Ayşe KAPLAN, Hanife İRİS

108143

Male and Female Gametophyte Development of Seseli resinosum (Apiaceae)

Anahtar Kelimeler:

Seseli resinosum, Apiaceae, female gametophyte, male gametophyte

Male and Female Gametophyte Development of Seseli resinosum (Apiaceae)

The male and female gametophyte development in Seseli resinosum Freyn et Sint were studied with alight microscope. Anther wall development follows the dicotyledonous type: epidermis, endothecium, middle layer, and tapetum. The tapetum is secretory andthe tapetal cells are two-, three- and four-nucleate. The microspore tetrads are tetrahedral and isobilateral,and pollen grains are shed during a three cellular stage. The mature ovule is anatropous, tenuinucellar and unitegmic. A funicular obturator is present, and the hypostase is absent. The nucellarepidermis is one layered.Absorption of the nucellus occurs in four-nucleate embryo sac. A linear megaspore tetrad is formed, and the megaspore on the chalazal side remains active. The functional megaspore produces a seven-celled embryosac corresponding to the Polygonumtype. The embryo sac formation is monosporic
Keywords:

Seseli resinosum, Apiaceae, female gametophyte, male gametophyte,

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Journal of Applied Biological Sciences-Cover
  • ISSN: 1307-1130
  • Yayın Aralığı: 6
  • Başlangıç: 2007
  • Yayıncı: Nobel Bilim ve Araştırma Merkezi
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