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Influence of 'Candidatus Phytoplasma prunorum' on primary and secondary metabolites of apricots

Author

Listed:
  • Gabriela Trempetić

    (Department of Fruit Science, Faculty of Horticulture, Mendel University in Brno, Brno, Czech Republic)

  • Eliška Zezulová

    (Department of Fruit Science, Faculty of Horticulture, Mendel University in Brno, Brno, Czech Republic)

  • Tomáš Nečas

    (Department of Fruit Science, Faculty of Horticulture, Mendel University in Brno, Brno, Czech Republic)

  • Petr Šnurkovič

    (Department of Post-Harvest Technology of Horticultural Products, Faculty of Horticulture, Mendel University in Brno, Brno, Czech Republic)

  • Tomáš Kiss

    (Department of Fruit Science, Faculty of Horticulture, Mendel University in Brno, Brno, Czech Republic)

Abstract

ˈCandidatus Phytoplasma prunorumˈ (ˈCa. P. prunorumˈ) is a causative agent of European stone fruit yellows (ESFY), an economically important decline disease of stone fruit species (Prunus spp.). The present research focused on the influence of ˈCa. P. prunorumˈ on primary and secondary metabolites in four apricot genotypes consisting of older trees (genotypes Nora, LEM 159) and younger trees (genotypes H74 and H177). The content of sugars (glucose, sucrose, fructose and sorbitol), total phenolic content (TPC), total flavonoid content (TFC), antioxidant capacity (AC), total soluble proteins (TSPC), mineral ions: potassium (K+), sodium (Na+), magnesium (Mg2+) and calcium (Ca2+), pigments: chlorophyll a, b and carotenoids, and phytohormones: auxin (IAA) were analysed in two time periods during the year in the leaves of infected and healthy trees. The results revealed that the presence of phytoplasma significantly decreased the content of pigments in both groups during summer sampling period. ESFY caused a decrease of TPC, TFC and auxin in H177 genotype. In older trees the phytoplasma decreased the TSPC and K+ content in both sampling points while the Ca2+ was decreased only in spring. The only increase caused by phytoplasma infection was observed in glucose content but only in the group of older plants.

Suggested Citation

  • Gabriela Trempetić & Eliška Zezulová & Tomáš Nečas & Petr Šnurkovič & Tomáš Kiss, . "Influence of 'Candidatus Phytoplasma prunorum' on primary and secondary metabolites of apricots," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 0.
    • Handle: RePEc:caa:jnlpps:v:preprint:id:128-2024-pps
    DOI: 10.17221/128/2024-PPS
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