Endothermic oxygenation of hemocyanin in the krill Meganyctiphanes norvegica.

The oxygen affinity of the hemolymph of the krill Meganyctiphanes norvegica, increases with temperature in the pH range 7.4 to 8.1 reflecting an endothermic overall heat of reaction. This striking feature may be of adaptive significance with respect to the feeding excursions of the animal, which at...

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Bibliographic Details
Published in:FEBS Letters
Main Authors: Brix O., Borgund S., Barnung T., Giardina B., COLOSIMO, Alfredo
Other Authors: Brix, O., Borgund, S., Barnung, T., Colosimo, Alfredo, Giardina, B.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 1989
Subjects:
Hemocyanin
Respiratory metabolism
Oxygen binding
Meganyctiphanes norvegica
Online Access:http://hdl.handle.net/11573/472471
https://doi.org/10.1016/0014-5793(89)81328-6
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=A1989U575600003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a
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Summary:The oxygen affinity of the hemolymph of the krill Meganyctiphanes norvegica, increases with temperature in the pH range 7.4 to 8.1 reflecting an endothermic overall heat of reaction. This striking feature may be of adaptive significance with respect to the feeding excursions of the animal, which at night reaches the warmer phytoplankton-rich surface layers, where the oxygen availability is reduced due to increased temperature and photorespiration.

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