Structure of reproductive apparatus of Gracilaria/Gracilariopsis lemaneiformis (Gracilariaceae,Rhodophyta)  

作　　者：XU Di1, ZHU JianYi2, HE Yang1, CHENG XiaoJie1, ZHANG WenYan1 & ZHANG XueCheng1 1 College of Life Sciences, Ocean University of China, Qingdao 266003, China 2 Department of Biology, Changshu Institute of Technology, Changshu 215500, China 

出　　处：《Science China(Life Sciences)》2008年第12期1137-1143,共7页中国科学（生命科学英文版）

基　　金：Supported by the National Natural Sciences Foundation of China (Grant No. 40606034);the National High-Tech Research and Development Program of China (Grant No. 2006AA10A413)

摘　　要：Reproductive apparatus of Gracilaria/Gracilariopsis lemaneiformis collected from Qingdao city were studied with a light and a transmission electron microscope. The special superficial arrangement of spermatangium for this species was clearly observed, and the ultrastructure of spermatangial devel-opment revealed the similar cytodynamic pattern followed by all the Gracilariaceae members devel-oped from spermatangial mother cells to spermatangium. The female reproductive apparatus before fertilization was also observed and trichogyne was found protruding above the cortex, contrary to the earlier reports. Tetrasporangium was formed by an outer cortical cell and the tetraspores became spherical and expended after being released.Reproductive apparatus of Gracilaria/Gracilariopsis lemaneiformis collected from Qingdao city were studied with a light and a transmission electron microscope. The special superficial arrangement of spermatangium for this species was clearly observed, and the ultrastructure of spermatangial devel-opment revealed the similar cytodynamic pattern followed by all the Gracilariaceae members devel-oped from spermatangial mother cells to spermatangium. The female reproductive apparatus before fertilization was also observed and trichogyne was found protruding above the cortex, contrary to the earlier reports. Tetrasporangium was formed by an outer cortical cell and the tetraspores became spherical and expended after being released.

关 键 词：Gracilaria/Gracilariopsis LEMANEIFORMIS ultrastructure REPRODUCTIVE apparatus 

分 类 号：Q944[生物学—植物学]