Transmission by Vectors

摘要: The first recorded experimental transmission by a natural vector of plant virus with filamentous particles (here termed virus) appears to have been that sugarcane mosaic potyvirus the aphid Rhopalosiphum maidis (Brandes, 1920). Because potyviruses comprise largest group and are among most commonly occurring viruses, it is perhaps not surprising since report they figured prominently in studies virus/vector relations. Thus, three potyviruses—henbane (HMV), potato Y (PVY), tobacco etch (TEV)—served as models work at Rothamsted late 1930s led definition so-called nonpersistent form (Watson Roberts, 1939), which insect acquires few seconds minutes, can immediately inoculate healthy plants, but rarely remains able do so for longer than an hour if allowed feed between acquisition inoculation, or hours fasted. PVY was used Bradley co-workers 1950s 1960s (see Bradley, 1964, 1966) series experiments aimed further our understanding this mode transmission.