Cereal Research Communications

, Volume 36, Supplement 6, pp 465–469 | Cite as

Infection of green fluorescence protein-tagged Fusarium graminearum on wheat and barley spikes

  • Xu Zhang
  • Theo Van De Lee
  • Marie Dufresne
  • Tai-guo Liu
  • Wei-zhong Lu
  • Da-zhao Yu
  • Hong-xiang MaEmail author
Open Access
Session 4 Pathogenesis and Plant Pathology


Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is a very serious disease in wheat and barley production area. FHB epidemics cause yield decreases and production of mycotoxin that renders the grain useless for flour and malt products. Understanding the infection mechanism of F. graminearum plays an important role for the disease control. In present study, green fluorescence protein (GFP)-tagged were infected to wheat and barley varieties by single floret injection and screened via GFP signal. Results showed similar infection pattern of F. graminearum on both wheat and barley. Pathogen geminated in the inoculated spikelets, grew on the top of ovary or between lemma and palea, and extended towards and through rachis to the adjacent spikelets to infect the whole spike. When a spike of cultivar with FHB resistance was inoculated by F. graminearum, only the injected spikelet showed symptom at 6 days past inoculation (dpi). GFP signals indicated that F. graminearum colonized only in the inoculated spikelet and stop at the compact tissue of rachilla at 6 dpi. On the contrary, the diseased spikelets were up to 5 at 6 dpi in the spike of cultivars susceptible to FHB. F. graminearum extended through compact tissue to rachis and infected to the adjacent spikelets by spreading upward and downward to adjacent florets inter- and intra-cellularly in vascular bundles and cortical tissue of the rachis.


Fusarium head blight green fluorescence protein infection process 


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© Akadémiai Kiadó, Budapest 2008

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Xu Zhang
    • 1
  • Theo Van De Lee
    • 2
  • Marie Dufresne
    • 3
  • Tai-guo Liu
    • 4
  • Wei-zhong Lu
    • 1
  • Da-zhao Yu
    • 5
  • Hong-xiang Ma
    • 1
    Email author
  1. 1.Institute of Agro-biotechnologyJiangsu Academy of Agricultural SciencesNanjingP. R. China
  2. 2.Plant Research InternationalWageningenThe Netherlands
  3. 3.Institut de Génétique et MicrobiologieUniv. Paris-Sud 11, CNRS, UMR8621OrsayFrance
  4. 4.State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agriculture SciencesBeijingP. R. China
  5. 5.Institute of Plant Protection and Soil ScienceHubei Academy of Agricultural SciencesWuhanP. R. China

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