Plants (Sep 2021)

A Simple Method for the Acquisition and Transmission of Brassica Yellows Virus from Transgenic Plants and Frozen Infected Leaves by Aphids

  • Deng-Pan Zuo,
  • Meng-Jun He,
  • Xiang-Ru Chen,
  • Ru-Jian Hu,
  • Tian-Yu Zhao,
  • Xiao-Yan Zhang,
  • Yan-Mei Peng,
  • Ying Wang,
  • Da-Wei Li,
  • Jia-Lin Yu,
  • Cheng-Gui Han

DOI
https://doi.org/10.3390/plants10091944
Journal volume & issue
Vol. 10, no. 9
p. 1944

Abstract

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Brassica yellows virus (BrYV) is a tentative species of the genus Polerovirus, which occurs widely, and mostly damages Brassicaceae plants in East Asia. Because BrYV cannot be transmitted mechanically, an insect-based transmission method is required for further virus research. Here, a reliable and unrestricted method is described, in which non-viruliferous aphids (Myzus persicae) acquired BrYV from transgenic Arabidopsis thaliana, harboring the full-length viral genome germinated from seeds and its frozen leaves. The aphids then transmitted the virus to healthy plants. There was no significant difference in acquisition rates between fresh and frozen infected leaves, although the transmission rate from frozen infected leaves was lower compared to fresh infected leaves. This simple novel method may be used to preserve viral inocula, evaluate host varietal resistance to BrYV, and investigate interactions among BrYV, aphids, and hosts.

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