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Akademický článek

Light induces changes in activities of Na+/K+(NH4+)-ATPase, H+/K+(NH4+)-ATPase and glutamine synthetase in tissues involved directly or indirectly in light-enhanced calcification in the giant clam Tridacna squamosa

Autor: Alex Y K Ip, Biyun eChing, Kum C. Hiong, Yen Ling eChoo, Mel Veen Boo, WaiP eWong, S F Chew

Publikováno v: Frontiers in Physiology, Vol 6 (2015)

The objective of this study was to determine the effects of 12 h of exposure to light, as compared with 12 h of exposure to darkness (control), on enzymatic activities of transporters involved in the transport of NH4+ or H+, and activities of enzymes

Externí odkaz: https://doaj.org/article/bd584ae071dd48e0ac5fad45b3309cc1

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Akademický článek

Functional roles of Na+/K+-ATPase in active ammonia excretion and seawater acclimation in the giant mudskipper, Periophthalmodon schlosseri

Autor: Shit F Chew, Kum C. Hiong, Sock P Lam, Seow W Ong, Wei L Wee, WaiP eWong, Alex Y K Ip

Publikováno v: Frontiers in Physiology, Vol 5 (2014)

The giant mudskipper, Periophthalmodon schlosseri, is an amphibious fish that builds burrows in the mudflats. It can actively excrete ammonia through its gills, and tolerate high environmental ammonia. This study aimed to examine the effects of seawa

Externí odkaz: https://doaj.org/article/aea48cd7103345f09e61abb6b35193a3

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Akademický článek

Increases in apoptosis, caspase activity and expression of p53 and bax, and the transition between two types of mitochondrion-rich cells, in the gills of the climbing perch, Anabas testudineus, during a progressive acclimation from freshwater to seawater

Autor: Biyun eChing, Xiu L. Chen, Jing H. A. Yong, Jonathan M Wilson, Kum C. Hiong, Eugene W. L. Sim, Wai P Wong, Siew H. Lam, S F Chew, Alex Y K Ip

Publikováno v: Frontiers in Physiology, Vol 4 (2013)

This study aimed to test the hypothesis that branchial osmoregulatory acclimation involved increased apoptosis and replacement of mitochdonrion-rich cells (MRCs) in the climbing perch, Anabas testudineus, during a progressive acclimation from freshwa

Externí odkaz: https://doaj.org/article/c664536860514b3388b864f567271cc5

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Akademický článek

Gene cloning and mRNA expression of glutamate dehydrogenase in the liver, brain and intestine of the swamp eel, Monopterus albus, exposed to freshwater, terrestrial conditions, environmental ammonia or salinity stress

Autor: C Y Toh, S. F Chew, Alex Y K Ip

Publikováno v: Frontiers in Physiology, Vol 2 (2011)

The swamp eel, Monopterus albus, is an obligatory air-breathing teleost which can survive long period of emersion, has high environmental and tissue ammonia tolerance, and acclimate from fresh to brackish water. This study was undertaken to clone and

Externí odkaz: https://doaj.org/article/a6028511801045379a51540f3ca532c6

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Akademický článek

Ammonia production, excretion, toxicity, and defense in fish: A Review

Autor: Alex Y K Ip, S. F Chew

Publikováno v: Frontiers in Physiology, Vol 1 (2010)

Many fishes are ammonotelic but some species can detoxify ammonia to glutamine or urea. Certain fish species can accumulate high levels of ammonia in the brain or defense against ammonia toxicity by enhancing the effectiveness of ammonia excretion th

Externí odkaz: https://doaj.org/article/0b1c36dfccac4f73851cbc8cfbea23d7

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Frontiers in Aquatic Physiology - grand challenge

Autor: Shigehisa Hirose, Michael A. Castellini, Hans O. Poertner, Raymond P. Henry, Michael Axelsson, Kathleen M. Gilmour, Alex Y K Ip, Cedomil Lucu, Richard L. Londraville, Barbara S. Beltz, Lisa Crockett, Kendall D. Clements, Warren W. Burggren, Patricia A. Wright, Adam P. Summers, David H. Evans

Publikováno v: Frontiers in Physiology, Vol 1 (2010)
Frontiers in Physiology

Life originated in an aqueous environment, and extant aquatic species face special challenges due to the physics and chemistry of water. Such functions as feeding and digestion, waste excretion, ion and volume regulation, acid-base regulation, biomec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::225401c9fb029aa2d5a7478de12babf4
http://journal.frontiersin.org/Journal/10.3389/fphys.2010.00006/full

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