J
Jirí Nedoma
Researcher at Academy of Sciences of the Czech Republic
Publications - 21
Citations - 1415
Jirí Nedoma is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Bacterivore & Phytoplankton. The author has an hindex of 14, co-authored 21 publications receiving 1382 citations.
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Journal ArticleDOI
Changes in Bacterial Community Composition and Dynamics and Viral Mortality Rates Associated with Enhanced Flagellate Grazing in a Mesoeutrophic Reservoir
Karel Šimek,Karel Šimek,Jakob Pernthaler,Markus G. Weinbauer,Karel Hornák,John R. Dolan,Jirí Nedoma,Michal Mašín,Rudolf Amann +8 more
TL;DR: Viral concentrations and frequencies of infected cells were highly significantly correlated with grazing rates, suggesting that protistan grazing may stimulate viral activity.
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Morphological and compositional shifts in an experimental bacterial community influenced by protists with contrasting feeding modes.
Karel Šimek,Jaroslav Vrba,Jakob Pernthaler,Thomas Posch,Petr Hartman,Jirí Nedoma,Roland Psenner +6 more
TL;DR: Significant cultivation-dependent shifts of the bacterial community were observed toward (gamma)-Proteobacteria and members of the Cytophaga/Flavobacterium group, which demonstrated the rather poor agreement between cultivation-based approaches and oligonucleotide probing.
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Community structure, picoplankton grazing and zooplankton control of heterotrophic nanoflagellates in a eutrophic reservoir during the summer phytoplankton maximum
Karel Šimek,Petr Hartman,Jirí Nedoma,Jakob Pernthaler,D Springmann,Jaroslav Vrba,Roland Psenner +6 more
TL;DR: Investigating the role of protists, especially heterotrophic nanoflagellates (HNF), in microbial food webs during the summer phytoplankton bloom in the epilimnion and metalimnions of the eutrophic Rimov reservoir found no tight relationship between HNF and the concentration of bacteria and chlorophyll.
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Investigations on pelagic food webs in mountain lakes - aims and methods
Viera Straškrabová,Cristiana Callieri,Presentación Carrillo,Luis Cruz-Pizarro,Jan Fott,Petr Hartman,Miroslav Macek,Juan Manuel Medina-Sánchez,Jirí Nedoma,Karel Šimek +9 more
TL;DR: The main components of pelagic biomass were BAC, PHY and ZOOL+ZOOS, except for acidified lakes, where zooplankton was very low, and the percentage of extracellular production in the total primary production was considerable.
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Influence of Top-Down and Bottom-Up Manipulations on the R-BT065 Subcluster of β-Proteobacteria, an Abundant Group in Bacterioplankton of a Freshwater Reservoir
Karel Šimek,Karel Hornák,Karel Hornák,Jan Jezbera,Jan Jezbera,Michal Mašín,Jirí Nedoma,Josep M. Gasol,Michael Schauer +8 more
TL;DR: It was found that 10 to 50% of total bacteria were members of the phylogenetically small cluster of β-proteobacteria (targeted with the probe R-BT065), which showed the highest net growth rates and was highly correlated with bacterial bulk parameters and proportions of bacteria with high nucleic acid (HNA) content.