TY - JOUR
T1 - Identity and pathogenicity of Botryosphaeriaceae and Diaporthaceae from Juglans regia in Chile
AU - Luna, Israel Jimenez
AU - Besoain, Ximena
AU - Saa, Sebastian
AU - Peach-Fine, Elena
AU - Morales, Fabiola Cadiz
AU - Riquelme, Natalia
AU - Larach, Alejandra
AU - Morales, Javiera
AU - Ezcurra, Exequiel
AU - Ashworth, Vanessa E.T.M.
AU - Rolshausen, Philippe E.
N1 - Publisher Copyright:
© 2022. I. Jimenez Luna, X. Besoain, S. Saa, E. Peach-Fine, F. Cadiz Morales, N. Riquelme, A. Larach, J. Morales, E. Ezcurra, V.E.T.M. Ashworth, P.E. Rolshausen. This is an open access, peer-reviewed article published by Firenze University Press (http://www.fupress.com/pm) and distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - English walnut (Juglans regia) has become an important crop in Chile, representing 11.5% of the total area of fruit trees, surpassed only by grapevine. As the Chilean walnut industry rapidly expands, young orchards are at risk from the emergence of new fungal diseases. Botryosphaeriaceae and Diaporthaceae fungi have been recognized as main causes of wood diseases in walnut, with symptoms of dieback, canker, and blight. In winter 2017, samples were collected from different orchards in Valparaíso and Maule regions. Fungal isolates recovered were cultured, characterized morphologically, and identified using DNA sequence analyses. Three species (Neofusicoccum parvum, Diplodia mutila, Diplodia seriata) were characterized in Botryosphaeriaceae and two (Diaporthe cynaroidis, Diaporthe australafricana) in Diaporthaceae. Pathogenicity tests showed that N. parvum was the most aggressive species to walnut. This study confirmed the presence of pathogenic Botryosphaeriaceae and Diaporthaceae in J. regia that should be considered an increasing risk for the growing Chilean walnut industry.
AB - English walnut (Juglans regia) has become an important crop in Chile, representing 11.5% of the total area of fruit trees, surpassed only by grapevine. As the Chilean walnut industry rapidly expands, young orchards are at risk from the emergence of new fungal diseases. Botryosphaeriaceae and Diaporthaceae fungi have been recognized as main causes of wood diseases in walnut, with symptoms of dieback, canker, and blight. In winter 2017, samples were collected from different orchards in Valparaíso and Maule regions. Fungal isolates recovered were cultured, characterized morphologically, and identified using DNA sequence analyses. Three species (Neofusicoccum parvum, Diplodia mutila, Diplodia seriata) were characterized in Botryosphaeriaceae and two (Diaporthe cynaroidis, Diaporthe australafricana) in Diaporthaceae. Pathogenicity tests showed that N. parvum was the most aggressive species to walnut. This study confirmed the presence of pathogenic Botryosphaeriaceae and Diaporthaceae in J. regia that should be considered an increasing risk for the growing Chilean walnut industry.
KW - Diaporthe
KW - Diplodia
KW - Host range
KW - Neofusicoccum
KW - Walnut
KW - Wood canker
UR - http://www.scopus.com/inward/record.url?scp=85129765413&partnerID=8YFLogxK
U2 - 10.36253/phyto-12832
DO - 10.36253/phyto-12832
M3 - Article
AN - SCOPUS:85129765413
SN - 0031-9465
VL - 61
SP - 79
EP - 94
JO - Phytopathologia Mediterranea
JF - Phytopathologia Mediterranea
IS - 1
ER -