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  1. Article ; Online: Unraveling root and rhizosphere traits in temperate maize landraces and modern cultivars: Implications for soil resource acquisition and drought adaptation.

    Wild, Andreas J / Steiner, Franziska A / Kiene, Marvin / Tyborski, Nicolas / Tung, Shu-Yin / Koehler, Tina / Carminati, Andrea / Eder, Barbara / Groth, Jennifer / Vahl, Wouter K / Wolfrum, Sebastian / Lueders, Tillmann / Laforsch, Christian / Mueller, Carsten W / Vidal, Alix / Pausch, Johanna

    Plant, cell & environment

    2024  

    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 ... ...

    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.
    Language English
    Publishing date 2024-03-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 391893-2
    ISSN 1365-3040 ; 0140-7791
    ISSN (online) 1365-3040
    ISSN 0140-7791
    DOI 10.1111/pce.14898
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 80/729: Show issues

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  2. Article ; Online: 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

    The New phytologist

    2024  Volume 242, Issue 2, Page(s) 479–492

    Abstract: 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 ... ...

    Abstract 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.
    MeSH term(s) Ecosystem ; Soil/chemistry ; Droughts ; Carbon/analysis ; Plants ; Plant Roots/physiology
    Chemical Substances Soil ; Carbon (7440-44-0)
    Language English
    Publishing date 2024-02-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.19638
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  3. Article ; Online: 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

    New Phytologist

    2024  Volume 242, Issue 2

    Abstract: 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 ... ...

    Abstract 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.
    Keywords crop ; maize ; rhizodeposition ; rhizosphere ; soil aggregation ; soil organic carbon ; soil structure ; water scarcity
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

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  4. Article ; Online: Above and belowground traits impacting transpiration decline during soil drying in 48 maize (Zea mays) genotypes.

    Koehler, Tina / Schaum, Carolin / Tung, Shu-Yin / Steiner, Franziska / Tyborski, Nicolas / Wild, Andreas J / Akale, Asegidew / Pausch, Johanna / Lueders, Tillmann / Wolfrum, Sebastian / Mueller, Carsten W / Vidal, Alix / Vahl, Wouter K / Groth, Jennifer / Eder, Barbara / Ahmed, Mutez A / Carminati, Andrea

    Annals of botany

    2022  Volume 131, Issue 2, Page(s) 373–386

    Abstract: Background and aims: Stomatal regulation allows plants to promptly respond to water stress. However, our understanding of the impact of above and belowground hydraulic traits on stomatal regulation remains incomplete. The objective of this study was to ... ...

    Abstract Background and aims: Stomatal regulation allows plants to promptly respond to water stress. However, our understanding of the impact of above and belowground hydraulic traits on stomatal regulation remains incomplete. The objective of this study was to investigate how key plant hydraulic traits impact transpiration of maize during soil drying. We hypothesize that the stomatal response to soil drying is related to a loss in soil hydraulic conductivity at the root-soil interface, which in turn depends on plant hydraulic traits.
    Methods: We investigate the response of 48 contrasting maize (Zea mays) genotypes to soil drying, utilizing a novel phenotyping facility. In this context, we measure the relationship between leaf water potential, soil water potential, soil water content and transpiration, as well as root, rhizosphere and aboveground plant traits.
    Key results: Genotypes differed in their responsiveness to soil drying. The critical soil water potential at which plants started decreasing transpiration was related to a combination of above and belowground traits: genotypes with a higher maximum transpiration and plant hydraulic conductance as well as a smaller root and rhizosphere system closed stomata at less negative soil water potentials.
    Conclusions: Our results demonstrate the importance of belowground hydraulics for stomatal regulation and hence drought responsiveness during soil drying. Furthermore, this finding supports the hypothesis that stomata start to close when soil hydraulic conductivity drops at the root-soil interface.
    MeSH term(s) Zea mays/genetics ; Genotype ; Phenotype ; Desiccation ; Plant Leaves/genetics ; Plant Transpiration ; Soil ; Plant Stomata ; Plant Roots/genetics
    Chemical Substances Soil
    Language English
    Publishing date 2022-12-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1461328-1
    ISSN 1095-8290 ; 0305-7364
    ISSN (online) 1095-8290
    ISSN 0305-7364
    DOI 10.1093/aob/mcac147
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Above and belowground traits impacting transpiration decline during soil drying in 48 maize (Zea mays L.) genotypes

    Koehler, Tina / Schaum, Carolin / Tung, Shu-Yin / Steiner, Franziska / Tyborski, Nicolas / Wild, Andreas J. / Akale, Asegidew / Pausch, Johanna / Lueders, Tillmann / Wolfrum, Sebastian / Mueller, Carsten / Vidal, Alix / Vahl, Wouter / Groth, Jennifer / Eder, Barbara / Ahmed, Mutez / Carminati, Andrea

    Annals of Botany

    2023  Volume 131, Issue 2

    Abstract: Background and Aim: Stomatal regulation allows plants to promptly respond to water stress. However, our understanding of the impact of above and belowground hydraulic traits on stomatal regulation remains incomplete. The objective of this study was to ... ...

    Abstract Background and Aim: Stomatal regulation allows plants to promptly respond to water stress. However, our understanding of the impact of above and belowground hydraulic traits on stomatal regulation remains incomplete. The objective of this study was to investigate how key plant hydraulic traits impact transpiration of maize during soil drying. We hypothesize that stomatal response to soil drying is related to a loss in soil hydraulic conductivity at the root-soil interface, which in turn depends on plant hydraulic traits. Methods: We investigate the response of 48 contrasting maize (Zea mays L.) genotypes to soil drying, utilizing a novel phenotyping facility. In this context, we measure the relationship between leaf water potential, soil water potential, soil water content and transpiration, as well as root, rhizosphere and aboveground plant traits. Key Results: Genotypes differed in their responsiveness to soil drying. The critical soil water potential at which plants started decreasing transpiration was related to a combination of above- and belowground traits: genotypes with a higher maximum transpiration and plant hydraulic conductance as well as a smaller root and rhizosphere system closed stomata at less negative soil water potentials. Conclusions: Our results demonstrate the importance of belowground hydraulics for stomatal regulation and hence drought responsiveness during soil drying. Furthermore, this finding supports the hypothesis that stomata start to close when soil hydraulic conductivity drops at the root-soil interface.
    Keywords Life Science
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 1461328-1
    ISSN 1095-8290 ; 0305-7364
    ISSN (online) 1095-8290
    ISSN 0305-7364
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Sensitivity enhancement in the fluorometric determination of aliphatic amines using naphthalene-2,3-dicarboxaldehyde derivatization followed by vortex-assisted liquid-liquid microextraction.

    Wang, Chin-Yi / Tung, Shu-Yin / Lo, Yu-Shiu / Huang, Hsien-Lu / Ko, Chun-Han / Wu, Chien-Hou

    Talanta

    2016  Volume 152, Page(s) 475–481

    Abstract: A highly sensitive liquid chromatographic method was developed for the fluorometric determination of trace amounts of linear aliphatic primary amines. Prior to extraction, amines were derivatized with naphthalene-2,3-dicarboxaldehyde (NDA) in the ... ...

    Abstract A highly sensitive liquid chromatographic method was developed for the fluorometric determination of trace amounts of linear aliphatic primary amines. Prior to extraction, amines were derivatized with naphthalene-2,3-dicarboxaldehyde (NDA) in the presence of cyanide ion (CN) and extracted by vortex-assisted liquid-liquid microextraction (VALLME). The optimum conditions were as follows: derivatization reaction time for 5 min in 2.0 mL aqueous donor samples with 50 μM NDA/CN, and 10mM borate buffer at pH 9; vortex extraction time for 20s in the VALLME step with 50 μL of isooctane as the extractant phase; centrifugation for 1 min at 6000 rpm. Under the optimum conditions, the limits of detection (LOD) were between 0.01 and 0.04 nmol L(-1). The calibration curves showed good linearity in the range of 0.1-20 nmol L(-1). In comparison with previous work using o-phthalaldehyde/2-mercaptoethanol derivatization, the method has much more stable fluorescent derivatives, higher fluorescence intensities, and greater extraction efficiencies. The sensitivity enhancement factors (SEF) were between 2 and 70, which is in good agreement with the theoretical values calculated from partition coefficients in VALLME system.
    Language English
    Publishing date 2016-05-15
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2016.02.043
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