Role of root hair elongation in rhizosheath aggregation and in the carbon flow into the soil

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Pedro Paulo C. Teixeira
  • Svenja Trautmann
  • Franz Buegger
  • Vincent J.M.N.L. Felde
  • Johanna Pausch
  • Carsten W. Müller
  • Ingrid Kögel-Knabner

Organisationseinheiten

Externe Organisationen

  • Technische Universität München (TUM)
  • Universität Innsbruck
  • Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
  • Universität Bayreuth
  • Københavns Universitet
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)351-361
Seitenumfang11
FachzeitschriftBiology and fertility of soils
Jahrgang59
Ausgabenummer3
Frühes Online-Datum2 März 2023
PublikationsstatusVeröffentlicht - Apr. 2023

Abstract

One of the most prominent changes in the rhizospheric soil structure is associated with the formation of a strongly bound soil layer in the surroundings of the root, which is named rhizosheath. In this study, we investigated how root hair elongation, a ubiquitous root morphological trait, affect the stability of rhizosheath aggregates. Using 13CO2 pulse labeling, we tracked the fate of root-derived 13C inputted into the rhizosheath of two Zea mays L. genotypes with contrasting root hair elongation: a mutant with root hair defective elongation (rth3) and a corresponding wild type (WT). In addition, we also investigated the differences between two 13CO2 labeling approaches (single vs. multiple pulse labeling) in the distribution of 13C in the rhizosheath aggregates. We were able to demonstrate that the rhizosheath aggregate stability and the resulting aggregate size distribution follows the same mechanisms irrespective of the root hair elongation. This result reinforces the assumption that other soil properties are more decisive for the soil structure formation in the rhizosheath in comparison to root hair elongation. The majority of recently deposited root-derived C (57%) was found in the macroaggregates. Increasing the number of pulses (multiple pulse labeling approach) resulted in a higher 13C enrichment of the rhizosheath aggregates fractions in comparison to the application of a single pulse. While both labeling approaches resulted in a similar distribution of 13C in the rhizosheath aggregates, the higher enrichment given by multiple pulse labeling allowed the separation of significant differences between the genotypes in plant C allocation in the rhizosheath.

ASJC Scopus Sachgebiete

Zitieren

Role of root hair elongation in rhizosheath aggregation and in the carbon flow into the soil. / Teixeira, Pedro Paulo C.; Trautmann, Svenja; Buegger, Franz et al.
in: Biology and fertility of soils, Jahrgang 59, Nr. 3, 04.2023, S. 351-361.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Teixeira PPC, Trautmann S, Buegger F, Felde VJMNL, Pausch J, Müller CW et al. Role of root hair elongation in rhizosheath aggregation and in the carbon flow into the soil. Biology and fertility of soils. 2023 Apr;59(3):351-361. Epub 2023 Mär 2. doi: 10.1007/s00374-023-01708-6, 10.1007/s00374-023-01718-4
Teixeira, Pedro Paulo C. ; Trautmann, Svenja ; Buegger, Franz et al. / Role of root hair elongation in rhizosheath aggregation and in the carbon flow into the soil. in: Biology and fertility of soils. 2023 ; Jahrgang 59, Nr. 3. S. 351-361.
Download
@article{af6c558bf37543b8a64c85d603a19f60,
title = "Role of root hair elongation in rhizosheath aggregation and in the carbon flow into the soil",
abstract = "One of the most prominent changes in the rhizospheric soil structure is associated with the formation of a strongly bound soil layer in the surroundings of the root, which is named rhizosheath. In this study, we investigated how root hair elongation, a ubiquitous root morphological trait, affect the stability of rhizosheath aggregates. Using 13CO2 pulse labeling, we tracked the fate of root-derived 13C inputted into the rhizosheath of two Zea mays L. genotypes with contrasting root hair elongation: a mutant with root hair defective elongation (rth3) and a corresponding wild type (WT). In addition, we also investigated the differences between two 13CO2 labeling approaches (single vs. multiple pulse labeling) in the distribution of 13C in the rhizosheath aggregates. We were able to demonstrate that the rhizosheath aggregate stability and the resulting aggregate size distribution follows the same mechanisms irrespective of the root hair elongation. This result reinforces the assumption that other soil properties are more decisive for the soil structure formation in the rhizosheath in comparison to root hair elongation. The majority of recently deposited root-derived C (57%) was found in the macroaggregates. Increasing the number of pulses (multiple pulse labeling approach) resulted in a higher 13C enrichment of the rhizosheath aggregates fractions in comparison to the application of a single pulse. While both labeling approaches resulted in a similar distribution of 13C in the rhizosheath aggregates, the higher enrichment given by multiple pulse labeling allowed the separation of significant differences between the genotypes in plant C allocation in the rhizosheath.",
keywords = "C pulse labeling, Dry-crushing, Isotopes, Maize (Zea mays L.), Rhizosheath, Rhizosphere soil aggregates",
author = "Teixeira, {Pedro Paulo C.} and Svenja Trautmann and Franz Buegger and Felde, {Vincent J.M.N.L.} and Johanna Pausch and M{\"u}ller, {Carsten W.} and Ingrid K{\"o}gel-Knabner",
note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",
year = "2023",
month = apr,
doi = "10.1007/s00374-023-01708-6",
language = "English",
volume = "59",
pages = "351--361",
journal = "Biology and fertility of soils",
issn = "0178-2762",
publisher = "Springer Verlag",
number = "3",

}

Download

TY - JOUR

T1 - Role of root hair elongation in rhizosheath aggregation and in the carbon flow into the soil

AU - Teixeira, Pedro Paulo C.

AU - Trautmann, Svenja

AU - Buegger, Franz

AU - Felde, Vincent J.M.N.L.

AU - Pausch, Johanna

AU - Müller, Carsten W.

AU - Kögel-Knabner, Ingrid

N1 - Publisher Copyright: © 2023, The Author(s).

PY - 2023/4

Y1 - 2023/4

N2 - One of the most prominent changes in the rhizospheric soil structure is associated with the formation of a strongly bound soil layer in the surroundings of the root, which is named rhizosheath. In this study, we investigated how root hair elongation, a ubiquitous root morphological trait, affect the stability of rhizosheath aggregates. Using 13CO2 pulse labeling, we tracked the fate of root-derived 13C inputted into the rhizosheath of two Zea mays L. genotypes with contrasting root hair elongation: a mutant with root hair defective elongation (rth3) and a corresponding wild type (WT). In addition, we also investigated the differences between two 13CO2 labeling approaches (single vs. multiple pulse labeling) in the distribution of 13C in the rhizosheath aggregates. We were able to demonstrate that the rhizosheath aggregate stability and the resulting aggregate size distribution follows the same mechanisms irrespective of the root hair elongation. This result reinforces the assumption that other soil properties are more decisive for the soil structure formation in the rhizosheath in comparison to root hair elongation. The majority of recently deposited root-derived C (57%) was found in the macroaggregates. Increasing the number of pulses (multiple pulse labeling approach) resulted in a higher 13C enrichment of the rhizosheath aggregates fractions in comparison to the application of a single pulse. While both labeling approaches resulted in a similar distribution of 13C in the rhizosheath aggregates, the higher enrichment given by multiple pulse labeling allowed the separation of significant differences between the genotypes in plant C allocation in the rhizosheath.

AB - One of the most prominent changes in the rhizospheric soil structure is associated with the formation of a strongly bound soil layer in the surroundings of the root, which is named rhizosheath. In this study, we investigated how root hair elongation, a ubiquitous root morphological trait, affect the stability of rhizosheath aggregates. Using 13CO2 pulse labeling, we tracked the fate of root-derived 13C inputted into the rhizosheath of two Zea mays L. genotypes with contrasting root hair elongation: a mutant with root hair defective elongation (rth3) and a corresponding wild type (WT). In addition, we also investigated the differences between two 13CO2 labeling approaches (single vs. multiple pulse labeling) in the distribution of 13C in the rhizosheath aggregates. We were able to demonstrate that the rhizosheath aggregate stability and the resulting aggregate size distribution follows the same mechanisms irrespective of the root hair elongation. This result reinforces the assumption that other soil properties are more decisive for the soil structure formation in the rhizosheath in comparison to root hair elongation. The majority of recently deposited root-derived C (57%) was found in the macroaggregates. Increasing the number of pulses (multiple pulse labeling approach) resulted in a higher 13C enrichment of the rhizosheath aggregates fractions in comparison to the application of a single pulse. While both labeling approaches resulted in a similar distribution of 13C in the rhizosheath aggregates, the higher enrichment given by multiple pulse labeling allowed the separation of significant differences between the genotypes in plant C allocation in the rhizosheath.

KW - C pulse labeling

KW - Dry-crushing

KW - Isotopes

KW - Maize (Zea mays L.)

KW - Rhizosheath

KW - Rhizosphere soil aggregates

UR - http://www.scopus.com/inward/record.url?scp=85149051656&partnerID=8YFLogxK

U2 - 10.1007/s00374-023-01708-6

DO - 10.1007/s00374-023-01708-6

M3 - Article

AN - SCOPUS:85149051656

VL - 59

SP - 351

EP - 361

JO - Biology and fertility of soils

JF - Biology and fertility of soils

SN - 0178-2762

IS - 3

ER -

Von denselben Autoren