@ARTICLE{TreeBASE2Ref28913,
author = {Tadeusz Kowalski and Wojciech Kraj and Bartłomiej Bednarz and Robert Rossa},
title = {The association of Boeremia lilacis with necrotic lesions on shoots and leaf petioles and its pathogenicity towards Fraxinus excelsior.},
year = {2018},
keywords = {ash dieback, Fraxinus excelsior, Boeremia lilacis, pathogenicity assay},
doi = {},
url = {http://},
pmid = {},
journal = {European Journal of Plant Pathology},
volume = {},
number = {},
pages = {},
abstract = {This paper reports the results of the study on the new type of necrotic lesion observed
on epicormic shoots and leaf petioles of Fraxinus excelsior showing ash decline
symptoms in stands of the Miech?w Forest District, southern Poland. The performed
symptom analysis included: shape and size of necroses, discoloration of necrotic
tissue and the occurrence of fungal fructification. The same species of fungus, which
was initially identified as Boeremia (Phoma) exigua, was isolated from 97% of
epicormic shoots and from 82% of leaf petioles. However, detailed morphological and
physiological (NaOH test) analyses and combined ITS, ACT, TUB and EF1-α
phylogeny proved these isolates to belong to Boeremia lilacis, the species known so
far as Syringa vulgaris pathogen occurring occasionally also on Forsythia hybrids or
Philadelphus. Fraxinus excelsior is reported for the first time as a host for this fungus.
To clarify the possible role of B. lilacis in development of necrotic lesions on ash, ten
randomly selected isolates, with detailed molecular characteristics known, were tested
for their pathogenicity toward young F. excelsior plants using the method of artificial
wound inoculation under field conditions. The isolates used in the test caused tissue
necroses on all 60 inoculated shoots and all 60 inoculated leaf petioles. Necrotic
lesions developed as a result of artificial inoculation corresponded largely to the
symptoms following natural infections.}
}
Trees for Study 23420
Citation title:
"The association of Boeremia lilacis with necrotic lesions on shoots and leaf petioles and its pathogenicity towards Fraxinus excelsior.".
Study name:
"The association of Boeremia lilacis with necrotic lesions on shoots and leaf petioles and its pathogenicity towards Fraxinus excelsior.".
This study is part of submission 23420
(Status: Published).
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