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

Figure 4

Electron micrograph of stingray cornea; (a) posterior part of a single suture containing randomly running CFs embedded within the lamella. (b) Basal part of multiple sutures containing randomly running CF which were embedded within the lamella. Group of microfibrils were present among the CF. (c) Posterior part of the suture showing presence of PGs on the CF but not on the microfibrils; (d) longitudinally running microfibrils of suture not surrounded by CF; (e) electron micrograph of longitudinally running CF of the middle stroma of shark; (f) electron micrograph of cross section of CF of the middle stroma of shark. CF: collagen fibrils, L: lamellae, MFL: microfilament, PG: proteoglycans, S: stroma, and SU: suture.

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