Polyphasic characterization of eight planktonic .i.Anabaena./i. strains (Cyanobacteria) with reference to the variability of 61 .i.Anabaena./i. populations observed in the field

0338527 - BC 2010 RIV NL eng J - Journal Article
Zapomělová, Eliška - Řeháková, Klára - Jezberová, Jitka - Komárková, Jaroslava
Polyphasic characterization of eight planktonic Anabaena strains (Cyanobacteria) with reference to the variability of 61 Anabaena populations observed in the field.
Hydrobiologia. Roč. 639, č. 1 (2010), s. 99-113. ISSN 0018-8158. E-ISSN 1573-5117.
[IAP /15./. Golan Heights, 23.11.2008-30.11.2008]
R&D Projects: GA AV ČR(CZ) KJB600960703; GA ČR(CZ) GA206/06/0462; GA AV ČR(CZ) IAA600050704
Institutional research plan: CEZ:AV0Z60170517
Keywords : Anabaena * taxonomy * morphology * classification * light * nitrogen * phosphorus
Subject RIV: EE - Microbiology, Virology
Impact factor: 1.964, year: 2010

The plasticity of morphological features used for morphospecies identification was studied under varied experimental conditions in eight planktonic Anabaena strains. Significant effects of the growth conditions, mostly P concentration, on vegetative cell dimensions were observed in seven strains. Significant effect of an environmental factor (P) on akinete morphology was found in only one strain. Experimentally assessed temperature and light growth optima were specific for each strain and were not consistent with the taxonomic affiliation. Morphologies of the strains studied were compared with the field morphologies of 61 Anabaena populations of eight morphospecies. The range of morphological variability of single strains under the experimental conditions spanned the total variability of the populations of relevant morphospecies observed in the field. Delimitations of the morphospecies were discussed in the light of partial 16S rRNA gene sequences of the studied strains.
Permanent Link: http://hdl.handle.net/11104/0182275