Applications : Transgenic Plants

Transgenic tomatoes

An "antisense" gene has been inserted into a tomato plant to block the function of a gene required for the production of ethylene.

Ethylene is the normal signal for ripening in tomatoes.

Transgenic tomatoes that cannot produce ethylene do not ripe until they are exposed to external ethylene.

Thus, the ripening of tomatoes, and probably many other physiological functions of plants can be controlled precisely.

Reference
http://www.oecd.org/ehs/mn107ku.htm

Production of Transgenic Tomatoes

Insect Resistant Cotton

The new genetically engineered cotton plant contains an extra gene inserted from Bacillus thuringiensis, a common bacterium.

This bacterium produces toxin naturally to kill cotton bollworms or other insects which eat the cotton plant's leaves and flower buds.

As a result, the transgenic cotton plant can produce the same toxin from their leaves to kill those insects.

Reference
http://aesrg.tamu.edu/Cotton/CotTrans.htm

Production of Insect Resistant Cotton

 

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