Results 181 to 190 of about 18,067 (226)

Molecular phylogeny of the diatom genera Amphora and Halamphora (Bacillariophyta) with a focus on morphological and ecological evolution

Journal of Phycology, 2019
The taxonomic history of the diatom genus Amphora is one of a broad early morphological concept resulting in the inclusion of a diversity of taxa, followed by an extended period of revision and refinement.
Joshua G Stepanek, J. Patrick Kociolek
semanticscholar   +1 more source

Connecting the morphological and molecular species concepts to facilitate species identification within the genus Fragilaria (Bacillariophyta)

Journal of Phycology, 2019
This paper explores the diversity and taxonomy of species within Fragilaria sensu stricto, an abundant and ecologically important diatom genus, taking advantage of cultured and DNA‐barcoded material.
M. Kahlert, M. Kelly, D. Mann, F. Rimet, Shinya Sato, A. Bouchez, F. Keck   +6 more
semanticscholar   +1 more source

Six new epibiotic Proschkinia (Bacillariophyta) species and new insights into the genus phylogeny

European journal of phycology, 2019
The diatom genus Proschkinia is a common element of biofilms covering diverse substrata in saline inland or shallow coastal environments. It can be distinguished from other naviculoid taxa by its lanceolate valves with a fistula located within the ...
R. Majewska, Sunčica Bosak, T. Frankovich, M. Ashworth, M. Sullivan, N. Robinson, E. Lazo-Wasem, T. Pinou, R. Nel, S. Manning, B. Van de Vijver   +10 more
semanticscholar   +1 more source

Brackish diatom species (Bacillariophyta) from rivers of Rhin-Meuse basin in France

, 2020
The French part of the Rhin-Meuse basin is quite heterogeneous due to the broad variability in pH and conductivity ranges of its rivers and streams. Parts of the basin are characterized by the presence of typical natural or anthropogenically induced ...
David Heudre, C. E. Wetzel, B. Van de Vijver, Laura Moreau, L. Ector   +4 more
semanticscholar   +1 more source

A polyphasic approach to the delimitation of diatom species: a case study for the genus Pinnularia (Bacillariophyta)

Journal of Phycology, 2019
Diatoms are one of the most abundant and arguably the most species‐rich group of protists. Diatom species delimitation has often been based exclusively on the recognition of morphological discontinuities without investigation of other lines of evidence ...
J. Kollár, Eveline Pinseel, P. Vanormelingen, A. Poulíčková, Caroline Souffreau, P. Dvořák, W. Vyverman   +6 more
semanticscholar   +1 more source

Extreme diversity in fine-grained morphology reveals fourteen new species of conopeate Nitzschia (Bacillariophyta: Bacillariales)

Phytotaxa, 2019
A study was made of the ultrastructural variation in a group of conopeate Nitzschia species, primarily marine species from Guam but also including one freshwater species from Costa Rica.
C. Lobban, M. Ashworth, Jerilyn Calaor, E. Theriot   +3 more
semanticscholar   +1 more source

For better, for worse: manatee-associated Tursiocola (Bacillariophyta) remain faithful to their host.

Journal of Phycology, 2020
With the advent of more comprehensive research into the microbiome and interactions between animals and their microbiota, new solutions can be applied to address conservation challenges such as husbandry and medical care of captive animals.
R. Majewska, W. Goosen
semanticscholar   +1 more source

Two new Punctastriata (Bacillariophyta) species from subalpine French lakes

Botany Letters, 2020
Two new diatom species are described from France. Both species have characters that allow them to be included in the genus Punctastriata D.M.Williams & Round whose main defining character is the “multiseriate striae” (i.e. presence of slender vimines and
C. E. Wetzel, L. Ector
semanticscholar   +1 more source

Auxosporulation in Biddulphia tridens (Ehrenberg) Ehrenberg (Mediophyceae, Bacillariophyta)

, 2020
We documented male and female gametogenesis, auxospore structure and development of the biddulphioid diatom species Biddulphia tridens (Ehrenberg) Ehrenberg, a close relative of the generitype. Our mating experiments showed that the B.
Brajogopal Samanta, I. Kaczmarska, J. Ehrman   +2 more
semanticscholar   +1 more source

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2019
This scanning electron microscopy study of phytoepiphyton, collected in 2016???2018 from the reservoirs system of the Dnieper River (Kiev, Kremenchug, Dneprodzerzhynsk, Zaporozhzhia (Dnieper), Kakhovka) and the Lower Dnieper, has revealed 133 species of diatom algae, represented by 138 intraspecific taxa from 43 genera, 22 families, 13 orders and 3 ...
  +8 more sources