Transcriptional and Posttranscriptional Plant Gene Silencing in Response to a Pathogen

Plants are able to respond to pathogen attack to restrain development of a systemic infection. The response of Brassica napus (oilseed rape) to systemic infection with the DNA virus cauliflower mosaic virus was shown to result in enhancement and subsequent suppression of viral gene expression in par...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1998-03, Vol.279 (5359), p.2113-2115
Main Authors: Al-Kaff, Nadia S., Covey, Simon N., Kreike, Maria M., Page, Anthony M., Pinder, Rachel, Dale, Philip J.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Classical genetics, quantitative genetics, hybrids
DNA
Fundamental and applied biological sciences. Psychology
Genes
Genetic regulation
Genetics of eukaryotes. Biological and molecular evolution
Infections
Leaves
Messenger RNA
Plant molecular genetics
Pteridophyta, spermatophyta
RNA
Symptoms
Transgenes
Transgenic plants
Vegetals
Viruses
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Summary:Plants are able to respond to pathogen attack to restrain development of a systemic infection. The response of Brassica napus (oilseed rape) to systemic infection with the DNA virus cauliflower mosaic virus was shown to result in enhancement and subsequent suppression of viral gene expression in parallel with changes in symptom expression. Transgenes with homology to viral sequences were also affected. This phenomenon, which was shown to be mediated by both transcriptional and posttranscriptional mechanisms, might be related to regulation of highly expressed genetic elements.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.279.5359.2113