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Article: Variations in cardiac performance and heat shock protein expression to thermal stress in two differently zoned limpets on a tropical rocky shore

TitleVariations in cardiac performance and heat shock protein expression to thermal stress in two differently zoned limpets on a tropical rocky shore
Authors
KeywordsAdaptation
Climate change
Heat shock
Marine ecosystem
Performance assessment
Issue Date2011
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00227/index.htm
Citation
Marine Biology, 2011, v. 158 n. 6, p. 1223-1231 How to Cite?
AbstractUnderstanding variation in physiological adaptations to thermal stress is vital when investigating intertidal species' distribution patterns. The thermal sensitivities of two limpets, Cellana grata and C. toreuma, differed in accordance with their vertical distributions. Cardiac performance was maintained at higher temperatures (~47°C) for the high-zone C. grata than the mid-zone C. toreuma (~42°C). At 40°C, C. grata maintained regular heart function for ~4 h, while heart function of C. toreuma decreased rapidly. Heat shock protein expression revealed that C. toreuma had two constitutive isoforms, Hsp77 and Hsp72, and C. grata one inducible form, Hsp75, which was upregulated at 40°C, suggesting C. grata has a more effective heat shock response than C. toreuma. The temperature-adaptive differences in cardiac thermal tolerance and Hsp expression match observed differences in thermally induced mortalities with the onset of summer and may help predict differential effects of climate change on the two congeners. © 2011 Springer-Verlag.
Persistent Identifierhttp://hdl.handle.net/10722/138030
ISSN
2015 Impact Factor: 2.375
2015 SCImago Journal Rankings: 1.302
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
National Natural Science Foundation of China41076083
Fundamental Research Funds for the Central Universities201012028
Funding Information:

YD was supported by a Sino-British Fellowship Trust Visitorship awarded by The University of Hong Kong, National Natural Science Foundation of China (41076083) and the Fundamental Research Funds for the Central Universities (201012028). We thank Stephen Cartwright for his help in specimen collection, Wai Chuen Ng and Priscilla Leung (all SWIMS) for their help in heat shock protein assay and David Marshall (Universiti Brunei Darussalam) for his suggestions in heart rate measurement. We are also grateful to Tomoyuki Nakano (Museum of National History of Japan) for sharing information on the phylogeography of the two species and especially appreciate comments from Prof. George Somero (Hopkins Marine Station, Stanford University), Prof Hans-Otto Portner (Alfred Wegener Institute for Polar and Marine Research, Germany) and three referees, which have improved the manuscript.

References

 

DC FieldValueLanguage
dc.contributor.authorDong, Yen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2011-08-26T14:38:51Z-
dc.date.available2011-08-26T14:38:51Z-
dc.date.issued2011en_HK
dc.identifier.citationMarine Biology, 2011, v. 158 n. 6, p. 1223-1231en_HK
dc.identifier.issn0025-3162en_HK
dc.identifier.urihttp://hdl.handle.net/10722/138030-
dc.description.abstractUnderstanding variation in physiological adaptations to thermal stress is vital when investigating intertidal species' distribution patterns. The thermal sensitivities of two limpets, Cellana grata and C. toreuma, differed in accordance with their vertical distributions. Cardiac performance was maintained at higher temperatures (~47°C) for the high-zone C. grata than the mid-zone C. toreuma (~42°C). At 40°C, C. grata maintained regular heart function for ~4 h, while heart function of C. toreuma decreased rapidly. Heat shock protein expression revealed that C. toreuma had two constitutive isoforms, Hsp77 and Hsp72, and C. grata one inducible form, Hsp75, which was upregulated at 40°C, suggesting C. grata has a more effective heat shock response than C. toreuma. The temperature-adaptive differences in cardiac thermal tolerance and Hsp expression match observed differences in thermally induced mortalities with the onset of summer and may help predict differential effects of climate change on the two congeners. © 2011 Springer-Verlag.en_HK
dc.languageengen_US
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00227/index.htmen_HK
dc.relation.ispartofMarine Biologyen_HK
dc.rightsThe original publication is available at www.springerlink.com-
dc.subjectAdaptation-
dc.subjectClimate change-
dc.subjectHeat shock-
dc.subjectMarine ecosystem-
dc.subjectPerformance assessment-
dc.titleVariations in cardiac performance and heat shock protein expression to thermal stress in two differently zoned limpets on a tropical rocky shoreen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0025-3162&volume=158&issue=6&spage=1223&epage=1231&date=2011&atitle=Variations+in+cardiac+performance+and+heat-shock+protein+expression+to+thermal+stress+in+two+differently+zoned+limpets+on+a+tropical+rocky+shore-
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00227-011-1642-6en_HK
dc.identifier.scopuseid_2-s2.0-79957524397en_HK
dc.identifier.hkuros190673en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79957524397&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume158en_HK
dc.identifier.issue6en_HK
dc.identifier.spage1223en_HK
dc.identifier.epage1231en_HK
dc.identifier.isiWOS:000290806500004-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridDong, Y=13612033100en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK
dc.identifier.citeulike8908120-

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