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Related Concept Videos

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Canonical Wnt Signaling Pathway

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The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
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Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
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Related Experiment Video

Updated: Sep 23, 2025

Use of Arabidopsis eceriferum Mutants to Explore Plant Cuticle Biosynthesis
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Use of Arabidopsis eceriferum Mutants to Explore Plant Cuticle Biosynthesis

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Regulatory mechanisms underlying cuticular wax biosynthesis.

Saet Buyl Lee1, Mi Chung Suh2

  • 1Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, 54874, Korea.

Journal of Experimental Botany
|May 13, 2022
PubMed
Summary

Plants use hydrophobic cuticles for protection. This review details the regulatory mechanisms controlling cuticular wax biosynthesis at multiple levels for optimal growth and stress defense.

Keywords:
ArabidopsisE3 ubiquitin ligasecuticlecuticular waxdroughtenvironmental stressepigenetic regulationgene silencingmiRNAtranscription factor

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Last Updated: Sep 23, 2025

Use of Arabidopsis eceriferum Mutants to Explore Plant Cuticle Biosynthesis
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Area of Science:

  • Plant Biology
  • Biochemistry

Background:

  • Plants possess hydrophobic cuticles on aerial surfaces for protection against terrestrial stresses.
  • The cuticle is primarily composed of cutin (a polyester of fatty acids) and cuticular waxes (very-long-chain fatty acids and derivatives).

Purpose of the Study:

  • To review the regulatory mechanisms governing plant cuticular wax biosynthesis.
  • To understand how plants balance growth and stress defense through metabolic control.

Main Methods:

  • Genetic approaches (forward and reverse genetics)
  • Transcriptomic analysis
  • Biochemical assays

Main Results:

  • Identification of key enzymes, transporters, and regulators in cutin and cuticular wax biosynthesis.
  • Cuticular wax biosynthesis is dynamically regulated by organ-specificity and environmental conditions.
  • Multiple regulatory layers control carbon flux towards wax production.

Conclusions:

  • Plant cuticular wax biosynthesis is intricately regulated at transcriptional, post-transcriptional, post-translational, and epigenetic levels.
  • Understanding these mechanisms is crucial for plant adaptation and stress resilience.