Ontogenetic changes in expression of putative amino acid transporter genes in sea urchins measured by immunoblotting

MEYER, E.*; HAAG, A.L.; MANAHAN, D.T.: Ontogenetic changes in expression of putative amino acid transporter genes in sea urchins measured by immunoblotting Changes in the kinetics of amino acid transport occur during sea urchin development, but little is known about the mechanisms of these physiological changes. Clones with strong sequence similarity to previously characterized amino […]

Genotype dependant utilization of lipid and protein reserves in oyster larvae

MOORE, M.; MANAHAN, D.T.: Genotype dependant utilization of lipid and protein reserves in oyster larvae Hybrid vigor (heterosis) is an important phenomenon in animals and plants that results in increased growth of offspring obtained from crossing inbred parents. The physiological bases for heterosis are not fully understood. Larvae of the Pacific Oyster Crassostrea gigas show […]

Free radical scavengers decrease toxic effects of hydrogen sulfide in vitro

GOODWIN, C.R.; DENZEL, S.A.; AMAN, S.A.; WOHLGEMUTH, S.E.; JULIAN, D.*: Free radical scavengers decrease toxic effects of hydrogen sulfide in vitro Hydrogen sulfide (H2S) is well known as a metabolic toxin that poisons mitochondrial cytochrome c oxidase. H2S occurs naturally in a number of marine environments and a variety of invertebrates have specific physiological adaptations […]

Cloning and Expression of an Echiuroid Lombricine Kinase

ELLINGTON, W.R.*; BUSH, J.: Cloning and Expression of an Echiuroid Lombricine Kinase Phosphagen kinases constitute a family of phosphoryl transfer enzymes which are widely distributed throughout the animal kingdom. Among these, creatine kinase (CK) and arginine kinase (AK) have been the most extensively studied. Lombricine kinase (LK) catalyzes the phosphorylation of lombricine (guanidinoethylphospho-O-serine) to lombricine […]

Cerebratulus lacteus Body Wall and Neural Hemoglobins Associate to Form Dimers or Tetramers

PAGE, A.J.*; MCNEILL, J.M.; VANDERGON, T.L.; RIGGS, C.K.; RIGGS, A.F.: Cerebratulus lacteus Body Wall and Neural Hemoglobins Associate to Form Dimers or Tetramers. The nemertean Cerebratulus lacteus expresses hemogobin (Hb) in neural and body wall muscle tissues. Each tissue expresses a unique globin from separate genes encoding proteins with 109 amino acid residues, making them […]

The effect of the free water surface on animals that jump out of water

GOLDMAN, J.A.: The effect of the free water surface on animals that jump out of water As an animal such as a dolphin, fish, or penguin jumps out of water, it passes through a complex hydrodynamic regime where the viscous, inertial, and gravitational forces act on its body in an uncertain way. I explored two […]

The Articular Cartilage of Extant Archosaur Limb Bones Implications for Dinosaur Functional Morphology and Allometry

HOLLIDAY, C.M.; RIDGLEY, R.C.; SEDLMAYR, J.C.; WITMER, L.M.: The Articular Cartilage of Extant Archosaur Limb Bones: Implications for Dinosaur Functional Morphology and Allometry Extinct archosaurs show variably ossified limb bones implying differing amounts of unpreserved articular cartilage. This “lost anatomy” is underappreciated such that the ends of bones are often considered as joint surfaces, potentially […]

Slip slidin’ away Comparative kinematics of two sand dwelling lizard species

KORFF, W.L.: Slip slidin’ away: Comparative kinematics of two sand dwelling lizard species Convergence of morphological characters in similar environments is often cited as an indicator of morphological adaptation. Comparative studies that are designed to elucidate relationships between morphology and performance can strengthen conclusions of adaptive convergence that are based solely on correlation. Lizards with […]

Running on water quantitative flow visualization of basilisk lizard locomotion

HSIEH, S.T.*; LAUDER, G.V.: Running on water: quantitative flow visualization of basilisk lizard locomotion Previous work on water surface locomotion in basilisk lizards has focused on limb kinematics and mechanical models of force generation. Nothing is known about the effect of limb motion on subsurface water flow and the orientation of forces resulting from limb […]

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