Transgenic Plant
Resistance to L-phosphinothrium in tobacco plants is developed by the transfer of

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

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Transgenic Plant
In transgenic plants that have been manipulated to express patho-genesis-related (PR) proteins all the time it has been shown that

these provide no protection at all against pathogens
expression of one PR protein provides high levels of protection against many pathogens
these proteins trigger the production of other antimicrobial defenses
expression of two PR proteins provides some protection against a few pathogens

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