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Integrating Transcriptional, Metabolic, and Physiological Responses to Drought Stress in Ilex paraguariensis Roots

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  • معلومة اضافية
    • بيانات النشر:
      MDPI
    • Collection:
      CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
    • نبذة مختصرة :
      The appearance of water stress episodes triggers leaf abscission and decreases Ilex paraguariensis yield. To explore the mechanisms that allow it to overcome dehydration, we investigated how the root gene expression varied between water-stressed and non-stressed plants and how the modulation of gene expression was linked to metabolite composition and physiological status. After water deprivation, 5160 differentially expressed transcripts were obtained through RNA-seq. The functional enrichment of induced transcripts revealed significant transcriptional remodelling of stress-related perception, signalling, transcription, and metabolism. Simultaneously, the induction of the enzyme 9-cis-expoxycarotenoid dioxygenase (NCED) transcripts reflected the central role of the hormone abscisic acid in this response. Consequently, the total content of amino acids and soluble sugars increased, and that of starch decreased. Likewise, osmotic adjustment and radical growth were significantly promoted to preserve cell membranes and water uptake. This study provides a valuable resource for future research to understand the molecular adaptation of I. paraguariensis plants under drought conditions and facilitates the exploration of drought-tolerant candidate genes. ; Fil: Avico, Edgardo Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina ; Fil: Acevedo, Raúl Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina ; Fil: Duarte, María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet ...
    • File Description:
      application/pdf
    • ISSN:
      2223-7747
    • Relation:
      info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2223-7747/12/13/2404/htm; http://hdl.handle.net/11336/224341; Avico, Edgardo Hernán; Acevedo, Raúl Maximiliano; Duarte, María José; Rodrigues Salvador, Acacio; Nunes Nesi, Adriano; et al.; Integrating Transcriptional, Metabolic, and Physiological Responses to Drought Stress in Ilex paraguariensis Roots; MDPI; Plants; 12; 13; 6-2023; 1-24; CONICET Digital; CONICET
    • Rights:
      info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by/2.5/ar/
    • الرقم المعرف:
      edsbas.6F8F71C7