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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 135 for “"Enzyme activities"”.
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Hydrolytic enzyme activities in leaf senescense
<p>Acid phosphatase activity has been interpreted as being associated with senescence in several plant systems. Consistent with this interpretation, this study demonstrates that in excised apical portions of wheat leaves kept in the light acid phosphatase activity slowly increases with time. …
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Enzyme activities associated with gonadotropic hormones
… gonadotropic hormones and certain types of enzymes has been suggested in previous studies and an investigation into the possibility of enzymatic activity associated with the gonadotropic hormones has been the primary focus of the research presented in this thesis. Partial sequence homology …
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Effect of ethanol on hepatic metabolism and enzyme activities
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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The effect of dark chilling on circadian-regulated enzyme activities in tomato
Overnight low temperature treatment inhibits next day photosynthesis in chilling-sensitive plant species such as tomato and cucumber. In tomato, net photosynthesis is reduced 60% by an overnight chill at 4$\sp\circ$C. The mechanism for the inhibition of photosynthesis is unknown. However, one …
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The Effects of Ecological Restoration on Soil Microbial Enzyme Activities and Leaf Litter Decomposition
… effects of ecological restoration on soil enzyme activities and decomposition. The activities of five enzymes: phosphatase, ?-glucosidase, ?-N-acetylglucosadminidase (NAGase), phenol oxidase, and lignin-peroxidase were measured in both soils and on decomposing Quercus falcata leaf litter in …
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Storage protein degradation and proteolytic enzyme activities during germination of water stressed impatiens seeds
… in specific activity indicated synthesis of this enzyme during germination. Water stress of -0.1, -0.2, -0.4, and -0.6 MPa, induced by polyethylene glycol 8000, reduced germination by 13, 49, 91, and 100%, respectively at 96 hr. Under these conditions increases in fresh weight were inhibited by …
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Proteolytic Enzyme Activities in Corn (Zea Mays L.) Leaves During Water Deficit and Senescence
Made available in DSpace on 2015-05-14T15:10:00Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7821052.PDF: 2358161 bytes, checksum: 6ee849b59ce2d5a2573a465d6b27d065 (MD5) Previous issue date: 1978
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Ontogenic Morphology and Enzyme Activities of the Intestinal Tract of the Nile Tilapia, Oreochromis Niloticus
… localization and distribution of intestinal enzymes were observed in the fish at hatch and at mature stages using enzyme histochemistry. At hatch (day 0), most gut enzymes were already present in the intestinal brush border. As the fish matured, activities of the enzymes were widely …
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Redox-sensitive enzyme activities involved in methyl group transfer and coenzyme F420 conversion in Methanobacterium thermoautotrophicum
Contains fulltext : mmubn000001_111343151.pdf (Publisher’s version ) (Open Access)
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Potential enzyme activities in soils as affected by perennial cropping and nitrogen rates in central Iowa
… overall soil health improvement. Extracellular enzymes (EEs), produced mainly by soil microorganisms but also by plant roots, largely mediate soil organic matter (SOM) decomposition. These EEs in soil are known to play a substantial role in maintaining soil health by catalyzing nearly all …
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Influence of vegetation on sediment bacterial community structure, microbial enzyme activities and phosphorus retention in constructed freshwater wetlands
<p>Agricultural activities are major sources of non-point pollutants causing eutrophication. Constructed wetlands are used as a best management practice for sequestration of nutrients from agricultural runoff. This dissertation focuses on the influence of vegetation on bacterial community …
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Temperature Acclimation of Enzyme Activities and Protein Synthesis in Channel Catfish (Ictalurus Punctatus). In Vivo and In Vitro Studies
… from liver structural proteins. Specific activities of enzymes of cultured hepatocytes showed acclimatory compensation for the following: cytochrome(DEGREES)C oxidase, citrate synthase, NADH-cytochrome(DEGREES)C reductase, and glucose-6-phosphate dehydrogenase. Lactate dehydrogenase showed …
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The use of selected enzyme activities as indices of growth and nitrogen metabolism in fingerling channel catfish (Ictalurus punctatus)
… daily gain of the fish (IDG) and the activities of selected enzymes - glutamate dehydrogenase (GDH), aspartate aminotransferase (GOT), alanine aminotransferase (GPT) and alkaline phosphatase (AP). Fish were fed purified diets differing in protein quantity and protein quality in …
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The Influence of Age and Sampling Depth on Muscle Fiber Type Percentages and Enzyme Activities of Equine Middle Gluteal Muscle
The effects of age and sampling depth on histochemical and biochemical properties of equine gluteus medius were examined.
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Changes in midgut gland morphology and digestive enzyme activities associated with development in early stages of the American lobster Homarus americanus
… a biochemical study correlates changes in the activities of digestive protease, lipase, and amylase with the observed changes in the cells of the midgut gland. A sensitive method for detection of crustacean lipase was developed for this study. In order to optimize the assay conditions for …
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Isolation of a Pseudomonas aeruginosa Aspartate Transcarbamoylase Mutant and the Investigation of Its Growth Characteristics, Pyrimidine Biosynthetic Enzyme Activities, and Virulence Factor Production
The pyrimidine biosynthetic pathway is an essential pathway for most organisms. Previous research on the pyrimidine pathway in Pseudomonas aeruginosa (PAO1) has shown that a block in the third step of the pathway resulted in both a requirement for exogenous pyrimidines and decreased ability to …
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INVOLVEMENT OF LYSOSOMES IN SPONTANEOUS ATHEROGENESIS AND THE EFFECTS OF ESTROGENS
… fragility and marker enzyme activities, N-acetyl-B-hexosaminidase (NAHase) and acid phosphatase (APase), were measured in subcellular fractions from upper thoracic aortas (lesion-resistant areas) and celiac bifurcations (site predisposed to lesions) from …
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Assessing the Effects of Temperature, Feeding Status, and the Microbiome on the Maximal Activities of Several Enzymes Important to Energy Production and Ammonia Detoxification in the Intestines of Teleost Fish
… status, and the microbiome on the maximal activities of several enzymes important to energy production and ammonia (NH3) detoxification in the intestines of three species of teleosts: the goldfish, rainbow darter and central stoneroller. In warm-acclimated goldfish, intestinal and branchial …
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