti, Petalomonas mediocanella var disomata, Trachelomonas manginii, and T. volvocina var derephora. All of these new records are described and illustrated as much as possible. According to physicals and chemicals characteristics, water temperature varied from 14.942˚C to 18.475˚C, pH lies on alkaline side of neutrality, electrical conductivity ranged between (627.472-2092.306µs/cm) and high concentration of salinity recorded in Azarian spring.

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Section: Sample Collection and Identification Of Algaementioning

confidence: 99%

“…They are autotrophic species, while a few of them are heterotrophic. Euglenophyta relatively responses to eutrophication 6,7 . A total number of Euglenoides recorded in Iraq and Kurdistan Region are 54 and 21 taxa respectively 8, 9. Despite worldwide importance of Euglenophyta; it receives little attention in Iraq.…”

Section: Introductionmentioning

confidence: 99%

Algal study in springs and streams from Shaqlawa district, Erbil Province, Iraq I- Euglenophyta

Toma

Aziz²

2022

Baghdad Sci.J

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“…Human influence resulting from industrial, domestic and agricultural activities has drastically altered the chemistry, particularly nutrient concentration in many freshwater bodies. Such influence affected the environment and subsequently altered occurrence, distribution, morphology and ecophysiology of large groups of microalgae including euglenoids (Wołowski et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Euglenoids in Haqlan Springs and Euphrates River at Hadithah City, Western Iraq

Ali¹

2021

Biol. Appl. Environ. Res.

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The present study aimed to investigate the species of euglenoid algae in the Euphrates river and Haqlan valley springs at Al-Anbar province, Western Iraq. Samples were collected in October 2019 from two sites in the study area. Some environmental parameters measured were water temperature, pH, electrical conductivity, salinity, sulphate, total hardness, total alkalinity, nitrate and phosphate. Fifty-four species of the euglenoids belonging to six genera were encountered, one belonged to Monomorphina, two belonged to Colacium, 19 to Euglena, 10 to Trachelomonas, seven to Lepocinclis and 15 to Phacus. Thirteen species were new records in Iraq. Ten species were recorded in two sites. Most of the euglenoids found in this study occurred in Haqlan springs and were represented by 40 species in comparison to 24 species in the Euphrates river.

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“…and the new desmid Euastrum elfarafraense, respectively, in an agricultural ditch fed by the rheocrenic hypothermal freshwater spring "Ain El-Balad" in the El-Farafra Oasis, Western Desert of Egypt, based on unique character combinations of morphology, autecology and molecular phylogenetics. The recently published work of Wołowski et al (2017) on euglenoids of the same oasis reported 20 species, of which the colorless Peranema inflexum and the three pigmented species Euglena adhaerens, Phacus crassus, and Ph. cristatus were new records for Egypt.…”

Section: Introductionmentioning

confidence: 99%

“…The principal aim of this study was to contribute to a response to this important question, in the above-mentioned literature and other papers, have been primarily based on light microscopyuncovered morphological traits, overlooking ultrastructural details which are crucial for precise species delineation, particularly in diatoms. Besides the interest in their spatio-temporal distribution and ecological niches, algal-and diatom-based environmental assessment (El-Naghy et al, 2006;El-Sheekh et al, 2010;Shaaban et al, 2012Shaaban et al, , 2015Abd El-Karim, 2014;Wołowski et al, 2017;Yusuf et al, 2018) and paleoenvironmental reconstructions (e.g., Zalat, 2003) have also been pursued in some studies. Given that Egyptian phycological investigations are mostly restricted to the River-Nile basin, lakes, pools, and agricultural drainages, the little-explored and untouched desert ecosystems in the Western and Eastern Deserts still await first or more intensive polyphasic studies, i.e.…”

Section: Introductionmentioning

confidence: 99%

Taxonomic and Ecological Observations on Some Algal and Cyanobacterial Morphospecies New for or Rarely Recorded in Either Egypt or Africa

et al. 2020

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T HE UNDERSTANDING of the diversity and spatial distribution of cyanoprokaryotes and algae in Egypt is challenging because this is still an understudied topic. To address this knowledge gap, we discuss morphotaxonomic features and ecological preferences for ten cyanobacterial and algal morphospecies from diverse Egyptian biotopes. Morphospecies were studied and identified using state-of-the-art and fine-grained taxonomy based on light and scanning electron microscope observations. Of these taxa, the cyanoprokaryotes Lemmermanniella uliginosa and Scytonema myochrous, the freshwater diatoms Cyclotella meduanae, Cavinula lapidosa, and Craticula subminuscula, the unicellular chrysophyte Mallomonas crassisquama, and the worldwide rarely-recorded zygnematalean streptophyte Hallasia cf. reticulata are designated as new records for Egypt. Moreover, the latter and L. uliginosa are as well first records for the whole African continent. Worthy of note, the freshwater diatoms Cyclostephanos invisitatus, Encyonema neomesianum, and Gomphonema laticollum have been rarely observed in previous Egyptian studies. Overall, most taxa identified tolerate increased nutrient concentrations (mesoeutraphentic and eutraphentic species), reflecting different human impacts on the biotopes they colonize. These newly recorded taxa are supposed to have been mostly overlooked in the previous Egyptian studies due to their relatively isolated habitats, small size, or complex taxonomic and nomenclatural history. More interesting algal and cyanobacterial taxa are still hidden and not yet discovered in Egypt, particularly in the little-explored and isolated desert habitats, and further research, using integrated polyphasic approaches, is therefore indispensable to achieve a better estimate of the Egyptian cyanobacterial and algal diversity, and to set up efficient algae-based assessment systems tailored for the Egyptian habitats.

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Euglenoids from the El Farafra Oasis (Western Desert, Egypt)

Cited by 7 publications

References 25 publications

Algal study in springs and streams from Shaqlawa district, Erbil Province, Iraq I- Euglenophyta

Algal study in springs and streams from Shaqlawa district, Erbil Province, Iraq I- Euglenophyta

Euglenoids in Haqlan Springs and Euphrates River at Hadithah City, Western Iraq

Taxonomic and Ecological Observations on Some Algal and Cyanobacterial Morphospecies New for or Rarely Recorded in Either Egypt or Africa

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