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Search for "SLADKÁ O.": 2 articles found.
BRILLOVÁ D., SLADKÁ O. (1989): Transmission of virus-like particles from the infected into the healthy strains of Cercospora beticola Sacc. Česká Mykologie 43(3): 155-165 (published: 21st August, 1989)
abstract
Transmission of virus-like particles from the infected hypovirulent strain of Cercospora beticola into virulent healthy strains was observed. The joint cultivation of the light poorly sporulating hypovirulent strain C61 containing virus-like particles and dsRNA with dark virulent intensively sporulating C26, C34 and C42 strains without virus-like particles and dsRNA resulted in the rich anastomosis connection between coloured thicker hyphae of virulent strains and thinner hyaline hyphae of the hypovirulent strain. Transmission of virus-like particles and dsRNA via anastomosis from the hypovirulent strain into virulent ones has been proved biochemically by the UV spectra and polyacrylamide gel electrophoresis. Besides, the originally healthy virulent strains have converted and gained the properties of the hypovirulent strain, thus demonstrating not only the transfer of virus agent but also its infectivity.
BRILLOVÁ D., SLADKÁ O., PETERKOVÁ I. (1988): Respiration of the wild strain and the mutants of Cercospora beticola Sacc. Česká Mykologie 42(2): 97-104 (published: 10th May, 1988)
abstract
Light non-pathogenic mutants of Cercospora beticola exhibit a markedly increased respiration compared to pathogenic dark-grey wild strains as well as to non-pathogenic mutants having light aerial mycelium and dark substrate. The increased respiration rate is discussed with respect to high potassium content in their mycelium and also to donor-acceptor properties of quinones in the respiration process. In the wild strains, the effect of viral infection of hyphae on increased respiration of strain C-61 was analyzed.
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