System of cyanoprokaryotes (cyanobacteria) state in 2004

Hoffmann, Lucien; Komárek, Jiří; Kaštovský, Jan

doi:10.1127/1864-1318/2005/0117-0095

Cited by 180 publications

(179 citation statements)

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“…4) is clearly different from typical Aphanothece-strains (Fig. 3), consistent with the view that both types belong in different evolutionary lines (Koma´rek & Kasˇtovsky´, 2003;Hoffmann et al, 2005). A parietal position of the thylakoids is typical for all Anathece species (see also Koma´rek et al, 2001;Jezberova´, 2006a).…”

Section: Anathecesupporting

confidence: 64%

Phylogenetic and taxonomic delimitation of the cyanobacterial genusAphanotheceand description ofAnathece gen. nov.

Komárek

Kaštovský

Jezberová

2011

European Journal of Phycology

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The traditional cyanobacterial form-genus Aphanothece was established according to morphological criteria in the middle of the 19th century by Na¨geli. It comprises unicellular morphotypes with oval or cylindrical cells arranged irregularly in amorphous mucilaginous colonies. Up to now, more than 80 morphospecies have been described, mostly from various freshwater aquatic habitats. The genus Aphanothece is heterogeneous in the traditional morphological concept as well as according to modern molecular criteria. Therefore, it must be divided into several taxonomic clusters. Generic characteristics, studied by a combination of molecular sequencing of 16S rDNA, ultrastructure, ecology and morphological variation, were investigated in selected strains and populations of type species of the traditional subgenera Aphanothece and Anathece. Distinct differences were found between both of these clusters in their position in the phylogenetic tree, ultrastructure of cells, morphology (size of cells), mucilage structure, life cycles and ecology. They must therefore be separated into two genera, according to both bacteriological and botanical criteria, and placed in different orders (Chroococcales and Synechococcales). Accordingly we describe Anathece, gen. et stat. nov., and transfer to it the type A. clathrata comb. nov. and six other species. Several other morphotypes, originally classified in the genus Aphanothece (but morphologically different from Aphanothece sensu stricto), correspond to the genera Cyanoaggregatum, Cyanogastrum, Gloeobacter, Gloeothece and Halothece. The closest relative of Anathece appears to be Cyanobium.

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Section: Anathecesupporting

confidence: 64%

Phylogenetic and taxonomic delimitation of the cyanobacterial genusAphanotheceand description ofAnathece gen. nov.

Komárek

Kaštovský

Jezberová

2011

European Journal of Phycology

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“…For taxonomical identification of cyanobacteria, the establishment of genera is based on both the molecular evaluation of genotypes and phenotypic characters, which are continually corrected and updated (Hoffmann et al, 2005;Komárek et al, 2014). Different hypogean-adapted species with morphological similarity could be attributed to highly convergent forms that can mask taxonomic relationships and morphologically similar types are indistinguishable or barely distinguishable.…”

Section: Discussionmentioning

confidence: 99%

The deterioration of Circular Mausoleum, Roman Necropolis of Carmona, Spain

Cañaveras

Fernández-Cortés

Élez

et al. 2015

Science of The Total Environment

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The Circular Mausoleum in the Roman Necropolis of Carmona was carved on a calcarenite sequence in an ancient quarry located in the town of Carmona, Southern Spain. This rock-cut tomb, representative of Roman burial practices, currently suffers from serious deterioration. A detailed survey over several years permitted the identification of the main tomb's pathologies and damaging processes, which include loss of material (scaling, flaking, granular disintegration), surface modifications (efflorescences, crusts and deposits) and extensive biological colonization. The results obtained in this study indicated that anthropogenic changes were largely responsible and enhanced the main alteration mechanisms observed in the Circular Mausoleum. Based on the deterioration diagnosis, effective corrective actions were proposed. This study shows that any conservation intervention in the interior of the tomb should be preceded by accurate in situ measurements and laboratory analyses to ascribe the source of the deterioration damages and thus designing effective treatments.

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“…Filamentous non-heterocystous forms of Leptolyngbya and Phormidium genera are included in Pseudanabaenales and Oscillatoriales (order), respectively, whereas the unicellular form Synechococcus is inserted to Synechococcales (order). 34 Main morphological features of Leptolyngbya genus are thin, long, isopolar and immotile filaments with facultative sheaths and cells longer than wide without aerotopes. 42 Phormidium genus is characterized by the motility of the unbranched and isopolar filaments and cells wider than long.…”

Section: Resultsmentioning

confidence: 99%

“…The classification system devised by Komárek and Anagnostidis 32,33 and morphological diacritical traits for genera were considered. In addition, the order names proposed by Hoffmann et al 34 are presented.…”

Section: Morphological Evaluationmentioning

confidence: 99%

Decolorization of textile dyes by cyanobacteria

Silva-Stenico¹,

Vieira²,

Genuário³

et al. 2012

J. Braz. Chem. Soc.

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Cianobactérias estão amplamente distribuídas no ambiente e podem ser uma alternativa eficaz e econômica para a remoção de corantes de efluentes de indústrias têxteis. O presente trabalho investigou o potencial de seis linhagens de cianobactérias de descolorir onze tipos de corantes têxteis. A absorção máxima de cada corante foi verificada usando um espectrofotômetro. Espectrometria de massas foi utilizada na verificação da degradação e possível remoção de corantes pelas cianobactérias. Os resultados mostraram que todas as linhagens avaliadas foram capazes de remover indigo, amarelo palanil, amarelo indantreno, azul indantreno, azul dispersol, vermelho indantreno e vermelho dispersol em mais de 50%. O isolado brasileiro Phormidium sp. CENA135 foi capaz de descolorir e remover completamente o índigo azul BANN 30. Este estudo confirmou a capacidade das cianobactérias de descolorir e, possivelmente, degradar corantes têxteis estruturalmente diferentes, sugerindo a possibilidade de sua aplicação em estudos de biorremediação.Cyanobacteria are widely distributed in the environment and may be an effective and economic alternative for removing dyes from textile industry effluents. The present work investigated the potential of six cyanobacterial strains in decolorizing eleven types of textile dyes. The maximum absorbance of each dye was verified using a spectrophotometer. Mass spectrometry was used to verify the removal and possible degradation of dyes by the cyanobacteria. The results showed that all of the evaluated cyanobacteria were able to remove indigo, palanil yellow, indanthrene yellow, indanthrene blue, dispersol blue, indanthrene red and dispersol red by more than 50%. The Brazilian isolate Phormidium sp. CENA135 was able to decolorize and completely remove indigo blue BANN 30. This study confirmed the capacity of cyanobacteria to decolorize and possibly to structurally degrade different textile dyes, suggesting the possibility of their application in bioremediation studies.

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System of cyanoprokaryotes (cyanobacteria) state in 2004

Cited by 180 publications

References 0 publications

Phylogenetic and taxonomic delimitation of the cyanobacterial genusAphanotheceand description ofAnathece gen. nov.

Phylogenetic and taxonomic delimitation of the cyanobacterial genusAphanotheceand description ofAnathece gen. nov.

The deterioration of Circular Mausoleum, Roman Necropolis of Carmona, Spain

Decolorization of textile dyes by cyanobacteria

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