Phragmoplast

The phragmoplast (from the Greek phrágma = demarcation and plástes = formers, formers) or "wall formers" is the preliminary stage of the cell wall plate in plants. It consists of a complex of microtubules , microfilaments and endoplasmic reticulum . The development usually begins in the middle of the former mother cell during the telophase of cell division . Golgi vesicles filled with cell wall material , the phragmosomes, migrate to the phragmoplast and fuse with it there. This creates the cell plate, which now grows further to the edges of the cell, as further Golgi vesicles are attached. The entire process is quick, as the daughter cells are often separated in minutes.

In the different forms of cell division occurring in nature, the phragmoplast is contrasted with the phycoplast . Here microtubules are laid out parallel to the axis of division.

literature

• Peter Sitte , Elmar Weiler , Joachim W. Kadereit , Andreas Bresinsky , Christian Körner : Textbook of botany for universities . Founded by Eduard Strasburger . 35th edition. Spektrum Akademischer Verlag, Heidelberg 2002, ISBN 3-8274-1010-X .