Two new species of Phyllonema (Rivulariaceae, Cyanobacteria) with an emendation of the genus

@article{GonzlezResendiz2018TwoNS,
  title={Two new species of Phyllonema (Rivulariaceae, Cyanobacteria) with an emendation of the genus},
  author={Laura Gonz{\'a}lez-Resendiz and Jeffrey R. Johansen and Viviana Escobar-S{\'a}nchez and Claudia Segal-Kischinevzky and Luis Felipe Jim{\'e}nez-Garcia and Hilda P. Le{\'o}n-Tejera},
  journal={Journal of Phycology},
  year={2018},
  volume={54}
}
Two untapered, heterocytous species were observed and collected from the intertidal and supratidal zones of the Mexican coastline of the Pacific Ocean near Oaxaca and from the Gulf of Mexico. These populations were highly similar in morphology to the freshwater taxon Petalonema incrustans in the Scytonemataceae. However, 16S rRNA sequence data and phylogenetic analysis indicated that they were sister taxa to the epiphyllic, Brazilian species Phyllonema aveceniicola in the Rivulariaceae… 
7 Citations
Two new Oculatella (Oculatellaceae, Cyanobacteria) species in soil crusts from tropical semi-arid uplands of México
TLDR
Two isolates of Oculatella from biological soil crusts in the arid and semi-arid tropical upland region of Mexico were characterized using a polyphasic approach which included morphology, ecology, 16S rRNA and 16S-23S ITS phylogenetic analysis, and percent dissimilarity among ITS gene sequences in orthologous ribosomal operons.
When will taxonomic saturation be achieved? A case study in Nunduva and Kyrtuthrix (Rivulariaceae, Cyanobacteria)
TLDR
Two new species of Nunduva and Kyrtuthrix are characterized and described from the coasts of Mexico and Morphological differences between all existing species in these two genera were observed, but the group is morphologically complex, and these taxa are considered pseudocryptic.
Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria
TLDR
The current study includes several experimental strains important for the study of diazotrophy and the global oceanic nitrogen cycle, and provides evidence suggesting ancestral N2‐fixing capability in the chroococcalean lineage.
When Is A Lineage A Species? A Case Study In Myxacorys gen. nov. (Synechococcales: Cyanobacteria) With The Description of Two New Species From The Americas
TLDR
42 strains of simple filamentous cyanobacteria previously identified as Pseudophormidium hollerbachianum are isolated from 26 desert locations in the North and South America and characterized these strains using a total evidence approach, using both morphological and molecular data to arrive at taxonomic decisions.
A new boring toxin producer – Perforafilum tunnelli gen. & sp. nov. (Oscillatoriales, Cyanobacteria) isolated from Laguna Madre, Texas, USA
TLDR
Initial comparison of this new taxon with its polyphasically closest genus, Oxynema, showed several morphological, physiological, and phylogenetic differences, warranting establishment of a new family Laspinemaceae, containing Perforafilum tunnelli gen. & sp.
Odorella benthonica gen. & sp. nov. (Pleurocapsales, Cyanobacteria): an odor and prolific toxin producer isolated from a California aqueduct
TLDR
The new genus Odorella is described, the first known pleurocapsalean cryptic taxon, which produces off‐flavor and a large number of bioactive metabolites some of which can be toxic including four known microcystins.
A bridge too far in naming species: a total evidence approach does not support recognition of four species in Desertifilum (Cyanobacteria)
TLDR
A population of Desertifilum from an oligotrophic desertic biotope was isolated and characterized using a polyphasic approach including molecular, morphological, and ecological information, and phylogenetic analyses placed this strain clearly within the type species, D. tharense.

References

SHOWING 1-10 OF 58 REFERENCES
Nunduva, a new marine genus of Rivulariaceae (Nostocales, Cyanobacteria) from marine rocky shores
TLDR
A new genus and four species are proposed for members of this distinctive clade of cyanobacteria, Nunduva fasciculata gen. nov, based on molecular data for other cyanob bacteria within the rivulariacean clade, which shows more pronounced tapering.
Macrochaete gen. nov. (Nostocales, Cyanobacteria), a taxon morphologically and molecularly distinct from Calothrix
TLDR
The morphology and phylogeny of 45 tapering cyanobacteria in the Rivulariaceae are examined, including freshwater and marine representatives of both Calothrix and its sister taxon Rivularia, and three species are recognized: M. psychrophila from cold environments, M. santannae from wet walls of subtropical South America, and M. lichenoides, a phycobiont of lichens from Europe.
Roholtiella , gen. nov. (Nostocales, Cyanobacteria)—a tapering and branching cyanobacteria of the family Nostocaceae
TLDR
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.
Phylogenetic placement of Symplocastrum (Phormidiaceae, Cyanophyceae) with a new combination S. californicum and two new species: S. flechtnerae and S. torsivum
TLDR
A more precise description of Symplocastrum is provided, including its phylogenetic position based on 16S rRNA gene sequence, which concluded that this cyanobacterial genus was poorly understood and lacked molecular definition.
A UNIQUE PSEUDANABAENALEAN (CYANOBACTERIA) GENUS NODOSILINEA GEN. NOV. BASED ON MORPHOLOGICAL AND MOLECULAR DATA 1
TLDR
Members of this clade possess both a morphological synapomorphy and shared 16S‐23S internal transcribed spacer (ITS) secondary structure, allowing the diagnosis of the new cyanobacterial genus Nodosilinea.
Seven new species of Oculatella (Pseudanabaenales, Cyanobacteria): taxonomically recognizing cryptic diversification
TLDR
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.
Morphological and molecular characterization within 26 strains of the genus Cylindrospermum (Nostocaceae, Cyanobacteria), with descriptions of three new species
TLDR
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.
A revision of the genus Geitlerinema and a description of the genus Anagnostidinema gen. nov. (Oscillatoriophycidae, Cyanobacteria)
TLDR
The genetic position, short review and characteristics of the newly defined genus Anagnostidinema is presented, which was selected in memory of the prominent late cyanobacterial specialist Konstantinos AnagnOSTidis, and is proposed for this genus.
Spirirestis rafaelensis gen. et sp. nov. (Cyanophyceae), a new cyanobacterial genus from arid soils
TLDR
Cyanobacterial genus and species Spirirestis rafaelensis is described from soils of a semi-arid Utah juniper community in the San Rafael Swell, Utah, and 16S rRNA sequence data suggest that Spiritestis is more closely related toMembers of the Microchaetaceae than to members of the Scytonemataceae or Rivulariaceae.
The subaerophytic cyanobacterium Oculatella subterranea (Oscillatoriales, Cyanophyceae) gen. et sp. nov.: a cytomorphological and molecular description
TLDR
A new genus and species of subaerophytic cyanobacteria with very thin purple-red trichomes with a photosensitive orange spot at the tip of the trichome containing a rhodopsin-like pigment is proposed, Oculatella subterranea.
...
1
2
3
4
5
...