|
Pak. J. Bot., 47(1): 341-345, 2015. |
Back to Contents | ||||
|
|
Updated: 24-02-15 | ||||
|
|
DEVELOPMENTAL AND MORPHOLOGICAL STUDIES OF THE SUSPENSOR AND COLEORHIZAE IN SOME TAXA OF THE SUBFAMILY MIMOSOIDEAE (FABACEAE)
CHUAN QI SHI, MEI LIU*, XIN XIN ZHANG, XIN YU CHENG AND CHEN WANG
Abstract: The embryo development of Mimosa pudica and the seedling development of Acacia farnesiana, Albizzia julibrissin, Leucaena glauca and Mimosa pudica were studied by wax method in this paper. The results showed that M. pudica has a suspensor composed of about ten cells which degenerate and integrate into the embryo proper during the cotyledons development. The coleorhiza in M. pudica is from the residual suspensor cells and the cells produced by periclinal and anticlinal divisions of the meristematic cells in the embryo development. The coleorhiza in the four studied taxa is broken by the elongation of the primary root, withdraws and finally falls off during the seedling development.
Key words: Morphological studies, Suspensor, Coleorhizae, Mimosoideae (Fabaceae).
Harbin Normal University, College of Life Science and Technology, Key Laboratory of Molecular Cytogenetic and Genetic Breeding of Heilongjiang Province, 150025 Harbin, P.R. China *Correspondence author’s e-mail: m.r.liu@126.com; Tel: +86 451 8806 0576; Fax: +86 451 8806 0575 |
||||
|
|
|||||
| Back to Contents |
|
Back to Contents | |||
|
|
|||||