Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species

A water sample was obtained from an arheic oasis in the deep Sahara Desert, the Gueltates Afilal in Tamanrasset (Algeria). Five diatom strains were isolated, cultivated and identified as Tryblionella apiculata, Nitzschia supralitorea, Fistulifera saprophila, Navicula veneta and Thalassiosira pseudon...

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Autores principales:	Romain Gastineau, Chahinez Hamedi, Mohammed Bey Baba Hamed, Sidi-Mohammed El-Amine Abi-Ayad, Małgorzata Bąk, Claude Lemieux, Monique Turmel, Sławomir Dobosz, Rafał J. Wróbel, Agnieszka Kierzek, Horst Lange-Bertalot, Andrzej Witkowski
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Diatoms Sahara Oasis Gueltates Afilal NGS SEM Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/a8abc0f9159c48c7b28aed668c54d6aa
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spelling	oai:doaj.org-article:a8abc0f9159c48c7b28aed668c54d6aa2021-12-01T04:35:15ZMorphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species1470-160X10.1016/j.ecolind.2020.107104https://doaj.org/article/a8abc0f9159c48c7b28aed668c54d6aa2021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20310438https://doaj.org/toc/1470-160XA water sample was obtained from an arheic oasis in the deep Sahara Desert, the Gueltates Afilal in Tamanrasset (Algeria). Five diatom strains were isolated, cultivated and identified as Tryblionella apiculata, Nitzschia supralitorea, Fistulifera saprophila, Navicula veneta and Thalassiosira pseudonana using a combination of scanning electron microscopy and next generation sequencing. The diatoms identified are opportunistic and cosmopolitan species with known tolerances to organic pollution and variations in salinities, often found in meso- and polysaprobic zones in Europe. Their complete organellar genomes have been sequenced and some exhibit features never observed among diatoms before. To our knowledge this is the first time that living specimens of diatoms from the deep Sahara are identified using modern taxonomical tools in the frame of a study which also demonstrates the possibility to cultivate such material in laboratories for further experiments on biogeography and bioindication. Our study also suggests that European identification keys can be effective when employed on diatoms from the Sahara.Romain GastineauChahinez HamediMohammed Bey Baba HamedSidi-Mohammed El-Amine Abi-AyadMałgorzata BąkClaude LemieuxMonique TurmelSławomir DoboszRafał J. WróbelAgnieszka KierzekHorst Lange-BertalotAndrzej WitkowskiElsevierarticleDiatomsSaharaOasisGueltates AfilalNGSSEMEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107104- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Diatoms Sahara Oasis Gueltates Afilal NGS SEM Ecology QH540-549.5
spellingShingle	Diatoms Sahara Oasis Gueltates Afilal NGS SEM Ecology QH540-549.5 Romain Gastineau Chahinez Hamedi Mohammed Bey Baba Hamed Sidi-Mohammed El-Amine Abi-Ayad Małgorzata Bąk Claude Lemieux Monique Turmel Sławomir Dobosz Rafał J. Wróbel Agnieszka Kierzek Horst Lange-Bertalot Andrzej Witkowski Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species
description	A water sample was obtained from an arheic oasis in the deep Sahara Desert, the Gueltates Afilal in Tamanrasset (Algeria). Five diatom strains were isolated, cultivated and identified as Tryblionella apiculata, Nitzschia supralitorea, Fistulifera saprophila, Navicula veneta and Thalassiosira pseudonana using a combination of scanning electron microscopy and next generation sequencing. The diatoms identified are opportunistic and cosmopolitan species with known tolerances to organic pollution and variations in salinities, often found in meso- and polysaprobic zones in Europe. Their complete organellar genomes have been sequenced and some exhibit features never observed among diatoms before. To our knowledge this is the first time that living specimens of diatoms from the deep Sahara are identified using modern taxonomical tools in the frame of a study which also demonstrates the possibility to cultivate such material in laboratories for further experiments on biogeography and bioindication. Our study also suggests that European identification keys can be effective when employed on diatoms from the Sahara.
format	article
author	Romain Gastineau Chahinez Hamedi Mohammed Bey Baba Hamed Sidi-Mohammed El-Amine Abi-Ayad Małgorzata Bąk Claude Lemieux Monique Turmel Sławomir Dobosz Rafał J. Wróbel Agnieszka Kierzek Horst Lange-Bertalot Andrzej Witkowski
author_facet	Romain Gastineau Chahinez Hamedi Mohammed Bey Baba Hamed Sidi-Mohammed El-Amine Abi-Ayad Małgorzata Bąk Claude Lemieux Monique Turmel Sławomir Dobosz Rafał J. Wróbel Agnieszka Kierzek Horst Lange-Bertalot Andrzej Witkowski
author_sort	Romain Gastineau
title	Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species
title_short	Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species
title_full	Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species
title_fullStr	Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species
title_full_unstemmed	Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species
title_sort	morphological and molecular identification reveals that waters from an isolated oasis in tamanrasset (extreme south of algerian sahara) are colonized by opportunistic and pollution-tolerant diatom species
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a8abc0f9159c48c7b28aed668c54d6aa
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Morphological and molecular identification reveals that waters from an isolated oasis in Tamanrasset (extreme South of Algerian Sahara) are colonized by opportunistic and pollution-tolerant diatom species

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