Functions of Ethylene

Following is the list of some functions ethylene performs as a plant growth regulator;

  1. Helps in the germination of seeds.
  2. Helps in the ripening of the fruits.
  3. Induces flowering from buds.
  4. Helps in the determination of sex in flowers and produces female flowers in a male plant.
  5. Helps in pollination.
  6. Helps in root initiation and root growth.
  7. Helps the flower in epinasty.
  8. Effects gravitropism by reducing sensitivity to gravity.
  9. Inhibits the longitudinal growth of the stem and promotes horizontal growth.
  10. Promotes the senescence of leaves and flowers.
  11. Promotes apical dominance.
  12. Induces artificial ripening in climatic fruits.
  13. Induces flowering in pineapple and mango.

What is Ethylene?

Ethylene is a chemical substance that has found a huge amount of applications for humans as well as nature. It is found in plants as an important hormone as well is used by humans to produce some of the important industrial products like polyethylene or polystyrene or even ethanol.

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Ethylene as a Plant Hormone

Ethylene acts as a plant hormone that is gaseous in nature. It is the first known gas found to be a natural hormone. It helps the plant to get rid of old leaves by inhibiting growth and promoting their abscission or shredding, opening of flowers from the bud, ripening the fruits, etc. It is observed that when raw bananas are kept together with oranges, the bananas start showing premature ripening, this is due to the effect of ethylene hormone present in the oranges. This hormone was identified by Dimitry Neljubov in the year 1901 however, its use in agriculture dates back to ancient Egyptians and Chinese cultures....

Ethylene

The IUPAC name of ethylene is “ethene”, however, it is also known as “etileno” or “polyethylene”. It is a hydrocarbon gas (the simplest alkene) that is colorless, flammable, and has a faint sweet-musky odor. It has a carbon-carbon double bond and has the chemical formula H2C=CH2 or C2H4. It acts as a naturally occurring plant hormone as well as widely used in chemical industries. When hydrated it forms ethanol. Ethylene can be obtained from natural gas and petroleum also....

Structure of Ethylene

It is an ethane derivative in which both carbon atoms share a double bond between them. Each carbon is bound by two hydrogen atoms thus filling its valencies. It is a simple molecule with a 133.9 pm bond length of the carbon-carbon double bond and a 108.7 pm bond length of the carbon-hydrogen single bond having an inner angle of 121.3°. All the carbons and hydrogen of the ethylene lie in the same plane i.e. they are coplanar....

Commercial use of Ethylene

Following is the list of some common commercial uses of ethylene;...

Functions of Ethylene

Following is the list of some functions ethylene performs as a plant growth regulator;...

FAQs on Ethylene

Q: Name some commercial materials which are obtained from ethylene....

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