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Related Experiment Videos

Late seed maturation: drying without dying.

Olivier Leprince1, Anthoni Pellizzaro1, Souha Berriri1

  • 1IRHS, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 Quasav, 42 rue George Morel, 49071 Beaucouzé, France.

Journal of Experimental Botany
|April 10, 2017
PubMed
Summary

Seed maturation

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Area of Science:

  • Plant Science
  • Seed Biology
  • Developmental Biology

Background:

  • Seed maturation involves acquiring traits like germination, desiccation tolerance, dormancy, and longevity.
  • The late maturation phase, crucial for seed longevity and establishment, is often overlooked.
  • Harvest maturity significantly impacts seed longevity and seedling establishment in seed production.

Purpose of the Study:

  • To review major events and regulatory pathways in seed longevity acquisition.
  • To focus on key maturity indicators like chlorophyll degradation, oligosaccharides, LEA proteins, and HSPs.
  • To explore the role of biotic defense molecules and plasticity in seed longevity.

Main Methods:

  • Literature review of seed maturation and longevity research.
  • Analysis of molecular and physiological markers associated with seed maturity.
  • Discussion of regulatory pathways and contributing factors to seed longevity.

Main Results:

  • Seed longevity increases significantly post-seed filling, linked to desiccation and quiescence.
  • Key maturity indicators (chlorophyll degradation, raffinose, LEA, HSPs) correlate with longevity.
  • Evidence suggests biotic defense molecules and plasticity play roles in seed longevity.

Conclusions:

  • The late maturation phase is critical for seed longevity and requires further research.
  • Understanding these markers and pathways can optimize seed quality and crop establishment.
  • Plasticity offers a framework for comprehending the acquisition of seed longevity.
Keywords:
ABALEA proteinschlorophylldesiccation tolerancelongevityraffinose family oligosaccharides.

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