The archespore, which is directly under the nucellar epidermis, develops into the megaspore mother cell
. The megaspore tetrad is arranged linearly, and the megaspore at the chazlazal end is the functional megaspore.
A sharp correlation was observed between division in microspore mother cells
(M.M.Cs) and development of anther's tapetum.
Development of the quadripolar meiotic apparatus in Funaria spore mother cells
: analysis by means of anti-microtubule drug treatments.
One of the daughter cells (usually the larger one) is described as a prospective axial cell, and the other is regarded as the mother cell
of the peripheral cells.
In the mother cell
the centrosome is normally found in the vicinity of the cell nucleus, and is replicated prior to the onset of cell division.
The nucellus beneath the megaspore mother cells
continuously elongated and developed into mature finger- like shape (Fig.
At this stage, microspore mother cells
(Microsporocytes), were also detectable (Fig1 J).
But when it comes to cancer, say UCLA researchers, mother cells
may be far more prolific.
If a mother cell
divides symmetrically, many scientists theorized that the offspring inherit cellular components equally ravaged by the experiences of previous generations.
From our examination of Costus, it too is invasive since the tapetal cell walls break down completely at the pollen mother cell
stage, releasing the contents into the anther locule and there is no evidence of a perispore membrane [ILLUSTRATION FOR FIGURES 18-25 OMITTED].
At the microspore mother cell
(MMC) stage in the S.striata numerous cytoplasmic connections are observed while the callose wall starts to form and the primary wall is still present.
The inner integument initiates first, and then the outer integument develops into a small protuberance at the megaspore mother cell