RO, J.*; MUNOZ-GARCIA, A.; BROWN, J.C.; WILLIAMS, J.B.; Ohio State Univ.; Ohio State Univ.; Applied Biosystem, MA.; Ohio State Univ.: Identification of Complex Mixtures of Sphingolipids in the Stratum Corneum by Reverse Phase High Performance Liquid Chromatography and Atmospheric Pressure Photospray Ionization Mass Spectrometry Characterized by a fatty acid moiety bound to a sphingosine base, […]

GAINEY, L.F., Jr*; GREENBERG, M.J.; Univ. of Southern Maine, Portland; C.V. Whitney Lab, Univ. of Florida, St. Augustine: Hypoxia abolishes potentiation of the gill muscles in the clam Mercenaria mercenaria Earlier we showed that when the gill muscles of the clam Mercenaria mercenaria are stimulated to contract by 5-hydroxytryptamine (5HT), the contraction is about doubled […]

MUIR, T.J.*; COSTANZO, J.P.; LEE , R.E.; Miami University; Miami University; Miami University: Hypometabolism induced by urea in a terrestrially-hibernating frog Accumulation of urea in defense of body water is an adaptation present in a diverse array of ureotelic animals. Some authors have proposed that urea may contribute to a metabolic depression in hyperuremic animals […]

LIANG, Wenbin*; WANG, Rui; Department of Physiology, University of Saskatchewan,Saskatoon,Canada; Department of Physiology, University of Saskatchewan, Saskatoon,Canada: Hydrogen sulfide-modulated calcium homeostasis in pancreatic beta cells Hydrogen sulfide (H2S) is endogenously produced in pancreatic beta cells, but its physiological roles in regulating beta cell function are unclear. In the present study, INS-1E cells (a pancreatic beta […]

HAHN, Thomas P*; BREUNER, Creagh W; Univ. of California, Davis; Univ. of Texas, Austin: How does the acute adrenocortical stress response relate to fitness? The acute adrenocortical response to stress presumably has adaptive value to free-living animals, but precisely how it relates to fitness remains uncertain. Field studies focusing on the acute response generally do […]

MALUEG, A. L.*; MOORE, I. T.; WALTERS, J. R.; Virginia Polytechnic and State University; Virginia Polytechnic and State Univeristy; Virginia Polytechnic and State University: Hormonal differences between helpers and breeders in a cooperatively breeding bird Red-cockaded woodpeckers (Picoides borealis) are cooperative breeders, living in family groups that consist of a breeding pair and zero to […]

OLSON, Christopher R.*; VLECK, Carol M.; VLECK, David; Iowa State University, Ames: Growth costs increase with periodic cooling in house wren eggs Avian embryos of many species grow rapidly, even in the face of periodic drops in egg temperature when the adult leaves the nest to forage. Consequences of obligatory bouts of cooling for embryonic […]

FRANK, D.M.; DEATON, L.E.*; WARD, J.E.; SHUMWAY, S.E.; University of Connecticut, Groton; University of Louisiana at Lafayette; University of Connecticut, Groton; University of Connecticut, Groton: Gill cilia in the blue mussel, Mytilus edulis: Effects of neurotransmitters and calcium blockers It is generally accepted that the lateral cilia of the gills of bivalve molluscs are inhibited […]

KENDALL, Lindsay R.*; MCMULLIN, Erin; MARSH, Adam G.; University of Delaware; University of Delaware; University of Delaware: Genome methylation patterns during early development in the Antarctic sea urchin, Sterechinus neumayeri Some polar-adapted marine invertebrates such as the Antarctic sea urchin Sterechinus neumayeri exhibit slow rates of development with extended cell-cycle periods (> 12 h). This […]

ANDRZEJEWSKI, JE*; BRIGGS, LE; JOYNER-MATOS, JL; JULIAN, D; Univ. of Florida, Gainesville: Functional responses to high temperature, hypoxia, and hyposalinity in the stress-tolerant clam Mercenaria mercenaria Mercenaria mercenaria, an estuarine clam, tolerates high temperature, hypoxia and hyposalinity, but it is unknown how these stressors affect functional responses such as condition index (tissue mass:shell volume), ability […]