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Publikacje Pracowników Politechniki Lubelskiej

Publikacje Pracowników PL z lat 1990-2010

Publikacje pracowników Politechniki Lubelskie z lat 1990-2010 dostępne są jak dotychczas w starej bazie publikacji
LINK DO STAREJ BAZY

MNiSW
50
Poziom II
Status:
Autorzy: Nykyforov Volodymyr V., Sakun Oksana A., Novokhatko Olga V., Shendryk Valeria S., Meixner Katharina, Cherepakha Anastasiia A., Omiotek Zbigniew, Kalimoldayeva Saltanat, Nuradilova Dina
Dyscypliny:
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Wersja dokumentu: Drukowana | Elektroniczna
Język: angielski
Strony: 171 - 182
Efekt badań statutowych NIE
Materiał konferencyjny: NIE
Publikacja OA: NIE
Abstrakty: angielski
The microcystin concentration in the biomass of blue-green algae, in which Microcystis aeruginosa (up to 90%) dominates, was determined. The concentration of microcystin (cyclopeptide algotoxin) in suspension varies between 3.25 and 3.48 mg/dm3. As a result of preliminary laboratory studies, the inhibitory (fungicidal) effect of microcystin for Phytophthora infestans, which is a causative agent of tomatoes late blight, was proven. A pure Phytophthora culture was isolated, on which further studies were carried out. The plants biotesting was carried out after processing them with a suspension of blue-green algae, taking into account the toxic effects of microcystin on living organisms and their ability to bioaccumulate. The biopesticidal (fungicidal) effect of microcystins was established. The degradation of Phytophthora isolates was recorded the day after the colony was treated with a suspension of blue-green algae. A pronounced inhibitory effect of microcystin on the development of late blight was also revealed, almost until the symptoms completely disappeared in the tomatoes, which were partially affected by late blight and grew under natural conditions. As a result of biotesting, it was found that the plants treated with microcystin are safe for eating, since the mortality of the test objects is not fixed. The research results can serve as the basis for a deeper and broader study of the properties and possibilities of using microcystins as biopesticides in the agricultural production. In the experiment (five lines: control and application of 10, 25, 50 and 100 mg cells suspension/1 g of cultivation medium), the arithmetic mean of the chlamydospores number of Phytophtora nightshade sprouted in the Petri dishes on the oat-pea agarized medium was recorded.