Is a Fully Established Arbuscular Mycorrhizal Symbiosis Required for Bioprotection of Pisum sativum Roots against Aphanomyces euteiches?

Abstract

Bioprotection of pea roots against Aphanomyces euteiches by the arbuscular mycorrhizal fungus G. mosseae was demonstrated to depend on a fully established symbiosis. This was related with induction of mycorrrhiza-related chitinolytic enzymes. Possible mechanisms implicated in bioprotection are discussed.

Keywords

• chitinase
• chitosanase
• Glomus mosseae
• pea mutants