Journal
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
Volume 183, Issue -, Pages 97-106Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbpa.2014.12.030
Keywords
Hemocyte; Hemocyte aggregates; Gills; Salinity; Antibacterial immunity; Crustacean immunity; Vibrio
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Funding
- NSF [IBN-0212921, IOS-1147008]
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1147008] Funding Source: National Science Foundation
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In addition to respiration and ion regulation, crustacean gills accumulate and eliminate injected particles, along with hemocyte aggregates that form in response to those particles. Here we report that the dose of Vibrio campbellii previously shown to induce a decrease in respiration and hemolymph flow across the gill in the Atlantic blue crab, Callinectes sapidus, also triggered the formation of aggregates containing four or more hemocytes in the gills, compared with saline-injected controls. More bacteria were trapped and rendered non-culturable per unit weight by anterior respiratory gills than posterior gills specialized for ion regulation. Further, more bacteria accumulated in the anterior gills of animals held at 30 ppt than those at 10 ppt Thus, the role of the gills in immune defense comes at an energetic cost to this and likely to other crustaceans; this cost is influenced by acclimation salinity and the position and specialized function of individual gills. (C) 2014 Elsevier Inc All rights reserved.
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