An improved detection method for the Rhopalosiphum padi virus (RhPV) allows monitoring of its presence in aphids and movement within plants

被引：23

作者：

Ban, L.

Didon, A.

Jonsson, L. M. V.

Glinwood, R.

Delp, G. ^{[1
]}

机构：

[1] Sodertorn Univ Coll, Sch Life Sci, SE-14189 Huddinge, Sweden

[2] Swedish Univ Agr Sci, Dept Ecol, SE-75007 Uppsala, Sweden

来源：

JOURNAL OF VIROLOGICAL METHODS | 2007年 / 142卷 / 1-2期

关键词：

barley; Rhopalosiphum padi; RhPV; RT-PCR;

D O I：

10.1016/j.jviromet.2007.01.014

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Rhopalosiphumpadi virus (RhPV) is an insect RNA virus that infects aphids, reducing their lifespan and fecundity. It can be transmitted vertically between aphids and horizontally via the plant. An improved detection method for the virus in aphids and plants using RT-PCR was developed; this allowed individual aphids to be tested for RhPV. Testing of R. padi aphids collected from different sites in Sweden revealed the presence of RhPV in wild aphid populations for the first time in Europe. Virus could be detected in several life stages of R. padi, including sexual individuals and eggs, establishing an over-wintering route for the virus. Using RT-PCR, systemic transport of the virus in plants was tracked. Virus spread from the aphid feeding site to all parts of the plant, including roots, within 7 days, and could be acquired by virus-free aphids feeding on the same plant. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：136 / 142

页数：7

共 16 条

[11] TRANSMISSION OF LEAFHOPPER-A VIRUS, VERTICALLY THROUGH EGGS AND HORIZONTALLY THROUGH MAIZE IN WHICH IT DOES NOT MULTIPLY [J].