Temat: pathogenic variation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On the geographic variation of Ciboria batschiana (Zopf) Buchwald, the main pathogenic fungus on acorns of Quercus robur and Q.petraea in Europe
Autorzy:: Schroder, T
Powiązania:: https://bibliotekanauki.pl/articles/41225.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: seed-borne fungi
seed storage
geographic variation
Ciboria batschiana
acorn
pathogenic fungi
fungi
Quercus robur
Quercus petraea
Opis:: Mycelial growth of the pathogenic fungus Ciboria batschiana (Zopf) Buchwald was examined at nine temperature levels between -3°C and +35°C using pure cultures of the fungus from eleven different provenances located in Germany, Poland, the Czech Republic and Slovenia. The fungus was isolated mainly from cotyledons of acorns of the oak species Quercus robur L. and Quercus petraea (Matt.) Liebl. Even at -3°C the mycelium of the fungus grew well. There were significant differences between the provenances in respect to growth rate and temperature tolerance, especially at low temperatures.
Źródło:: Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Pathogenicity and quantitative resistance in Mediterranean durum and bread wheat cultivars of Syrian origin towards Fusarium head blight agents under controlled conditions
Autorzy:: Sakr, N.
Powiązania:: https://bibliotekanauki.pl/articles/2084875.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Fusarium head blight (FHB)
pathogenic variation
Triticum aestivum
wheat resistance
Triticum durum
Opis:: Although Syrian high-yielding wheat cultivars grown under Mediterranean conditions include acceptable levels of resistance to biotic constraints, little is known about their susceptibility to Fusarium head blight (FHB), a harmful disease of wheat cultivation worldwide. The capacity of 16 fungal isolates of four FHB species to confer the disease on spikes and spikelets of six widely grown old and modern Syrian durum and bread wheat cultivars with known in vitro quantitative resistance to FHB was evaluated. Quantitative traits were visually assessed using spray and point inoculations for determining disease development rates, disease incidence (DI) and disease severity (DS) under controlled conditions. Differences in pathogenicity and susceptibility among wheat cultivars were observed, emphasizing the need for breeders to include aggressive isolates or a mixture of isolates representative of the FHB diversity in their screenings for selection of disease resistant cultivars. Bread wheat cultivars showed lower levels of spike and spikelet damage than durum cultivars regardless of the date of cultivar release. Overall, the six wheat cultivars expressed acceptable resistance levels to initial fungal infection and fungal spread. Quantitative traits showed significant correlation with previous standardized area under disease progress curve (AUDPCstandard) data generated in vitro. Thus, the predictive ability of AUDPCstandard appears to be crucial in assessing pathogenicity and resistance in adult wheat plants under controlled conditions. While in the Mediterranean countries the risk of disease is progressively increasing, the preliminary data in this report adds to our knowledge about four FHB species pathogenicity on a Syrian scale, where the environment is quite similar to some Mediterranean wheat growing areas, and show that Syrian cultivars could be new resistant donors with favorable agronomical characteristics in FHB-wheat breeding programs.
Źródło:: Journal of Plant Protection Research; 2019, 59, 4; 451-464
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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