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Seven new species of Oculatella (Pseudanabaenales, Cyanobacteria): taxonomically recognizing cryptic diversification
This report is the first to use solely molecular criteria to distinguish cryptic species of cyanobacteria using molecular characters in the genus Oculatella from all four soil taxa.
Biosynthesis of gold nanoparticles using diatoms—silica-gold and EPS-gold bionanocomposite formation
Novel synthesis of gold nanoparticles, EPS-gold, and silica-gold bionanocomposites by biologically driven processes employing two diatom strains (Navicula atomus, Diadesmis gallica) is described.…
A combined morphological, ultrastructural, molecular, and biochemical study of the peculiar family Gomontiellaceae (Oscillatoriales) reveals a new cylindrospermopsin‐producing clade of cyanobacteria
This study indicates that cyanobacteria of the family Gomontiellaceae form a separate but coherent cluster defined by numerous intriguing morphological, ultrastructural, and biochemical features, and exhibiting a toxic potential worthy of further investigation.
Reassessment of the cyanobacterial family Microchaetaceae and establishment of new families Tolypothrichaceae and Godleyaceae
- T. Hauer, M. Bohunická, J. Johansen, J. Mareš, Esther Berrendero-Gomez
- BiologyJournal of phycology
- 1 December 2014
This study provides reassessment of the status of the family Microchaetaceae based on morphology, ecology, biogeography, and phylogeny of 16S rRNA gene, and proposes establishment of two new families, Tolypothrichaceae and Godleyaceae.
Roholtiella , gen. nov. (Nostocales, Cyanobacteria)—a tapering and branching cyanobacteria of the family Nostocaceae
Four new species within the genus Roholtiella are described, which are easily distinguished based on the sequence of the 16S-23S ITS regions, in particular the flanking regions to the conserved Box-B and V3 helices.
Phenotype diversity and phylogeny of selected Scytonema-species (Cyanoprokaryota) from SE Brazil.
Members of the genus Scytonema belong to prominent components of microflora of tropical and subtropical soils, but their diversity and taxonomic classification is still little known. Molecular…
Revision of the Synechococcales (Cyanobacteria) through recognition of four families including Oculatellaceae fam. nov. and Trichocoleaceae fam. nov. and six new genera containing 14 species
- Truc Mai, J. Johansen, N. Pietrasiak, M. Bohunická, Michael P. Martin
- 16 August 2018
Phylogenetic analysis of the 16S rRNA gene data and Bayesian inference of a large Synechococcales alignment was in agreement with the phylogeny based on the rpoC1 gene for 59 OTU’s, indicating that the large family-level grouping formerly classified as the Leptolyngbyaceae could be further divided into four family- level clades.
Morphological and molecular characterization within 26 strains of the genus Cylindrospermum (Nostocaceae, Cyanobacteria), with descriptions of three new species
- J. Johansen, M. Bohunická, A. Lukešová, K. Hrčková, Melissa A. Vaccarino, Nicholas M. Chesarino
- BiologyJournal of phycology
- 1 February 2014
Cylindrospermum is unusual among cyanobacterial genera in that the morphological diversity appears to be more evident than sequence divergence, and there is likely much more diversity remaining to be described in this genus.
Tapinothrix clintonii sp. nov. (Pseudanabaenaceae, Cyanobacteria), a new species at the nexus of five genera.
A new species was isolated and characterized from Grand Staircase-Escalante National Monument and has very distinctive morphology and 16S-23S ITS sequence and secondary structure that support the conclusion to recognize Tapinothrix as a genus separate from Leptolyngbya.
Neotypification of Pleurocapsa fuliginosa and epitypification of P. minor (Pleurocapsales): resolving a polyphyletic cyanobacterial genus
P. fuliginosa and P. minor HA4230-MV1 were chosen as neotype and epitype, respectively, establishing the genus Pleurocapsa based on molecular sequence data, which has an unusually long, branched D5 helix at the termination of the ITS region.