INHIBITION OF HOST GENE-EXPRESSION ASSOCIATED WITH PLANT-VIRUS REPLICATION

被引:103
作者
WANG, DW [1 ]
MAULE, AJ [1 ]
机构
[1] JOHN INNES CTR PLANT SCI RES, DEPT VIRUS RES, NORWICH NR4 7UH, NORFOLK, ENGLAND
关键词
D O I
10.1126/science.267.5195.229
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
Pea seed-borne mosaic virus (PSbMV) RNA replication in pea cotyledonary tissues was restricted largely to a zone of cells close to the infection front. In situ hybridization probes representing nine genes from two pathways of metabolism failed to detect RNA transcripts within this zone, although transcripts were found in similar amounts in tissues on either side of the zone. Thus, in common with some animal viruses, PSbMV transiently suppresses the expression of host genes. Host protein accumulation was also affected. These observations provide insights into virus-plant interactions and symptom expression.
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页码:229 / 231
页数:3
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