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Free keywords:
Nicotiana sylvestris; nitrogen; nicotine; allocation; growth; reproduction; induced defenses; costs of defense
Wound-induced changes; transgenic tobacco leads; tomato plants; inducible defenses; limited growth; wild tobacco; acid pools; expression; allocation; gene
Abstract:
We present the first evidence for a fitness cost of an inducible response that is detectable in a nitrogen (N) currency. Nicotine is an induced defense in Nicotiana sylvestris that can utilize 5-8% of the plant's total N, an investment that apparently c