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@ARTICLE{Landl:901989,
author = {Landl, Magdalena and Haupenthal, Adrian and Leitner, Daniel
and Kroener, Eva and Vetterlein, Doris and Bol, Roland and
Vereecken, Harry and Vanderborght, Jan and Schnepf, Andrea},
title = {{S}imulating rhizodeposition patterns around growing and
exuding root systems},
journal = {In silico plants},
volume = {3},
number = {2},
issn = {2517-5025},
address = {[Oxford]},
publisher = {Oxford University Press},
reportid = {FZJ-2021-03958},
pages = {diab028},
year = {2021},
abstract = {In this study, we developed a novel model approach to
compute the spatio-temporal distribution patterns of
rhizodeposits around growing root systems in three
dimensions. This model approach allows us to study the
evolution of rhizodeposition patterns around complex
three-dimensional root systems. Root systems were generated
using the root architecture model CPlantBox. The
concentration of rhizodeposits at a given location in the
soil domain was computed analytically. To simulate the
spread of rhizodeposits in the soil, we considered
rhizodeposit release from the roots, rhizodeposit diffusion
into the soil, rhizodeposit sorption to soil particles and
rhizodeposit degradation by microorganisms. To demonstrate
the capabilities of our new model approach, we performed
simulations for the two example rhizodeposits mucilage and
citrate and the example root system Vicia faba. The
rhizodeposition model was parameterized using values from
the literature. Our simulations showed that the rhizosphere
soil volume with rhizodeposit concentrations above a defined
threshold value (i.e. the rhizodeposit hotspot volume)
exhibited a maximum at intermediate root growth rates. Root
branching allowed the rhizospheres of individual roots to
overlap, resulting in a greater volume of rhizodeposit
hotspots. This was particularly important in the case of
citrate, where overlap of rhizodeposition zones accounted
for more than half of the total rhizodeposit hotspot
volumes. Coupling a root architecture model with a
rhizodeposition model allowed us to get a better
understanding of the influence of root architecture as well
as rhizodeposit properties on the evolution of the
spatio-temporal distribution patterns of rhizodeposits
around growing root systems.},
cin = {IBG-3},
ddc = {004},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {2173 - Agro-biogeosystems: controls, feedbacks and impact
(POF4-217)},
pid = {G:(DE-HGF)POF4-2173},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000745293200011},
doi = {10.1093/insilicoplants/diab028},
url = {https://juser.fz-juelich.de/record/901989},
}