A single amino acid in the RNA-dependent RNA polymerase of Plantago asiatica mosaic virus contributes to systemic necrosis

Archives of Virology
Johji OzekiShigetou Namba

Abstract

From a lily isolate of Plantago asiatica mosaic virus (PlAMV-Li), two sub-isolates (Li1 and Li6) were obtained. Although the nucleotide sequences of Li1 and Li6 were highly conserved, they showed different pathogenicity in Nicotiana benthamiana. Li1 caused necrosis, whereas Li6 infected the plant asymptomatically. Inoculation tests with chimeric and point-mutated viruses revealed that amino acid 1154 of the RNA-dependent RNA polymerase (RdRp) contributes to the necrotic symptoms. The accumulation of the mutant viruses, in which amino acid 1154 of the RdRp was exchanged to the wild-type codon in Li1 and Li6, was almost equal.

References

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Citations

Jul 4, 2012·Molecular Plant-microbe Interactions : MPMI·Ping XuMarilyn J Roossinck
Aug 3, 2013·Molecular Plant-microbe Interactions : MPMI·Kyoko SugawaraShigetou Namba
May 14, 2005·Virology Journal·Peter J GaskillHoward S Fox
Oct 25, 2016·The Plant Journal : for Cell and Molecular Biology·Masayoshi HashimotoShigetou Namba
Oct 21, 2016·Molecular Plant-microbe Interactions : MPMI·Chantal BrosseauPeter Moffett
Aug 25, 2020·Journal of Experimental Botany·Guilherme Silva-MartinsPeter Moffett
Dec 24, 2019·Frontiers in Microbiology·Hideki TakahashiRichard Kormelink

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