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Browsing BIO Faculty Scholarship by Issue Date

Browsing BIO Faculty Scholarship by Issue Date

Now showing items 1-20 of 176

Tryptophan and serotonin metabolism after sustained tryptophan infusion

Peters, Ralph I.; Buhr, Bruce R. (Elsevier, 1984)

In an attempt to elucidate the effects of sustained administration of tryptophan on serotonin synthesis and turnover in mammalian brain, mini-osmotic pumps containing tryptophan or vehicle were implanted in albino mice for ...
Segregant-defective heterokaryons of Candida albicans

Sarachek, Alvin; Weber, David A. (Springer, 1986)

Heterokaryons (hets) of the asexual, pathogenic yeast Candida albicans obtained by fusing protoplasts of complementing auxotrophic strains generate large numbers of parental-type auxotrophic monokaryons by random assortment ...
Isolation and Characterization of Coproporphyrin Produced by Four Subspecies of Bacillus thuringiensis

Harms, R. L.; Martinez, D. R.; Griego, V. M. (American Society for Microbiology, 1986-03)

It was found by using spectrophotometric, spectrofluorometric, and high-pressure liquid chromatography that four subspecies of Bacillus thuringiensis produce coproporphyrin. The porphyrin isomer was identified as coproporphyrin ...
Changes in oviducal vascularity during the reproductive cycle of three oviparous lizards (Eumeces obsoletus, Sceloporus undulatus and Crotaphytus collaris)

Masson, G. R.; Guillette, Louis J. (Society for Reproduction and Fertility, 1987-07)

Histologically derived estimates and ink suspension vascular casts were used to examine oviducal vascular changes. Vascularity peaked during gravidity and was correlated with maximal plasma progesterone concentrations. The ...
Luteal morphology, atresia, and plasma progesterone concentrations during the reproductive cycle of two oviparous lizards, Crotaphytus collaris and Eumeces obsoletus

Fox, Sandra L.; Guillette, Louis J. (John Wiley & Sons, 1987-08)

From ovulation to oviposition, the corpora lutea of the oviparous lizards Crotaphytus collaris and Eumeces obsoletus exhibit three stages of luteal development: 1) luteogenesis, 2) luteal maturity, and 3) luteal regression. ...
Feeding evoked by electrical stimulation in collared lizards

Sugerman, Richard A. (Elsevier, 1988)

Feeding was evoked in collared lizards, Crotaphytus collaris, using electrical stimulation of the brain (ESB). Stimulation sites were tested in the forebrain and midbrain of 39 animals. Six stimulation loci were localized ...
Variations for susceptibilities to ultraviolet induced cellular inactivation and gene segregation among protoplast fusion hybrids of Candida albicans

Sarachek, Alvin; Henderson, Lori A. (University of Cambridge * Faculty Press, 1988)

Hybrids of the naturally diploid, asexual and opportunistically pathogenic yeast, Candida albicans, can be obtained artificially by protoplast fusion. Evidence is presented that gene conversion and reciprocal recombination ...
Hyperphenylalaninemia in the hph-1 mouse mutant

McDonald, J. David; Bode, Vernon C. (International Pediatrics Research Foundation, 1988-01)

A mutation, resulting in a deficiency of liver GTP-cyclohydrolase activity, has been induced in the laboratory mouse. Mice homozygous for this mutation exhibit hyperphenylalaninemia under the following conditions: 1) early ...
Hph-1: A mouse mutant with hereditary hyperphenylalaninemia induced by ethylnitrosourea mutagenesis

Bode, V. C.; McDonald, J. David; Guenet, J. L.; Simon, D. (PubMed, 1988-02)

Ethylnitrosourea mutagenesis of spermatogonial stem cells and a three-generation breeding scheme were used to screen for recessive mutations that cause defects in phenylalanine metabolism leading to elevated serum levels ...
Biochemical defect of the hph-1 mouse mutant is a deficiency in GTP-cyclohydrolase activity

McDonald, J. David; Cotton, R. G.; Jennings, I.; Ledley, F. D.; Woo, S. L.; Bode, V. C. (PubMed, 1988-02)

A hyperphenylalaninemic mouse mutant, hph-1, has been identified in the progeny of mice treated with the mutagen ethylnitrosourea. Phenylalanine hydroxylase activity levels in mutant liver lysates are reduced relative to ...
Unidirectional internuclear transfer of linked genes in heterokaryons of Candida albicans

Sarachek, Alvin; Lovchik, J. A. (Wiley - V C H Verlag GmbH & Co. KGaA, 1989)

Nutritionally balanced heterokaryons of the naturally diploid, asexual yeast, Candida albicans are produced by fusing protoplasts of complementing auxotrophic strains. Spontaneous unidirectional internuclear transfers of ...
Diversity of Coprophagous Scarabaeidae (Coleoptera) in Grazed Versus Ungrazed Sandhills Prairie in Western Nebraska

Jameson, Mary Liz (1989)

Baited pitfall traps were used to compare the dung-feeding Scarabaeidae (Coleoptera) of a grazed versus ungrazed sandhills prairie in western Nebraska. Traps yielded 14,832 coprophagous Scarabacidac over a 4-week sampling ...
Anaerobically induced production of hybrid monokaryons by heterokaryons of Candida albicans

Sarachek, Alvin (Springer Netherlands, 1989-01)

During aerobic replication, balanced heterokaryons (hets) of Candida albicans produced by fusing protoplasts of complementing auxotrophic strains characteristically segregate low frequencies of prototrophic monokaryons ...
A Synopsis of the Genus Areoda (Coleoptera: Scarabaeidae: Rutelinae)

Ratcliffe, Brett C.; Jameson, Mary Liz (The Coleopterists Society, 1989-06)

The three species in the genus Areoda are reviewed for the first time. The genus is characterized, a key to species is provided, each species is described, spatial and temporal distributions are given, and the biogeography ...
A New Species of Pelidnota (Coleoptera: Scarabaeidae: Rutelinae) from Panama

Ratcliffe, Brett C.; Jameson, Mary Liz (The Coleopterists Society, 1989-09)

Pelidnotah irsutiphallica new species, is described as new from Colón and Bocas del Toro provinces in Panama. It is incorporated into the most recent key to the genus and distinguished from its congeners.
Video microscopy: system calibration for densitometric analysis

Lavia, L. A. (Informa Healthcare, 1989-10)
Experimental histoplasmosis in the mouse. Immunoglobulin class response, total immunoglobulin A levels, immune complex formation, and occurrence of antigen in serum and urine

Sweet, George H.; Dulohery, Susan M. (American Thoracic Society, 1989-10)

Biotin-avidin enzyme-linked immunosorbent assays (ELISA) were developed to study the appearance of free antibody of the IgM, G, and A classes of immune complexes (IC) containing those classes and of antigen in the serum ...
Pahhph-5: a mouse mutant deficient in phenylalanine hydroxylase

McDonald, J. David; Bode, V. C.; Dove, W. F.; Shedlovsky, A. (PubMed, 1990-03)

Mutant mice exhibiting heritable hyperphenylalaninemia have been isolated after ethylnitrosourea mutagenesis of the germ line. We describe one mutant pedigree in which phenylalanine hydroxylase activity is severely deficient ...
Recombinagenicity of caffeine for Candida albicans

Sarachek, Alvin; Henderson, Lori A. (SpringerSpringer Netherlands, 1990-05)

Caffeine at concentrations of 0.5 x 10(-2) M or higher inhibited cell replication and induced gene segregations in Candida albicans cultured on defined complete medium. Both responses increased incrementally with increasing ...
Characterization of the corticosteroid-binding globulin messenger ribonucleic acid response in the pregnant hamster

Lin, Guang-Xiong; Selcer, Kyle W.; Beale, Elmus G.; Gray, Gray O.; Leavitt, Wendell W. (The Endocrine Society, 1990-10)

In this study we measured corticosteroid-binding globulin (CBG) mRNA levels in liver and various nonhepatic tissues of pregnant and nonpregnant hamsters. The N-terminal amino acid sequence (37 residues) of hamster CBG was ...