Rainer Kurmayer

Summary

Affiliation: Austrian Academy of Sciences
Country: Austria

Publications

  1. pmc Nontoxic strains of cyanobacteria are the result of major gene deletion events induced by a transposable element
    Guntram Christiansen
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, Mondsee, Austria
    Mol Biol Evol 25:1695-704. 2008
  2. ncbi request reprint Diversity of microcystin genes within a population of the toxic cyanobacterium Microcystis spp. in Lake Wannsee (Berlin, Germany)
    Rainer Kurmayer
    Federal Environmental Agency, Corrensplatz 1, 14195 Berlin, Germany
    Microb Ecol 43:107-18. 2002
  3. pmc Spatial divergence in the proportions of genes encoding toxic peptide synthesis among populations of the cyanobacterium Planktothrix in European lakes
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, Mondsee, Austria
    FEMS Microbiol Lett 317:127-37. 2011
  4. pmc Diversity of microcystin genotypes among populations of the filamentous cyanobacteria Planktothrix rubescens and Planktothrix agardhii
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, 5310 Mondsee, Austria
    Mol Ecol 15:3849-61. 2006
  5. ncbi request reprint Genetic identification of microcystin ecotypes in toxic cyanobacteria of the genus Planktothrix
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, A 5310 Mondsee, Austria
    Microbiology 151:1525-33. 2005
  6. pmc The abundance of microcystin-producing genotypes correlates positively with colony size in Microcystis sp. and determines its microcystin net production in Lake Wannsee
    Rainer Kurmayer
    Federal Environmental Agency, 14195 Berlin, Germany
    Appl Environ Microbiol 69:787-95. 2003
  7. ncbi request reprint Abundance of active and inactive microcystin genotypes in populations of the toxic cyanobacterium Planktothrix spp
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, A 5310 Mondsee, Austria
    Environ Microbiol 6:831-41. 2004
  8. pmc Application of real-time PCR for quantification of microcystin genotypes in a population of the toxic cyanobacterium Microcystis sp
    Rainer Kurmayer
    Institute for Limnology, Austrian Academy of Sciences, A 5310 Mondsee, Austria
    Appl Environ Microbiol 69:6723-30. 2003
  9. pmc Distribution and abundance of nontoxic mutants of cyanobacteria in lakes of the Alps
    Veronika Ostermaier
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, 5310 Mondsee, Austria
    Microb Ecol 58:323-33. 2009
  10. pmc Transposons inactivate biosynthesis of the nonribosomal peptide microcystin in naturally occurring Planktothrix spp
    Guntram Christiansen
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, 5310 Mondsee, Austria
    Appl Environ Microbiol 72:117-23. 2006

Collaborators

Detail Information

Publications21

  1. pmc Nontoxic strains of cyanobacteria are the result of major gene deletion events induced by a transposable element
    Guntram Christiansen
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, Mondsee, Austria
    Mol Biol Evol 25:1695-704. 2008
    ....
  2. ncbi request reprint Diversity of microcystin genes within a population of the toxic cyanobacterium Microcystis spp. in Lake Wannsee (Berlin, Germany)
    Rainer Kurmayer
    Federal Environmental Agency, Corrensplatz 1, 14195 Berlin, Germany
    Microb Ecol 43:107-18. 2002
    ....
  3. pmc Spatial divergence in the proportions of genes encoding toxic peptide synthesis among populations of the cyanobacterium Planktothrix in European lakes
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, Mondsee, Austria
    FEMS Microbiol Lett 317:127-37. 2011
    ..These results emphasize stable population-specific differences in mcyB, aerB, and apnC proportions that are independent from seasonal influences...
  4. pmc Diversity of microcystin genotypes among populations of the filamentous cyanobacteria Planktothrix rubescens and Planktothrix agardhii
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, 5310 Mondsee, Austria
    Mol Ecol 15:3849-61. 2006
    ..It is concluded that spatial isolation might favour the genetic divergence of microcystin synthesis in Planktothrix spp...
  5. ncbi request reprint Genetic identification of microcystin ecotypes in toxic cyanobacteria of the genus Planktothrix
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, A 5310 Mondsee, Austria
    Microbiology 151:1525-33. 2005
    ....
  6. pmc The abundance of microcystin-producing genotypes correlates positively with colony size in Microcystis sp. and determines its microcystin net production in Lake Wannsee
    Rainer Kurmayer
    Federal Environmental Agency, 14195 Berlin, Germany
    Appl Environ Microbiol 69:787-95. 2003
    ....
  7. ncbi request reprint Abundance of active and inactive microcystin genotypes in populations of the toxic cyanobacterium Planktothrix spp
    Rainer Kurmayer
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, A 5310 Mondsee, Austria
    Environ Microbiol 6:831-41. 2004
    ..rubescens typically contain mcy genes whereas P. agardhii have a patchy distribution of mcy genes. In both species microcystin producers co-occur with non-microcystin producers due to the absence/inactivation of mcy genes...
  8. pmc Application of real-time PCR for quantification of microcystin genotypes in a population of the toxic cyanobacterium Microcystis sp
    Rainer Kurmayer
    Institute for Limnology, Austrian Academy of Sciences, A 5310 Mondsee, Austria
    Appl Environ Microbiol 69:6723-30. 2003
    ..It is concluded that the mean proportion of microcystin genotypes is stable from winter to summer and that Microcystis cell numbers could be used to infer the mean proportion of mcy genotypes in Lake Wannsee...
  9. pmc Distribution and abundance of nontoxic mutants of cyanobacteria in lakes of the Alps
    Veronika Ostermaier
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, 5310 Mondsee, Austria
    Microb Ecol 58:323-33. 2009
    ..The results demonstrate that the occurrence of inactive mcy genotypes is linearly related to the population density, and selective sweeps of nontoxic mutants did not occur during the transition from prebloom to bloom conditions...
  10. pmc Transposons inactivate biosynthesis of the nonribosomal peptide microcystin in naturally occurring Planktothrix spp
    Guntram Christiansen
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, 5310 Mondsee, Austria
    Appl Environ Microbiol 72:117-23. 2006
    ..The results demonstrate for the first time that different mutations resulting in inactivation of MC synthesis do occur frequently and make up a stable proportion of the mcy gene pool in Planktothrix populations over several years...
  11. ncbi request reprint Distribution of microcystin-producing and non-microcystin-producing Microcystis sp. in European freshwater bodies: detection of microcystins and microcystin genes in individual colonies
    Lorena Via-Ordorika
    Federal Environmental Agency, Berlin, Germany
    Syst Appl Microbiol 27:592-602. 2004
    ..It is concluded that the analysis of morphospecies is indicative for microcystin production, although the quantitative analysis of microcystin concentrations in water remains indispensable for hazard control...
  12. pmc Interlaboratory comparison of Taq Nuclease Assays for the quantification of the toxic cyanobacteria Microcystis sp
    Eva Schober
    Institute for Limnology, Austrian Academy of Sciences, 5310 Mondsee, Austria
    J Microbiol Methods 69:122-8. 2007
    ..It is concluded that the TNA is able to provide quantitative estimates on mcyB genotype numbers that are reproducible between research groups and is useful to follow variation in mcyB genotype proportion occurring within weeks to months...
  13. pmc Occurrence of microcystin-producing cyanobacteria in Ugandan freshwater habitats
    William Okello
    Institute for Limnology, Austrian Academy of Sciences, Mondseestrasse 9, 5310 Mondsee, Austria
    Environ Toxicol 25:367-80. 2010
    ..1-96.7% similarity to the Microcystis aeruginosa strain PCC7806). Accordingly, only the mcyE primers, which are specific for Microcystis, revealed PCR products. We concluded that Microcystis is the major MC-producer in Ugandan freshwater...
  14. pmc Genetic variation of adenylation domains of the anabaenopeptin synthesis operon and evolution of substrate promiscuity
    Guntram Christiansen
    Austrian Academy of Sciences, Institute for Limnology, Mondsee, Austria
    J Bacteriol 193:3822-31. 2011
    ..Surprisingly, positive selection appears to affect only three codons within the apnA A₁ gene, suggesting that this remarkable promiscuity has evolved from point mutations only...
  15. pmc Spatial isolation favours the divergence in microcystin net production by Microcystis in Ugandan freshwater lakes
    William Okello
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, Mondsee, Austria
    Water Res 44:2803-14. 2010
    ..It is concluded that Microcystis populations differ consistently and independently of the season in mcyB genotype proportion between lakes resulting in population-specific differences in the average MC content per cell...
  16. pmc Application of real-time PCR to estimate toxin production by the cyanobacterium Planktothrix sp
    Veronika Ostermaier
    Institute for Limnology, Austrian Academy of Sciences, Mondseestrasse 9, Mondsee, Austria
    Appl Environ Microbiol 76:3495-502. 2010
    ..We conclude that estimating the abundance of specific microcystin genotypes by quantitative real-time PCR is useful for predicting the concentration of microcystin variants in water...
  17. pmc Stability of toxin gene proportion in red-pigmented populations of the cyanobacterium Planktothrix during 29 years of re-oligotrophication of Lake Zürich
    Veronika Ostermaier
    University of Innsbruck, Research Institute for Limnology, Mondseestrasse 9, 5310 Mondsee, Austria
    BMC Biol 10:100. 2012
    ..In general, cyanobacterial blooms are favored by eutrophication. Very little is known about the stability of the toxic/nontoxic genotype composition during trophic change...
  18. pmc Isolation and structure determination of two microcystins and sequence comparison of the McyABC adenylation domains in Planktothrix species
    Guntram Christiansen
    Austrian Academy of Sciences, Institute for Limnology, Mondseestrasse 9, A 5310 Mondsee, Austria
    J Nat Prod 71:1881-6. 2008
    ....
  19. pmc Genetic variability of microcystin biosynthesis genes in Planktothrix as elucidated from samples preserved by heat desiccation during three decades
    Veronika Ostermaier
    Research Institute for Limnology, University of Innsbruck, Mondsee, Austria
    PLoS ONE 8:e80177. 2013
    ..8kbp deletion of this gene region. The increase of this mcyA (Dhb) gene deletion mutant has been minor so far, however, and likely did not affect the overall toxicity of the population. ..
  20. ncbi request reprint Biosynthesis and structure of aeruginoside 126A and 126B, cyanobacterial peptide glycosides bearing a 2-carboxy-6-hydroxyoctahydroindole moiety
    Keishi Ishida
    Institute of Biology, Humboldt University Berlin, 10115 Berlin, Germany
    Chem Biol 14:565-76. 2007
    ..In silico analyses of the aeruginoside biosynthetic genes aerA-aerI as well as additional mutagenesis and feeding studies allowed the prediction of enzymatic steps leading to the formation of aeruginosides and the unusual Choi moiety...
  21. ncbi request reprint Toxic cyanobacterial blooms in reservoirs under a semiarid mediterranean climate: the magnification of a problem
    Luigi Naselli-Flores
    Department of Botanical Sciences, University of Palermo, Via Archirafi, 38, I 90123 Palermo, Italy
    Environ Toxicol 22:399-404. 2007
    ....