Microsporogenesis, megasporogenesis and embryo sac development of Ananas comosus (L.) merr.
1994
Zheng Yumei | Wang Shimao (South China Agricultural Univ., Guangzhou (China). Dept. of Agrobiology)
This paper reports studies on the microsporogenesis, megasporogenesis and embryo sac development of Ananas comosus (L.) merr. The cytokinesis of the microspore mother cell in meiosis was of the successive type. The arrangement of microspores in the tetrads was zygomorphic or decussate. The anatropous ovule was bitegminous and crassinucellate. The megaspore mother cell gave rise to a linear tetrad. The chalazal megaspore became a functional megaspore. The development of the embryo sac conformed the polygonum type
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