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    Wyświetlanie 1-3 z 3
    Tytuł:
    Identification of apomixis in the Kentucky bluegrass (Poa pratensis L.) using auxin test
    Autorzy:
    Niemann, J.
    Wojciechowski, A.
    Janowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/56744.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    identification
    apomixis
    Kentucky bluegrass
    Poa pratensis
    auxin test
    embryo sac
    endosperm
    ovule
    parthenogenesis
    Opis:
    The effect of auxin treatment on the formation of apomictic – endospermless grains in Poa pratensis was investigated in the study. Four polish cultivars: Skiz, Eska 46, Alicja, Ani as well as six breeding lines: POB 13, SK-W-33, SKW-15, SKW-35A, SK-W-35A and SK-W-35B were tested by embryological methods to reveal the reproduction pathway in greenhouse and field conditions. The obtained results showed that four genotypes, i.e. Alicja, Ani, Eska 46 and SK-W-35B are facultative apomictic and the other have formed seeds only on the apomictic way. In facultative apomicts it was found that in many cases both endospermless ovules containing embryo sacs with embryos or embryo sacs with well developed endosperm were formed. In the case of apomictic genotypes only endospermless seeds were observed.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The assessment of incompatibility and cross-compatibility in three populations of European globeflower (Trollius europaeus L.) by observing the pollen tubes growth
    Autorzy:
    Antkowiak, W.
    Niemann, J.
    Wojciechowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/56621.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    The European globeflower was shown to be highly self‐incompatible by flower bagging experiments, however, a very small degree of selfing was observed in natural populations. The present study is an attempt to evaluate the level of self-incompatibility (SI) in three Trollius europaeus populations from different sites of Poland and to assess a degree of cross-compatibility (CC) between these populations. The SI and CC of the globeflower populations were evaluated based on the pollen germination index (PGI). The observations of pollen grains germination and pollen tubes penetration were made in pistils after self- and diallel cross-pollination of globeflower plants. The pollination combinations which had the PGI equal or higher than 2 were regarded as compatible. Generally, the PGI after self-pollination of all globeflower population was over 2, indicating that they are self-compatible. Also, in two globeflower populations after cross-pollination the PGI was higher than 2 showing that there was cross-compatibility between plants of these two populations. However, the third population, from Biedrusko, was fully cross-incompatible.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2017, 86, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis and glycosyl composition of the exopolysaccharide isolated from submerged fermentation of Ganoderma lucidum CG144
    Autorzy:
    Rubel, R.
    Freire dos Santos, L.
    Stutz Dalla Santa, H.
    Porto de Souza Vandenberghe, L.
    Wojciechowski, A.L.
    de Carvalho, J.C.
    Habu, S.
    Destefanis Vitola, F.M.
    Augur, C.
    Soccol, C.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/56735.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    glycosyl composition
    exopolysaccharide
    isolation
    submerged fermentation
    Ganoderma lucidum
    heteroglycan
    herbal medicine
    Chinese medicine
    Opis:
    The evaluation of glycosyl composition is an essential step to guide future research designs applied in bioactivity. In the same way, the unexplored potential bioactivity of exopolysaccharide from Ganoderma lucidum is huge. Therefore, this study investigated the glycosyl composition of the exopolysaccharide isolated from submerged fermentation of G. lucidum to serve as guide for future studies on bioactivity. Glycosyl content and composition were evaluated by combined GC/ MS of the TMS derivatives of the monosaccharide methyl glycosides produced from the sample by acidic methanolysis. Glycosyl composition analysis showed that the dominant carbohydrate component in all samples of exopolysaccharide isolated from submerged fermentation of G. lucidum CG 144 was glucose (58.1%), mannose (26.6%) and galactose (12.5%) which can be referred to as heteroglycan. These results suggest that this Ganoderma exopolysaccharide may be a new immunomodulatory agent.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2014, 83, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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