modeling plant associated nitrogen cycling bacteria - eric hester

Department of Microbiology Modeling plant associated nitrogen cycling bacteria Eric Hester Quantitative Laws Workshop– Flash Talk June 2016 Twitter - @ericericL

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Department of Microbiology

Modeling plant associated nitrogen cycling bacteria

Eric HesterQuantitative Laws Workshop– Flash TalkJune 2016

Twitter - @ericericL

Page 2: Modeling plant associated nitrogen cycling bacteria - Eric Hester

Department of Microbiology

Organic Matter

Radial Oxygen Loss

NH4+ NO3

General rules of a plant-based / rhizosphere system… can the rhizoshere composition be predicted?

Page 3: Modeling plant associated nitrogen cycling bacteria - Eric Hester

Department of Microbiology

Does the abundance of a species group respond to different environmental parameters (i.e., NO3

- or NH4+) ?

Figure from: Falk et al., 2010 Systematic and Applied Microbiology

(i.e., pH, NH4+, NO3-)

Page 4: Modeling plant associated nitrogen cycling bacteria - Eric Hester

Department of Microbiology

Link environment, community composition and function

Community 1

Community 1’ N2 flux = 15 uMol s-1

N2 flux = 10 uMol s-1

pH’

Environmental controls on community

structureOutput of community

∆pH ∆community ∆N2

Page 5: Modeling plant associated nitrogen cycling bacteria - Eric Hester

Department of Microbiology

Acknowledgements Dr. Sarah Faye HarpenslagerProf. Leon L Lamers

Prof. Mike JettenDr. Cornelia WelteDr. Claudia Lueke

ru.nl/microbiology

Department of Microbiology

Modeling plant associated nitrogen cycling bacteria

Eric HesterQuantitative Laws Workshop– Flash TalkJune 2016

Twitter - @ericericL

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