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Open AccessArticle

Dactylonectria and Ilyonectria Species Causing Black Foot Disease of Andean Blackberry (Rubus Glaucus Benth) in Ecuador

1
Departamento de Ciencias de la Vida y la Agricultura, Universidad de las Fuerzas Armadas-ESPE, Av. General Rumiñahui, Sangolquí 171103, Ecuador
2
Plant Protection Department, National Institute of Agricultural Research (INIAP), Panamericana Sur km 1, Cutuglahua 171108, Ecuador
3
Fruit Program, National Institute of Agricultural Research (INIAP), Av. Interoceánica km 14 ½, Tumbaco 170184, Ecuador
4
Centro de Investigación de Alimentos, CIAL, Facultad de Ciencias de la Ingeniería e Industrias, Universidad UTE, Quito 170147, Ecuador
*
Author to whom correspondence should be addressed.
Diversity 2019, 11(11), 218; https://doi.org/10.3390/d11110218
Received: 7 October 2019 / Revised: 25 October 2019 / Accepted: 29 October 2019 / Published: 14 November 2019
(This article belongs to the Section Microbial Diversity and Culture Collections)
Andean blackberry (Rubus glaucus Benth) plants from the provinces of Tungurahua and Bolivar (Ecuador) started showing symptoms of black foot disease since 2010. Wilted plants were sampled in both provinces from 2014 to 2017, and fungal isolates were obtained from tissues surrounding necrotic lesions in the cortex of the roots and crown. Based on morphological characteristics and DNA sequencing of histone 3 and the translation elongation factor 1α gene, isolates were identified as one of seven species, Ilyonectria vredehoekensis, Ilyonectria robusta, Ilyonectria venezuelensis, Ilyonectria europaea, Dactylonectria torresensis, or Dactylonectria novozelandica. Pathogenicity tests with isolates from each species, excluding I. europaea and D. novozelandica whose isolates were lost due to contamination, confirmed that the four species tested can produce black foot disease symptoms in Andean blackberry. This is the first report of Dactylonectria and Ilyonectria species causing black foot disease of Andean blackberry. View Full-Text
Keywords: Cylindrocarpon-like anamorphs; root rot; soilborne pathogens; wilt Cylindrocarpon-like anamorphs; root rot; soilborne pathogens; wilt
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Sánchez, J.; Iturralde, P.; Koch, A.; Tello, C.; Martinez, D.; Proaño, N.; Martínez, A.; Viera, W.; Ayala, L.; Flores, F. Dactylonectria and Ilyonectria Species Causing Black Foot Disease of Andean Blackberry (Rubus Glaucus Benth) in Ecuador. Diversity 2019, 11, 218.

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