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

  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},
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
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.
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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)
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.


Nunduva, a new marine genus of Rivulariaceae (Nostocales, Cyanobacteria) from marine rocky shores
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
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
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.
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Seven new species of Oculatella (Pseudanabaenales, Cyanobacteria): taxonomically recognizing cryptic diversification
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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.
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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.
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The subaerophytic cyanobacterium Oculatella subterranea (Oscillatoriales, Cyanophyceae) gen. et sp. nov.: a cytomorphological and molecular description
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