Rhizosheath drought responsiveness is variety-specific and a key component of belowground plant adaptation
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Rhizosheath drought responsiveness is variety-specific and a key component of belowground plant adaptation. / Steiner, Franziska A.; Wild, Andreas J.; Tyborski, Nicolas; Tung, Shu-Yin; Koehler, Tina; Buegger, Franz; Carminati, Andrea; Eder, Barbara; Groth, Jennifer; Hesse, Benjamin D.; Pausch, Johanna; Lüders, Tillmann; Vahl, Wouter K.; Wolfrum, Sebastian; Mueller, Carsten W.; Vidal, Alix.
In: New Phytologist, Vol. 242, No. 2, 2024, p. 479–492.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Rhizosheath drought responsiveness is variety-specific and a key component of belowground plant adaptation
AU - Steiner, Franziska A.
AU - Wild, Andreas J.
AU - Tyborski, Nicolas
AU - Tung, Shu-Yin
AU - Koehler, Tina
AU - Buegger, Franz
AU - Carminati, Andrea
AU - Eder, Barbara
AU - Groth, Jennifer
AU - Hesse, Benjamin D.
AU - Pausch, Johanna
AU - Lüders, Tillmann
AU - Vahl, Wouter K.
AU - Wolfrum, Sebastian
AU - Mueller, Carsten W.
AU - Vidal, Alix
N1 - Publisher Copyright: © 2024 The Authors. New Phytologist © 2024 New Phytologist Foundation.
PY - 2024
Y1 - 2024
N2 - 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.
AB - 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.
KW - crop
KW - maize
KW - rhizodeposition
KW - rhizosphere
KW - soil aggregation
KW - soil organic carbon
KW - soil structure
KW - water scarcity
U2 - 10.1111/nph.19638
DO - 10.1111/nph.19638
M3 - Journal article
C2 - 38418430
AN - SCOPUS:85186583098
VL - 242
SP - 479
EP - 492
JO - New Phytologist
JF - New Phytologist
SN - 0028-646X
IS - 2
ER -
ID: 386303767