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Biochemical changes in Pinus pinea seeds during storing.

M Fernández-García de Castro, C J Martínez-Honduvilla

    Revista Espanola De Fisiologia
    |March 1, 1982
    PubMed
    Summary

    Pinus pinea seed storage impacts germination and biochemicals. Early storage aids maturation, but prolonged storage leads to seed aging, reducing germination and protein synthesis.

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    Area of Science:

    • * Botany
    • * Plant Physiology
    • * Seed Science

    Background:

    • * Pinus pinea seeds undergo maturation and potential aging during storage.
    • * Understanding biochemical changes is crucial for seed viability.
    • * Storage conditions (time and temperature) influence seed quality.

    Purpose of the Study:

    • * To investigate the effects of storage duration and temperature on Pinus pinea seed germination.
    • * To analyze changes in germination inhibitors and biochemical components (proteins, nucleic acids).
    • * To determine the optimal storage period for maintaining seed viability.

    Main Methods:

    • * Freshly harvested Pinus pinea seeds were stored for up to 24 months.
    • * Seeds were stored at two different temperatures: room temperature and 4 degrees C.
    • * Germination rate, germination inhibitor content, and biochemical differences in soluble proteins and nucleic acids were assessed.

    Main Results:

    • * Storage for 6-12 months appeared to induce maturation or after-ripening in Pinus pinea seeds.
    • * Longer storage periods (beyond 12 months) initiated seed aging processes.
    • * Aging seeds showed reduced germination rates and altered biochemical profiles, including decreased protein and nucleic acid levels during germination.

    Conclusions:

    • * Pinus pinea seed maturation can occur during the initial months of storage.
    • * Extended storage promotes seed aging, negatively impacting germination and biochemical potential.
    • * Optimal storage duration is critical to balance maturation benefits and prevent aging-induced degradation.

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