Active excretion of ammonia across the gills of the shore crab Carcinus maenas and its relation to osmoregulatory ion uptake

1998 ◽  
Vol 168 (5) ◽  
pp. 364-376 ◽  
Author(s):  
D. Weihrauch ◽  
W. Becker ◽  
U. Postel ◽  
S. Riestenpatt ◽  
D. Siebers
Keyword(s):  
Carcinus Maenas ◽  
Ion Uptake ◽  
Shore Crab

Molecular characterization of V-type H(+)-ATPase (B-subunit) in gills of euryhaline crabs and its physiological role in osmoregulatory ion uptake

2001 ◽  
Vol 204 (1) ◽  
pp. 25-37 ◽  
Author(s):  
D. Weihrauch ◽  
A. Ziegler ◽  
D. Siebers ◽  
D.W. Towle
Keyword(s):  
Fresh Water ◽  
Carcinus Maenas ◽  
Physiological Role ◽  
Eriocheir Sinensis ◽  
Ion Uptake ◽  
Shore Crab ◽  
Atpase Inhibitor ◽  
Subunit Mrna ◽  
B Subunit ◽  
Intracellular Organelles

The vacuolar-type H(+)-ATPase (V-ATPase) has been implicated in osmoregulatory ion uptake across external epithelia of a growing variety of species adapted to life in fresh water. In the present study, we investigated whether the V-ATPase may also function in a euryhaline species that tolerates brackish water (8 salinity) but not fresh water, the shore crab Carcinus maenas. cDNA coding for the regulatory B-subunit of the V-ATPase was amplified and sequenced from C. maenas gills and partially sequenced from four other crab species. Two isoforms differing in the 3′-untranslated region were found in C. maenas. In this species, the abundance of B-subunit mRNA was greater in the respiratory anterior gills than the ion-transporting posterior gills and was not increased by acclimation to dilute salinity. Immunocytochemical analysis showed that the B-subunit protein is not targeted to the apical membrane but is distributed throughout the cytoplasmic compartment. Physiological studies of isolated perfused gills indicated that the V-ATPase inhibitor bafilomycin had no effect on transepithelial potential difference. Thus, in contrast to the freshwater-tolerant Chinese crab Eriocheir sinensis, in which the V-ATPase appears to play an important osmoregulatory role, the V-ATPase in C. maenas probably functions in acidification of intracellular organelles but not in transbranchial NaCl uptake.

Effects of handling during experimental procedures on stress indices in the green shore crab, Carcinus maenas (L)

2021 ◽  
Vol 54 (2) ◽  
pp. 65-85
Author(s):  
Charlotte H. Wilson ◽  
Sarah J. Nancollas ◽  
Molly L. Rivers ◽  
John I. Spicer ◽  
Iain J. McGaw
Keyword(s):  
Carcinus Maenas ◽  
Shore Crab ◽  
Stress Indices

Biochemical responses of the shore crab (Carcinus maenas) in a eutrophic and metal-contaminated coastal system (Óbidos lagoon, Portugal)

2009 ◽  
Vol 72 (5) ◽  
pp. 1471-1480 ◽  
Author(s):  
Patrícia Pereira ◽  
Hilda de Pablo ◽  
Maria Dulce Subida ◽  
Carlos Vale ◽  
Mário Pacheco
Keyword(s):  
Carcinus Maenas ◽  
Shore Crab ◽  
Coastal System ◽  
Biochemical Responses

Mechanisms of copper toxicity in the shore crab, Carcinus maenas

1992 ◽  
Vol 114 (2) ◽  
pp. 253-257 ◽  
Author(s):  
Jan Ivan Hansen ◽  
Tariq Mustafa ◽  
Michael Depledge
Keyword(s):  
Carcinus Maenas ◽  
Copper Toxicity ◽  
Shore Crab

Effect of copper on ion- and osmoregulation in the shore crab Carcinus maenas

1986 ◽  
Vol 91 (1) ◽  
pp. 69-76 ◽  
Author(s):  
P. Bjerregaard ◽  
T. Vislie
Keyword(s):  
Carcinus Maenas ◽  
Shore Crab ◽  
Effect Of Copper
Sign in / Sign up

Export Citation Format

Share Document