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Updated: May 15, 2026

Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay
10:49

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First off the mark: early seed germination.

Karin Weitbrecht1, Kerstin Müller, Gerhard Leubner-Metzger

  • 1Botany/Plant Physiology, Institute for Biology II, Faculty of Biology, University of Freiburg, Schänzlestr. 1, D-79104 Freiburg, Germany.

Journal of Experimental Botany
|March 25, 2011
PubMed
Summary

Seed germination begins with water uptake, reactivating metabolism and triggering rapid gene expression changes. Hormones like abscisic acid and gibberellins are crucial for this early phase, impacting plant establishment.

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Area of Science:

  • Plant Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Most plant seeds disperse dry and require favorable conditions to germinate.
  • Seed physiology relies on stored messenger RNAs (mRNAs) translated upon imbibition.
  • Early germination involves complex metabolic reactivation and gene expression regulation.

Purpose of the Study:

  • To review recent advancements in understanding early seed germination.
  • To highlight the role of genome-wide gene expression analyses in seed germination research.
  • To provide an integrated view of the early germination phase.

Main Methods:

  • Review of recent scientific literature.
  • Analysis of genome-wide gene expression data.
  • Examination of transcript, protein, and hormone level alterations.

Main Results:

  • Early seed germination involves imbibition and a plateau phase of water uptake.
  • Massive transcriptome changes occur very early upon imbibition, regulated by environmental factors and hormones.
  • Abscisic acid and gibberellins are key regulators of early seed germination.
  • The early phase is characterized by dynamic biomechanical and molecular changes.

Conclusions:

  • Early seed germination involves coordinated molecular and biomechanical events.
  • These early events are critical for seed and seedling performance.
  • Understanding early germination is vital for plant establishment in natural and agricultural settings.