The short‐term effects of infection by tobacco mosaic virus on apparent photosynthesis of tobacco leaves

Abstract
SUMMARY: Infection of two varieties of Nicotiana tabacum with the common strain of tobacco mosaic virus caused no permanent change in the apparent photosynthetic rate of the inoculated leaves in the first few hours after infection. Photosynthesis slowed transiently after inoculation as an effect of rubbing, but the leaves quickly recovered. These results are in conflict with those of Owen (1957b) (Ann. appl. Biol.45, 456); the differences between these two studies have not been rationalized.