Vol. 58 No. 3 (2019)
New or Unusual Disease Reports

Characterization of Eutypa lata and Cytospora pistaciae causing dieback and canker of pistachio in Italy

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  • Dalia AIELLO,
  • Giancarlo POLIZZI,
  • Giorgio GUSELLA,
  • Alberto FIORENZA,
  • Vladimiro GUARNACCIA
Dalia AIELLO
Dipartimento di Agricoltura, Alimentazione e Ambiente, sezione Patologia Vegetale, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Giancarlo POLIZZI
Dipartimento di Agricoltura, Alimentazione e Ambiente, sezione Patologia Vegetale, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Giorgio GUSELLA
Dipartimento di Agricoltura, Alimentazione e Ambiente, sezione Patologia Vegetale, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Alberto FIORENZA
Dipartimento di Agricoltura, Alimentazione e Ambiente, sezione Patologia Vegetale, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Vladimiro GUARNACCIA
DiSAFA, University of Torino, Largo Paolo Braccini, 2, 10095 Grugliasco, TO, Italy
DOI: https://doi.org/10.14601/Phyto-10880

Published 2019-12-30

Keywords

  • Pathogenicity,
  • molecular analysis,
  • disease symptoms,
  • Pistacia vera

How to Cite

[1]
D. AIELLO, G. POLIZZI, G. GUSELLA, A. . FIORENZA, and V. GUARNACCIA, “Characterization of Eutypa lata and Cytospora pistaciae causing dieback and canker of pistachio in Italy”, Phytopathol. Mediterr., vol. 58, no. 3, pp. 699–706, Dec. 2019.
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Abstract

During the winter of 2017, dieback and canker symptoms were observed on pistachio (Pistacia vera) in two orchards in the Bronte area, Catania Province, Sicily, Southern Italy. Two different fungi were consistently isolated from infected tissues. Morphological observations and multi-locus phylogenies using five genomic loci (ITS, act, rpb2, tef1 and tub2) identified these fungi as Cytospora pistaciae and Eutypa lata. Pathogenicity tests on 5-y-old potted plants of P. vera grafted on terebinth (P. terebinthus) reproduced similar symptoms as those observed in nature, and Koch’s postulates were fulfilled for these two pathogens. This study is the first to report dieback and canker diseases of pistachio caused by C. pistaciae and E. lata in Italy.

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