Effects of Exogenous Cytokinins on Spore Germination and Gametophyte Morphogenesis of Dryopteris filix-mas (L.) Schott in vitro Culture
| Autor: | L.M. Babenko, K.O. Romanenko, I.V. Kosakivska, P. O. Romanenko, V. A. Negretsky, O. V. Vasheka, V. M. Minarchenko |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Gametophyte fungi Sporophyte Archegonium Cell Biology Biology 01 natural sciences Agricultural and Biological Sciences (miscellaneous) Thallus 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology chemistry Antheridium Botany Genetics Spore germination Kinetin Zeatin 010606 plant biology & botany |
| Zdroj: | Cytology and Genetics. 53:192-201 |
| ISSN: | 1934-9440 0095-4527 |
| DOI: | 10.3103/s0095452719030034 |
| Popis: | The impact of exogenous cytokinins (kinetin, zeatin, 6-benzylaminopurine, and N6-2-isopentenyladenine) on the pattern of Dryopteris filix-mas (L.) Schott spore germination, gametophyte growth and morphology in vitro have been studied. It was found that all studied cytokinins significantly retarded spore germination, inhibited gametophyte growth, caused deformations and decrease in the thallus size, and suppressed the development of reproductive structures and sporophyte growth at the concentration of 10–5 М. The reduction of the hormone concentration to 10–8 М stimulated the gametophyte development, induced cell divisions, particularly in the apical zone, due to which some of thalli were deformed, promoted the production of rhizoids, affected the formation of antheridia and archegonia, and slowed the sporophyte development. |
| Databáze: | OpenAIRE |
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