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Wyszukujesz frazę "culture medium" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
The effect of culture medium formulation on Pinus nigra somatic embryogenesis
Autorzy:
Salaj, T.
Fraterova, L.
Carach, M.
Salaj, J.
Powiązania:
https://bibliotekanauki.pl/articles/41577.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
culture medium
formulation
Pinus nigra
European black pine
histology
conifer
plant growth regulator
somatic embryo
somatic embryogenesis
Opis:
The potential of immature zygotic embryos to produce embryogenic tissue was tested using culture media differed in inorganic salt composition as well as plant growth regulator content. Explants cultured on DCR as well as MLV media gave the highest initiation percentages with maximum values of 8.8% (MLV) to 10.4% (DCR). Plant growth regulators content (standard or reduced) had no profound effect on embryogenic tissue initiation. Somatic embryo maturation as well as germination was dependent on the cell line and salt composition of the medium. Plantlet regeneration occurred in three cell lines out of five tested. During the maturation process profound changes occurred in the internal organisation of somatic embryos such differentiation of root meristem in precotyledonary somatic embryos and formation of provascular strands in cotyledonary somatic embryos.
Źródło:
Dendrobiology; 2014, 71
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Induction of multi-nucleate microspores in anther culture of salix viminalis L.
Autorzy:
Wojciechowicz, M K
Kikowska, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/41619.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Salix viminalis
genotype
androgenesis
thermal factor
medium composition
stress response
thermal shock
anther culture
multinucleate microspore
male clone
mannitol
Kyo medium
microspore
ultrastructural analysis
initial microspore
Opis:
The aim of the work was to determine how the induction of androgenesis in selected genotypes of Salix viminalis is affected by thermal factors and medium composition. Anthers isolated from male clones of S. viminalis were pre-cultured at 4, 27 and 32°C for two to eight days in liquid Kyo medium with and without the addition of mannitol and on solid MS or WPM medium. The solid media were supplemented with different concentration of disaccharidesand various combinations of growth regulators including kinetin, 2iP, IAA and IBA. Multi-nucleate microspores indicative of androgenesis were observed in anthers pre-cultured for seven days at 4°C in liquid Kyo medium containing mannitol. The rate of androgenesis was higher when the anthers were transferred to solid modified MS medium containing high concentrations of sucrose and kinetin. In studied genotypes of basket willow early uninucleate microspores underwent sporophytic divisions. Ultrastructural observations showed differences in cellular arrangement of pre-stressed microspores. In Salix viminalis, microspores without starch grains and decreased number of lipid bodies were potentially androgenic cells.
Źródło:
Dendrobiology; 2009, 61; 55-64
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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