Skip Navigation

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 Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by CHARZYNSKA, M.
Right arrow Articles by LEWANDOWSKA, E.
Right arrow Search for Related Content
PubMed
Right arrow Articles by CHARZYNSKA, M.
Right arrow Articles by LEWANDOWSKA, E.
Agricola
Right arrow Articles by CHARZYNSKA, M.
Right arrow Articles by LEWANDOWSKA, E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Annals of Botany 65: 685-689, 1990
© 1990 Annals of Botany Company

RESEARCH-ARTICLE

Generative Cell Division and Sperm Cell Association in the Pollen Grain of Sambucus nigra

MARIA CHARZYNSKA* and ELIZA LEWANDOWSKA

Department of Plant Physiology II, University of Warsaw Krokowskie przedmiescie 26/28, 00–927 Warsaw, Poland

* For correspondence.

Accepted: 3 December 1989   

Generative cell division in tricellular pollen grains of Sambucus nigra L. (Caprifoliaceae) has been examined with light and electron microscopy. During division the generative cell is located in the centre of the pollen grain, near to the nucleus of a surrounding vegetative cell. Conventional mitosis of the generative cell is followed by cytokinesis through centrifugal cell plate formation. Two sister sperm cells remain in spatial contact with each other and are surrounded, as formerly their progenitor cell was, by the vegetative cell. From the changes of shape of the generative cell during division and of the sperm cells it may be assumed that the space between these cells and the vegetative one contains a labile, non-rigid, wall material. No plastids have been observed in the generative cell and its mitochondria appear to be unequally distributed between the two future sperm cells during division.

Sambucus nigra L., generative cell division, pollen, sperm cell association


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.