scholarly journals Characteristic of Tobacco mosaic virus isolated from cucumber and tobacco collected from East Java, Indonesia

2019 ◽  
Vol 20 (10) ◽  
Author(s):  
LISTIHANI ◽  
SRI HENDRASTUTI HIDAYAT ◽  
SURYO WIYONO ◽  
Tri Asmira Damayanti
Keyword(s):  
Phylogenetic Analysis ◽  
Amino Acid ◽  
Nucleic Acid ◽  
Coat Protein ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Protein Gene ◽  
Cp Gene ◽  
Emerging Virus ◽  
Tomato Isolate

Abstract. Listihani, Hidayat SH, Wiyono S, Damayanti TA. 2019. Characteristic of Tobacco mosaic virus isolated from cucumber and tobacco collected from East Java, Indonesia. Biodiversitas 20: 2937-2942. Tobacco mosaic virus (TMV) is a newly emerging virus infecting cucumbers in Java, Indonesia. The basic characters of the TMV isolated from cucumber need further study to investigate its differences with that from tobacco. Thus, the research aimed to study the character of both isolates based on their biological, symptomatology and nucleic acid of coat protein (CP) gene properties. The TMV isolates from both cucumber and tobacco were able to infect similar indicator plants with differing symptom expressions, especially on eggplant. Homology of nucleotide and amino acid of coat protein gene among isolates were about 90.3% and 91.0%, and homology to other isolates was about 87.6 to 93.8% and 89.3 to 96.8%, respectively. There were 17 amino acid differences in the CP gene which is presumed to differentiate those two isolates. Phylogenetic analysis CP gene sequences compared with corresponding isolates in GenBank showed the two isolates separated in different clades. The cucumber isolate from Kediri is closely related to tomato isolate from China in clade I, while tobacco isolate from Jember closely related to tobacco isolate from China in clade IIindicating the existence of two differ TMV variants. It will increase the difficulty to manage TMV in the fields.

Kazakh strains of tobacco mosaic virus: two strains with potentially destabilizing amino acid substitutions in the coat protein

2000 ◽  
Vol 56 (2) ◽  
pp. 71-77 ◽  
Author(s):  
VICTOR K. NOVIKOV ◽  
EKATERINA V. BELENOVICH ◽  
EVGENY N. DOBROV ◽  
SERGEI K. ZAVRIEV
Keyword(s):  
Amino Acid ◽  
Coat Protein ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Amino Acid Substitutions

scholarly journals Bean common mosaic virus and Bean common mosaic necrosis virus in Mexico

Plant Disease ◽  
2003 ◽  
Vol 87 (1) ◽  
pp. 21-25 ◽  
Author(s):  
N. Flores-Estévez ◽  
J. A. Acosta-Gallegos ◽  
L. Silva-Rosales
Keyword(s):  
Coat Protein ◽  
Mosaic Virus ◽  
Coat Protein Gene ◽  
Protein Gene ◽  
Bean Common Mosaic Virus ◽  
Nucleotide Sequences ◽  
Necrosis Virus ◽  
Cp Gene

A survey was performed in Mexico to study the distribution of Bean common mosaic virus (BCMV) and Bean common mosaic necrosis virus (BCMNV) using a set of primers directed to the coat protein gene (CP) that were designed to detect and characterize the two viral species. Both viral species were present in different locations in the country. BCMV was predominant in the central states of the country, whereas BCMNV proliferated toward the eastern tropical states. The alignment of nine nucleotide sequences for each viral species at the amino region of the CP gene confirmed the identities of the viruses and set the basis to assign them tentatively to pathogroups I, II, and VI.

scholarly journals Biological, Pathological, and Molecular Characteristics of a New Potyvirus, Dendrobium Chlorotic Mosaic Virus, Infecting Dendrobium Orchid

Plant Disease ◽  
2019 ◽  
Vol 103 (7) ◽  
pp. 1605-1612 ◽  
Author(s):  
Chih-Hung Huang ◽  
Chia-Hsing Tai ◽  
Ruey-Song Lin ◽  
Chung-Jan Chang ◽  
Fuh-Jyh Jan
Keyword(s):  
Amino Acid ◽  
Nucleotide Sequence ◽  
Coat Protein ◽  
Amino Acid Sequence ◽  
Mosaic Virus ◽  
Coat Protein Gene ◽  
Nucleotide Sequence Identity ◽  
Amino Acid Sequence Identity ◽  
Protein Gene ◽  
Sequence Identity

Dendrobium smillieae is one of the popular orchids in Taiwan. This report describes a new potyvirus tentatively named Dendrobium chlorotic mosaic virus (DeCMV) causing chlorotic and mosaic symptoms in D. smillieae. Enzyme-linked immunosorbent assay (ELISA) tests using six antisera against orchid-infecting viruses revealed that only a monoclonal antibody against the potyvirus group reacted positively with crude saps prepared from a symptomatic dendrobium orchid. Potyvirus-like, flexuous, filamentous particles were observed under an electron microscope, measuring approximately 700 to 800 nm in length and 11 to 12 nm in diameter. Sequence analyses revealed that DeCMV coat protein gene shared 59.6 to 66.0% nucleotide sequence identity and 57.6 to 66.0% amino acid sequence identity, whereas the DeCMV complete genome shared 54.1 to 57.3% nucleotide sequence identity and 43.7 to 49.5% amino acid sequence identity with those other known potyviruses. These similarity levels were much lower than the criteria set for species demarcation in potyviruses. Thus, DeCMV can be considered a new potyvirus. The whole DeCMV genome contains 10,041 nucleotides (GenBank accession no. MK241979) and encodes a polyprotein that is predicted to produce 10 proteins by proteolytic cleavage. In a pathogenicity test, results of inoculation assays demonstrated that DeCMV can be transmitted to dendrobium orchids by grafting and mechanical inoculation, as verified by ELISA and western blot analyses using the DeCMV polyclonal antiserum and by reverse transcription polymerase chain reaction using the coat protein gene-specific primers. The inoculated orchids developed similar chlorotic and mosaic symptoms. In conclusion, DeCMV is a novel orchid-infecting potyvirus, and this is the first report of a new potyvirus that infects dendrobium orchids in Taiwan.

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