2012 Fiscal Year Final Research Report
Universality and diversity of osmoregulation applying urea retention in vertebrates
| Project/Area Number |
22570062
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Morphology/Structure
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| Research Institution | University of Toyama |
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Principal Investigator |
UCHIYAMA Minoru 富山大学, 大学院・理工学研究部(理学), 教授 (50095072)
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| Co-Investigator(Kenkyū-buntansha) |
KONNO Norifumi 富山大学, 大学院・理工学研究部(理学), 助教 (50507051)
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| Co-Investigator(Renkei-kenkyūsha) |
HYODO Susumu 東京大学, 大気海洋研究所, 准教授 (40222244)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 比較内分泌 |
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| Research Abstract |
Body fluid homeostasis, i.e. volume and composition of body fluids, is a dynamic physiological phenomenon in vertebrates. The amphibious fish, Andamia tetradactylus, and the crab-eating frog, Fejerbarya cancribora, inhabit in rocky shores and estuary areas, respectively. In this study, hydromineral hormones and components in their body fluid, and gene expressions of urea synthetic enzymes and urea transporter were examined. During exposure to air and seawater environments, synthesis and accumulation of urea were increased in the fish and frogs. Thus, urea accumulation is important in the osmoregulation in both species. Tadpoles of the crab-eating frog may also be depending on this osmoregulation in salt water adaptation.
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[Journal Article] J.M.P. The epithelial sodium channel in the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi)2012
Author(s)
Uchiyama, M., Maejima, S., Yoshie, S., Kubo, Y., Konno, N. and Joss
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Journal Title
Proceedings Royal Socity B Biological Science
Volume: 279
Pages: 4795-4802
DOI
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[Journal Article] Structures and immunolocalization of Na+,K+-ATPase, Na+/H+exchanger 3 and vascular-type H+-ATPase in the gills of blennies (Teleostei: Blenniidae) inhibiting rocky intertidal areas2012
Author(s)
Uchiyama, M., Komiyama., M, Yoshizawa, H., Shimizu, N., Konno, N., and Matsuda
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Journal Title
Journal of Fish Biology
Volume: 80
Pages: 2236-2252
DOI
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[Journal Article] Ontogeny of ENaC expression in the gills and teh kidneys of the Japanese black salamander (Hynobius nigrescens Stejneger)2011
Author(s)
Uchiyama, M., Kumano, T., Konno, N., Yoshizawa, H., and Matsuda, K
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Journal Title
Journal of Experimental Zoology, Molecular and Developmental Evolution
Volume: 314B
Pages: 135-145
DOI
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