Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6132904 | Journal of Virological Methods | 2016 | 18 Pages |
Abstract
Rice stripe virus (RSV), the causative agent of rice stripe disease, is transmitted by Laodelphax striatellus in a persistent-propagative manner. Efficient virus acquisition is primary for studies of virus transmission and virus-insect vector interactions. However, under greenhouse conditions, less than 30% of the L. striatellus population, on average, become viruliferous during feeding on RSV-infected plants. Here, we explored a method for efficient RSV acquisition by feeding the insects with a virus-containing artificial diet. Virus particles were partially purified from frozen infected rice leaves. A series of RSV concentrations in a 5% sucrose solution were tested in the feed of L. striatellus nymphs. The percentage of infected insects increased along with the increasing viral concentration, and the highest infection percentage 96% was achieved using a 1200 ng μLâ1 crude RSV suspension after 48 h feeding. RSV particles acquired in this manner were able to spread to L. striatellus salivary glands. This improved method of obtaining viruliferous insects should assist the study of RSV transmission mechanisms in L. striatellus.
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Authors
Yan Huo, Liying Chen, Lei Su, Yao Wu, Xiaoying Chen, Rongxiang Fang, Lili Zhang,