PMID: 9185343May 1, 1997Paper

Salt and water balance in the toad Bufo viridis during recovery from two different osmotically stressful conditions

Comparative Biochemistry and Physiology. Part A, Physiology
J Hoffman, U Katz

Abstract

Toads, Bufo viridis, were subjected to two modes of osmotic stress: on soil of water potential approximately 5 atm and continuous partial immersion in 250 mmol/l NaCl solution. In both conditions, plasma osmolality was greatly elevated involving a large increase in urea concentration and was maintained hyperosmotic to the external environment. After acclimation to either condition, toads were allowed access to tap water, and the concentrations of body fluids and gross body weight were followed over a 7-day period. The toads bathed only until preacclimation gross weight was regained, although plasma osmolality remained elevated. Weight remained stable thereafter. Excess plasma Na+ and Cl- were eliminated within a few days, whereas the urea level diminished very slowly. K+ was closely controlled throughout, both during acclimation and recovery. The results suggest that B. viridis is equipped with a series of set points for osmotic pressure that enable it to maintain different steady states according to the prevailing conditions, the magnitude of the shift depending on the level of the imposed osmotic stress.

References

Nov 1, 1992·Comparative Biochemistry and Physiology. Comparative Physiology·S ShpunU Katz
Jan 1, 1991·Comparative Biochemistry and Physiology. A, Comparative Physiology·C B Jørgensen
Jan 1, 1986·Comparative Biochemistry and Physiology. A, Comparative Physiology·U Katz
Jan 1, 1986·Comparative Biochemistry and Physiology. A, Comparative Physiology·R F Burton
Nov 1, 1964·Comparative Biochemistry and Physiology·V H SHOEMAKER

❮ Previous
Next ❯

Citations

Dec 28, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Konstantinos FeidantsisBasile Michaelidis
Jan 14, 2005·Chromosoma·Alexander E Vinogradov
May 9, 2013·ACS Synthetic Biology·Tomoaki MatsuuraTetsuya Yomo
Mar 4, 2020·Fish Physiology and Biochemistry·Efthimia AntonopoulouStavros Chatzifotis
Aug 4, 2020·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Konstantinos FeidantsisDimitris Vafidis
Nov 21, 2021·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Marjoriane de AmaralLuiz Carlos Kucharski

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Comparative Biochemistry and Physiology. A, Comparative Physiology
G W Liggins, G C Grigg
Comparative Biochemistry and Physiology. Part A, Physiology
C B Jørgensen
Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
Konstantinos FeidantsisBasile Michaelidis
The Journal of Experimental Biology
Konstantina StathopoulouIsidoros Beis
Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
Basile MichaelidisKiriaki Konstantinou
© 2021 Meta ULC. All rights reserved