Search for alternate hosts of the coconut Cape Saint Paul Wilt Disease pathogen

Yankey Egya Ndede, Pilet Fabian, Quaicoe Robert N., Dery Sylvester Kuuna, Dollet Michel, Dzogbefia Victoria Pearl. 2009. Search for alternate hosts of the coconut Cape Saint Paul Wilt Disease pathogen. OCL. Oléagineux Corps gras Lipides, 16 (2) : 123-126.

Résumé : Lethal Yellowing disease locally called Cape Saint Paul wilt disease (CSPWD) is the bane of the coconut industry in Ghana and is caused by a phytoplasma. In Ghana, there are areas where the disease has re-infected re-plantings long after decimating all the palms in the area. This brings to the fore the possibility of alternate hosts in the spread of the disease because the pathogen is an obligate parasite. In this work, a number of plants were screened for their host status to the CSPWD pathogen. The presence of phytoplasmas in these plants was tested by polymerase chain reaction analysis using universal phytoplasma primers P1/P7 and CSPWD-specific primers G813/GAKSR. Although Desmodium adscendens tested positive to the CSPWD-specific primers, cloning and sequencing did not confirm it as an alternate host. The identification of alternate hosts will help us to evolve sound control strategies against the spread of the disease.

Mots-clés Agrovoc : Cocos nucifera, phytoplasme, maladie bactérienne, plante hôte

Mots-clés géographiques Agrovoc : Ghana

Mots-clés complémentaires : Jaunissement mortel, Cape Saint Paul Wilt Disease

Classification Agris : H20 - Maladies des plantes

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Yankey Egya Ndede, OPRI (GHA)
• Pilet Fabian, CIRAD-BIOS-UPR Etiologie dépérissements (FRA) ORCID: 0000-0003-0079-216X
• Quaicoe Robert N., OPRI (GHA)
• Dery Sylvester Kuuna, OPRI (GHA)
• Dollet Michel, CIRAD-BIOS-UPR Etiologie dépérissements (FRA)
• Dzogbefia Victoria Pearl, KNUST (GHA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/550769/)

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