Browsing by Subject "Major biology "
Now showing items 1-20 of 55
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(Texas A&M University. Libraries, 1994)Wild-type cells of Paramecium teiraurelia have been studied to determine if easily quantifiable biomarkers could be found to change with age. These same biomarkers were then measured using the ftA 3 mutant, one of a class ...
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(Texas A&M University. Libraries, 1990)
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(Texas A&M University. Libraries, 1995)DNA elements involved in the tissue-specific expression of two sunflower helianthinin genes were identified by analysis of B-glucuronidase (GUS) expression in transgenic tobacco driven by sequences derived from the 5' ...
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(Texas A&M University. Libraries, 1996)The carrot gene Dc3 is expressed in developing seeds and in vegetative tissues in response to drought and exogenous abscisic acid (ABA). To identify the cis-elements involved in seed-specific expression as well as ABA ...
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(Texas A&M University. Libraries, 1995)The chemoreceptors of the enteric bacteria Escherichia coli allow the organism to monitor its environment and to migrate to more favorable surroundings. This system provides an easily accessible model for ligand reception ...
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(Texas A&M University. Libraries, 1981)This study was designed to assess the feasibility of using certain biochemical parameters as indices of stress in marine invertebrates. Sandworms Neanthes (*Nereis) virens (Sars) were subjected to various types and degrees ...
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(Texas A&M University. Libraries, 1993)The ability to engineer resistance to plant viral infection to food crops represents a milestone in plant molecular biology. Successful approaches in transgenic plants have expressed a portion of the pathogen's own genome ...
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(Texas A&M University. Libraries, 1994)To better understand the events which lead to the formation of Rhizobium-induced root nodules, this research examined the developmental changes in the plant cell wall during the early interactions between Rhizobium and ...
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(Texas A&M University. Libraries, 1990)Genes and gene products encoded by the central part of the F transfer region (between traC and traF) were investigated. The nucleotide sequence of the entire region was determined and all gene products were identified and ...
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(Texas A&M University. Libraries, 1970)It is proposed that the central nervous system and its components, because of their intimate and delicate relationship, to the remainder of the organism, remain free of trivial variation during normal ontogeny but, at the ...
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(Texas A&M University. Libraries, 1980)The desmid populations at 217 locations in 27 counties of the Oak-Hickory-Pine Forest Vegetation Region of east Texas have been studied; 284 species, 63 additional varieties, 11 additional forms were identified in this ...
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(Texas A&M University. Libraries, 1994)BifA (previously named VF1) is a DNA-binding protein from the cyanobacterium Anabaena sp. strain PCC 7120. BifA was originally identified based on its binding activity to the upstream region of xisA, and the glnA, rbcL, ...
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(Texas A&M University. Libraries, 1968)
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(Texas A&M University. Libraries, 1974)The objectives of this research were: 1) to determine if leaf age significantly affects leaf resistance to gaseous diffusion in Phaseolus vulgaris at constant light and external CO₂ level, leaf temperature, ambient humidity ...
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(Texas A&M University. Libraries, 1976)The effects of breathing increased concentrations of oxygen (FI0₂ of 0.6 to 1.0) on the pulmonary compliance and pulmonary resistance were examined in normal, seated males. Exposures were for one hour and volume history ...
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(Texas A&M University. Libraries, 1979)Embryos of the estuarine teleost, Fundulus heteroclitus, were exposed to Hg^(++) as mercuric chloride (MC) and methylmercuric chloride (MMC) under seven different exposure conditions. Four-to-eight cell stage embryos (0-day ...
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(Texas A&M University. Libraries, 1979)Reduced rabbit liver microsomal cytochrome P-450 binds nitrite to yield an optical absorbance spectrum characterized by a decrease 1n absorbance around 415 nm and an increase in absorbance at 446 nm. A spectral dissociation ...
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(Texas A&M University. Libraries, 1973)Oysters rapidly accumulated saturated and aromatic hydrocarbons from oil-water dispersions. Aromatic hydrocarbons were accumulated to a greater extent than n-paraffins relative to their respective concentrations in the ...
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(Texas A&M University. Libraries, 1985)The microvascular response to topical application of leukotriene B4(LTB4) in the hamster cheek pouch was investigated using a combined intravital-electron microscopic approach. In an effort to gain insight into the cellular ...
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(Texas A&M University. Libraries, 1970)The objectives of the study were to determine the quantity of protein and the amino acid composition of the biomass that accumulates in an activated sludge treatment plant. As a means of comparison, three industrial waste ...