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Fig. 1.5 Structure of the ovary and oogenesis in Callopora lineata .
( A ) Ovary containing late previtellogenic oocyte. ( B ) Ovary with
early vitellogenic oocyte (intraovarian space arrowed ). ( C ) Ovary with
a late vitellogenic and three early previtellogenic doublets (siblings of
these female cells lie outside the section plane; yolk granules are lacking
in the cytoplasm of the animal pole of the leading oocyte. ( D ) Ovary with
mature vitellogenic oocyte and previtellogenic doublet ( arrow points
to sperm head in cytoplasm of previtellogenic oocyte). Abbreviations:
bw basal wall, f follicle cells, is intraovarian space, o oocyte, ov ovarywall cells, pd previtellogenic doublet, poc previtellogenic oocyte,
sf squamous follicle cells, voc vitellogenic oocyte. Scale bars: A – D ,
10 μm
Figures
Fig. 1.5 Structure of the ovary and oogenesis in Callopora lineata .
( A ) Ovary containing late previtellogenic oocyte. ( B ) Ovary with
early vitellogenic oocyte (intraovarian space arrowed ). ( C ) Ovary with
a late vitellogenic and three early previtellogenic doublets (siblings of
these female cells lie outside the section plane; yolk granules are lacking
in the cytoplasm of the animal pole of the leading oocyte. ( D ) Ovary with
mature vitellogenic oocyte and previtellogenic doublet ( arrow points
to sperm head in cytoplasm of previtellogenic oocyte). Abbreviations:
bw basal wall, f follicle cells, is intraovarian space, o oocyte, ov ovarywall cells, pd previtellogenic doublet, poc previtellogenic oocyte,
sf squamous follicle cells, voc vitellogenic oocyte. Scale bars: A – D ,
10 μm
Figures