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Transgenic tobacco plants overexpressing Chitinases of Fungal Origin Show Enhanced Resistance to Biotic and Abiotic Stress Agents

AutorDana, María de la Mercedes; Pintor-Toro, José Antonio ; Cubero, Beatriz
Fecha de publicación2006
EditorAmerican Society of Plant Physiologists
CitaciónPlant Physiology 142(2): 722–730 (2006)
ResumenGenes encoding defense-related proteins have been used to alter the resistance of plants to pathogens and other environmental challenges, but no single fungal gene overexpression has produced broad-spectrum stress resistance in transgenic lines. We have generated transgenic tobacco (Nicotiana tabacum) lines that overexpress the endochitinases CHIT33 and CHIT42 from the mycoparasitic fungus Trichoderma harzianum and have evaluated their tolerance to biotic and abiotic stress. Both CHIT33 and CHIT42, individually, conferred broad resistance to fungal and bacterial pathogens, salinity, and heavy metals. Such broad-range protective effects came off with no obvious detrimental effect on the growth of tobacco plants.
Versión del editorhttp://dx.doi.org/10.1104/pp.106.086140
URIhttp://hdl.handle.net/10261/3350
DOI10.1104/pp.106.086140
ISSN1532-2548
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