Arid
DOI10.1016/S1095-6433(02)00115-0
The 70-kDa heat shock protein response in two intertidal sculpins, Oligocottus maculosus and O-snyderi: relationship of hsp70 and thermal tolerance
Nakano, K; Iwama, GK
通讯作者Nakano, K
来源期刊COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
ISSN1095-6433
EISSN1531-4332
出版年2002
卷号133期号:1页码:79-94
英文摘要

The role that hsp70 plays in influencing thermal tolerance of a whole animal is not clearly understood. We explored this question by examining liver hsp70 response in the tidepool sculpin (Oligocottus maculosus) and fluffy sculpin (O. snyderi), which have distinct distribution patterns in the intertidal zone. The tidepool sculpin is in upper and lower tidepools, while the fluffy sculpin is exclusively in lower tidepools during a low tide. We conducted experiments in order to investigate: (1) habitat water temperatures; (2) upper thermal tolerance limits; (3) the cellular hsp70 response to changes in water temperature in nature; (4) induction temperatures for hepatic hsp70 and hsp70 mRNA; and (5) effects of long-term heat stress on liver hsp70 levels, in these sculpins. Accordingly, we found: (1) the tidepool sculpin was exposed to a wider temperature range in nature; (2) the tidepool sculpin had higher lethal and induction temperatures for hsp70; (3) the liver hsp70 level of the tidepool sculpin was less sensitive to changes in water temperatures; and (4) the tidepool sculpin had higher constitutive hsp70 levels in nature, compared with the fluffy sculpin. From these results, we proposed that the less thermally sensitive tidepool sculpin may enhance its thermal tolerance by having a large pool of cellular hsp70, thus allowing it to inhabit the upper intertidal zone with relatively large and unpredictable fluctuations in environmental variables. (C) 2002 Elsevier Science Inc. All rights reserved.


英文关键词cellular heat shock response fish 70-kDa heat shock protein intertidal zone liver sculpins thermal tolerance vertical distribution
类型Article
语种英语
国家Canada
收录类别SCI-E
WOS记录号WOS:000177608500007
WOS关键词SNAILS GENUS TEGULA ; MOLECULAR CHAPERONES ; VERTICAL-DISTRIBUTION ; PORCELAIN CRABS ; STRESS-RESPONSE ; RAINBOW-TROUT ; TEMPERATURE ; FISHES ; DESERT ; THERMOTOLERANCE
WOS类目Biochemistry & Molecular Biology ; Physiology ; Zoology
WOS研究方向Biochemistry & Molecular Biology ; Physiology ; Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/142351
作者单位(1)Univ British Columbia, Fac Agr Sci & Aquanet, Vancouver, BC V6T 1Z4, Canada;(2)Natl Res Council Canada, Inst Marine Biosci, Halifax, NS B3H 3Z1, Canada
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Nakano, K,Iwama, GK. The 70-kDa heat shock protein response in two intertidal sculpins, Oligocottus maculosus and O-snyderi: relationship of hsp70 and thermal tolerance[J],2002,133(1):79-94.
APA Nakano, K,&Iwama, GK.(2002).The 70-kDa heat shock protein response in two intertidal sculpins, Oligocottus maculosus and O-snyderi: relationship of hsp70 and thermal tolerance.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY,133(1),79-94.
MLA Nakano, K,et al."The 70-kDa heat shock protein response in two intertidal sculpins, Oligocottus maculosus and O-snyderi: relationship of hsp70 and thermal tolerance".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY 133.1(2002):79-94.
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