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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Which nematode was reported as the first virus-transmitted (vector) nematode?

    Question: Which nematode was reported as the first virus-transmitted (vector) nematode?

    Options:

    Longidorus sp.
    Paralongidorus sp.
    Xiphinema index
    Trichodorus minor

    ✅Explanation:
    In 1958, Hewitt, Raski, and Goheen reported that Xiphinema index transmits the Grapevine fanleaf virus (GFLV), marking the first documented case of a nematode acting as a virus vector. This discovery revolutionized the understanding of plant disease transmission and highlighted the importance of nematodes as vectors of plant viruses.
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