J Integr Plant Biol. ›› 1997, Vol. 39 ›› Issue (1): -.

• Research Articles •    

Ultrastructural Observations on Nuclear Matrix in the Pollen Mother Cells of Lily

Xu Tao, Zhang Xiao-hong, Nie Xiu-wan and Zheng Guo-chang (Cheng K. C)   

Abstract: The nuclear matrix (NM) of pollen mother cells (PMC) of Lilium davidii var. willmottiae (Wilson) Roffill was studied using selective extraction, embeddment-free electron microscopy and whole mount cell preparation. A complex internal substructure, which is similar to the nuclear matrix in vertebrate cells, was observed in the nucleus of PMCs at prophase I . These nuclear matrices, comprising delicate protein filaments, spreaded over the nuclear region. The diameters of NM filaments were in the range of 5 - 15 nm. Nueleoli and chromosomes were found to be connected with the NM filament network. The NM was proposed to offer a framework for the topological change of chromatin/chromosome, and might be involved in the construction of the scaffold of metophase chromosome.

Key words: Lilium davidii var. willmottiae, Pollen mother cell, Nuclear matrix, Ultrastruture

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2022 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
备案号:京ICP备16067583号-22