1887

Abstract

The and genes of encode homologous proteins that are required for tobamovirus multiplication. Although the genome encodes another -like gene, , the tobamovirus coat protein (CP) does not accumulate to a detectable level in the double mutant. Here, double and triple mutants of , and were generated to investigate whether THH1 functions to support tobamovirus multiplication. In the double mutant, the tobamovirus CP accumulated to a level that was detectable, but lower than that in the single mutant. In double-mutant lines overexpressing , the tobamovirus CP accumulated to a level similar to that observed in wild-type plants. These results suggest that supports tobamovirus multiplication, but to a lesser extent than and . The expression level of is lower than that of and , which might explain the smaller contribution of to tobamovirus multiplication.

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2006-08-01
2021-10-26
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