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Plyhauka L. L.: Belaruskaja mova u polikuľturnym rehijone (paudnjova - uschodňaja terytoryja Litouskaj Respubliki)
Title Plyhauka L. L.: Belaruskaja mova u polikuľturnym rehijone (paudnjova - uschodňaja terytoryja Litouskaj Respubliki) Author info V. M. Liashuk Author Liashuk Viktoria 1963- (100%) UMBFF17 - Katedra slovanských jazykov
Source document Slavica Slovaca. Roč. 52, č. 1 (2017), s. 95-96. - Bratislava : Slovenská akadémia vied, 2017 Review document Belaruskaja mova u polikuľturnym rehijone / L. L. Plyhauka. - Minsk : BDPU, 2015 Keywords multikultúrne regióny bieloruština - bieloruský jazyk - Belarusian language Headings Geogr. Litva Language Belarusian Country Slovak Republic systematics 81 Public work category EDI No. of Archival Copy 41736 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title An intact plastid genome is essential for the survival of colorless Euglena longa but not Euglena gracilis Author info Lucia Hadariová ... [et al.] Author Hadariová Lucia (30%)
Co-authors Vesteg Matej 1982- (30%) UMBFP09 - Katedra biológie a environmentálnych štúdií
Birčák Erik (5%)
Schwartzbach Steven D. (5%)
Krajčovič Juraj (30%)
Source document Current Genetics : Microorganisms and Organelles. Vol. 63, no. 2 (2017), pp. 331-341. - Heidelberg : Springer-Verlag, 2017 Keywords antibiotiká - antibiotics chloroplastová DNA - chloroplast DNA degradation Language English Country United States of America systematics 53 Annotation Euglena gracilis growth with antibacterial agents leads to bleaching, permanent plastid gene loss. Colorless Euglena (Astasia) longa resembles a bleached E. gracilis. To evaluate the role of bleaching in E. longa evolution, the effect of streptomycin, a plastid protein synthesis inhibitor, and ofloxacin, a plastid DNA gyrase inhibitor, on E. gracilis and E. longa growth and plastid DNA content were compared. E. gracilis growth was unaffected by streptomycin and ofloxacin. Quantitative PCR analyses revealed a time dependent loss of plastid genes in E. gracilis demonstrating that bleaching agents produce plastid gene deletions without affecting cell growth. Streptomycin and ofloxacin inhibited E. longa growth indicating that it requires plastid genes to survive. This suggests that evolutionary divergence of E. longa from E. gracilis was triggered by the loss of a cytoplasmic metabolic activity also occurring in the plastid. Plastid metabolism has become obligatory for E. longa cell growth. A process termed "intermittent bleaching", short term exposure to subsaturating concentrations of reversible bleaching agents followed by growth in the absence of a bleaching agent, is proposed as the molecular mechanism for E. longa plastid genome reduction. Various non-photosynthetic lineages could have independently arisen from their photosynthetic ancestors via a similar process.
Number of the records: 1