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Polyphasic characterization of Westiellopsis prolifica (Hapalosiphonaceae, Cyanobacteria) from the El-Farafra Oasis (Western Desert, Egypt)

SYSNO ASEP	0482415
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Polyphasic characterization of Westiellopsis prolifica (Hapalosiphonaceae, Cyanobacteria) from the El-Farafra Oasis (Western Desert, Egypt)
Author(s)	Saber, A. A. (EG) Cantonati, M. (IT) Mareš, Jan (BU-J)_RID Anesi, A. (IT) Guella, G. (IT)
Source Title	Phycologia. - : Taylor & Francis - ISSN 0031-8884 Roč. 56, č. 6 (2017), s. 697-709
Number of pages	13 s.
Language	eng - English
Country	US - United States
Keywords	16S rRNA ; Egypt ; Westiellopsis
Subject RIV	EF - Botanics
OECD category	Plant sciences, botany
R&D Projects	GA15-11912S GA ČR - Czech Science Foundation (CSF)
Institutional support	BU-J - RVO:67985939
UT WOS	000414338600009
EID SCOPUS	85033564700
DOI	10.2216/16-107
Annotation	Westiellopsis prolifica, a true-branching cyanobacterium isolated from the hyperarid desert soil habitats of El-Farafra Oasis (Western Desert of Egypt), was investigated with a polyphasic approach. The main morphological characteristics of our material, together with its habitat properties, corresponded (with minor discrepancies in the dimensions) to descriptions in the literature. On the basis of molecular data of the 16S ribosomal RNA gene, the strain of W. prolifica isolated from the El-Farafra Oasis clustered with available isolates of Westiellopsis and other genera of Hapalosiphonaceae. Bio-organic screening showed the presence of thylakoid lipids characterized by low unsaturation index and short fatty acyl chains, features presumably ensuring membrane functionality at high temperatures. Carotenoid and xanthophyll composition were typical of cyanobacteria (a/b carotene 38.1%, echinenone 14.3%, zeaxanthin 13.4%, and myxoxanthophyll 8.8%). This study improved the knowledge on the distribution, autecology, phylogenetic position, and bio-organic characteristics of W. prolifica. Moreover, it confirmed that polyphasic studies of cyanobacteria are not only an important prerequisite for species delineation, but are also useful in characterizing ecophysiological adaptive mechanisms to special habitats.,
Workplace	Institute of Botany
Contact	Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8
Year of Publishing	2018

Number of the records: 1