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Updated: Aug 25, 2026

Resurrection of Dormant Daphnia magna: Protocol and Applications
Published on: January 19, 2018
Molecular adaptation of Daphnia magna hemoglobin
Bettina Zeis1, Tobias Lamkemeyer, Rüdiger J Paul
1Institute of Zoophysiology, Westfälische Wilhelms-Universität, Hindenburgplatz 55, Münster 48143, Germany. zeis@uni-muenster.de
Abstract:
Daphnia magna responds to changing environmental conditions impeding aerobic metabolism by synthesizing hemoglobin of adequate quantity and quality to maintain oxygen supply of the tissues. Hemoglobin subunit composition and its oxygen affinity were analyzed as a function of temperature as well as depending on the oxygen partial pressure of the medium. Additionally, the time course of acclimation to hypoxia was studied. Correlating structural and functional changes, the role of individual subunits for the increase in oxygen affinity is discussed.
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