INVESTIGADORES
FAIVOVICH Julian
artículos
Título:
Structural diversity of nuptial pads in Phyllomedusinae (Amphibia, Anura, Hylidae)
Autor/es:
LUNA, M.C.; TABOADA, C.; BAETA, D.; FAIVOVICH, J.
Revista:
JOURNAL OF MORPHOLOGY
Editorial:
WILEY-LISS, DIV JOHN WILEY & SONS INC
Referencias:
Año: 2012 vol. 273 p. 712 - 712
ISSN:
0362-2525
Resumen:
 <!-- /* Font Definitions */ @font-face {font-family:"Times New Roman"; panose-1:0 2 2 6 3 5 4 5 2 3; mso-font-charset:0; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:50331648 0 0 0 1 0;} @font-face {font-family:Arial; panose-1:0 2 11 6 4 2 2 2 2 2; mso-font-charset:0; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:50331648 0 0 0 1 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Arial; color:black;} table.MsoNormalTable {mso-style-parent:""; font-size:10.0pt; font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} --> We studied the morphological variation of the nuptial pads using light and scanning electron microscopy in 26 species of phyllomedusines (Anura: Hylidae), representing the five currently recognized genera. All phyllomedusines have single nuptial pads with dark colored epidermal projections. Spine shaped epidermal projections occur in Cruziohyla calcarifer, Phrynomedusa appendiculata and in one species of Phasmahyla. The other species have roundish epidermal projections. The density of the epidermal projections on the pad is variable. Species in the Phyllomedusa hypochondrialis Group have epidermal projections with a density that varies between 764 ± 58/mm2 and 923 ± 160/mm2. In all other studied species (including the P. burmeisteri and P. perinesos groups, P. camba, P. boliviana, P. sauvagii, P. bicolor, and P. tomopterna) the density of epidermal projections varies between 108 ± 20/mm2 and 552 ± 97/mm2. There is variation in the exposure of pores as related to the space separating adjacent epidermal projections. Pores were observed with scanning electron microscopy in Cruziohyla calcarifer, Agalychnis lemur, A. moreletii, but its presence is confirmed through histological sections on several other species. Its visibility using scanning electron microscopy seems to be related with the level of separation between adjacent epidermal projections. The pores in the four studied species of Agalychnis are shown with scanning electron microscopy and histological sections to have a characteristic epidermal rim, that is absent in the other phyllomedusines. Unlike most previous reports on breeding glands, those of phyllomedusines are alcian blue +, indicating the presence of acidic mucosubstances on its secretions.