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Morphometry and growth of three .i.Synechococcus./i.-like picoplanktic cyanobacteria at different culture conditions

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    0087413 - BC 2008 RIV NL eng J - Journal Article
    Jezberová, Jitka - Komárková, J.
    Morphometry and growth of three Synechococcus-like picoplanktic cyanobacteria at different culture conditions.
    [Morfometrie a růst tří kmenů pikoplanktonních sinic příbuzných rodu Synechococcus při odlišných kultivačních podmínkách.]
    Hydrobiologia. Roč. 578, č. 1 (2007), s. 17-27. ISSN 0018-8158. E-ISSN 1573-5117.
    [Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP) /14./. Sapanca, 01.09.2005-11.09.2005]
    R&D Projects: GA AV ČR(CZ) IBS6017004; GA ČR(CZ) GA206/05/0007
    Grant - others:EU(XE) EVK2-1999-00213
    Institutional research plan: CEZ:AV0Z60170517
    Keywords : cell elongation * crossed gradients * cyanobacteria * Cyanobium * involution cells * light * morphometry * nutrients * Synechococcus * temperature
    Subject RIV: EE - Microbiology, Virology
    Impact factor: 1.201, year: 2007

    Three phycocyanin-rich strains of Synechococcus-like picoplanktic cyanobacteria, isolated from the plankton of Czech oligotrophic to eutrophic freshwater reservoirs, were investigated in crossed gradients of light and temperature and in combination with two different culture media (BG-11 and WC). The strains exhibited similar growth and reproduction patterns and displayed overlapping ranges of cell size (1.5 x 0.8 um) under standardized laboratory conditions (18 umol m–2 s–1; 20°C). However, strains behaviour differed in the crossed gradients. The strains differed in the degree of cell enlargement and cell division symmetry as well as in optimum temperature and light dependence.

    Tři kmeny rodu Synechococcus, izolované z planktonu Českých vodních nádrží, byly zkoumány na zkřížených gradientech světla a teploty v kombinaci se dvěmi kultivačními medii (BG11 a WC). Všechny kmeny vykazovaly podobný růst (velikost buněk 1.5 x 0.8 um) při standardních kultivačních podmínkách (18 umol m–2 s–1; 20°C). Chování kultur se však na gradientu fyzikalních faktorů lišilo. Kmeny vykazovaly odlišnou velikost a symetrii dělení.
    Permanent Link: http://hdl.handle.net/11104/0149263

     
     
Number of the records: 1  

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