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.
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.