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ARS Home » Pacific West Area » Pullman, Washington » Grain Legume Genetics Physiology Research » Research » Publications at this Location » Publication #375054
Research Project: Developing Abiotic and Biotic Stress-Resilient Edible Legume Production Systems through Directed GxExM Research

Location: Grain Legume Genetics Physiology Research

Title: Viral Diseases of Minor Importance. In: Compendium of Pea Diseases and Pests

Author
item LARSEN, RICHARD - Washington State University
item Porter, Lyndon

Submitted to: American Phytopathological Society Press
Publication Type: Book / Chapter
Publication Acceptance Date: 7/17/2020
Publication Date: N/A
Citation: N/A

Interpretive Summary: Bean yellow mosaic virus (BYMV), Faba bean necrotic yellow virus (FBNYV) and Pea early browning virus (PEBV) are viral diseases of minor importance on peas but can cause serious issues on occasion. BYMV is a Potyvirus commonly found worldwide. Symptoms on pea include, stunting, leaf mottling rather than a true mosaic, veinclearing, and dark green islands that occur randomly on leaves. The virus is transmitted by several species of aphids. Genetic resistance to this virus is available. FBNYV is an important phloem-limited Nanovirus. Symptoms for FBNYV are similar to BYMV. FBNYV is also transmitted by aphids but is not transmitted through seed. Resistance to this virus has not been identified in pea. PEBV is a Tobravirus. Symptoms consist of purple brown discolorations and vascular necrosis in stems and leaves. Leaves often turn bronze or brown. Stem apexes become chlorotic usually resulting in top necrosis. This virus is transmitted by stubby root nematodes and is seed transmitted. Many other viruses are known to infect pea naturally or experimentally, but tend to be of little consequence. These additional minor viruses are known to be transmitted by aphids, beetles, and thrips.

Technical Abstract: Bean yellow mosaic virus (BYMV), Faba bean necrotic yellow virus (FBNYV) and Pea early browning virus (PEBV) are viral diseases of minor importance on peas but can cause serious issues on occasion. BYMV is a Potyvirus commonly found worldwide. Symptoms on pea include, stunting, leaf mottling rather than a true mosaic, veinclearing, and dark green islands that occur randomly on leaves. The virus is transmitted by several species of aphids. Genetic resistance to this virus is available. FBNYV is an important phloem-limited Nanovirus. Symptoms for FBNYV are similar to BYMV. FBNYV is also transmitted by aphids but is not transmitted through seed. Resistance to this virus has not been identified in pea. PEBV is a Tobravirus. Symptoms consist of purple brown discolorations and vascular necrosis in stems and leaves. Leaves often turn bronze or brown. Stem apexes become chlorotic usually resulting in top necrosis. This virus is transmitted by stubby root nematodes and is seed transmitted. Many other viruses are known to infect pea naturally or experimentally, but tend to be of little consequence. These additional minor viruses are known to be transmitted by aphids, beetles, and thrips.