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@INPROCEEDINGS{RoblesAguilar:256123,
      author       = {Robles Aguilar, Ana Alejandra and Grunert, O. and Boon, N.
                      and Temperton, Vicky and Blossfeld, Stephan and
                      Hernandez-Sanabria, E. and Reheul, D. and Jablonowski,
                      Nicolai David},
      title        = {{M}icrobial community structure in the rhizosphere of
                      narrow-leafed lupin and tomato as related to nitrogen form
                      provided},
      reportid     = {FZJ-2015-06132},
      year         = {2015},
      abstract     = {Ammonia-oxidizing bacteria (AOB) and nitrite oxidizing
                      bacteria (NOB) are the most important organisms responsible
                      for ammonia and nitrite oxidation in agricultural ecosystems
                      and growing media. Ammonia and nitrite oxidation are
                      critical steps in the soil nitrogen cycle and can be
                      affected by the application of mineral fertilizers or
                      organic fertilizers. The microbial community and structure
                      associated with the growing medium will also be influenced
                      by the plant species identity. The functionality of the
                      microbial community has a major impact on the nutrient
                      turnover and will finally influence plant performance. In
                      our study, we used two different plant species from
                      different functional groups. Lupin, a legume that makes a
                      nitrogen-fixing symbiosis with the microbial community and
                      tomato, both with the availability to exudate nutrient
                      mobilizing acids. We studied plant performance in rhizotrons
                      (a phentotyping system for imaging roots), including an
                      optical method (planar optodes) for non-invasive,
                      quantitative and high-resolution imaging of pH dynamics in
                      the rhizosphere and adjacent medium. The horticultural
                      growing medium was supplemented with organic-derived
                      nitrogen or ammonium derived from struvite. The possible
                      differences in the root structure between treatments is
                      compared with the total root length. Destructive growing
                      medium sampling and high throughput sequencing analysis of
                      the bacterial abundance of the communities present in the
                      rhizosphere and the bulk soil will be used in order to study
                      the growing medium-associated microbial community structure,
                      and this will be related to pH changes in the rhizosphere
                      and the bulk soil. Our hypothesis is that the growing
                      medium-associated microbial community structure changes
                      depending on the nitrogen form provided, the plant species
                      used, the rhizosphere and bulk soil. We expect a higher
                      abundance of bacteria in the treatment with organic
                      fertilizer and a higher abundance of AOB and NOB in the
                      rhizosphere in comparison to the bulk soil.},
      month         = {Jun},
      date          = {2015-06-21},
      organization  = {Rhizosphere 4, Maastricht
                       (Netherlands), 21 Jun 2015 - 25 Jun
                       2015},
      subtyp        = {After Call},
      cin          = {IBG-2},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/256123},
}