Lack of Evidence for Transmission of Verticillium dahliae by the Olive Bark Beetle Phloeotribus scarabaeoides in Olive Trees
| Autor: | Francisco Javier López-Escudero, Enrique Vargas-Osuna, Ibrahim ElDesouki-Arafat, Antonio Trapero, Hani K Aldebis-Albunnai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Microbiology (medical) Bark beetle Fungus 01 natural sciences Article 030308 mycology & parasitology Fungus-insect interaction 03 medical and health sciences Immunology and Allergy Verticillium dahliae Olea europaea Molecular Biology 0303 health sciences fungus–insect interaction General Immunology and Microbiology biology Scolytidae Inoculation fungi Verticillium wilt food and beverages biology.organism_classification Olive trees Horticulture Infectious Diseases visual_art Shoot visual_art.visual_art_medium Medicine Bark 010606 plant biology & botany |
| Zdroj: | Pathogens 10(5), 534 (2021) Pathogens, Vol 10, Iss 534, p 534 (2021) Helvia. Repositorio Institucional de la Universidad de Córdoba instname Pathogens Volume 10 Issue 5 Helvia: Repositorio Institucional de la Universidad de Córdoba Universidad de Córdoba |
| Popis: | Verticillium wilt of olive, caused by Verticillium dahliae Kleb., is one of the most important diseases affecting olive crops in the Mediterranean area. With the aim to evaluate the role of Phloeotribus scarabaeoides (Bernard) (olive bark beetle) as a dispersal vector of V. dahliae, several experiments were conducted in semi-controlled conditions from May 2009 to April 2012. Groups of olive trees (2.5-year-old) certified free from V. dahliae were covered by a mosquito net and exposed to adults of P. scarabaeoides by three different ways: (1) branches or trunks collected in several olive orchards from trees severely affected by Verticillium wilt and showing apparent entry holes (mating galleries) of P. scarabaeoides (2) adults of olive bark beetle extracted from damaged branches collected in the field (3) adults from damaged branches that were superficially inoculated with V. dahliae. The fungus V. dahliae was not detected either by microbiological and molecular techniques from shoots of olive trees with galleries of the insect or from any of the tissues of the collected beetle adults from the galleries. Additionally, Verticillium wilt disease symptoms were not observed in olive trees exposed to the olive bark beetles. Moreover, the pathogen was never detected from any beetle adults that were recovered from the mating galleries of branches or trunks collected in several olive orchards from trees severely affected by Verticillium wilt. We conclude that P. scarabaeoides is not a vector of V. dahliae under the investigated experimental conditions. |
| Databáze: | OpenAIRE |
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