Data/hora: 01/06/2024 12:45:31

Provedor de dados: | Zoologia
País: | Brazil
Título: | Morfologia e ultraestrutura de arcos branquiais de juvenis de Mugil platanus Günther (Pisces, Mugilidae)
Autores: | Fonseca Neto,José Claro da; Spach,Henry Louis.
Data: | 1999-06-01
Ano: | 1999
Palavras-chave: | Gill arch; Mugil platanus; Morfology; Surface ultrastructure.
Resumo: | Scanning electron microscopy revealed that the gill arch surface from juveniles of Mugil platanus Günther, 1880 is similar to that reported for others euryhaline teleosts. Two filament rows (about 41-49 filament per row) extend posteriorly, and two rows of rakers (about 42-46 rakers per row) extended anteriorly from each arch. Respiratory lamellae protrude along both sides of each filament (37/mm), from the base to the apex. The distribution, sizes and structure of various surface cells were also described. Except for the respiratory lamellae, the surface of whole gill arch is covered by a mosaic of pavement cells, which measure about 6,94X4,61µm and exhibit concentrically arranged surface ridges. The anterior pharyngeal surfaces of the raker of the first arch and the ventral part of the second, smooth secondary projections are present which are replaced by spiny secondary projections on the dorsal part of the second arch, and entire third and fourth arches. Taste buds are especially prominent between smooth projections. Apical ciypts of chloride cells oceur mostly at the afferent surface of the gill filament.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200014
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81751999000200014
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.16 n.2 1999
Fonte: | info:eu-repo/semantics/openAccess