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Molecular and morphological criteria for revision of the genus Microcoleus (Oscillatoriales, Cyanobacteria)
The main diacritical characters defining Microcoleus are related to the cytomorphology of trichomes, including: narrowed trichome ends, calyptra, cells shorter than wide up to more or less isodiametric, and facultative presence of sheaths. Expand
Molecular evidence for the polyphyletic origin of low pH adaptation in the genus Klebsormidium (Klebsormidiophyceae, Streptophyta)
The genus Klebsormidium is a group of morphologically and physiologically dynamic algae in which the capacity of adaptation to low pH conditions has been developed multiple times independently. Expand
Description of the cyanobacterial genus Desmonostoc gen. nov. including D. muscorum comb. nov. as a distinct, phylogenetically coherent taxon related to the genus Nostoc
A new genus is described, Desmonostoc gen. nov, which includes the traditional species Nostoc muscorum Agardh ex Bornet et Flahault 1888, and several other strains previously assigned to the genus Nostoc, which present similar morphology and phylogenetic placement within the DesMonostoc lineage. Expand
Soil Algae in Brown Coal and Lignite Post-Mining Areas in Central Europe (Czech Republic and Germany)
Green algae prevailed in both areas, but in Sokolov cyanobacteria and diatoms were also quite diverse, and in younger sites they were also abundant, and species number was high in young sites, decreased with increasing age, and was the lowest in control forests. Expand
Diversity and abundance of soil algae in the polar desert, Sverdrup Pass, central Ellesmere Island
Cyanobacteria and eukaryotic algae were investigated during three seasons in 18 plots established across Sverdrup Pass valley of central Ellesmere Island, 79°N, Canada. The sites differed inExpand
Differential patterns of evolution and distribution of the symbiotic behaviour in nostocacean cyanobacteria.
The phylogenetic analysis showed that two distinct patterns of evolution of symbiotic behaviour might exist for the nostocacean cyanobacteria, one leading to symbioses of Nostoc species with a wide variety of plants, the other leading to the association of a unique cyanobacterial type with the water fern Azolla. Expand
A Broad Phylogenetic Survey Unveils the Diversity and Evolution of Telomeres in Eukaryotes
Analysis of genomic data from major eukaryotic lineages and genome assemblies from on-going genome projects for representatives of three hitherto unsampled lineages confirm the human-type repeat as the most common and possibly ancestral in eucaryotes, but alternative motifs replaced it along the phylogeny of diverse eukarian lineages. Expand
Dynamic Evolution of Telomeric Sequences in the Green Algal Order Chlamydomonadales
The results support the view that the Arabidopsis-type telomeric sequence is ancestral for green algae and has been conserved in most lineages and indicate that telomere evolution in green algae, particularly in the order Chlamydomonadales, is far more dynamic and complex than thought before. Expand
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. Expand
Can laboratory toxicity tests explain the pattern of field communities of algae, plants, and invertebrates along a toxicity gradient of post-mining sites?
Abstract The responses of soil algae, vascular plants, and invertebrates to soils collected along a toxicity gradient of post-mining sites were measured in laboratory toxicity tests, and theExpand