Transgenic Plant
The first transgenic plants expressing engineered foreign genes were tobacco plants produced by the use of

Bacillus thuringiensis
Arabidopsis thaliana
Agrobacterium tumefaciens
Streptomyces hygroscopicus

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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 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
expressing a gene for production of antifreeze (ethylene glycol) in plants

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