| characterization of distinct tombusviruses that cause diseases of lettuce and tomato in the western united states. | a soilborne disease of lettuce, associated with necrosis and dieback, has been found with increasing frequency in california and arizona over the last 10 years. an isometric virus, serologically related to tomato bushy stunt virus (tbsv), was consistently isolated from lettuce plants with these disease symptoms. back-inoculation to healthy lettuce plants and subsequent reisolation of the virus from symptomatic lettuce leaves suggested that this virus was the causal agent of this disease. a tombu ... | 2001 | 18944038 |
| evaluation of various species demarcation criteria in attempts to classify ten new tombusvirus isolates. | the usefulness of various suggested species demarcation criteria was compared in attempts to determine the taxonomic status of ten new tombusvirus isolates. five of them (lim 1, 2, 3, 5 and 6) were obtained from different sources of commercially grown statice (limonium sinuatum), two (gyp 1 and 2) from different sources of commercially grown gypsophila paniculata and three from water samples, i.e. from a small river (schunter) in northern germany, from a brook (near dossenheim) in southern germa ... | 2004 | 15593416 |