Transgenic Plant
Resistance to sulphonyl urea compounds in transgenic tobacco plant has been developed by the transfer of

any of the above
gene for ALS (acetolactate synthase)
gene for EPSPS (5-enol-pyruvyl shikimat 3 phosphate synthase)
gene for GS (glutamine synthase)

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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
increasing evaporative cooling from leaf surfaces
cooling plants using the Peltier effect

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