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@ARTICLE{Nagel:877696,
author = {Nagel, Kerstin A. and Lenz, Henning and Kastenholz, Bernd
and Gilmer, Frank and Averesch, Andreas and Putz, Alexander
and Heinz, Kathrin and Fischbach, Andreas and Scharr, Hanno
and Fiorani, Fabio and Walter, Achim and Schurr, Ulrich},
title = {{T}he platform {G}row{S}creen-{A}gar enables identification
of phenotypic diversity in root and shoot growth traits of
agar grown plants},
journal = {Plant methods},
volume = {16},
number = {1},
issn = {1746-4811},
address = {London},
publisher = {BioMed Central},
reportid = {FZJ-2020-02406},
pages = {89},
year = {2020},
abstract = {BackgroundRoot system architecture and especially its
plasticity in acclimation to variable environments play a
crucial role in the ability of plants to explore and acquire
efficiently soil resources and ensure plant productivity.
Non-destructive measurement methods are indispensable to
quantify dynamic growth traits. For closing the phenotyping
gap, we have developed an automated phenotyping platform,
GrowScreen-Agar, for non-destructive characterization of
root and shoot traits of plants grown in transparent agar
medium.ResultsThe phenotyping system is capable to phenotype
root systems and correlate them to whole plant development
of up to 280 Arabidopsis plants within 15 min. The potential
of the platform has been demonstrated by quantifying
phenotypic differences within 78 Arabidopsis accessions from
the 1001 genomes project. The chosen concept
‘plant-to-sensor’ is based on transporting plants to the
imaging position, which allows for flexible experimental
size and design. As transporting causes mechanical
vibrations of plants, we have validated that daily imaging,
and consequently, moving plants has negligible influence on
plant development. Plants are cultivated in square Petri
dishes modified to allow the shoot to grow in the ambient
air while the roots grow inside the Petri dish filled with
agar. Because it is common practice in the scientific
community to grow Arabidopsis plants completely enclosed in
Petri dishes, we compared development of plants that had the
shoot inside with that of plants that had the shoot outside
the plate. Roots of plants grown completely inside the Petri
dish grew $58\%$ slower, produced a 1.8 times higher lateral
root density and showed an etiolated shoot whereas plants
whose shoot grew outside the plate formed a rosette. In
addition, the setup with the shoot growing outside the plate
offers the unique option to accurately measure both, leaf
and root traits, non-destructively, and treat roots and
shoots separately.ConclusionsBecause the GrowScreen-Agar
system can be moved from one growth chamber to another,
plants can be phenotyped under a wide range of environmental
conditions including future climate scenarios. In
combination with a measurement throughput enabling
phenotyping a large set of mutants or accessions, the
platform will contribute to the identification of key
genes.},
cin = {IBG-2},
ddc = {570},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {582 - Plant Science (POF3-582)},
pid = {G:(DE-HGF)POF3-582},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32582364},
UT = {WOS:000544856000001},
doi = {10.1186/s13007-020-00631-3},
url = {https://juser.fz-juelich.de/record/877696},
}