Influence of auxin-like herbicides on tobacco mosaic virus multiplication
2000
Sindelarova, M. | Sindelar, L. | Burketova, L. (Academy of Sciences of the Czech Republic, Prague (Czech Republic). Inst. of Experimental Botany)
Tobacco (Nicotiana tabacum) leaf discs inoculated with tobacco mosaic virus (TMV) were treated with auxin-like herbicides 2,4-dichlorophenoxyacetic acid (2,4-D), 2-methyl-4-chlorphenoxyacetic acid (MCPA), 3-amino-1,2,4-triazol (Amitrol) and 6-chloro-2-ethylamino-4-isopropylamino-1,3,5-triazine (Atrazin). All herbicides enhanced the virus content. The 2,4-D alone did not affect the activity of the glucose-6-phosphate dehydrogenase and ribonucleases, but 2,4-D treatment together with TMV infection raised activities twice as high as in the untreated control discs. Polyacrylamide gel electrophoresis of acidic extracellular proteins washed from leaf discs treated with 2,4-D did not prove the induction of PR-proteins.
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