BioMed Research International / 2014 / Article / Fig 4

Research Article

TBT Effects on the Development of Intersex (Ovotestis) in Female Fresh Water Prawn Macrobrachium rosenbergii

Figure 4

(a) Transmission electron micrograph (TEM) of section through the ovary (control) showing mature oocytes with type 2 yolk globules (Y2) and lipid droplets (LD) (×4,500). Bar: 1 μm. (b) TEM of section through the ovary of TBT treated prawn showing type 1 yolk globules (Y1) and lipid droplets (LD) (×7,000). Bar: 1 μm. (c) TEM of control prawn ovary showing normal architecture of vitellin envelop (Ve) and uniformly arranged microvilli (Mv) (×10,000). Bar: 1 μm. (d) TEM of section through ovary of the treated prawn showing oocytes with type 1 yolk globules (Y1), lipid droplets (LD), glycogen particles ( G), and reduced size of microvilli ( ) (×4,500). Bar: 1 μm. (e) TEM of section through the ovary showing the spermatogonia (Sg) in the treated prawn (×1,500). Bar: 10 μm. (f) Enlarged view of spermatogonia with centrally located nucleus (N) and chromatin (Ch) distributed throughout the nucleoplasm (×10,000). Bar: 1 μm.
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