Arbuscular mycorrhizal fungus changes alfalfa response to pathogen infection activated by pea aphid infestation.

ABSTRACT:

Introduction

Arbuscular mycorrhizal (AM) fungi are important for the resistance of plants to insect infestation and diseases. However, the effect of AM fungal colonization of plants response to pathogen infection activated by pea aphid infestation is unknown. Pea aphid (Acyrthosiphon pisum) and the fungal pathogen Phoma medicaginis severely limit alfalfa production worldwide.

Methods

This study established an alfalfa (Medicago sativa)-AM fungus (Rhizophagus intraradices)-pea aphid-P. medicaginis experimental system to clarify the effects of an AM fungus on the host plant response to insect infestation and subsequent fungal pathogen infection.

Results

Pea aphid increased the disease incidence of P. medicaginis by 24.94%.

SUBMITTER: Wang Y 

PROVIDER: S-EPMC9945236 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature