Regulation of the ion-transporting mitochondrion-rich cell during adaptation of teleost fishes to different salinities.

被引：95
作者：
Sakamoto, T [1 ]
Uchida, K
Yokota, S
机构：
[1] Hiroshima Univ, Fac Integrated Arts & Sci, Higashihiroshima 7398521, Japan
[2] RIKEN, Ctr Dev Biol, Tsukuba, Ibaraki 3050074, Japan
来源：
ZOOLOGICAL SCIENCE | 2001年 / 18卷 / 09期
关键词：
adaptation; chloride cell; fish; mitochondrion-rich cell; osmoregulation;
D O I：
10.2108/zsj.18.1163
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
The mitochondrion-rich cells (MRCS) in teleost gill and equivalent tissues are important osmoregulatory sites in maintaining ionic balance. These cells express a variety of ion pumps, transporters, and channels, which play central roles in ionic regulation. Recently, two types of MRCS have been identified in euryhaline fishes: seawater (SW)-type MRCs extrude Na and Cl ions in SW conditions; freshwater (FW)-type MRCs take up at least Cl-. Long-term development/differentiation of the two types of MRCs during adaptation to different salinities appears to be regulated mainly by endocrine factors. Osmolality, Ca2+, neurotransmitters, and fast-acting hormones rapidly regulate the SW MRCS. Recent information is assembled in this review and suggests the functional plasticity of highly specialized MRCS.
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页码：1163 / 1174
页数：12
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