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Unraveling root and rhizosphere traits in temperate maize landraces and modern cultivars : Implications for soil resource acquisition and drought adaptation

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007955
URN to cite this document: urn:nbn:de:bvb:703-epub-7955-6

Title data

Wild, Andreas J. ; Steiner, Franziska A. ; Kiene, Marvin ; Tyborski, Nicolas ; Tung, Shu‐Yin ; Köhler, Tina ; Carminati, Andrea ; Eder, Barbara ; Groth, Jennifer ; Vahl, Wouter K. ; Wolfrum, Sebastian ; Lüders, Tillmann ; Laforsch, Christian ; Mueller, Carsten W. ; Vidal, Alix ; Pausch, Johanna:
Unraveling root and rhizosphere traits in temperate maize landraces and modern cultivars : Implications for soil resource acquisition and drought adaptation.
In: Plant, Cell & Environment. Vol. 47 (2024) Issue 7 . - pp. 2524-2539.
ISSN 1365-3040
DOI der Verlagsversion: https://doi.org/10.1111/pce.14898

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Project information

Project title:
Project's official title
Project's id
Rhizosphere traits enhancing yield resilience to drought in modern cropping systems
RhizoTraits − 031B0908

Project financing: Bundesministerium für Bildung und Forschung

Abstract

A holistic understanding of plant strategies to acquire soil resources is pivotal in achieving sustainable food security. However, we lack knowledge about variety-specific root and rhizosphere traits for resource acquisition, their plasticity and adaptation to drought. We conducted a greenhouse experiment to phenotype root and rhizosphere traits (mean root diameter [Root D], specific root length [SRL], root tissue density, root nitrogen content, specific rhizosheath mass [SRM], arbuscular mycorrhizal fungi [AMF] colonization) of 16 landraces and 22 modern cultivars of temperate maize (Zea mays L.). Our results demonstrate that landraces and modern cultivars diverge in their root and rhizosphere traits. Although landraces follow a ‘do-it-yourself’ strategy with high SRLs, modern cultivars exhibit an ‘outsourcing’ strategy with increased mean Root Ds and a tendency towards increased root colonization by AMF. We further identified that SRM indicates an ‘outsourcing’ strategy. Additionally, landraces were more drought-responsive compared to modern cultivars based on multitrait response indices. We suggest that breeding leads to distinct resource acquisition strategies between temperate maize varieties. Future breeding efforts should increasingly target root and rhizosphere economics, with SRM serving as a valuable proxy for identifying varieties employing an outsourcing resource acquisition strategy.

Further data

Item Type: Article in a journal
Keywords: arbuscular mycorrhizal fungi; Index for Adaptive Responses; phenotypic plasticity; rhizosheath; root diameter; root economics space; specific root length
DDC Subjects: 500 Science
500 Science > 550 Earth sciences, geology
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Ecological Microbiology > Chair Ecological Microbiology - Univ.-Prof. Dr. Tillmann Lüders
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professor Agroecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professor Agroecology > Professor Agroecology - Juniorprof. Dr. Johanna Pausch
Research Institutions > Central research institutes > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Ecological Microbiology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Central research institutes
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-7955-6
Date Deposited: 04 Oct 2024 07:17
Last Modified: 04 Oct 2024 07:17
URI: https://epub.uni-bayreuth.de/id/eprint/7955

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