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Resistance of Trichoderma endochitinase tobacco plants to R. solani. Plant growth from 14 to 30 days on R. solani-infested soil relative to growth on noninfested soil (expressed as a percentage of plant height obtained on noninfested soil, which was taken as 100%). Control plants (indicated by arrows) and representative transgenic lines (see legend to Fig. 2); Tx (2 to 10 and 14) transformed with p35S-psCHIT42; Tx (1, 11, 18, 21, 23, and 31) transformed with p35S-CHIT42.
