Transcriptional and posttranscriptional plant gene silencing in response to a pathogen

被引:169
作者
Al-Kaff, NS [1 ]
Covey, SN [1 ]
Kreike, MM [1 ]
Page, AM [1 ]
Pinder, R [1 ]
Dale, PJ [1 ]
机构
[1] John Innes Ctr Plant Sci Res, Norwich NR4 7UH, Norfolk, England
关键词
D O I
10.1126/science.279.5359.2113
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
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页码:2113 / 2115
页数:3
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