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Related Concept Videos

Cycloaddition Reactions: MO Requirements for Photochemical Activation01:12

Cycloaddition Reactions: MO Requirements for Photochemical Activation

Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Cell Signaling in Plants01:25

Cell Signaling in Plants

Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
Free-Radical Chain Reaction and Polymerization of Alkenes02:35

Free-Radical Chain Reaction and Polymerization of Alkenes

The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
Transgenic Plants02:50

Transgenic Plants

Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...

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Related Experiment Video

Updated: Jun 22, 2026

Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria
08:51

Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria

Published on: November 10, 2016

Recent advances in ethylene research.

Zhefeng Lin1, Silin Zhong, Don Grierson

  • 1Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK.

Journal of Experimental Botany
|July 2, 2009
PubMed
Summary
This summary is machine-generated.

Ethylene is a plant hormone regulating growth, development, and stress responses. Recent research reveals complex molecular networks controlling its synthesis and action, crucial for plant adaptation and reproduction.

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Area of Science:

  • Plant Biology
  • Molecular Plant Science
  • Hormone Signaling

Background:

  • Ethylene is a critical plant hormone influencing seed germination, fruit ripening, senescence, and stress responses.
  • Its regulation is vital for plant adaptation and reproductive success.
  • Understanding ethylene's molecular mechanisms is key to plant science.

Purpose of the Study:

  • To review recent advances in understanding ethylene synthesis and action.
  • To focus on regulatory networks controlling ethylene synthesis.
  • To highlight ethylene's role in flower development and fruit ripening.

Main Methods:

  • Analysis of ethylene biosynthesis and signaling pathways.
  • Identification of genes involved in ethylene regulation through mutant screening and cloning.
  • Integration of data from Arabidopsis and other plant species.

Main Results:

  • Major advances in identifying genes for ethylene biosynthesis, signal transduction, and response pathways.
  • Elucidation of the complex regulatory networks governing ethylene synthesis and action.
  • Demonstration of ethylene's multifaceted roles in plant development.

Conclusions:

  • Ethylene's simple chemical structure belies its complex regulatory mechanisms.
  • Extensive gene families and intricate signaling pathways control ethylene levels and responses.
  • Ethylene interacts with other hormones, contributing to its broad regulatory impact.