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Steiner, F.A.* ; Wild, A.J.* ; Tyborski, N.* ; Tung, S.Y.* ; Koehler, T.* ; Buegger, F. ; Carminati, A.* ; Eder, B.* ; Groth, J.* ; Hesse, B.D.* ; Pausch, J.* ; Lüders, T.* ; Vahl, W.K.* ; Wolfrum, S.* ; Mueller, C.W.* ; Vidal, A.*

Rhizosheath drought responsiveness is variety-specific and a key component of belowground plant adaptation.

New Phytol. 242, 479-492 (2024)
Verlagsversion DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
Biophysicochemical rhizosheath properties play a vital role in plant drought adaptation. However, their integration into the framework of plant drought response is hampered by incomplete mechanistic understanding of their drought responsiveness and unknown linkage to intraspecific plant-soil drought reactions. Thirty-eight Zea mays varieties were grown under well-watered and drought conditions to assess the drought responsiveness of rhizosheath properties, such as soil aggregation, rhizosheath mass, net-rhizodeposition, and soil organic carbon distribution. Additionally, explanatory traits, including functional plant trait adaptations and changes in soil enzyme activities, were measured. Drought restricted soil structure formation in the rhizosheath and shifted plant-carbon from litter-derived organic matter in macroaggregates to microbially processed compounds in microaggregates. Variety-specific functional trait modifications determined variations in rhizosheath drought responsiveness. Drought responses of the plant-soil system ranged among varieties from maintaining plant-microbial interactions in the rhizosheath through accumulation of rhizodeposits, to preserving rhizosheath soil structure while increasing soil exploration through enhanced root elongation. Drought-induced alterations at the root-soil interface may hold crucial implications for ecosystem resilience in a changing climate. Our findings highlight that rhizosheath soil properties are an intrinsic component of plant drought response, emphasizing the need for a holistic concept of plant-soil systems in future research on plant drought adaptation.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Crop ; Maize ; Rhizodeposition ; Rhizosphere ; Soil Aggregation ; Soil Organic Carbon ; Soil Structure ; Water Scarcity; Root Mucilage; Soil Aggregation; R Package; Rhizosphere; Water; Carbon; Rhizodeposition; Consequences; Sensitivity; Exudation
Sprache englisch
Veröffentlichungsjahr 2024
HGF-Berichtsjahr 2024
ISSN (print) / ISBN 0028-646X
e-ISSN 1469-8137
Zeitschrift New Phytologist
Quellenangaben Band: 242, Heft: 2, Seiten: 479-492 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort 111 River St, Hoboken 07030-5774, Nj Usa
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Environmental Simulation (EUS)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504911-001
Förderungen Projekt DEAL
Statistical Consulting at TUM
German Bundesministerium fur Bildung und Forschung within the collaborative project 'Rhizo4Bio (Phase 1): RhizoTraits - Rhizospharen-Merkmale erhohen die Resilienz der Ertrage in modernen Anbausystemen, TP B'
DOI 10.1111/nph.19638
WOS ID 001174675700001
Scopus ID 85186583098
PubMed ID 38418430
Erfassungsdatum 2024-04-30
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