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Genetic structure of a natural population of Dictyostelium discoideum, a cellular slime mould
Dictyostelium discoideum is a eukaryotic microbe feeding on soil bacteria. A first step towards describing the genetic structure of populations of this species was made by examining multiple isolatesExpand
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Development of a new transformation-competent artificial chromosome (TAC) vector and construction of tomato and rice TAC libraries
Recent research has shown that BIBAC (binary bacterial artificial chromosome) and TAC (transformation-competent artificial chromosome) vector systems are very useful tools for map-based cloning ofExpand
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Antibody repertoire development in fetal and newborn piglets, III. Colonization of the gastrointestinal tract selectively diversifies the preimmune repertoire in mucosal lymphoid tissues
Changes in the VH‐region repertoire of isolator piglets reared for 6 weeks under germ‐free (GF) conditions and those colonized (COL) with a defined exclusion flora on the 1st day of life wereExpand
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The piglet as a model for B cell and immune system development
Abstract The ability to identify factors responsible for disease in all species depends on the ability to separate those factors which are environmental from those that are intrinsic. This isExpand
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Vasoconstrictors in Spinal Anesthesia with Tetracaine—A Comparison of Epinephrine and Phenylephrine
A randomized double-blind, study was conducted in 50 orthopedic patients to determine the effect of epinephrine and phenylephrine on the anesthetic properties of intrathecally administeredExpand
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B-chromosome systems in the greater glider, Petauroides volans (Marsupialia: Pseudocheiridae). II. Investigation of B-chromosome DNA sequences isolated by micromanipulation and PCR.
B chromosomes, despite their common occurrence throughout the animal and plant kingdoms, have not been investigated extensively at the molecular level. While the majority of B chromosomes occurringExpand
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Plasmapheresis for severe, unremitting, chronic urticaria
Histamine-releasing autoantibodies have been identified in chronic idiopathic urticaria. 8 patients with severe disease and histamine-releasing activity in their sera underwent plasmapheresis.Expand
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Mating types in cellular slime molds.
Abstract We have discovered mating types in three species of cellular slime mold. One of these species is Dictyostelium discoideum , hitherto the subject of extensive biochemical investigations, andExpand
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Macrocyst genetics in Polysphondylium pallidum, a cellular slime mould.
  • D. Francis
  • Biology, Medicine
  • Journal of general microbiology
  • 1 August 1975
The discovery of two mating types in the cellular slime mould Polysphondylium pallidum is reported. Two developmental mutants produced in strains of opposite mating type but which do not proceed pastExpand
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Acrasin and the development of Polysphondylium pallidum.
  • D. Francis
  • Biology, Medicine
  • Developmental biology
  • 1 December 1965
Abstract A method is described for measuring the rate of acrasin production of a point source. The method consists of placing the source among a population of amoebae spread on a coverslip, thenExpand
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