Further Support of Conspecificity of Oak and Mango Powdery Mildew and First Report of Erysiphe quercicola and Erysiphe alphitoides on Mango in Mainland Europe

Mango leaves and inflorescences infected by powdery mildew in southern Spain were analyzed using multigene sequencing (ITS + 4 single-copy coding genes) to identify the causal agent. Erysiphe quercicola was detected in 97% out of 140 samples, collected in six different orchards in the Malaga region....

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Veröffentlicht in:Plant disease. - 1997. - 101(2017), 7 vom: 01. Juli, Seite 1086-1093
1. Verfasser: Desprez-Loustau, Marie-Laure (VerfasserIn)
Weitere Verfasser: Massot, Marie, Feau, Nicolas, Fort, Tania, de Vicente, Antonio, Torés, Juan Antonio, Ortuño, Dolores Fernández
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article
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520 |a Mango leaves and inflorescences infected by powdery mildew in southern Spain were analyzed using multigene sequencing (ITS + 4 single-copy coding genes) to identify the causal agent. Erysiphe quercicola was detected in 97% out of 140 samples, collected in six different orchards in the Malaga region. Among these, a small proportion also yielded E. alphitoides (8% of all samples) and E. alphitoides was found alone in 3% of samples. A phylogenetic approach was completed by cross inoculations between oak and mango, which led to typical symptoms, supporting the conspecificity of oak and mango powdery mildews. To our knowledge, this is the first report of E. quercicola and E. alphitoides causing powdery mildew on mango trees in mainland Spain, and thus mainland Europe, based on unequivocal phylogenetic and biological evidence. Our study thus confirmed the broad host range of both E. quercicola and E. alphitoides. These results have practical implications in terms of the demonstrated ability for host range expansion in powdery mildews. They also open interesting prospects to the elucidation of molecular mechanisms underlying the ability to infect single versus multiple and unrelated host plants since these two closely related powdery mildew species belong to a small clade with both generalist and specialist powdery mildews 
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700 1 |a Massot, Marie  |e verfasserin  |4 aut 
700 1 |a Feau, Nicolas  |e verfasserin  |4 aut 
700 1 |a Fort, Tania  |e verfasserin  |4 aut 
700 1 |a de Vicente, Antonio  |e verfasserin  |4 aut 
700 1 |a Torés, Juan Antonio  |e verfasserin  |4 aut 
700 1 |a Ortuño, Dolores Fernández  |e verfasserin  |4 aut 
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