When the lower leaves of Nicotiana glutinosa or Samsun NN tobacco, local lesion hosts for tobacco mosaic virus (TMV), were inoculated with TMV and kept at 20 °C in continuous light, non-viral lesions began to appear on non-inoculated upper leaves about 8 days later. It is postulated that these non-viral lesions might be induced by substances that move through stem tissues from the inoculated leaves bearing local lesions.
MiramiY.,
NishijimaY.,
IimuraH.,
SuzukiA.,
TamuraS.1971; Chemical studies on brown-spot disease of tobacco plants, 1. Tenuazonic acid as a vivotoxin of Alternaria longipes. Agricultural and Biological Chemistry 35:611–618
RossA. F.1966 Systemic effects of local lesion formation. In Viruses of Plants pp 127–150 Edited by
BeemsterA. B. R.,
DijkstraJ.
Amsterdam: North-Holland Publishing Co;
ShimomuraT.1972; Restriction of movement of TMV from inoculated leaf to stem in local lesion host. Annals of the Phytopathological Society of Japan 38:75–80