Microstructure and Histochemistry of Salamander Spermatophores (Ambystomatidae, Salamandridae and Plethodontidae)

Zalisko, Edward J.; Brandon, Ronald A.; Martan, Jan

doi:10.2307/1445158

Cited by 24 publications

(17 citation statements)

References 20 publications

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“…The spermatophore of L. italicus has a simple structure in which sperm are randomly distributed throughout the periphery of the cap. Probably, as suggested for L. vulgaris (Zalisko et al 1984), a proteinaceous matrix, formed by mucoproteins and glycoproteins, holds together spermatozoa.…”

Section: Spermatophorementioning

confidence: 92%

“…h SEM of the 'cap' of a spermatophore with a small portion of the stalk seen at bottom right. af axial Wber, m mitochondria, mf marginal Wlament, n nucleus, nf nuclear fossa, pc proximal centriole, r ring or annulus, um undulating membrane structure is rounded; in N. viridescens sperm are concentrated on the periphery in coiled groups with heads and tails in register, and heads directed inward (Zalisko et al 1984); in L. vulgaris and C. pyrrhogaster sperm are randomly distributed throughout the periphery of the cap and they are less abundant in the center of the cap (Zalisko et al 1984); (3) in Pleurodeles waltl the membranelike structure is absent and spermatozoa are distribuited randomly throughout the periphery of the cap (Zalisko et al 1984). The spermatophore of L. italicus has a simple structure in which sperm are randomly distributed throughout the periphery of the cap.…”

Section: Spermatophorementioning

confidence: 99%

“…Knowledge of testes, eVerent ducts, spermiogenesis and spermatozoal morphology and ultrastructure is indispensable for the study of reproductive biology and is of value for reconstruction of phylogenetic relationships in many animal taxa (Purschke and Jördens 2007;Longo and Trovato 2008;Tavares-Bastos et al 2008;Tourmente et al 2008) and in particular for all amphibians taxa (Baker 1965;Wake 1968Wake , 1970Williams et al 1984;Zalisko et al 1984;Brizzi et al 1992;Lee and Jamieson 1993;Selmi et al 1997Selmi et al , 1999Jamieson 2003a, b, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Male reproductive system in the Italian newt Lissotriton italicus (Peracca 1898) (Amphibia, Urodela): ultrastructural and morphological study with description of spermiogenesis, spermatozoon and spermatophore

et al. 2009

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The Wrst morphological and ultrastructural description of testis, WolYan duct, spermatophore, and spermatozoon of Lissotriton italicus is provided. The male reproductive system of this species consists of a pair of monolobed testes, fat bodies, eVerent ductules, paired WolYan duct, and the cloaca. The WolYan duct is pseudostratiWed, consisting of an epithelium composed of an alternation of ciliated cells and non-ciliated secretory cells, with scattered basal cells. Melanocytes are found in the basal lamina of the WolYan duct. Spermiogenesis is of the discontinuous type. In the early spermatid nuclear elongation, Xagellar extrusion and development of a large acrosomal vesicle occur. Soon the perforatorium develops and the Xagellum elongates. In the late spermatid gradual chromatin condensation and nuclear elongation is noticeable. At the end of spermiogenesis the Xagellum develops marginal Wlament and undulating membrane. The mature sperm of L. italicus consists of a distinct head (acrosome, perforatorium, nucleus and nuclear ridge, plus the apical acrosomal barb) and a tail with axoneme, undulating membrane, and axial Wber. Nuclear ridge and apical acrosomal barb are two autapomorphic characters found in the Urodela. Several apomorphic characters for Salamandroidea are also present: elongation of the connecting piece, an apically modiWed acrosome vesicle, trifoliate axial Wber within the principal piece, elongate annulus, elongate midpiece, and the gentle merging of the axial Wber/principal piece into the endpiece. The spermatophore of L. italicus is formed by a cap consisting of randomly distributed spermatozoa surmounting a short pedicel. A membranelike structure involving the spermatophore is absent.

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Section: Spermatophorementioning

confidence: 92%

Section: Spermatophorementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Male reproductive system in the Italian newt Lissotriton italicus (Peracca 1898) (Amphibia, Urodela): ultrastructural and morphological study with description of spermiogenesis, spermatozoon and spermatophore

et al. 2009

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“…46,[62][63][64]65 The spermatophores may present differences in size and shape. 66 The spermatophores are formed during courtship, deposited by a male in the exterior and picked up by cloacal labia of the female. 3 The structure and histochemistry of spermatophores of several species of the families Ambystomatidae, Salamandridae, and Plethodontidae are described.…”

Section: Spermatophoresmentioning

confidence: 99%

“…3 The structure and histochemistry of spermatophores of several species of the families Ambystomatidae, Salamandridae, and Plethodontidae are described. 66,67 In Necturus, the spermatophores are deposited by a male to a female directly by cloacal apposition and the stalk may be absent in these species. 3 …”

Section: Spermatophoresmentioning

confidence: 99%