spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Brawley, S. H.
Right arrow Articles by Wetherbee, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Brawley, S. H.
Right arrow Articles by Wetherbee, R.

Journal of Cell Science, Vol 24, Issue 1 275-294, Copyright © 1977 by Company of Biologists

JOURNAL ARTICLES

Fine-structural studies of the gametes and embryo of Fucus vesiculosus L. (Phaeophyta). III. Cytokinesis and the multicellular embryo

SH Brawley, RS Quatrano and R Wetherbee

Condensation of the chromosomes during the first cell division following fertilization of the brown alga Fucus vesiculosus L. is accompanied by the almost complete disappearance of the nuclear envelope. Golgi vesicles and other small vesicles appear within the spindle, which has paired centrioles at each end. A large amount of rough endoplasmic reticulum is in the surrounding cytoplasm during mitosis, and many vesicles at the spindle margin are encircled by stacks of endoplasmic reticulum. Annulate lamellae are observed during mitosis. The envelope which initially reforms around the chromatin in telophase has unevenly spaced nuclear pores. Cytokinesis results primarily by vesicle addition to a centripetal furrow. Mitochondria and chloroplasts concentrate around the partition site, possibly in association with microfilaments. Fibrillar material is added rapidly to the space between the daughter cells from vesicle discharge of both cells and seems to spread into the older cell wall surrounding the embryo. The rhizoid daughter cell contains numerous mitochondria and hypertrophied Golgi bodies whose vesicles increasingly pack the cell. The thallus daughter cell is packed with a variety of vesicles, and the nucleus is surrounded by many dilated cisternae of rough endoplasmic reticulum. By the four-cell stage, chloroplasts of the rhizoid cells have weakly staining lamellae, while chloroplasts of the thallus cells are actively dividing with deeply staining lamellae.


This article has been cited by other articles:


Home page
 ANN BOT (LOND)Home page
C. KATSAROS, D. KARYOPHYLLIS, and B. GALATIS
Cytoskeleton and Morphogenesis in Brown Algae
Ann. Bot., May 1, 2006; 97(5): 679 - 693.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
A. R. Skop, H. Liu, J. Yates III, B. J. Meyer, and R. Heald
Dissection of the Mammalian Midbody Proteome Reveals Conserved Cytokinesis Mechanisms
Science, July 2, 2004; 305(5680): 61 - 66.
[Abstract] [Full Text] [PDF]

Home page
 J. Cell Sci.Home page
C. Nagasato and T. Motomura
Influence of the centrosome in cytokinesis of brown algae: polyspermic zygotes of Scytosiphon lomentaria (Scytosiphonales, Phaeophyceae)
J. Cell Sci., June 15, 2002; 115(12): 2541 - 2548.
[Abstract] [Full Text] [PDF]

Home page
 DevelopmentHome page
F. Bouget, F Berger, and C Brownlee
Position dependent control of cell fate in the Fucus embryo: role of intercellular communication
Development, January 6, 1998; 125(11): 1999 - 2008.
[Abstract] [PDF]


© The Company of Biologists Ltd 1977