Affordable Access

deepdyve-link deepdyve-link
Publisher Website

In planta dynamic analysis of onion yellows phytoplasma using localized inoculation by insect transmission.

Authors
  • Wei, Wei
  • Kakizawa, Shigeyuki
  • Suzuki, Shiho
  • Jung, Hee-Young
  • Nishigawa, Hisashi
  • Miyata, Shin-Ichi
  • Oshima, Kenro
  • Ugaki, Masashi
  • Hibi, Tadaaki
  • Namba, Shigetou
Type
Published Article
Journal
Phytopathology
Publisher
Scientific Societies
Publication Date
Mar 01, 2004
Volume
94
Issue
3
Pages
244–250
Identifiers
DOI: 10.1094/PHYTO.2004.94.3.244
PMID: 18943972
Source
Medline
License
Unknown

Abstract

ABSTRACT Due to the lack of a means to inoculate plants mechanically, the histological dynamics and in planta spread of phytoplasmas have been studied very little. We analyzed the dynamics of plant infection by phytoplasmas, using a technique to infect a limited area of a leaf, nested polymerase chain reaction (PCR), real-time PCR, and immunohistochemical visualization. Following localized inoculation of a leaf of garland chrysanthemum (Chrysanthemum coronarium) by the vector leafhopper Macrosteles striifrons, the onion yellows (OY) phytoplasma spread within the plant from the inoculated leaf to the main stem (1 day postinoculation [dpi]), to the roots and the top leaf (2 dpi), and to other leaves from top to bottom (from 7 to 21 dpi). The populations of the OY phytoplasmas in inoculated leaves and roots increased approximately sixfold each week from 14 to 28 dpi. At 14 dpi, the OY phytoplasmas colonized limited regions of the phloem tissue in both the root and stem and then spread throughout the phloem by 21 dpi. This information should form the basis for elucidating the mechanisms of phytoplasma multiplication and migration within a plant host.

Report this publication

Statistics

Seen <100 times