Browsing by Department "Biology and Biochemistry, Department of"
Now showing items 1-20 of 646
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A Black Death: Can Relic Oysters Be Used in Restoration Efforts?
(2018)The eastern oyster, Crassostrea virginica, plays an important role in estuarine ecosystems, but populations have been decimated compared to historic levels. Large storm events, including hurricanes, periodically eliminate ... -
A characterization of the ribonucleic acid and ribosomes of the Myxomycete Physarum rigidum
(1968)Plasmodium of Physarum rigidum A was grown in axenic shake culture at 24[degrees]C in a soluble semi-defined medium. Aliquots were removed at 24 hour intervals and measured for dry weight, protein and RNA content. By day ... -
A colorimetric method for the assay of streptomycin
(1952)Chemical methods for the assay of streptomycin and dihydrostretptomycin were investigated and some that have survived trial were described. Due to their inadequacies it seemed feasible to investigate the possibilities of ... -
A comparative physiological study on the resting cell metabolism of Azotobacter vinelandii grown under nitrogen-fixing and nonnitrogen-fixing conditions
(1972)The respiratory activity of Azotobacter vinelandii strain 0 was examined for whole cells grown on either acetate or sucrose with varying sources of nitrogen, i.e, atmospheric nitrogen, nitrate, or ammonium ion. Oxygen ... -
A comparison of contractile proteins from muscle and non-muscle systems
(1976)A review of the literature dealing with contractile protein in muscle and non-muscle systems was done. Proteins resembling the major proteins of the muscle contractile system, actin and myosin, have been found in several ... -
A comparison of the changes in biochemistry and plastid ultrastructure during the development of green and albino genetical strains of Nicotiana tabacum
(1969)The development of highly isogenic green and albino strains of Nicotlana tabacum was coropared, A method of growing albino plants in bulk under asceptic conditions in culture was devised. This allowed greater growth than ... -
A comparison of tyrosyl-tRNA synthetase of free-living and symbiotic Rhizobium species
(1976)Tyrosyl-tRNA synthetase was studied in partially purified extracts of free-living and symbiotic Rhizobium meliloti F-28 and Rhizobium japonicum 705. Certain differences in the properties of the enzymes were observed between ... -
A fine structural analysis of the foregut of the tardigrade Milnesium tardigradum (Doyere)
(1972)The fine structure of the foregut of the tardigrade Milnesium tardigradum is presented. The analysis covers the structures of the anterior foregut, including the oral region, buccal tube and salivary gland, the pharynx and ... -
A fine structural investigation of oogenesis in the brown shrimp Penaeus aztecus
(1974)The ovary of Pennons aztecus is located in the dorsal cephalothorax and consists of anterior, lateral, and posterior lobes. Follicular egg development is exhibited, with the follicular cell layer present until spawning. ... -
A fine structural study of sperm differentiation and the effects of colchicine on sperm morphology in Nematospiroides dubius
(1974)An ultrastructural study of N. dubius sperm differentiation and the effects of colchicine on this process are presented. The spermatogonia and primary spermatocytes are attached to a cytoplasmic nucleated rachis. Early ... -
A gas chromatographic-mass spectrometric and stable carbon isotope ratio study of organic pollution in Clear Lake and its tributaries
(1973)Water samples were collected from Clear Lake and three of its major tributaries and subjected to solvent extraction. The volatile organic compounds were analyzed by gas chromatography-mass spectrometry and as many as ... -
A Genome-Wide Search for Tumor Suppressor MicroRNAs in Ovarian Cancer
(2014-08)Ovarian cancer is one of the most lethal cancers among women. The Cancer Genome Atlas (TCGA) is a collaborative effort, which seeks to characterize the complete set of molecular changes associated with cancer and provide ... -
A gross, histological and cytological study of the liver of Talapia nilotica
(1973)Examination of the liver of Tilapia nilotica has shown that classical hepatic circulatory organization is not present in this animal, hepatocytes are densely distributed throughout the organ in plates of two cells in ... -
A list of some of the vertebrates of Harris County, Texas
(1949)Lists of the vertebrate animals of Harris County, Texas, exclusive of the fish, birds, and marine mammals have been presented. These lists were compiled from published records, collections, and personal field work. Each ... -
A long-acting Betaarrestin “biased� agonist to selectively activate AT1R to confer cardioprotection during heart failure and COVID-19 cardiovascular complications.
(2022-04-14)In patients with Heart Failure (HF) and COVID-19 induced HF, the principal hallmark is a depressed cardiac ejection fraction. Cardiac contractility is mediated through G-Protein Coupled Receptors (GPCR). A critical cardiac ... -
A mechanism for the sucrose stimulation of the genetic transformation of Bacillus subtilis
(1976)A study of the sucrose stimulation of genetic transformation in Bacillus subtilis has presented experimental evidence related to the part played by the cytoplasmic membrane and mesosomes in the binding of transforming ... -
A neurochemical and neuropharmacological analysis of the mode of action of methylphenidate
(1974)The neuropharmacological and neurochemical effects of methylphenidate have been examined both in vivo and in vitro. A stimulation of histamine receptors by methylphenidate was demonstrated in a rat fundus preparation. ... -
A new method of assessing adrenal medullary release utilizing the cardiovascular system of the rat
(1975)A new method of evoking and assessing adrenal medullary amine release has been developed utilizing pithed rats and whole left adrenal gland field stimulation. The stimulus-induced release was assessed by comparing the rise ...