Modern classification of cyanobacteria

Komárek, Jiří

doi:10.1002/9781118402238.ch2

Cited by 29 publications

(46 citation statements)

References 93 publications

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“…However, There are cases where some morphological and ecological different species. show a high percentage of DNA similarity, whereas other populations with similar morphology appear in different clades when their 16S rRNA gene sequences are compared (the so-called "cryptic species", Komárek 2005Komárek , 2006Komárek , 2010.…”

Section: Introductionmentioning

confidence: 99%

Morphological and Molecular Characterization of Brasilonema roberti-lamii (Cyanophyceae, Nostocales, Scytonemataceae), from Central Mexico

Rodarte¹,

Becerra-Absalón

Montejano

et al. 2014

Phytotaxa

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This paper is a contribution to the morphological and molecular characterization of the cyanobacterium Brasilonema robertilamii from populations found in Central Mexico. The general growth form and the morphological, morphometric and ecological characteristics of the populations studied clearly correspond to those described for Brasilonema roberti-lamii (basionym: Tolypothrix roberti-lamii) from the French Antilles. Based on molecular data from DNA sequencing of the16S rRNA gene and the IGS of the cpcB-cpcA phycocyanin operon (cpcBA-IGS), we propose that the populations that we studied are closely related to those of other Brasilonema species, including B. octagenarum UFV-OR1, UFV-E1 and HA4187-MV1-p1F, Brasilonema sennae CENA 114, B. tolantongensis, B. terrestre CENA 116, B. angustatum HA4187-MV1-B2+p1F and HA4187-MV1-B2+p1H and B. bromeliae SPC951. Our findings support the transference of Tolypothrix roberti-lamii, which was made based exclusively on morphological criteria, to Brasilonema. The use of molecular analyses in addition to traditional morphological and ecological criteria, known as polyphasic approach, is a good alternative to describe taxa of cyanobacteria, mainly at the genus and species levels.

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Section: Introductionmentioning

confidence: 99%

Morphological and Molecular Characterization of Brasilonema roberti-lamii (Cyanophyceae, Nostocales, Scytonemataceae), from Central Mexico

Rodarte¹,

Becerra-Absalón

Montejano

et al. 2014

Phytotaxa

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“…The major innovation was the Three Pillar structure of the EU, namely the European Community pillar consisting of traditional European community law, the Common Foreign and Security Policy pillar, 22 and the most important for our analysis-the Justice and Home Affairs pillar. 23,24 As far as the Justice and Home Affairs pillar (hereinafter 'Third Pillar') is concerned, pursuant to the Treaty on EU, the judicial co-operation in criminal matters was mentioned as one of the areas as matters of common interest. 25 For the first time in the European integration, the judicial co-operation had formal intergovernmental 26 nature.…”

Section: Third Pillar Of the European Unionmentioning

confidence: 99%

“…31 Although the EU Member States did not want to break off pieces of criminal law from national sovereignty and transfer them into the Community law, they 21 Jánošíková (2004), p. 23. 22 Articles J-J.11 of the Treaty on EU-'Provisions on a Common Foreign and Security Policy'-Title V. 23 Articles K-K.9 of the Treaty on EU-'Provisions on Co-operation in the Fields of Justice and Home Affairs'-Title VI. 24 The Three Pillar structure of the EU was abandoned on 1st December 2009 following the entry into force of the Treaty of Lisbon (the third revision of the Treaty on EU).…”

Section: Third Pillar Of the European Unionmentioning

confidence: 99%

“…At the origin of the case there was a reference for a preliminary ruling 22 concerning the interpretation of the Framework Decision 2001/220/JHA on the standing of victims in criminal proceedings. 23 The question was referred by the criminal court of Florence (Italy) in the proceedings against Maria Pupino, a nursery school teacher charged with injuring her under-aged pupils. The question posed to the Court of Justice was whether this act, which remained unimplemented in Italian law, affected the interpretation to be given to provisions of the Italian Code of Criminal Procedure on when special procedures could be used for particularly vulnerable victims giving evidence.…”

Section: Legal Analysismentioning

confidence: 99%

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European Arrest Warrant

Klimek¹

2015

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“…Biochemical characteristics and their stability are important criteria in taxonomic analyses of cyanobacteria (Komárek, 2005). Pigment composition is useful for the classification of cyanobacteria.…”

Section: Introductionmentioning

confidence: 99%

Chemosystematic evaluation of the genus Scytonema (Cyanobacteria) based on occurrence of phycobiliproteins, scytonemin, carotenoids and mycosporine-like amino acid compounds

Asencio

Hoffmann²

2013

European Journal of Phycology

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Forty unicyanobacterial cultures of the genus Scytonema, isolated from terrestrial habitats worldwide (Europe, America, Southeast Asia, Australia and Africa), were investigated. The pigments detected were four phycobiliproteins (allophycocyanin, phycocyanin, phycoerythrocyanin and phycoerythrin), scytonemin, six carotenoids (β-carotene, canthaxanthin, echinenone, isozeaxanthin, myxoxanthophyll and zeaxanthin) and14 different mycosporines, including shinorine, stanierine and asterina-330. Cluster analyses indicated three groups among the isolates which were not related to their biogeographical origins. The first was composed of isolates with allophycocyanin and phycocyanin; β-carotene, canthaxanthin, echinenone and zeaxanthin; and scytonemin but no MAAs. These isolates had disc-shaped or elongated cells with blue-green cytoplasm and slight meristematic zones. The second group comprised isolates containing allophycocyanin, phycocyanin and phycoerythrin; β-carotene, canthaxanthin, echinenone, isozeaxanthin and myxoxanthophyll; and also both MAAs and scytonemin. Here, the cells were elongated with brown-violet cytoplasm and marked meristematic zones. The third group comprised isolates with allophycocyanin, phycocyanin and phycoerythrocyanin; β-carotene, canthaxanthin and echinenone; shinorine-type MAA, but no scytonemin. The cells were elongate with blue-green cytoplasm and marked terminal meristematic zones, and the organisms grew in dimly lit places. Multivariate statistical analyses were performed to identify compounds with especial value for taxonomy. Allophycocyanin, phycocyanin, phycoerythrin and phycoerythrocyanin; scytonemin; isozeaxanthin, myxoxanthophyll and zeaxanthin; and shinorine, asterina-330 and mycosporine 13, showed statistically significant variations among the three groups of Scytonema unicyanobacterial cultures. These results, and the fact that the biomarkers studied were conserved, even during longterm cultivation, suggest that these compounds can be used as chemotaxonomic markers in taxonomic and phylogenetic studies of Scytonema.

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Modern classification of cyanobacteria

Cited by 29 publications

References 93 publications

Morphological and Molecular Characterization of Brasilonema roberti-lamii (Cyanophyceae, Nostocales, Scytonemataceae), from Central Mexico

Morphological and Molecular Characterization of Brasilonema roberti-lamii (Cyanophyceae, Nostocales, Scytonemataceae), from Central Mexico

European Arrest Warrant

Chemosystematic evaluation of the genus Scytonema (Cyanobacteria) based on occurrence of phycobiliproteins, scytonemin, carotenoids and mycosporine-like amino acid compounds

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