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Molecular and environmental factors regulating seed longevity.

Julia Zinsmeister1, Olivier Leprince2, Julia Buitink2

  • 1Centre for Research in Agricultural Genomics (CRAG), Bellaterra, Barcelona, Spain.

The Biochemical Journal
|January 23, 2020
PubMed
Summary

Seed longevity is crucial for biodiversity preservation. Understanding seed lifespan requires considering storage conditions and factors like hormonal signaling, maternal effects, and cellular damage to improve seed banking strategies.

Keywords:
damageenvironmenthormonelongevityseedstorage

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Area of Science:

  • Plant biology
  • Seed science
  • Biodiversity conservation

Background:

  • Seed longevity is a critical trait for biodiversity preservation, especially facing climate change and population growth.
  • Understanding factors influencing seed lifespan is a long-standing challenge in plant biology.
  • Seed longevity is influenced by storage conditions, which dictate deteriorative reactions and cell death.

Purpose of the Study:

  • To review storage methods that accelerate seed deterioration.
  • To update on hormonal factors regulating seed longevity, including ABA signaling.
  • To discuss maternal and abiotic factors affecting seed lifespan.

Main Methods:

  • Review of literature on seed storage methods and their impact on deterioration.
  • Analysis of recent discoveries in hormonal regulation of seed longevity.
  • Examination of maternal and abiotic influences on seed viability.
  • Discussion of challenges in linking storage time to cellular damage.

Main Results:

  • Storage conditions significantly impact the rate and type of deteriorative reactions, affecting seed viability.
  • Hormonal pathways, particularly ABA signaling, play a role in regulating seed longevity.
  • Maternal and abiotic factors are crucial determinants of seed lifespan.
  • Cellular damage, including membrane permeability, lipid peroxidation, and RNA integrity, are key indicators of seed aging.

Conclusions:

  • Interpreting seed longevity data requires careful consideration of experimental storage conditions.
  • Further research into hormonal, maternal, and environmental factors is needed to enhance seed longevity.
  • Understanding cellular damage mechanisms is vital for improving long-term seed banking and biodiversity preservation efforts.