Description

Abstract: A virus isolate(T-t) recovered from arrowleaf clover (Tr~oliumve sicuIosum) inthe field was found to infect peanut (Arachis hypagaeo) under greenhouse conditions. In peanut. initial symptoms were chtorotic rings and spots. After 2-3 wk, these symptoms faded and were no longer evident. Flexuous rod-shaped particles we= observed under an electron microscope with leaf-dip preparations of infected peanut tissue. The virus was mechanically transmissible and was transmitted in a nonpersistent manner by the cowpea aphid (Aphis craccivora). Crystalline inclusions were observed in the cytoplasm and nuclei of infected peanut plants. No serological relationship was found to either OF the potyviruses that commonly infect peanut (peanut mottle virus and peanut stripe virus). A strong serological reaction was obtained in enzyme-linked immunosorbent assays against clover yellow vein (CYYV Pratt) and bean yellow mosaic viruses (BYMV 204-11, two potyviruses not previously reported to infect peanut. Addit~onal physical characteristics demonstrated that this virus was an sola ate of BYMV. In a survey of commercial peanut fields in Georgia. BY MV was found to naturally infect peanuts in only one field in one of 12 counties surveyed.