Abstract:
Summary
1. Some changes induced in Chinese cabbage nucleic metabolism by
infection with turnip yellow mosaic virus (TWMV) have been examined in
the first leaf to develop systemic symptoms. This leaf was used in an
attempt to avoid wounding effects, and its characteristics have been
defined to allow infection-induced changes to be related to the stags
of leaf development, the time course of infection and virus increase,
and the onset of microscopic and macroscopic symptom and stunting
effects. In some experiments, where effects at a late stage of
infection where studied, leaves showing mosaic symptoms were used.
