Ultrastructure of microsporogenesis and microgametogenesis in Campsis radicans (L.) Seem. (Bignoniaceae)

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dc.authoridKonyar, Sevil Tütüncü/0000-0002-0737-7818;
dc.authorwosidKonyar, Sevil Tütüncü/F-6708-2013
dc.authorwosidKonyar, Sevil Tütüncü/AAT-6279-2020
dc.contributor.authorKonyar, Sevil Tutuncu
dc.date.accessioned2024-06-12T11:16:52Z
dc.date.available2024-06-12T11:16:52Z
dc.date.issued2014
dc.departmentTrakya Üniversitesien_US
dc.description.abstractIn the present study, microsporogenesis, microgametogenesis and pollen wall ontogeny in Campsis radicans (L.) Seem. were studied from sporogenous cell stage to mature pollen using transmission electron microscopy. To observe the ultrastructural changes that occur in sporogenous cells, microspores and pollen through progressive developmental stages, anthers at different stages of development were fixed and embedded in Araldite. Microspore and pollen development in C. radicans follows the basic scheme in angiosperms. Microsporocytes secrete callose wall before meiotic division. Meiocytes undergo meiosis and simultaneous cytokinesis which result in the formation of tetrads mostly with a tetrahedral arrangement. After the development of free and vacuolated microspores, respectively, first mitotic division occurs and two-celled pollen grain is produced. Pollen grains are shed from the anther at two-celled stage. Pollen wall formation in C. radicans starts at tetrad stage by the formation of exine template called primexine. By the accumulation of electron dense material, produced by microspore, in the special places of the primexine, first of all protectum then columellae of exine elements are formed on the reticulate-patterned plasma membrane. After free microspore stage, exine development is completed by the addition of sporopollenin from tapetum. Formation of intine layer of pollen wall starts at the late vacuolated stage of pollen development and continue through the bicellular pollen stage.en_US
dc.description.sponsorshipScientific Research Fund of Trakya Universityen_US
dc.description.sponsorshipAuthor would like to thank Prof. Dr. Feruzan Dane for her valuable suggestions. Author also thanks the Scientific Research Fund of Trakya University for its financial support, and Scientific Research Center of the Anadolu University (AUBIBAM) for TEM studies.en_US
dc.identifier.doi10.1007/s00606-013-0883-x
dc.identifier.endpage320en_US
dc.identifier.issn0378-2697
dc.identifier.issn2199-6881
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-84893647884en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage303en_US
dc.identifier.urihttps://doi.org/10.1007/s00606-013-0883-x
dc.identifier.urihttps://hdl.handle.net/20.500.14551/24487
dc.identifier.volume300en_US
dc.identifier.wosWOS:000330827000012en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Wienen_US
dc.relation.ispartofPlant Systematics And Evolutionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectUltrastructureen_US
dc.subjectMicrosporogenesisen_US
dc.subjectMicrogametogenesisen_US
dc.subjectSporoderm Ontogenyen_US
dc.subjectCampsisen_US
dc.subjectBignoniaceaeen_US
dc.subjectCaesalpinia-Japonica Leguminosaeen_US
dc.subjectPollen Wall Developmenten_US
dc.subjectExine Developmenten_US
dc.subjectCell-Wallen_US
dc.subjectOntogenyen_US
dc.subjectSporodermen_US
dc.subjectActivationen_US
dc.subjectInitiationen_US
dc.subjectCytoplasmen_US
dc.subjectProteinsen_US
dc.titleUltrastructure of microsporogenesis and microgametogenesis in Campsis radicans (L.) Seem. (Bignoniaceae)en_US
dc.typeArticleen_US

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