Abstract
The pathogenesis of Cylindrocladitun scoparium, the causal agent of a stemrot in Erica gracilis, was examined by artificial inoculations and histological investigations. It could be observed that the fungus was able to infect each stage of the host. The further development is influenced by predisposition of the host. The predisposition changes reversibly from high susceptibility to high resistance. During fast growth the susceptibility of the host rises. The fungus grows rather quickly into xylem vessels and causes severe symptoms of wilt. If the predisposition of the host is low the lateral penetration of Cylindrocladium is restricted to the outer cell layers of the stem. In this case no disease symptoms are visible. Knowing the influence of pathogenesis by plant predisposition it is possible to explain the specific incidence of symptoms in horticultural practice and to develop control measures.
| Translated title of the contribution | Investigations of cylindrocladium scoparium morgan pathogenesis in erica gracilis salisb |
|---|---|
| Original language | German |
| Pages (from-to) | 116-121 |
| Number of pages | 6 |
| Journal | Gartenbauwissenschaft |
| Volume | 61 |
| Issue number | 3 |
| State | Published - 1996 |