Natural host range and symptoms Symptoms vary cyclically over a few weeks and vary seasonally. Symptoms light green to yellow dashes, streaks and stripes parallel to the mid-rib, producing mosaic pattern. Experimentally infected plants mostly show mosaics. Diagnostically susceptible host species and symptoms Chenopodium quinoa - few necrotic local lesions. Severely diseased plants were reduced in height and leaf size.
Remission occurs on plants with faint chlorotic spots or mild mosaics.
Diagnostically insusceptible host species Chenopodium amaranticolor, Gomphrena globosa, Nicotiana clevelandii, N. debneyi, N. glutinosa . Maintenance and propagation hosts Hordeum vulgare, Nicotiana benthamiana . Avena sativa Brassica campestris ssp. Physical and biochemical properties Properties of particles in sap Leaf sap contains few virions, or contains many virions. Basic helix obscure.