Sweetpotato is susceptible to infection by several filamentous viruses of which only the aphid-transmitted sweetpotato feathery mottle virus (SPFMV) has been well-characterized. Sweetpotato mild mottle (SPMMV; transmitted by whiteflies) and sweetpotato latent (SPLV; for which no vector has been identified) viruses, although well-recognized, have not been definitively classified. The serological relationships among these viruses were re-examined with SPFMV-, SPLV- and SPMMV-specific polyclonal antisera and potyvirus cross-reactive monoclonal antibodies (MAbs) (...)
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John A. Hammond (1992) studied this question.