Induction of plant defense responses by Ocimum gratissimum L. (Lamiaceae) leaf extracts

Flávia Tavares Colpas, Kátia Regina Freitas Schwan-Estrada, José Renato Stangarlin, Maria De Lurdes Ferrarese, Carlos Alberto Scapim, Solange Maria Bonaldo
2009 Summa Phytopathologica  
Aqueous extracts of the leaves of Ocimum gratissimum at 10, 25, 40 and 50% (w/v) concentrations induced the production of phytoalexins in soybean cotyledons and sorghum mesocotyls. The aqueous extracts also induced systemic resistance in cucumber to Colletotrichum lagenarium, reflected by reduction in disease incidence and an increase in chitinase production. Modes of action and the existence of possible elicitors of defense response in O. gratissimum leaf extracts are discussed.
doi:10.1590/s0100-54052009000300005 fatcat:caayvcrgjzhzlip3454ejk3dbu