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Titolo:
Morphology and function of gill mitochondria-rich cells in fish acclimatedto different environments
Autore:
Chang, IC; Lee, TH; Yang, CH; Wei, YW; Chou, FI; Hwang, PP;
Indirizzi:
Acad Sinica, Inst Zool, Taipei, Taiwan Acad Sinica Taipei TaiwanAcad Sinica, Inst Zool, Taipei, Taiwan Natl Tsing Hua Univ, Nucl Sci & Technol Dev Ctr, Hsinchu, Taiwan Natl Tsing Hua Univ Hsinchu Taiwan i & Technol Dev Ctr, Hsinchu, Taiwan Natl Chung Hsing Univ, Dept Zool, Taichung 40227, Taiwan Natl Chung Hsing Univ Taichung Taiwan 40227 Zool, Taichung 40227, Taiwan Natl Taiwan Univ, Inst Fisheries Sci, Taipei 10764, Taiwan Natl Taiwan Univ Taipei Taiwan 10764 Fisheries Sci, Taipei 10764, Taiwan
Titolo Testata:
PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY
fascicolo: 1, volume: 74, anno: 2001,
pagine: 111 - 119
SICI:
1522-2152(200101/02)74:1<111:MAFOGM>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
TILAPIA OREOCHROMIS-MOSSAMBICUS; FRESH-WATER TELEOSTS; WHEAT-GERM-AGGLUTININ; NA-K-ATPASE; CHLORIDE CELL; FROG-SKIN; HYPOTONIC ENVIRONMENTS; COLLECTING DUCT; EURYHALINE FISH; H+-ATPASE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Hwang, PP Acad Sinica, Inst Zool, Taipei, Taiwan Acad Sinica Taipei Taiwan d Sinica, Inst Zool, Taipei, Taiwan
Citazione:
I.C. Chang et al., "Morphology and function of gill mitochondria-rich cells in fish acclimatedto different environments", PHYSIOL B Z, 74(1), 2001, pp. 111-119

Abstract

The objective of this study is to test the hypothesis that morphologicallydifferent mitochondria-rich (MR) cells may be responsible for the uptake of different ions in freshwater-adapted fish. Tilapia (Oreochromis mossambicus) were acclimated to high-Ca, mid-Ca, low-Ca, and low-NaCl artificial freshwater, respectively, for 2 wk. Cell densities of wavy-convex, shallow-basin, and deep-hole types of gill MR cells as well as whole-body Ca2+, Na+, and Cl- influxes were measured. Low-Ca fish developed more shallow-basin MR cells in the gills and a higher Ca2+ influx than those acclimated to other media. However, fish acclimated to low-NaCl artificial freshwater predominantly developed wavy-convex cells, and this was accompanied by the highest Na+ and Cl- influxes. Relative abundance of shallow-basin and wavy-convex MRcells appear to be associated with changes in Ca2+ and Na+/Cl- influxes, suggesting that shallow-basin and wavy-convex MR cells are mainly responsible for the uptake of Ca2+ and Na+/Cl-, respectively.

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Documento generato il 25/11/20 alle ore 18:57:23