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Phyllosticta citricarpa (Guignardia citricarpa), the causative agent of citrus black spot

Josep Armengol Fortí
Mediterranean Agroforestry Institute
Polytechnic University of Valencia

Phyllosticta citricarpa (Guignardia citricarpa), the causative agent of citrus black spot
Josep Armengol Fortí
Mediterranean Agroforestry Institute
Polytechnic University of Valencia

Phyllosticta citricarpa (McAlpine) Van der Aa (Teleomorph: Guignardia citricarpa Kiely) is the causative agent of citrus black spot, and affects most of the citrus species cultivated.
It is an ascomycete fungus that produces sexual spores (ascospores) in fruiting bodies (pseudothecia) that develop in fallen leaves, which comprise the primary inoculum for infection. Secondary infection cycles are caused by asexual spores (conidia), that appear in fruiting bodies (pycnidia), which can form on lesions on fruits and shoots affected by the disease. 
P. citricarpa affects the foliage and fruits, but its significant economic impact is primarily due to the depressed necrotic lesions that appear on the rind, from which the disease takes its name. 
P. citricarpa is not present in the European Union and is a quarantine fungus under EU legislation (Directive 2000/29/EC). Therefore, citrus fruit imports are inspected to detect the pathogen, according to specific detection and identification protocols using morphological and molecular techniques. This presentation will describe the methodology and challenges of identifying the pathogen.

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In accordance with the Organic Law on the Protection of Personal Data 15/1999, of 13 December, Promotora de Exportaciones Catalanas SA (hereinafter PRODECA), whose address is Gran Via de les Corts Catalanes, 620, principal, 08007 Barcelona, with tax reg. no. NIF A58241316, declares that the images contained on the website www.smartfruitcongress.cat are included in a file belonging to PRODECA. The purpose of this file is the promotion, via its website, of the activities conducted by PRODECA – SmartfFruit IPM International Congress.

PRODECA guarantees that you may, at any time, exercise your right to access, rectify, cancel or oppose by writing to the aforesaid postal address, using the reference "PROTECCIÓN DE DATOS - SMARTFRUIT", or to the email address smartfruitcongress@smartfruitcongress.cat.

Specifically, to correctly exercise these rights you must clearly provide the following items in that communication:
- Name, surname(s) and photocopy of National Identity Document or Passport.
- Statement of the purpose of the request.
- Address for notification purposes.
PRODECA also declares that it reserves the right to delete from its website any content that it considers violates current and applicable legislation.

D’acord amb l’article 17.1 de la Llei 19/2014, la ©Generalitat de Catalunya permet la reutilització dels continguts i de les dades sempre que se'n citi la font i la data d'actualització i que no es desnaturalitzi la informació (article 8 de la Llei 37/2007) i també que no es contradigui amb una llicència específica.