COS-OGA, a new oligosaccharidic elicitor that induces protection against a wide range of plant pathogens

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Abstract

COS-OGA is a new elicitor that combines oligochitosan and oligopectates in presence of calcium ions. Elicitation of tomato plants with COS-OGA has been tested and resulted in leaf peroxidase activity increase, transcription of SA-associated defence genes and overexpression of PR,
heat-shock and DNA/RNA remodelling proteins. Greenhouse and field trials confirmed the efficacy of
the elicitor against powdery mildew on cucumber and grapevine.
Original languageEnglish
Pages (from-to)403-407
JournalIOBC-WPRS Bulletin
Volume89
Publication statusPublished - 2013

Keywords

  • oligochitosan, oligopectate, innate immune system, Sphaerotheca fuliginea, Erysiphe necator

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