Fistulifera alcalina sp. nov. (Naviculales, Stauroneidaceae) a new alkaliphilic diatom species from Lake Okeechobee, Florida (USA)

In this work, we propose and describe a novel diatom species, Fistulifera alcalina sp. nov., isolated from Port Mayaca on Lake Okeechobee, Florida (USA). This new diatom species represents a distinct lineage within the genus Fistulifera, which includes F. iranensis (Hustedt) Lange-Bertalot, F. sapro...

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Bibliographic Details
Published in:Diatom research 2020-07, Vol.35 (3), p.301-311
Main Authors: Berthold, David E., Frankovich, Thomas, Gaiser, Evelyn E., Laughinghouse, H. Dail
Format: Article
Language:English
Subjects:
alkaline
Bacillariophyta
Bicarbonates
Diatoms
Eutrophic environments
Eutrophication
fistula
Fistulifera
Genes
Lakes
lipid production
Morphometry
New records
New species
Oligotrophic waters
Phylogeny
Plankton
rRNA 18S
Salinity
Salinity effects
SEM
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Summary:In this work, we propose and describe a novel diatom species, Fistulifera alcalina sp. nov., isolated from Port Mayaca on Lake Okeechobee, Florida (USA). This new diatom species represents a distinct lineage within the genus Fistulifera, which includes F. iranensis (Hustedt) Lange-Bertalot, F. saprophila (Lange-Bertalot & Bonik) Lange-Bertalot, F. pelliculosa (Kützing) Lange-Bertalot, and F. solaris S. Mayama, M. Matsumoto, K. Nemoto & T. Tanaka. Morphometric and molecular phylogenetic analyses of the 18S rRNA and rbcL genes strongly support Fistulifera alcalina as a new species. Fistulifera alcalina sp. nov. is cultured in media with moderate salinity and high bicarbonate concentrations in contrast to the other species of Fistulifera which show ecological preferences for high salinity and eutrophic or oligotrophic waters. This is also the first record of Fistulifera in the southeastern United States (Florida, USA).
ISSN:0269-249X
2159-8347
DOI:10.1080/0269249X.2020.1801517