Cytological and cytoembryological studies on Paeonia tenuifolia L.

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dc.authorscopusid8577382800
dc.contributor.authorDane F.
dc.date.accessioned2024-06-12T10:29:23Z
dc.date.available2024-06-12T10:29:23Z
dc.date.issued1997
dc.description.abstractThe cytology and cytoembryology of Paeonia tenuifolia L. (Paeoniaceae) at Ortakçi Village near Edirne during the years 1989-1991 are considered in this study. Chromosome counts were done on adventive roots, and the results were found to be 2n=10. In the karyotype, 3 median (M), 1 submedian (SM) and 1 subterminal (ST) chromosome pairs were found, in two of which SAT-chromosomes were detected. The anther wall of P. tenuifolia consists of an epidermis , a 1-3 layered endothecium, 1-2 middle layers and a 1-2 layered tapetum. In the secretory tapetum, normal mitosis and the "sticky" type of division were observed. In most microspore mother cells, the course of meiosis is regular. In some cells irregularities were observed, including chromosome bridges, univalent and fragments. Microspore tetrads are isobilateral and tetrahedral, polen grains are tricalporate and are shed at the 2 celled stage. In rare cases, polyspory and multinucleate pollen grains were observed. The course of meiosis in the megaspore mother cell is regular. The ovules are anatrapous, bitegmic and crassinucleate. The female archesporium is multicelled. The female gametophyte formed by the functioning chalazal megaspore is monosporic, of the Polygonum type, in the mature embryo sac, the egg apparatus, the normal appearence of the secondary nucleus and of the antipodal cells. The occurence of double and triple embryo sacs due to the further development of chalazal megaspores of double and triple tetrads was observed.en_US
dc.identifier.endpage303en_US
dc.identifier.issn1300-008X
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-5244249367en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage291en_US
dc.identifier.trdizinid24051en_US
dc.identifier.urihttps://search.trdizin.gov.tr/yayin/detay/24051
dc.identifier.urihttps://hdl.handle.net/20.500.14551/17735
dc.identifier.volume21en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofTurkish Journal of Botanyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLm; Megasporogenesis; Paeonia Tenuifolia L. Microsporogenesisen_US
dc.titleCytological and cytoembryological studies on Paeonia tenuifolia L.en_US
dc.typeArticleen_US

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