Dane Feruzan
Department of Biology, Faculty of Arts and Sciences, Trakya University, 22030 Edime, Turkey.
Acta Biol Hung. 2006 Sep;57(3):339-54.
In this study anther wall, meiosis, sporogenesis and the development of female gametophytes of Bellevalia edirnensis were examined cytologically and histologically. The young anther wall consists of an epidermis, a single layered fibrous endothecium, 1-2 middle layers which disappear early, and a single-layered tapetum. In the glandular tapetum; normal mitosis, the "sticky" type of division and secondary nucleus divisions were observed. In most microspore mother cells the course of meiosis is regular. In some cells irregularities were observed including chromosome bridges and univalents. Cytokinesis is of the successive type and the tetrads are isobilateral. The ovules are anatrapous, bitegmic and crassinucellate. The micropyle is formed by the inner integument. The female archesporium is unicelled and directly functions as the megaspore mother cell. The female gametophyte formed by the functioning chalazal megaspore is monosporic, of the Polygonum type.
在本研究中，对埃迪尔内贝母（Bellevalia edirnensis）的花药壁、减数分裂、孢子发生及雌配子体发育进行了细胞学和组织学研究。幼嫩花药壁由表皮、单层纤维状的药室内壁、1 - 2层早期消失的中层和单层绒毡层组成。在腺质绒毡层中，观察到正常有丝分裂、“粘性”分裂类型及次生核分裂。多数小孢子母细胞减数分裂过程正常，部分细胞存在异常，包括染色体桥和单价体。胞质分裂为连续型，四分体为左右对称型。胚珠倒生、双珠被、厚珠心。珠孔由内珠被形成。雌性孢原细胞单细胞，直接起大孢子母细胞的作用。由功能大孢子形成的雌配子体为单孢型，属于蓼型。
