Pak. J. Bot., 47(6): 2301-2308, 2015.

REPRODUCTIVE CHARACTERISTICS OF THREE BAMBOO SPECIES

SHU-GUANG WANG1, XIAO-LAN PU1, SHU-YAN LIN2 AND YU-LONG DING2*

1School of Life Science, Southwest Forestry University, Kunming, Yunnan 650224, P.R. China;

2Bamboo Research Institute, Nanjing Forestry University, Nanjing, Jiangsu 210037, P.R. China 

Corresponding author e-mail: ylding@vip.163.com. Tel: +86-25-85427787

Abstract: Most bamboo species seldom flower. We gathered the pseudospikelets of Dendrocalamus giganteus, Neosinocalamus affinis and Bambusa sinospinosa, to compare the differences in their structures and developmental processes. Selfpollination was observed in some florets of N. affinis. Five types of abortions were summarized in the three flowering bamboo species. D.giganteus was the typical male sterility due to the degeneration of all microspores in all anthers. The developmental characteristics of reproductive organs of the three bamboo species were the same. Besides, not all endothecium of both D. giganteus and B. sinospinosa became fibrous. There are more antipodal cells in mature embryo sac of D. giganteus than in that of B. sinospinosa.

Key words: Anther wall development, Male gametogenesis, Abortion, Difference.