Licht- und elektronenmikroskopische untersuchungen zur haftborstenentwicklung bei Tarentola m. mauritanica L. (Reptilia, Gekkonidae)

Hiller, U

doi:10.1007/bf00297208

Cited by 28 publications

(22 citation statements)

References 12 publications

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“…Among reptilian species, particular interesting is the case of geckoes possessing modified scales in their digits, termed climbing lamellae, that allow these lizards to crawl on vertical or upside-down surfaces (Maderson, 1970;Hiller, 1972;Alibardi, 1998;Figs. 1, 2).…”

Section: Fig 2 A-cmentioning

confidence: 99%

Cloning and characterization of scale β‐keratins in the differentiating epidermis of geckoes show they are glycine‐proline‐serine–rich proteins with a central motif homologous to avian β‐keratins

Valle

Nardi

Toffolo

et al. 2006

Developmental Dynamics

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Section: Fig 2 A-cmentioning

confidence: 99%

Cloning and characterization of scale β‐keratins in the differentiating epidermis of geckoes show they are glycine‐proline‐serine–rich proteins with a central motif homologous to avian β‐keratins

Valle

Nardi

Toffolo

et al. 2006

Developmental Dynamics

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“…Its development is related to the sloughing cycle of the squamate epidermis: the outer epidermal generation is periodically shed and replaced by the former inner generation (Maderson 1966;Hiller 1970Hiller , 1972Maderson et al 1998), as summarized in Fig. 4.…”

Section: Discussionmentioning

confidence: 99%

“…The details of further development are best seen at stage III of the sloughing cycle (Hiller 1972; end of renewal phase of Maderson et al 1998) when the new (inner) epidermal generation is almost completed. In the TEM overview (Fig.…”

Section: Morphology: Mucoid Droplets On the Skin Surfacementioning

confidence: 99%

First evidence of unicellular glands in the general epidermis of terrestrial reptiles

Hiller

Werner

2007

Naturwissenschaften

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The general integument of reptiles is traditionally defined as being dry, but we report here the discovery of unicellular mucoid glands (UCMG) in the dorsal skin of lizards of the genus Phelsuma (Gekkonidae). To this end, the skin of these lizards and of some others for comparison was studied by scanning electron microscopy and transmission electron microscopy. These photographs showed that the development and function of the UCMGs are related to the skin's sloughing cycle. The UCMGs differentiate at scattered locations from Oberhäutchen cells of the inner (new) epidermal generation, above the differentiating beta-keratin layer. While the inner generation matures, the UCMG increases in size; unlike the surrounding Oberhäutchen cells, it does not develop the spinules that characterize gecko skin. When, upon sloughing, the inner generation becomes the new outer generation, and the Oberhäutchen forms the skin surface, the UCMGs, several per scale, dot the surface as mucus-inflated "blebs" projecting from the surrounding spinulate Oberhäutchen, each nesting in a shallow pit of the underlying beta-keratin. On the surface, the UCMGs rupture and the mucus appears to dissipate in cords, flowing over the tips of the spinules, and incorporating minute foreign bodies. It is concluded that, due to the low wettability of the spinulate surface (derived from the spacing of the spinules), the cords brush off easily, with the mucus functioning as a cleaning agent.

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“…Since the setae are part of the keratinized layers of the scales (stratum corneum), they are shed periodically. Before shedding, new setae are preformed from the presumptive Oberhautchen cells protruding into the clear layer cells as finger-like projections (Ernst & Ruibal, 1966;Hiller, 1972).…”

Section: Setaementioning

confidence: 99%

Epidermal fine structure of the toe tips of Sphaerodactylus cinereus (Reptilia, Gekkonidae)

Röll

1995

Journal of Zoology

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With 3 plates in the text) This paper deals with epidermal structures of the sphaerodactyline gecko Sphuerodactylus cinereus: adhesive pads, cutaneous sensilla and intraepidermal axon terminals.The adhesive pad is restricted to a single terminal scale and bears approximately 6,000 setae. The setae are complex, hair-like structures which branch and sub-branch up to five times. The terminal ends are shaped like inverted cones. They provide the friction which enables the gecko to walk even on vertical glass-plates.Cutaneous sensilla of supposed mechanoreceptive function are found in groups of three or four at the anterior free edge of all dorsal and distal scales of the digit. The sensillum consists of a circular platelet in an epidermal depression bordered by an annular furrow and two or three bristles in a central position.Discoid axon terminals in the digital scales are located between relatively stiff structures: the corneous layers of the epidermis and a layer of tonofibrillar bundles. The axon terminals are hypothesized to be sensitive to the internal pressure depending on hyperextension of the toe.

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Licht- und elektronenmikroskopische untersuchungen zur haftborstenentwicklung bei Tarentola m. mauritanica L. (Reptilia, Gekkonidae)

Cited by 28 publications

References 12 publications

Cloning and characterization of scale β‐keratins in the differentiating epidermis of geckoes show they are glycine‐proline‐serine–rich proteins with a central motif homologous to avian β‐keratins

Cloning and characterization of scale β‐keratins in the differentiating epidermis of geckoes show they are glycine‐proline‐serine–rich proteins with a central motif homologous to avian β‐keratins

First evidence of unicellular glands in the general epidermis of terrestrial reptiles

Epidermal fine structure of the toe tips of Sphaerodactylus cinereus (Reptilia, Gekkonidae)

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