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@INPROCEEDINGS{Junker:856819,
author = {Junker, Laura and Genzel, Franziska and Büchsenschütz,
Jana and Thiele, Björn and Wormit, Alexandra and
Wiese-Klinkenberg, Anika},
title = {{T}argeted induction of plant secondary metabolism in
horticultural plants by controlled stress applications},
reportid = {FZJ-2018-06160},
year = {2018},
abstract = {Plants rely on morphological or biochemical mechanisms to
protect themselves under challenging environmental
conditions. This involves the accumulation of diverse
bioactive secondary metabolites. Such secondary metabolites
are recognized as valuable compounds for human health, as
ingredients of cosmetics or for further industrial purposes,
utilized after extraction of purified compounds or in plant
extracts. The interdisciplinary projects InducTomE and
TaReCa evaluate a novel process to make use of secondary
metabolites in residual plant biomass of horticultural
plants. In this process, stress treatments after the last
fruit harvest are applied to increase the amount of valuable
metabolites in the plant residuals. Thereby, the residual
biomass can be used for the extraction of industrially
relevant metabolites. In a pre-screen, young bell pepper and
tomato plants were exposed to various abiotic stress
treatments like water or nutrient deficiency, salt stress or
cold. We identified suitable stress treatments that induced
the accumulation of total phenolics, flavonoids and also
valuable target metabolites, like the flavonoid rutin and
the polyisoprenoid solanesol. A comparison of commercial
lines and a wild relative in these experiments revealed
differences in stress-induced metabolite accumulation and
biosynthesis gene expression indicating genetic variability
of responses of secondary metabolism to stress. According to
the results of the pre-screen, stress treatment protocols
for the induction of target metabolites will be developed
for use in commercial greenhouses. In addition, phenotyping
methods were applied to quantify plant stress responses and
to monitor the intensity of the treatments. This will also
help to develop easy-to-use tools to control the targeted
stress application in commercial greenhouses. The proposed
method for a targeted tailoring of the secondary metabolism
in horticultural residuals demonstrates the valorization of
underutilized by-products of horticultural food production.
Thereby, it has thus the potential to generate added value
and increase sustainability of the horticultural food
production.},
month = {Jun},
date = {2018-06-18},
organization = {Plant Biology Europe 2018, Kopenhagen
(Dänemark), 18 Jun 2018 - 21 Jun 2018},
subtyp = {Other},
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/856819},
}