Agronomy journal, Vol. 79 No. 1-2, 2017.
Original scientific paper
https://doi.org/10.33128/ag.79.1-2.2
PHAEOACREMONIUM SPECIES IN GRAPEVINES WITH ESCA AND PETRI DISEASE SYMPTOMS
Dario Ivić
; Hrvatski centar za poljoprivredu, hranu i selo, Gorice 68b, Zagreb, Hrvatska
Zdravka Sever
; Hrvatski centar za poljoprivredu, hranu i selo, Gorice 68b, Zagreb, Hrvatska
Petra Pilipović
; Hrvatski centar za poljoprivredu, hranu i selo, Gorice 68b, Zagreb, Hrvatska
Ana Marija Čajkulić
; Savjetodavna služba, Virovitica
Bogdan Cvjetković
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Abstract
Fungi from the genus Phaeoacremonium are known to be among the causal agents of grapevine esca and esca-like diseases. From 2009 to 2014, 16 symptomatic samples of grapevine with esca or Petri disease symptoms were collected in Nadin (Petri disease symptoms), Kutjevo, Ilok, Buje and Vukomeričke Gorice (esca symptoms). Phaeoacremonium species were found in 13 samples. Perithecial stage (Togninia) was found in five samples, while only conidial stage was recorded in the other eight samples. Morphological analysis and phylogenetic analysis of ITS1-5.8S-ITS2 ribosomal DNA sequences showed that 11 isolates can be identified as Phaeoacremonium mortoniae, one isolate as P. aleophilum and one isolate as P. rubrigenum. Five isolates derived from perithecia found on grapevine wood were confirmed as Togninia fraxinopennsylvanica (P. mortoniae), T. minima (P. aleophilum) and T. rubrigena (P. rubrigenum). This is the first record of Phaeoacremonium
teleomorphs on grapevine in Croatia, which indicates that these causal agents of esca and esca-like diseases can reproduce both with conidia and ascospores.
Keywords
Phaeoacremonium; Togninia; esca; Petri disease
Hrčak ID:
186162
URI
Publication date:
28.8.2017.
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