In Capsicum, the resistance against tobamoviruses conferred by the L2 gene is effective against all but one of the known tobamoviruses. Pepper mild mottle virus (PMMoV) is the only virus which escapes its action. To identify the viral factors affecting induction of the hypersensitive reaction (HR) mediated by the Capsicum spp. L2 resistance gene, we have constructed chimeric viral genomes betwe...

The goal of this study was to identify a source of natural plant compounds with inhibitory activity against pepper mild mottle virus (PMMoV). We showed, using a half-leaf assay, that murrayafoline-A (1) and isomahanine (2) isolated from the aerial parts of Glycosmis stenocarpa have inhibitory activity against PMMoV through curative, inactivation, and protection effects. Using a leaf-disk assay,...

background: watermelon silver mottle virus (wsmov), which belongs to the genus tospovirus, causes significant loss in cucurbitaceae plants. objectives: development of a highly sensitive and reliable detection method for wsmov.materials and methods: recombinant plasmids for targeting the sequence of nucleocapsid protein gene of wsmov were constructed. sybr green i real-time pcr was established a...

Red clover mottle virus (RCMV) is a member of the comoviruses, a group of picornavirus-like plant viruses. The X-ray structure of RCMV strain S has been determined and refined to 2.4 A. The overall structure of RCMV is similar to that of two other comoviruses, Cowpea mosaic virus (CPMV) and Bean pod mottle virus (BPMV). The sequence of the coat proteins of RCMV strain O were modeled into the ca...

Microtubules are closely associated with tubules containing virus particles in leaf cells infected with bean pod mottle virus or cowpea mosaic virus. The similar orientation and apparent continuity suggest that cores of tubules with virus particles are actually microtubules. It is suggested that microtubules may be involved in the intraand intercellular movement of viral components and in the a...

The complete genome sequence of a Pepper mild mottle virus (PMMoV) isolate obtained from Northeast China was determined by reverse transcription-PCR (RT-PCR) and rapid amplification of cDNA ends (RACE). Phylogenetic analysis showed that the virus isolate is closely related to Japanese, Chinese, Spanish, and U.S. isolates.

The complete genome sequence of an isolate of tomato mottle mosaic virus (ToMMV) infecting tomatoes in New York was obtained using small RNA (sRNA) deep sequencing. ToMMV_NY-13 shared 99% sequence identity with isolates from Mexico and Florida. Broader distribution of this emerging virus is a cause for concern to the tomato industry.

In Brazil, Potyvirus species in sweet potatoes have been detected mostly by serology. Here, we report the complete genome sequences of two Potyvirus species, Sweet potato feathery mottle virus strain (SPFMV-UNB-01) and Sweet potato virus G strain (SPVG-UNB-01).

The complete genome sequence (6,423 nucleotides [nt]) of an emerging cucumber green mottle mosaic virus (CGMMV) isolate on cucumber in North America was determined through deep sequencing of small (sRNA) and rapid amplification of cDNA ends. The virus shares 99% nucleotide sequence identity with the Asian genotype but only 90% with the European genotype.