<i>Calochaete gen. nov.</i> (Cyanobacteria, Nostocales), a new cyanobacterial type from the “páramo” zone in Costa Rica

2013/06/10 by Tomáš Hauer, Markéta Bohunická, Radka Mühlsteinová · 1 citation
Agricultural and Biological Sciences · Environmental Science · #16S ribosomal RNA #Anatomy #Aquatic Ecosystems and Phytoplankton Dynamics #Bacteria #Biocrusts and Microbial Ecology #Biology #Botany #Cyanobacteria #Ecology #Gene #Genetics #Genus #Microbial Community Ecology and Physiology #Phylogenetic tree #Strain (injury) #Taxonomy (biology) #Type (biology) #Type species

paper · doi:10.11646/phytotaxa.109.1.4

openalex publication_date 2013/06/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02

Abstract

A new tapered and false branched morphotype of filamentous heterocytous cyanobacterium was isolated from soil material collected on a massif of Chirripó Mountain, Costa Rica. The strain was analyzed morphologically and a sequence of its 16S rRNA gene was compared with available 16S rDNA sequences of organisms with similar morphology, especially those with heteropolar tapering filaments. Phylogenetic analyses revealed that the strain was significantly different from Rivulariaceae, but was closely related to several strains designated as Tolypothrix. However, according to the original descriptions in the literature, members of the genus Tolypothrix possess only very slightly tapering filaments. With regard to all these differences, we decided to describe a new genus—Calochaete gen. nov. with type species C. cimrmanii.

Citations

• Phylogenetic structure of the prokaryotic domain: The primary kingdoms
• MrBayes 3.2: Efficient Bayesian Phylogenetic Inference and Model Choice Across a Large Model Space
• Biodiversity hotspots for conservation priorities
• Utility of 16S-23S ITS sequence and secondary structure for recognition of intrageneric and intergeneric limits within cyanobacterial taxa: Leptolyngbya corticola sp. nov. (Pseudanabaenaceae, Cyanobacteria)

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