Ultrastructure Organization of Collagen Fibrils and Proteoglycans of Stingray and Shark Corneal Stroma

Figure 3

Electron micrograph of stingray fish cornea; (a) part of the stroma showing the keratocyte containing large nucleus; (b) a single suture running obliquely between two lamellae; (c) the middle part of the suture showing presence of CFs and microfibrils. The microfibrils lacked the PGs whereas CFs were decorated with PGs. (d) Sagittal section of a suture showing the CFs surrounding the microfibrils; (e) part of the suture showing presence of PGs on the CFs of the suture; (f) part of suture showing absence of PGs on the microfibrils of suture. CF: collagen fibrils, DM: Descemet’s membrane, L: lamellae, KR: keratocyte, MF: microfibrils, PG: proteoglycans, and SU: suture.

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