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Wyszukujesz frazę "Petrova, M.I." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Micropropagation studies and antioxidant analysis of the endangered plants of Bulgarian yellow gentian (Gentiana lutea L.)
Autorzy:
Petrova, M.I.
Zayova, E.G.
Dimitrova, L.I.
Geneva, M.P.
Miladinova-Georgieva, K.D.
Powiązania:
https://bibliotekanauki.pl/articles/12687267.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
yellow gentian
Gentiana lutea
herbal plant
medicinal plant
endangered plant
micropropagation
seed germination
plant growth regulator
antioxidant
antioxidant analysis
Opis:
In order to develop an efficient micropropagation system, it is essential to establish the appropriate concentration of growth regulators for seed germination, shoot formation and rooting. Nodal segments from in vitro obtained seedlings of Gentiana lutea L. were cultured in vitro in Murashige and Skoog’s medium supplemented with BAP, Thidiazuron and Zeatin (0.5, 1.0 and 2.0 mg L−1). A maximum number of shoots with the highest height was recorded at 2.0 mg L−1 BAP. For further optimization of the process, we used nutrient media containing BAP and Zeatin with a combination of low concentration of Indoleacetic acid. MS medium containing 2.0 mg L−1 Zeatin and 0.2 mg L−1 IAA resulted in maximum numbers of shoots 94.3) with shoot height 2.5 cm. The multiple plants were successfully ex vitro acclimatized with 65% survival. The presence of growth regulators (2.0 mg L−1 Zeatin and 0.2 mg L−1 IAA) in the nutrient media resulted in an effective antioxidant activity in G. Lutea determined by the low molecular antioxidant metabolites such as phenols and flavonoids and activities of antioxidant enzymes – catalase, ascorbate peroxidase, guaiacol peroxidase, and superoxide dismutase. The described protocol allows the establishment of numerous micropropaged plants of rare and endangered G. lutea.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 3; 71-78
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Macromycetes in the Pirin Mts (SW Bulgaria)
Autorzy:
Denchev, C.M.
Fakirova, V.I.
Gyosheva, M.M.
Petrova, R.D.
Powiązania:
https://bibliotekanauki.pl/articles/67341.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
macromycete
Pirin Mountains
Bulgaria
fungal diversity
Pirin National Park
Opis:
This paper attempts to compile available and unpublished data on the macromycetes of the Pirin Mts. The total number of currently known species is 350, including 34 ascomycetes and 316 basidiomycetes. Among them, 60 species are reported for the first time for the Pirin Mts, including Inocybe pisciodora which is a new record for Bulgaria.The species composition, ecological-trophic structure, and economically important edible fungi are briefly discussed. A list of 25 macroscopic fungi of conservation significance for the mycota of this mountain, evaluated with the recent IUCN criteria, is given, including 4 Critically Endangered, 9 Endangered, 7 Vulnerable, and 5 Near Threatened species.
Źródło:
Acta Mycologica; 2007, 42, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of way of life and environment on the prevalence of Chlamydia felis in cats as potentional sources of infection for humans
Autorzy:
Halanova, M.
Petrova, L.
Halan, M.
Trbolova, A.
Babinska, I.
Weissova, T.
Powiązania:
https://bibliotekanauki.pl/articles/2083221.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
Chlamydia felis
cat
prevalence
zoonosis
PCR
public health
Opis:
Introduction and objectives. Chlamydia (C.) felis can cause infection which may be associated with conjunctivitis and/or respiratory tract disease, particularly in kittens, but could also be the cause of the disease in adult cats. Infection is more common in multi-cat environments. The zoonotic potential of C. felis appears low, but exposure to this microorganism is possible by handling the affected cats, by contact with their aerosol, and also via fomites. Materials and method. In the study, 140 cats of various breeds from Košice region in Slovakia were studied. Conjunctival samples were obtained from 71 clinically healthy cats (50.7%) and 69 cats with clinical signs of conjunctivitis and upper respiratory tract impairment (49.3%). Cats were divided into 4 groups according to breed and type of environment in which they lived. In the 1st group were cats kept inside only (n=33), in the 2nd group, free-roaming cats (n=50), the 3rd group comprised stray cats, taken from the streets (n=28), and the 4th group included cats kept in shelters or deposit devices (n=29). Molecular method PCR and DNA sequencing was used as the diagnostic method. Results. Overall positivity was 17.1%. Of the 24 positive cats, the highest positivity was detected in the population of stray cats (35.7%) and shelter cats (31%). In the group of free-roaming cats, 10% had positivity. No positive animals were detected in the group of cats kept inside only. It was also found that the risk of C. felis in cats with clinical signs of disease was more than 7-fold higher than in cats without clinical signs of conjunctivitis and respiratory tract. Conclusion. The obtained results show that cats, especially stray and shelter cats, can be important sources of feline chlamydiosis, and due to their close contact with people they can present a risk for transmission.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 2; 222-226
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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