Title: Phenoloxidase but not lytic activity reflects resistance against Pasteuria ramosa in Daphnia magna
Authors: Pauwels, Kevin ×
De Meester, Luc
Decaestecker, Ellen
Stoks, Robby #
Issue Date: 23-Feb-2011
Publisher: The Royal Society
Series Title: Biology Letters vol:7 issue:1 pages:156-159
Abstract: The field of ecological immunology strongly
relies on indicators of immunocompetence. Two
major indicators in invertebrates, the activity of
phenoloxidase (PO) and lytic activity have
recently been questioned in studies showing
that, across a natural range of baseline levels,
these indicators did not predict resistance against
a manipulated challenge with natural parasites.
We confirmed this finding by showing that baseline
levels of PO and lytic activity in the host
Daphnia magna were not related to spore load
of the parasite Pasteuria ramosa. Yet, PO levels
in infected hosts did predict spore load, indicating
PO activity can be useful as an indicator of
immunocompetence in this model parasite–host
ISSN: 1744-9561
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory for Aquatic Ecology and Evolutionary Biology (-)
Ecology, Evolution and Biodiversity Conservation Section
Faculty of Science, Campus Kulak Kortrijk
× corresponding author
# (joint) last author

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