search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 34, No. 4, 2013, pp. 411-416
Bioline Code: zr13064
Full paper language: English
Document type: Report
Document available free of charge

Zoological Research, Vol. 34, No. 4, 2013, pp. 411-416

 en Structural changes in mitochondrion-rich cells in the gills of artificial selected Trachinotus ovatus check for this species in other resources offspring under different salinities
OU, You-Jun; LIU, Ru-Jian; LI, Jia-Er & CAO, Shou-Hua

Abstract

Distribution and ultrastructural changes in the mitochondrion-rich cells in gills of artificial selected Trachinotus ovatus check for this species in other resources under different salinities (5, 20, and 30) were examined by light and transmission electron micrograph. Results indicated that the mitochondrion-rich cells were mainly present on the base of the gill filaments and branchial leaflets, and the volume and quantity of mitochondrion-rich cells increased with salinity. All three salinity groups had apical crypts, which were constituted by the mitochondrion-rich cells, pavement cells and accessory cells. Mitochondrion-rich cells in the salinity 5 group had large apical membranes with developed microridges and shallow apical crypts. Apical crypts in the salinity 20 and 30 groups had small apical membranes and undeveloped microridges, and were embolic obviously. Cytoplasm of mitochondrion-rich cells in the salinity 5 and 30 groups developed tubular systems and abundant cristae mitochondria. The tubular system of the salinity 20 group was non-spatially constant and had loose structure. Part of the tubular system contracted into a pearl bubble structure and shared rough endoplasmic reticulum. Mitochondrion-rich cells in Trachinotus ovatus under salinities 5 and 20 appeared both seawater-type’s and freshwater-type’s features, and those in salinity 30 had typical characteristics as seawater-type MR cells. Structural changes of mitochondrion-rich cells were suited to different osmotic pressure.

Keywords
Trachinotus ovatus; Selective offspring; Gill; Mitochondrion-rich cell; Ultrastructure; Salinity

 
© Zoological Research
Alternative site location: http://www.zoores.ac.cn/

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2017, Site last up-dated on 16-Oct-2017.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil