The possible costs of inducible defences against pests were evaluated in tomato. To activate inducible resistance traits, we used transgenic plants that over-expressed the systemin precursor (prosystemin). The constitutive expression of the prosystemin, which is normally induced by herbivores in tomato, allowed the measurement of the impact of induced defences in a pest-free environment. The results showed that the continuous activation of traits that are normally induced by pests should be costly, affecting the growth, physiology and reproductive success of tomato plants.
Systemin-inducible defences against pests are costly in tomato / Corrado, Giandomenico; Agrelli, Diana; Rocco, M.; Basile, Boris; Marra, M.; Rao, Rosa. - In: BIOLOGIA PLANTARUM. - ISSN 0006-3134. - 55:2(2011), pp. 305-311. [10.1007/s10535-011-0043-5]
Systemin-inducible defences against pests are costly in tomato
CORRADO, GIANDOMENICO;AGRELLI, DIANA;BASILE, BORIS;RAO, ROSA
2011
Abstract
The possible costs of inducible defences against pests were evaluated in tomato. To activate inducible resistance traits, we used transgenic plants that over-expressed the systemin precursor (prosystemin). The constitutive expression of the prosystemin, which is normally induced by herbivores in tomato, allowed the measurement of the impact of induced defences in a pest-free environment. The results showed that the continuous activation of traits that are normally induced by pests should be costly, affecting the growth, physiology and reproductive success of tomato plants.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
