Transgenic Plant
Tomatoes exhibiting delayed ripening express antisense RNA against

glycerol 1 phosphate acyl transferase
ACC deaminase
polygalactouranase
sucrose phosphate synthase gene

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Transgenic Plant
Low temperatures induce the expression of many cold-induced genes. Transgenic plants with improved cold tolerance have been produced by

expressing a gene for production of antifreeze (ethylene glycol) in plants
expressing the protein that activates expression of these genes all the time in plants
cooling plants using the Peltier effect
increasing evaporative cooling from leaf surfaces

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