- Tytuł:
-
Eutypella parasitica - nowy patogen powodujący raki na pniach klonów (Acer spp.) w Polsce
Eutypella parasitica - a new pathogen causing cankers on Acer spp. trunks in Poland - Autorzy:
-
Kowalski, T.
Bednarz, B. - Powiązania:
- https://bibliotekanauki.pl/articles/987091.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
drzewa lesne
klon
Acer
fitopatologia lesna
czynniki chorobotworcze
grzyby
Ascomycota
Eutypella parasitica
porazenie drzew
nekrozy
zrogowacenia
zagrozenia fitosanitarne
ascomycota
canker
sycamore maple
field maple - Opis:
- The work concerned the ascomycetous fungus Eutypella parasitica, which for several decades has been present in North America, where it attacks various species of maple. In 2005, for the first time it was recorded in Europe, in Slovenia. Later on it was found in Austria, Croatia, Germany, Hungary and the Czech Republic. In 2016 for the first time the species was reported in Poland, in the Polish−Czech border region. The work includes fieldwork and laboratory research on disease symptoms and the causal pathogen. The research was conducted in August 2016 in the Ustroń Forest District. In 16 randomly selected stands, the health of Acer spp. trunks was analyzed, especially in terms of Eutypella parasitica infection. Of the 16 trees, where extensive necrosis and cankers were found, the material was collected for laboratory analyses. In the laboratory, the fruit bodies of fungi on necrotic lesions were examined and the fungi isolates were performed on 2% malt−agar extract. Identification of representative E. parasitica isolates was confirmed based on the ITS rDNA sequence. Within the 16 stands, where the maples were analyzed, individuals with symptoms of trunk infestation by E. parasitica were found in 8 stands. Based on in situ produced fruiting bodies and isolated cultures, the presence of E. parasitica was finally confirmed on 14 trunks, including 13 Acer pseudoplatanus trunks and one A. campestre. All cankers were located in the butt section of the trunk, below 3 meters, reaching from 21 to 252 cm in length. Fungal fruit bodies were present within the necrotic lesions. Morphological characteristics of asci, ascospores and colonies isolated on malt−agar extract are given. The phytosanitary risk for Acer pseudoplatanus and other maples is also discussed. Moreover the preliminary actions that should be taken by the foresters are indicated.
- Źródło:
-
Sylwan; 2017, 161, 08; 630-638
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł