RNDr. Jitka Jezberová, Ph.D.

Job Position: Research Scientist - Department of Aquatic Microbial Ecology (AME)

Contact details

Phone: 387775834
E-mail: j.jezberova@email.cz
Room: 218NB


Research interest
- autotrophic picoplankton such as Cyanobium, Synechococcus, Cyanodictyon, Aphanothece and Aphanocapsa (ecology, cultivation and isolation, ecophysiological studies, phylogenetic characterisation and differenciation)
- isolation and cultivation of freshwater bacteria and cyanobacteria
- microbial food web; interactions cyanobacteria or bacteria vs. protozoa and zooplankton
- phylogenetic studies of Betaproteobacteria (Polynucleobacter and Limnohabitans)
Research strategy
Research on cyanobacterial and bacterial ecology in combination of field (including mesocosms experiments with dialyses bags) and laboratory work (light / temperature / nutrient gradient experiments, grazing experiments, competition experiments) as well as of classical microbiological (isolation and cultivation) and modern molecular techniques (such as quantitative PCR, sequencing and genome analyses), epifluorescence microscopy and flow cytometry.

Curriculum vitae

1996  - High School Diploma
1999  - Bachelor Diploma at the Faculty of Biological Sciences, University of South Bohemia (Bachelor thesis (in Czech): Chemical conditions and phototrophic microflora in tree holes of the ‚Blansky les` reserve; Supervisor: RNDr. J. Lukavský, CSc.)
2002  - Master Diploma at the Faculty of Biological Sciences, University of South Bohemia (Master thesis (in English): Seasonal dynamics of autotrophic picoplankton in two canyon-shaped reservoirs and detailed study of three picocyanobacterial strains; Supervisor: RNDr. J. Komárková, CSc.)
2002-2006 - Postgradual studies at the Faculty of Biological Sciences, University of South Bohemia; (PhD  - aims: Genotypes and morphotypes of freshwater picoplanktic cyanobacteria and their responses to various environmental conditions, polyphasic approach; Supervisor: RNDr. J. Komárková, CSc.)
2007-2008  - Postdoc - Institute for Limnology of the Austrian Academy of Sciences - Austria, Mondsee: „Genetic and Ecological Diversity of a Narrow Phylogenetic Group of Abundant Freshwater Bacteria” (FWF project of Dr. M.W.Hahn)

International cooperation
2003    Lancaster University - United Kingdom, Departement of Biology (Dr. J. Parry) - picocyanobacteria vs. protozoa interactions; Sokrates/Erasmus program
2004     University of Helsinky - Finland; Department of Applied Chemistry and Microbiology - Division of Microbiology (Dr. Kaarina Sivonen)
2004      CNR - Italy, Institute for Ecosystem Study - Section of Firenze (Dr. Stefano Ventura)
2005     Institute for Limnology of the Austrian Academy of Sciences - Austria, Mondsee (Prof. Thomas Weisse)
2006     CNR - Italy, Institute for Ecosystem Study - Section of Firenze (Dr. Stefano Ventura)
2007    Mexico - Iztacala UNAM (Dr. M.Macek)  - „Picocyanobacterial composition and behaviour in vulcanic lakes Alchichica and Atexcac”
since 2008 long time cooperation with the Research Institute for Limnology, Mondsee, University of Innsbruck (Dr. M.W.Hahn)

Total found: 30 records
Šimek K., Grujčić V., Nedoma J., Jezberová J., Šorf M., Matoušů A., Pechar L., Posch T., Bruni E.P., Vrba J. (2019) Microbial food webs in hypertrophic fishponds: Omnivorous ciliate taxa are major protistan bacterivores Limnology and Oceanography 64 : 2295–2309.
DOI: 10.1002/lno.11260
Šimek K., Grujčić V., Hahn M., Horňák K., Jezberová J., Kasalický V., Nedoma J., Salcher M., Shabarova T. (2018) Bacterial prey food characteristics modulate community growth response of freshwater bacterivorous flagellates Limnology and Oceanography 63 : 484–502.
DOI: 10.1002/lno.10759
Vrba J., Benedová Z., Jezberová J., Matoušů A., Musil M., Nedoma J., Pechar L., Potužák J., Řeháková K., Šimek K., Šorf M., Zemanová J. (2018) Nevstoupíš dvakrát do téhož rybníka – předběžná zpráva o stavu dnešních hypertrofních rybničních ekosystémů [You cannot step into the same fishpond twice – A preliminary report on the current status of hypertrophic fishpond ecosystems] Vodní hospodářství 68 (8) : 1-5.
Vrba J., Benedová Z., Jezberová J., Matoušů A., Musil M., Nedoma J., Pechar L., Potužák J., Řeháková K., Šimek K., Šorf M., Zemanová J. (2018) Nevstoupíš dvakrát do téhož rybníka aneb vývoj rybničních ekosystémů od Šusty k hypertrofii [You cannot step into the same fishpond twice - an evolution of fishpond ecosystems to hypertrophy] Sborník konference Rybníky 2018 2-11.
Hoetzinger M., Schmidt J., Jezberová J., Koll U., Hahn M. (2017) Microdiversification of a Pelagic Polynucleobacter Species Is Mainly Driven by Acquisition of Genomic Islands from a Partially Interspecific Gene Pool Applied and Environmental Microbiology 83 : e02266–16 .
DOI: 10.1128/AEM.02266-16
Jezberová J., Jezbera J., Znachor P., Nedoma J., Kasalický V., Šimek K. (2017) The Limnohabitans genus harbors generalistic and opportunistic subtypes: evidence from spatiotemporal succession in a canyon-shaped reservoir Applied and Environmental Microbiology 83 : e01530-17.
DOI: 10.1128/AEM.01530-17
Hahn M., Jezberová J., Koll U., Saueressig-Beck T., Schmidt J. (2016) Complete ecological isolation and cryptic diversity in Polynucleobacter bacteria not resolved by 16S rRNA gene sequences. ISME Journal 10 : 1642–1655..
DOI: 10.1038/ismej.2015.237
Komárek J., Hindák F., Jezberová J. (2016) Review of the cyanobacterial genus Eucapsis. Nova Hedwigia 103 : 441–456.
DOI: 10.1127/nova_hedwigia/2016/0363
Hahn M., Koll U., Jezberová J., Camacho A. (2015) Global phylogeography of pelagic Polynucleobacter bacteria: Restricted geographic distribution of subgroups, isolation by distance, and influence of climate. Environmental Microbiology 17 : 829–840.
DOI: 10.1111/1462-2920.12532
Jezbera J., Jezberová J., Kasalický V., Šimek K., Hahn M. (2013) Patterns of Limnohabitans microdiversity across a large set of freshwater habitats as revealed by reverse line blot hybridization. PLOS ONE 8 : e58527..
DOI: DOI: 10.1371/journal.pone.0058527
Jezberová J., Jezbera J., Hahn M. (2013) Insights into variability of actinorhodopsin genes of the LG1 cluster in two different freshwater habitats. PLOS ONE 8 : e68542..
DOI: DOI: 10.1371/journal.pone.0068542
Hahn M., Scheuerl T., Jezberová J., Koll U., Jezbera J., Šimek K., Vannini C., Petroni G., Wu Q. (2012) The passive yet successful way of planktonic life: genomic and experimental analysis of the ecology of a free-living Polynucleobaster population. PLOS ONE 7 : e32772..
DOI: DOI: 10.1371/journal.pone.0032772
Jezbera J., Jezberová J., Koll U., Horňák K., Šimek K., Hahn M. (2012) Contrasting trends in distribution of four major planktonic betaproteobacterial groups along a pH gradient of epilimnia of 72 freshwater habitats. FEMS Microbiology Ecology 81 : 467–479..
DOI: DOI: 10.1111/j.1574-6941.2012.01372.x
Kasalický V., Jezbera J., Hahn M., Jezberová J., Hejzlar J., Šimek K. (2012) Ecology of planktonic freshwater bacteria of the Limnohabitans genus (Betaproteobacteria). In: Zborník príspevkov XVI. Konferencia SLS a ČLS Od molekúl po ekosystémy, Jasná, June 25–29, 2012, ISBN 978–80–971056–0–0: pp. 59–62.
Jezbera J., Jezberová J., Brandt U., Hahn M. (2011) Ubiquity of Polynucleobacter necessarius subspecies asymbioticus results from ecological diversification. Environmental Microbiology 13 : 922-931..
Komárek J., Kaštovský J., Jezberová J. (2011) Phylogenetic and taxonomic delimitation of the cyanobacterial genus Aphanothece and description of Anathece gen. nov. European Journal of Phycology 46 : 315-326..
DOI: DOI: 10.1080/09670262.2011.606373
Kováčik L., Jezberová J., Komárková J., Komárek J., Kopecký J. (2011) Ecological characteristics and polyphasic taxonomic classification of stable pigment-types of the genus Chroococcus (Cyanobacteria). Preslia 83 : 145-166..
Zapomělová E., Hroužek P., Řezanka T., Jezberová J., Řeháková K., Hisem D., Komárková J. (2011) Polyphasic characterization of Dolichospermum spp. and Sphaerospermopsis spp. (Nostocales, cyanobacteria): morphology, 16S rRNA gene sequences and fatty acid and secondary metabolite profiles. Journal of Phycology 47 : 1152-1163..
DOI: DOI: 10.1111/j.1529-8817.2011.01034.x
Hahn M., Kasalický V., Jezbera J., Brandt U., Jezberová J., Šimek K. (2010) Limnohabitans curvus gen. nov. sp. nov., a planktonic bacterium isolated from freshwater lake. International Journal of Systematic and Evolutionary Microbiology 60 : 1358–1365..
DOI: DOI: 10.1099/ijs.0.013292-0
Jezberová J., Jezbera J., Brandt U., Lindström E., Langenheder S., Hahn M. (2010) Ubiquity of Polynucleobacter necessarius ssp. asymbioticus in lentic freshwater habitats of a heterogenous 2000 km2 area. Environmental Microbiology 12 : 658–669..
DOI: DOI: 10.1111/j.1462-2920.2010.02396.x

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Biology Centre CAS
Institute of Hydrobiology
Na Sádkách 702/7
370 05 České Budějovice

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