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afbeelding van Germán  Pérez

Germán Pérez MSc

PhD Student

Microbial Ecology


Research expertise
  • Biogeochemistry
  • Cyanobacteria isolation and cultivation
  • Microbiology and Molecular Biology
  • Stable isotope analysis

  • Page last updated: 14-09-2020

    My PhD project will deal with the study of the the diversity, activity, physiology and interactions of methanotrophs with phototrophs in freshwater ecosystems. Methane oxiding bacteria are a keystone in reducing methane emmisions either from natural or modified ecosystems. Methane, a greenhouse gas, is involved the global warming and it is predicted to increase its atmospheric concentration in years to come.

    Nowadays, freshwater systems are considered a relevant source of this gas. Current research is focused in understanding methane dynamics and the role of methanotrophs in these systems. The aim of my project is to understand these topics in the water column and sediments from drainage ditches, an artificial-warmed lake and rice paddies. My approach will include a suite of molecular techniques, exometabolomics and experiments on site or in vitro. 

     

    • CV
    • Groepen
    • Projecten
    • Publicaties (highlights)
    • Wetenschappelijke publicaties
    • Populair-wetenschappelijke publicaties

    Education

    2018 – 

    PhD candidate at Productive Ecology and Resource Conservation (WUR) - Department of Microbial Ecology (NIOO-KNAW). Sandwich PhD (Microbiology Laboratory. Agronomy Faculty (Montevideo, Uruguay). 

             "Abiotic and biotic factors that shape the community structure, physiology and activity of methanotrophs in freshwaters systems"

    2012

    Master in Microbiology. PEDECIBA- University of the Republic (Montevideo, Uruguay). Deparment of Microbiology. Biological Research Institute "Clemente Estable" - Limnology Section. Science Faculty.

              "Role of the bacterioplankton in the ammonium uptake in a coastal lagoon: Laguna de Rocha"

    2004

    Bachelor in Biochemistry. Science Faculty. University of the Republic (Montevideo, Uruguay). Biochemistry Laboratory. Agronomy Faculty. University of the Republic (Montevideo, Uruguay)

              "Effect of herbicides on cyanobacteria isolates from Uruguayan rice paddies"

    Position

    2010 – present

    Assistant in Microbiology Laboratory. Agronomy Faculty. University of the Republic.

     

    Internships

    2013

    Department of Microbial Ecology. NIOO-KNAW. Wageningen, The Netherlands

    2010

    Molecular Ecology Department. Max Plank Institute for Marine Microbiology. Bremen, Germany

    2008 and 2009

    Oceanographic Process Laboratory. Concepción University. Concepción, Chile.

     

    Grants

    2017

    PhD Sandwich Programme fellowship at WUR. National Agency for Research and Innovation (Uruguay).

    2013

    Project "Effect of cyanobacterial inoculation "Effect of cyanobacterial inoculation in methane emissions from rice paddies". PI. CSIC-University of the Republic. 

    2012

    Attendance "Latin American ISME Meeting" (Foz, Brazil). PEDECIBA

    2010

    Internship at Max Plank Institute. National Agency for Research and Innovation-PEDECIBA

    2009

    Internship at Concepción University. National Agency for Research and Innovation

    2009

    Master fellowship.National Agency for Research and Innovation

    2008

    Internship at Concepción University. Institut Pasteur, Montevideo. Uruguay

    Grants from different institutions  from Uruguay, Chile and USA for attending international courses

     

    Teaching experience

    2009 - Assistant in the Microbiology course (Degree in Agronomy). Faculty of Agronomy. University of the Republic (Montevideo, Uruguay)

     

     

     

    Bodelier Group
    Rationale Microbial communities are at the very basis of life on earth, catalyzing biogeochemical reactions driving global nutrient cycles. Thereby, microbes...Read more

    Nitrogen and phosphorus control of methane cycling in wetland sediments

    2019

    Bodelier, P. L. E., Pérez, G., Veraart, A. J., & Krause, S. (Accepted/In press). Methanotroph Ecology, Environmental distribution and functioning. In E. Y. Lee (Ed.), Microbiology Fundamentals and Biotechnological Applications Heidelberg: Springer

    2016

    Pérez, G., Doldán, S., Scavone, P., Borsani, O., Irisarri, P. Osmotic stress alters UV-based oxidative damage tolerance in a heterocyst forming cyanobacterium. Plant Biol. Biochem. 108: 231-240.

    Batani, G; Pérez, G., Martínez de la Escalera, G., Piccini, C., Fazia, S. Competition and protist predation are important regulators of riverine bacterial community composition and size distribution. J. Freshwater Ecol.31: 609-623.

    2014

    Pérez, G., Farías, L., Fernandez, C., Conde, D., Piccini, C. Incidence of phytoplankton and environmental conditions on the bacterial ammonium uptake in a subtropical coastal lagoon. J. Limnol. 73: 122-130.

    2012

    Pérez, G., Doldán, S., Borsani, O., Irisarri, P. Differential response to moderate UV-B irradiation of two heterocystous cyanobacteria isolated from a temperate ricefield. Adv. Microbiol. 2: 37- 47

    2010

    Fabre, A., Carballo, C., Hernández, E., Píriz, P., Bergamino, L., González, S., Pérez, G., León, J.L., Aubriot, L., Bonilla, S., Kruk, C. El nitrógeno y la relación zona eufótica/zona de mezcla explican la presencia de cianobacterias en pequeños lagos subtropicales, artificiales de Uruguay. Pan-American J. Aquatic Sci.5: 112 – 125.

      2019

    • Bodelier, P. L. E., Pérez, G., Veraart, A. J., & Krause, S. (2019). Methanotroph Ecology, Environmental distribution and functioning. In E. Y. Lee [Ed.], Methanotrophs: Microbiology Fundamentals and Biotechnological Applications (Microbiology Monographs MICROMONO; Vol. 32). Springer. https://doi.org/10.1007/978-3-030-23261-0_1

    Contact

    +31 (0)317 473 478

    Droevendaalsesteeg 10
    6708 PB Wageningen 
    +31 (0)317 47 34 00

    Postbus 50 
    6700 AB Wageningen

    G.Perez@nioo.knaw.nl

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