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Interactions of Soybean mosaic virus Strains in Mixed Infections: Effects on Symptom Expression, Seed Transmission and Yield in Soybean KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/319740
Soybeans X soybeans mosaic virus (SMV) strains interactions affected plant growth and seed transmission. Strain virulence of SMV depended on host cultivars. Kwangankong and Tawonkong were susceptible to G7H and G5 strains, causing mosaic symptoms. The distribution patterns of two SMV strains in soybean plants inoculated with G7H, G5 and G7H/G5 sets were investigated by RT-PCR/RFLP analysis. In the first treatment, two primary leaves in a single plant were infected with both strains by means of one strain per leaf. The leaves of Kwangankong and Tawonkong at V2, V4 and V6 stage were doubly infected with the two strains and the upper leaves than those had only G7H strain. Secondly, the two soybeans were inoculated with G7H, and 24 h after followed by the other strain inoculation. The leaves of V6 and V8 stages in all infected plants showed mosaic symptoms caused by G7H, and there was no detection of G5 strain. In contrast, the reverse treatment with G5 and G7H induced different results. Pre-inoculated G5 strain detected in every stage besides G7H strain. Host X SMV strain compatibility influenced seed coat mottling, yield, plant height, number of pod per plant. G7H had a seed mottling rate of 98.5% in Kwangankong, while G5 had an incidence of seed mottling of 1.4% in the same cultivar. G5 was more virulent to Kwangankong and had a lower affinity for infecting soybean seed mottling. Additional inoculation of G7H protected soybean yield and growth from G5-inducing loss in Kwangankong.
