Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen

The worldwide demand for vegetable oils is rising. Oilseed rape (<i>Brassica napus</i>) diversifies cereal dominated crop rotations but requires important nitrogen input. Yet, the root organ is offering an untapped opportunity to improve the nitrogen capture in soil. This study evaluates...

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Main Authors: László Kupcsik, Claudia Chiodi, Taraka Ramji Moturu, Hugues De Gernier, Loïc Haelterman, Julien Louvieaux, Pascal Tillard, Craig J. Sturrock, Malcolm Bennett, Philippe Nacry, Christian Hermans
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Nitrogen
Subjects:
Online Access:https://www.mdpi.com/2504-3129/2/4/33
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author László Kupcsik
Claudia Chiodi
Taraka Ramji Moturu
Hugues De Gernier
Loïc Haelterman
Julien Louvieaux
Pascal Tillard
Craig J. Sturrock
Malcolm Bennett
Philippe Nacry
Christian Hermans
author_facet László Kupcsik
Claudia Chiodi
Taraka Ramji Moturu
Hugues De Gernier
Loïc Haelterman
Julien Louvieaux
Pascal Tillard
Craig J. Sturrock
Malcolm Bennett
Philippe Nacry
Christian Hermans
author_sort László Kupcsik
collection DOAJ
description The worldwide demand for vegetable oils is rising. Oilseed rape (<i>Brassica napus</i>) diversifies cereal dominated crop rotations but requires important nitrogen input. Yet, the root organ is offering an untapped opportunity to improve the nitrogen capture in soil. This study evaluates three culture systems in controlled environment, to observe root morphology and to identify root attributes for superior biomass production and nitrogen use. The phenotypic diversity in a panel of 55 modern winter oilseed rape cultivars was screened in response to two divergent nitrate supplies. Upon in vitro and hydroponic cultures, a large variability for root morphologies was observed. Root biomass and morphological traits positively correlated with shoot biomass or leaf area. The activities of high-affinity nitrate transport systems correlated negatively with the leaf area, while the combined high- and low-affinity systems positively with the total root length. The X-ray computed tomography permitted to visualize the root system in pipes filled with soil. The in vitro root phenotype at germination stage was indicative of lateral root deployment in soil-grown plants. This study highlights great genetic potential in oilseed rape, which could be manipulated to optimize crop root characteristics and nitrogen capture with substantial implications for agricultural production.
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spelling doaj.art-11c49004e6fa48ab8fac43743599a4592023-11-23T09:53:53ZengMDPI AGNitrogen2504-31292021-12-012449150510.3390/nitrogen2040033Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of NitrogenLászló Kupcsik0Claudia Chiodi1Taraka Ramji Moturu2Hugues De Gernier3Loïc Haelterman4Julien Louvieaux5Pascal Tillard6Craig J. Sturrock7Malcolm Bennett8Philippe Nacry9Christian Hermans10Crop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumCrop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumCrop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumCrop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumCrop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumCrop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumBiochemistry and Plant Molecular Physiology, UMR 5004 CNRS/INRAE/SupAgro-M/UM2, Integrative Biology Institute for Plants, Place Viala, CEDEX 1, 34060 Montpellier, FranceSutton Bonington Campus, School of Biosciences, University of Nottingham, Leicestershire LE12 5RD, UKSutton Bonington Campus, School of Biosciences, University of Nottingham, Leicestershire LE12 5RD, UKBiochemistry and Plant Molecular Physiology, UMR 5004 CNRS/INRAE/SupAgro-M/UM2, Integrative Biology Institute for Plants, Place Viala, CEDEX 1, 34060 Montpellier, FranceCrop Production and Biostimulation Laboratory, Interfaculty School of Bioengineers, Université libre de Bruxelles, Campus Plaine CP 245, Bd du Triomphe, 1050 Brussels, BelgiumThe worldwide demand for vegetable oils is rising. Oilseed rape (<i>Brassica napus</i>) diversifies cereal dominated crop rotations but requires important nitrogen input. Yet, the root organ is offering an untapped opportunity to improve the nitrogen capture in soil. This study evaluates three culture systems in controlled environment, to observe root morphology and to identify root attributes for superior biomass production and nitrogen use. The phenotypic diversity in a panel of 55 modern winter oilseed rape cultivars was screened in response to two divergent nitrate supplies. Upon in vitro and hydroponic cultures, a large variability for root morphologies was observed. Root biomass and morphological traits positively correlated with shoot biomass or leaf area. The activities of high-affinity nitrate transport systems correlated negatively with the leaf area, while the combined high- and low-affinity systems positively with the total root length. The X-ray computed tomography permitted to visualize the root system in pipes filled with soil. The in vitro root phenotype at germination stage was indicative of lateral root deployment in soil-grown plants. This study highlights great genetic potential in oilseed rape, which could be manipulated to optimize crop root characteristics and nitrogen capture with substantial implications for agricultural production.https://www.mdpi.com/2504-3129/2/4/33<i>Brassica napus</i>natural variationnitrogen nutritionroot system architecture
spellingShingle László Kupcsik
Claudia Chiodi
Taraka Ramji Moturu
Hugues De Gernier
Loïc Haelterman
Julien Louvieaux
Pascal Tillard
Craig J. Sturrock
Malcolm Bennett
Philippe Nacry
Christian Hermans
Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
Nitrogen
<i>Brassica napus</i>
natural variation
nitrogen nutrition
root system architecture
title Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
title_full Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
title_fullStr Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
title_full_unstemmed Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
title_short Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
title_sort oilseed rape cultivars show diversity of root morphologies with the potential for better capture of nitrogen
topic <i>Brassica napus</i>
natural variation
nitrogen nutrition
root system architecture
url https://www.mdpi.com/2504-3129/2/4/33
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