In mature plants, ethylene influences leaf abscission, flower senescence, and root initiation. Understanding this process has allowed the development of controlled atmosphere storage and the use of ethylene inhibitors like 1-MCP, which extend shelf life and reduce postharvest losses globally.
Ethylene Function and Its Impact on Fruit Quality Traits
Biochemical Pathway and Perception The biosynthesis of ethylene begins with the amino acid methionine, which is converted through a series of enzymatic steps involving SAM synthetase and ACC synthase to produce 1-aminocyclopropane-1-carboxylic acid (ACC). ACC is then oxidized by ACC oxidase to yield ethylene, a reaction that requires oxygen and iron.
Breeding programs increasingly focus on modifying ethylene sensitivity to improve lodging resistance in cereals and enhance drought tolerance in legumes, demonstrating the tangible benefits of understanding this pathway. Ethylene function is a fundamental concept in plant physiology that describes the role of the gaseous hormone ethylene in regulating nearly every stage of a plant’s life cycle.
Ethylene Function and Its Impact on Fruit Quality Traits
During pathogen invasion, ethylene often works synergistically with jasmonic acid to activate defense genes. Plants perceive ethylene through a family of receptors located on the endoplasmic reticulum membrane.
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More perspective on Ethylene function can make the topic easier to follow by connecting earlier points with a few simple takeaways.