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Characterization of a Virus Infecting Lisianthus
C C Chen1, Y K Chen2, H T Hsu3
1Department of Plant Protection, Taichung District Agricultural Improvement Station, Changhua 515, Taiwan.
Plant Disease
|March 8, 2019
Summary
A new virus strain affecting lisianthus plants was identified in Taiwan. This virus is a strain of Lisianthus necrosis necrovirus (LNV), confirmed through biological and serological characterization.
Area of Science:
- Plant virology
- Agricultural pathology
Background:
- Lisianthus (Eustoma russellianum) is an economically important ornamental plant.
- Necrosis symptoms in lisianthus can be caused by viral pathogens.
- Lisianthus necrosis necrovirus (LNV) was previously reported in Japan.
Purpose of the Study:
- To isolate and characterize a virus causing disease in imported lisianthus plants in Taiwan.
- To determine the relationship between the isolated virus and previously identified LNV.
Main Methods:
- Biological characterization through host range studies and mechanical inoculation.
- Physical characterization of virion morphology and size.
- Serological characterization using antiserum against LNV.
Main Results:
- A virus was isolated from symptomatic lisianthus plants in Taiwan.
- Purified virions were isometric, measuring 32-33 nm in diameter.
- The Taiwanese isolate was morphologically similar and serologically related to Japanese LNV, but exhibited differences in host range, confirming it as a distinct strain.
Conclusions:
- The isolated virus is identified as a strain of Lisianthus necrosis necrovirus (LNV).
- This finding has implications for disease management and quarantine measures for lisianthus trade.
- Further research may be needed to understand the full host range and epidemiological significance of this LNV strain.
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