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

Tatsuya Sakamoto; Katsuhisa Uchida; Shigefumi Yokota

doi:10.2108/zsj.18.1163

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

Tatsuya Sakamoto, Katsuhisa Uchida, Shigefumi Yokota

Research output: Contribution to journal › Review article › peer-review

97 Citations (Scopus)

Abstract

The mitochondrion-rich cells (MRCs) in teleost gill and equivalent tissues are important osmo-regulatory 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.

Original language	English
Pages (from-to)	1163-1174
Number of pages	12
Journal	Zoological science
Volume	18
Issue number	9
DOIs	https://doi.org/10.2108/zsj.18.1163
Publication status	Published - Dec 2001
Externally published	Yes

Keywords

Adaptation
Chloride cell
Fish
Mitochondrion-rich cell
Osmoregulation

ASJC Scopus subject areas

Animal Science and Zoology

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10.2108/zsj.18.1163

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title = "Regulation of the ion-transporting mitochondrion-rich cell during adaptation of teleost fishes to different salinities",

abstract = "The mitochondrion-rich cells (MRCs) in teleost gill and equivalent tissues are important osmo-regulatory 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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author = "Tatsuya Sakamoto and Katsuhisa Uchida and Shigefumi Yokota",

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AU - Sakamoto, Tatsuya

AU - Uchida, Katsuhisa

AU - Yokota, Shigefumi

PY - 2001/12

Y1 - 2001/12

N2 - The mitochondrion-rich cells (MRCs) in teleost gill and equivalent tissues are important osmo-regulatory 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.

AB - The mitochondrion-rich cells (MRCs) in teleost gill and equivalent tissues are important osmo-regulatory 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.

KW - Adaptation

KW - Chloride cell

KW - Fish

KW - Mitochondrion-rich cell

KW - Osmoregulation

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

Abstract

Keywords

ASJC Scopus subject areas

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