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    Wyświetlanie 1-3 z 3
    Tytuł:
    The influence of spring barley grain (Hordeum vulgare L.) infection by Bipolaris sorokiniana (Sacc.) Shoem. on the leaf infection and grain contamination by sterigmatocystin
    Autorzy:
    Cegiełko, M.
    Kiecana, I.
    Mielniczuk, E.
    Waśkiewicz, A.
    Bocianowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/11894206.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    spring barley
    grain
    plant disease
    plant infection
    leaf infection
    Bipolaris sorokiniana
    grain contamination
    mycotoxin
    sterigmatocystin
    Opis:
    Bipolaris sorokiniana is a dangerous pathogen of plants from Poaceae family. A secondary metabolite with carcinogenic properties produced by this fungus is sterigmatocystin. A field experiment with inoculation of the grain of 9 spring barley genotypes with B. sorokiniana No. 36 was carried out in the years 2012–2014 in the Zamość region. Field observations revealed leaf spot caused by B. sorokiniana in all studied genotypes. In 2012, values of the leaf infection index varied from 21.88 (Oberek) to 48.12 (Hajduczek), in 2013 from 25.31 (Skald, Oberek) to 50.00 (STH 7910) and in 2014 from 21.88 (Oberek) to 50.00 (Hajduczek). In the experimental combination with B. sorokiniana, colonies of this fungus in the years 2012–2014 accounted for: 81.22%, 93.11% and 71.78%, respectively, and in control combination: 40.06%, 32.26% and 33.72%, respectively. The chemical analysis of grain of 9 barley genotypes obtained from plants in an experimental combination with B. sorokiniana in 2014, revealed the presence of sterigmatocystin in the genotypes: Hajduczek, Kormoran, Stratus and STH 7910. The sterigmatocystin concentration ranged from 5.39 ng·g–1 (STH 7910) to 67.05 ng·g–1 (Hajduczek). A statistically significant correlation was found between the value of the leaf infection index and the concentration of sterigmatocystin in the grain.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 149-166
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Levels of fungi and mycotoxins in the samples of grain and grain dust collected from five various cereal crops in Eastern Poland
    Autorzy:
    Krysinska-Traczyk, E
    Perkowski, J.
    Dutkiewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/50801.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    nivalenol
    mycotoxin
    rye
    Polska
    grain
    corn
    dust
    fungi
    ochratoxin A
    Fusarium
    occupational exposure
    deoxynivalenol
    barley
    cereal
    farmer
    oat
    grain dust
    Opis:
    During combine harvesting of 5 various cereal crops (rye, barley, oats, buckwheat, corn) 24 samples of grain and 24 samples of settled grain dust were collected on farms located in the Lublin province of eastern Poland. The samples were examined for the concentration of total microfungi, Fusarium species, deoxynivalenol (DON), nivalenol (NIV), and ochratoxin A (OTA). Microfungi able to grow on malt agar were present in 79.2% of grain samples and in 91.7% of grain dust samples in the concentrations of 1.0-801.3 × 103 cfu/g and 1.5-12440.0 × 103 cfu/g, respectively. The concentration of microfungi in grain dust samples was signifi cantly greater than in grain samples (p<0.01). Fusarium strains were isolated from 54.2% of grain samples and from 58.3% of grain dust samples in the concentrations of 0.1-375.0 × 103 cfu/g and 4.0-7,700.0 × 103 cfu/g, respectively. They were found in all samples of grain and grain dust from rye, barley and corn, but only in 0-16.7% of samples of grain and grain dust from oats and buckwheat. DON was found in 79.2% of grain samples and in 100% of grain dust samples in the concentrations of 0.001-0.18 μg/g and 0.006-0.283 μg/g, respectively. NIV was detected in 62.5% of grain samples and in 94.4% of grain dust samples in the concentrations of 0.004-0.502 μg/g and 0.005-0.339 μg/g, respectively. OTA was detected in 58.3% of grain samples and in 91.7% of grain dust samples in the concentrations of 0.00039- 0.00195 μg/g and 0.00036-0.00285 μg/g, respectively. The concentrations of DON, total fusariotoxins (DON + NIV) and OTA were signifi cantly greater in grain dust samples than in grain samples (p<0.05, p<0.05, and p<0.001, respectively). The concentration of Fusarium poae in the samples of rye grain and dust was signifi cantly correlated with the concentrations of DON (p<0.05), NIV (p<0.01), and total fusariotoxins (p<0.05). Similarly, the concentration of Fusarium culmorum in the samples of barley grain and dust was signifi cantly correlated with the concentration of total fusariotoxins (p<0.05). A signifi cant correlation was also found between the concentration of total fungi grown on malt agar and the concentration of OTA (p<0.05). In conclusion, although the concentration of DON, NIV and OTA in the samples of grain dust collected from 5 various cereals on farms in eastern Poland was not large, the persistent presence of these mycotoxins in over 90% of examined samples poses a potential health risk of chronic respiratory intoxication for exposed grain farmers.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2007, 14, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porazenie wiech przez Fusarium poae [Peck] Wollenw. oraz zawartosc mikotoksyn w ziarnie owsa
    Infection of panicles with Fusarium poae [Peck] Wollenw. and mycotoxin content in oat grain
    Autorzy:
    Kiecana, I
    Mielniczuk, E
    Perkowski, J
    Golinski, P
    Powiązania:
    https://bibliotekanauki.pl/articles/27709.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    choroby roslin
    czynniki chorobotworcze
    Fusarium poae
    fuzarioza wiech owsa
    owies
    choroby grzybowe
    zawartosc mikotoksyn
    mikotoksyny
    ziarno
    grzyby chorobotworcze
    plant disease
    pathogenic factor
    panicle blight
    fusariosis
    oat
    fungal disease
    mycotoxin content
    grain
    pathogenic fungi
    Opis:
    Field experiments were performed during three years (1999, 2000 and 2001) to study fusariosis on oat panicles. The percentage of panicles with fusariosis symptoms ranged from 0,5 to 6%. Fusarium panicle blight was caused mainly by Fusarium avenaceum and F. poae. The experiment with panicles artifical infection of 12 genotypes of oat was performed in 2001. The panicles of oat were inoculated with F. poae strain nr 37, which caused a reduction in yield by 37%. In the infected kernels the following toxins were detected: nivalenol (from 0.06 to 2.18 mg·kg⁻¹), deoxynivalenol (from 0.02 to 0.47mg/kg⁻¹), T-2 toxin (from 0.02 to 0.71 mg·kg⁻¹), HT-2 toxin (from 0.03 to 0.59 mg·kg⁻¹), scirpentriol (from 0.06 to 1.98 mg·kg⁻¹).
    Przeprowadzone w latach 1999-2001 badania wykazały obecność w każdym sezonie wegetacji, wiech z objawami fuzariozy. Odsetek takich wiech wahał się od 0,5 do 6%. Główną przyczyną fuzariozy wiech owsa były gatunki Fusarium avenaceum i F. poae. W 2001 roku przeprowadzono także ścisłe doświadczenie polowe obejmujące 12 genotypów owsa, w którym wiechy sztucznie zakażano F. poae. W wyniku tych badań stwierdzono, że średnia obniżka plonu ziarna wynosiła 37%. Analiza chemiczna ziarniaków pozyskanych ze sztucznie zakażanych wiech, wykazała obecność w nich niwalenolu (od 0,06 do 2,18 mg·kg⁻¹), deoksyniwalenolu (od 0,02 do 0,47 mg·kg⁻¹), T-2 toksyny (od 0,02 do 0,71 mg·kg⁻¹), HT-2 toksyny (od 0,03 do 0,59 mg·kg⁻¹) oraz scirpentriolu (od 0,06 do 1,98 mg·kg⁻¹).
    Źródło:
    Acta Agrobotanica; 2005, 58, 2; 91-102
    0065-0951
    2300-357X
    Pojawia się w:
    Acta Agrobotanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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