1 - 4 of 4
Number of results to display per page
Search Results
2. Ecological characteristics and polyphasic taxonomic classification of stable pigment-types of the genus Chroococcus (Cyanobacteria)
- Creator:
- Kováčik, Ľubomír, Jezberová, Jitka, Komárková, Jaroslava, Kopecký, Jiří, and Komárek, Jiří
- Type:
- article and TEXT
- Subject:
- chromatic adaptation, Chroococcus, cyanobacteria, ecology, phylogeny, pigment content, pigment mutants, Slovakia, taxonomy, and ultrastructure
- Language:
- English
- Description:
- Two differently coloured strains of the genus Chroococcus were isolated from a cyanobacterial assemblage collected from the stony littoral of a backwater of the Danube River in southern Slovakia. When grown after isolation, both subcultures were similar morphologically and their growth parameters did not differ substantially, but their pigment content (PC: PE and carotenoid ratios), details in their morphology during their life cycles and slime production were different. Identical and different characters of both morphotypes remained stable during cultivation on both agarized and liquid media, even when the cultivation parameters were changed. Both of the subcultures were studied using electron microscopy and almost their complete 16S rRNA genes were sequenced, which showed that in terms of their genetic relationship there was a 96.4% sequence similarity and certain taxonomic interspecific differences between both subcultures were confirmed. The various chromatic modifications recorded in cyanobacteria and their ecological consequences are discussed. The results yielded further data on the changes that occur during the cyanobacterial differentiation processes and their genetic stabilization.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/
3. Lyrická opera Eva Josefa Bohuslava Foerstera, Julius Zeyer a Louis Gallet
- Creator:
- Kopecký, Jiří
- Type:
- article, model:article, and TEXT
- Language:
- Czech
- Description:
- Josef Bohuslav Foerster’s Eva, the most frequently-performed of his operas, was characterized by the composer himself and by earlier musicological literature as a purely Czech work linked to the tradition of Smetana. However, in 2004 Cyril ·álek subjected Eva to a stylistic analysis and demonstrated its international character. While composing this second opera of his Foerster was intensively occupied with contemporary French works, and in his letters he responded animatedly to the debate unleashed by Louis Gallet, the librettist of Massenet’s opera Thaïs. It seems that – apart from other more-or-less probable models – clarification of fundamental dramatic issues in Eva was influenced especially by the dramatic character of French opéra lyrique.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4. Recent local geodynamics in the central part of the Stołowe Mts
- Creator:
- Cacoń, Stefan, Otakar Švábenský, Kapłon, Jan, Kontny, Bernard, Josef Weigel, and Kopecký, Jiří
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Geologie. Meteorologie. Klimatologie, geodynamika, GPS (navigační systém), gravimetrie, geodynamics, GPS (navigation system), gravimetry, Góry Stołowe (Polsko : pohoří), Góry Stołowe Mountains (Poland), horizontal velocities, 7, and 551
- Language:
- English
- Description:
- The paper presents results of epoch satellite GPS and gravimetric measurements performed on the geodynamic network in central part of the Stołowe Mts. between 1993 and 2009. The research results show significant changes of gravity on most of the points and significant horizontal movement of one point in the central part of the area. The results confirm present day activity of the zone where faults Polický, Bělský and Czerwona Woda Fault Zone exists. In addition, they correspond with the studies of seismic activity in this part of the Sudety Mts., Stefan Cacoń, Jan Kapłon, Bernard Kontny, Josef Weigel, Otakar Švábenský and Jiři Kopecký., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public