Ultrastructure of Javaen barb fish Systomus orphoides Valenciennes, 1842 spermatozoa (Cypriniformes: Cyprinidae) by electron microscopes.
Microsc Res Tech
; 86(11): 1411-1415, 2023 Nov.
Article
em En
| MEDLINE
| ID: mdl-37158224
ABSTRACT
Javaen barb fish Systomus orphoides Valenciennes, 1842 (Cypriniformes Cyprinidae) is a freshwater fish whose population is declining and threatened with extinction. In this study, the ultrastructure of spermatozoa of Javaen barb fish (S. orphoides) was studied using transmission and scanning electron microscopy. The spermatozoa of S. orphoides are relatively simple cells composed of a spherical head, a short midpiece, and a flagellum, as in most Cyprinidae. The ultrastructure is characterized by the absence of acrosome, the total length of spermatozoa is 27.16 ± 4.5 µm, and the head has spherical with a length of 1.84 ± 0.10 µm and width of 1.55 ± 0.15 µm containing a nucleus, midpiece region containing the proximal and distal centrioles and mitochondria. Two or three mitochondria surrounding the axoneme (with a 9 + 2 microtubular pattern). Ultrastructural analyses by SEM and TEM of Javaen barb fish spermatozoa cells are very consistent with those of Cyprinidae. This study provides the ultrastructure information of S. orphoides spermatozoa in the Cyprinidae family this research could be useful in increasing reproductive efficiency and further prevent the extinction of this species.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cipriniformes
/
Cyprinidae
Limite:
Animals
Idioma:
En
Revista:
Microsc Res Tech
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Indonésia