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POLLINATION REGULATION OF FLOWER DEVELOPMENT.

Sharman D. O'Neill1

  • 1Section of Plant Biology, Division of Biological Sciences, University of California, Davis, California 95616.

Annual Review of Plant Physiology and Plant Molecular Biology
|June 1, 1997
PubMed
Summary

Pollination triggers plant development for reproduction. This process involves hormonal signals, gene expression, and organ changes, ensuring successful fertilization and seed development.

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DESATURATION AND RELATED MODIFICATIONS OF FATTY ACIDS1.

Annual review of plant physiology and plant molecular biology·2004

Area of Science:

  • Plant reproductive biology
  • Developmental biology
  • Molecular signaling in plants

Background:

  • Pollination is crucial for sexual reproduction in higher plants.
  • It initiates a cascade of developmental events preparing the flower for fertilization.
  • These events include organ senescence, abscission, and reproductive structure development.

Purpose of the Study:

  • To elucidate the molecular mechanisms underlying pollination-regulated flower development.
  • To investigate the role of interorgan signaling in transmitting pollination cues.
  • To present the coordination of developmental processes, signaling, and gene regulation.

Main Methods:

  • Analysis of pollination-regulated developmental responses.
  • Investigation of interorgan signaling pathways.
  • Study of ethylene biosynthesis gene expression and hormone transport.

Main Results:

  • Pollination initiates a developmental syndrome preparing flowers for fertilization.
  • Interorgan signals amplify the pollination signal, involving ethylene biosynthesis and hormone transport.
  • Specific developmental events include pigmentation changes, organ senescence/abscission, and ovary/ovule development.

Conclusions:

  • Pollination orchestrates complex developmental pathways essential for plant reproduction.
  • Interorgan communication, particularly involving ethylene, is critical for coordinating these responses.
  • Understanding these mechanisms provides insights into plant sexual reproduction and development.

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