Gene Expression of Protease Inhibitors in Tomato Plants with Invasion by Root-Knot Nematode Meloidogyne incognita and Modulation of Their Activity with Salicylic and Jasmonic Acids

Abstract— The expression of the genes encoding inhibitors serine ( ISP ) and cysteine ​​proteinases ICP was studied in roots tomato plants resistant susceptible to root-knot nematode Meloidogyne incognita during infection under effects signaling molecules: salicylic (SA) jasmonic (JA) acids. It shown that, upon infection, are characterized by an increased accumulation transcripts at stages penetration development roots, while level transcription does not change plants. There a significant decrease invasion after treatment with SA or JA compared untreated plants, which makes it possible determine role proteinase resistance induced molecules. revealed that increase is accompanied inhibition reproductive potential size M. females, as well plant infection.