phragmoplast


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phrag·mo·plast

(frag'mō-plast),
Barrel-shaped enlargement of the spindle associated with formation of the new cell membrane during telophase in plant cells.
[G. phragma, hedge, enclosure, + plassō, to form]
References in periodicals archive ?
6c, d), and in multipolar assembly of the phragmoplast in monoplastidic sporocytes (Fig.
Similar BMAs contribute to the development of complex phragmoplast systems (Fig.
Even though meiotic cytokinesis is delayed until after second division when it occurs simultaneously, a well-developed phragmoplast is typically organized in the equatorial region during anaphase/telophase I.
The mechanism of intracellular motility involved in OB development is not at all understood, especially since the organelles first appear to form a collar surrounding the interzone and then proceed to invade the region at right angles to the BMAs making up the phragmoplast.
The primary phragmoplasts expand and secondary phragmoplasts form between non-sister nuclei resulting a phragmoplast complex (Fig.
29a-c) and give rise to a phragmoplast in which forms a free-floating disc.
Interaction of opposing sets of microtubules in the interzone gradually gives rise to a well-defined phragmoplast (Fig.
This results in a phragmoplast complex that directs cell plate deposition to simultaneously cleave the tetrad of spores.
Immediately a distinctive phragmoplast develops (Fig.
While vesicles and ER fragments are thought to be transported to the forming cell plate by the phragmoplast, it is not at all clear how large organelles such as oil bodies and mitochondria move into the equatorial plane, especially as the movement appears to be at fight angles to the orientation of the phragmoplast microtubules.
Microtubules emanating from proximal surfaces of the nuclei and flanking plastids form a phragmoplast array (Fig.
No phragmoplasts or spindle microtubules were seen in