VASTA, G.R.*; AHMED, H.; QUESENBERRY, M.S.; ODOM, E.; O’LEARY, N.: Lectins in Protochordates and Teleost Fish: Structure-Function Relationships in Innate Immunity. The evolutionary position occupied by the protochordates, bridging invertebrates and vertebrates, suggests that these organisms may express extant examples of the most advanced defense mechanisms that preceded the advent of immunoglobulins. A diverse lectin […]

BAYNE, C.J.: Immuno-competence before the Paleozoic: how distinctive? In February 2002, a Keystone Symposium will be addressed by an eminent immunologist on the topic: Is adaptive immunity absolutely dependent on innate immunity? This reflects the phenomenal recent growth in appreciation for the innate arms of immune systems, and the realization that adaptive (lymphoid) immunity is […]

COOPER, E L: Comparative Immunology Comparative immunology, derived from zoology and immunology, examines immune systems during evolution. Invertebrate immunology, a branch begins analyses even with protozoans, capable of more phagocytosis! Now we know that they possess molecules with conserved sequences found in multicellular species (lysins in amoebas and interleukins in ciliates). Phagocytosis in invertebrates that […]

WEISSMAN, Irving L.: Biology, transplantation, and evolution of stem cells Prospective hematopoietic stem cells (HSC) isolation from mouse and man reveals increased information about their characteristics upon transplantation. HSC alone can quantitatively and rapidly reconstitute the hematolymphoid system of syngeneic and allogeneic hosts, the latter without graft vs. host disease caused by contaminating T cells […]

WEIDER, LJ; Univ. of Oklahoma: rDNA intergenic spacer (IGS) length variation and its significance for influencing growth and/or developmental rates of organisms. The ribosomal (r)DNA molecule is a multi-gene family, and in eukaryotes, consists of a transcription unit that includes the genes for 18S, 5.8S, and 28S rRNA subunits (�rrn� genes), the internal transcribed spacers […]

MARKOW, T; WATTS, T; University of Arizona; University of Arizona: The coupling of growth, RNA and DNA content, and C:N:P stoichiometry in Drosophila The growth rate hypothesis, that rapid growth is associated with high levels of phosphorus relative to nitrogen and high levels of RNA relative to DNA, was tested in three species of Drosophila […]

KUANG, Yang; Arizona State University, Tempe, AZ 85287: Stoichiometry and Biodiversity via Models and Simulations The competitive exclusion principle (CEP) states that no equilibrium is possible if n species exploit fewer than $n$ resources. This principle does not appear to hold in nature, where high biodiversity is commonly observed, even in seemingly homeogenous habitats. Although […]

STERNER, Robert W.; FORMAN, Rebecca; HENDRIXSON, Heather; HOOD, James; ZIMMER, Kyle; Univ. of Minnesota; Univ. of Minnesota; Univ. of Minnesota; Univ. of Minnesota; Univ. of Minnesota: Stoichiometric Patterns at the Small and the Large Scale We undertook several interconnected studies under the auspices of the IRCEB project. We reared Daphnia pulex in conditions of: high […]

SCHADE, John D.; KYLE, Marcia; HOBBIE, Sarah E.; FAGAN, William F.; ELSER, James J.; Arizona State University, Tempe, AZ; Arizona State University, Tempe, AZ; University of Minnesota, St. Paul, MN; University of Maryland, College Park, MD; Arizona State University, Tempe, AZ: Stoichiometric Interactions Between Desert Soils, Plants and Herbivores We studied C, N and P […]

TESSIER, A.; National Science Foundation: Overview of the NSF IRCEB and FIBR programs TBA