CHAN, S.-M.; The University of Hong Kong: VITELLOGENESIS IN THE SHRIMP Metapenaeus ensis : MOLECULAR AND BIOCHEMICAL CHARACTERIZATION OF VITELLOGENINS The vitellin from M. ensis was purified and used to raise vitellin antibody. Several ovary polypeptides with large molecular weight (157, 78, 76 kDa) were identified as major vitellogenin subunits. Vitellogenin immunopositve signals could be […]

OLSON, C. R.; VLECK, C. M.; VLECK, D.; Iowa State University; Iowa State University; Iowa State University: Transient Thermal Fluctuations in Avian Eggs and their Implications for Growth and Ontogeny of Metabolism For bird embryos, episodic cooling that occurs when the incubating adult leaves the nest to forage is a fact of life for many […]

STEWART-SAVAGE, J*; COLE, BJ; Univ. New Orleans; DMC, Univ. of Maine: Ovarian Development in the Colonial Ascidian Botryllus schlosseri Botryllus schlosseri has a cyclic life history where all of the adult zooids are simultaneously replaced and all zooids can be reproductive. The ovary in the embryonic zooid is initially formed by the migration of oocytes […]

STRATHMANN, Richard R.; STRATHMANN, Megumi F.; HADFIELD, Michael G.; University of Washington; University of Washington; University of Hawaii: Nurse Egg Feeding Enhanced by Developmental Arrest of Sibling Veligers A complex form of adelphophagy, with nurse egg feeding by some siblings and arrested growth at the veliger stage for others, occurs in the brooded capsules of […]

SALVANTE, K.G.*; WALZEM, R.L.; WILLIAMS, T.D.; Simon Fraser Univ., Burnaby, BC,Canada; Texas A&M Univ., College Station; Simon Fraser Univ., Burnaby, BC, Canada: Differential allocation of lipid resources during avian egg production During avian egg production, hepatic lipid production increases markedly as very-low density lipoprotein (VLDL) synthesis shifts from the exclusive production of larger, generic VLDL, […]

DAVENPORT, I.R.; WOURMS, J.P.; Clemson University: A novel actin-based framework aids in the evolution of extreme egg size in chondrichthyan fishes. Of the 1200 species of chondrichthyan fishes, approximately 60% are viviparous. Typically they have low fecundity but compensate with large precocial offspring. Large offspring can be produced by: 1. lecithotrophy, where the developing embryo […]

STEWART, J.R.*; THOMPSON, M.B.; ATTAWAY, M.B.; HERBERT, J.F.; MURPHY, C.R.; East TN State Univ; Univ of Sydney; East TN State Univ; Univ of Sydney; Univ of Sydney: Uptake of Dextran-FITC by Placental Membranes of the Placentotrophic Lizard, Pseudemoia entrecasteauxii Placental nutrient provision has evolved in multiple lineages of squamate reptiles and although possible structural specializations […]

SPAETHE, Johannes; BRISCOE, Adriana* D.; University of California, Irvine ; University of California, Irvine: Ultraviolet opsin molecular characterization and expression: Three ommatidial subtypes in the retina and a new photoreceptor organ in the brains of bees Ultraviolet-sensitive photoreceptors have been shown to be important for a variety of visual tasks performed by bees, such as […]

ROWE, T. B.; MACRINI, T. E. ; EITING, T. P.; KETCHAM, R. A.; Jackson School of Geosciences, The University of Texas at Austin, Austin, Texas 78712: The Olfactory and Respiratory Skeleton in the Nose of the Opossum Monodelphis domestica The internal nasal skeleton in Monodelphis (www.DigiMorph.org) supports olfactory and respiratory epithelia, the vomeronasal organ, and […]

VEILLETTE, P.A.; GARCIA, M.M.; SPECKER, J.L.; University of Rhode Island: Immunolocalization of corticosteroid receptor with proliferating cell nuclear antigen and proton pump during stomach formation in metamorphosing summer flounder. Formation of gastric glands is a hallmark of stomach development during larval metamorphosis of the gastric marine teleosts. Organogenesis occurs in an orderly progression of epithelial […]