Global ETD Search
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 20 for “"Calvin cycle"”.
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Computer modelling applied to the Calvin Cycle
… systems, principally the photosynthetic Calvin cycle. A set of metabolic modelling software tools, "Scampi", constructed as part of this project is presented. A unique feature of Scampi is that it allows the user to make a particular model the subject of arbitrary algorithms. This …
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A bright, sweet evolution: a molecular genetic analysis of Calvin cycle gene expression response to light and sugar in the liverwort marchantia polymorpha, and insights into Calvin cycle promoter motif enrichment in land plants
… plants are frequently used as model organisms in Calvin Benson Bassham cycle (CBB) research given their ease of use in the laboratory. The expression of CBB genes in higher plants is well known to be regulated by light, sugar and plant development, yet no focus has been given to lower plant CBB …
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Investigating the Role of RAP2.12 and GAPDH in Photosynthetic CO2 Fixation to Improve Drought Tolerance
… of the genes that encode for enzymes of the Calvin cycle. These genes are the drought-inducible transcription factor RAP2.12, the Calvin cycle gene GAPA-2 and a putative transcription factor (At1g16750) (Bechtold et al., 2016). The first objective was to investigate this model prediction and …
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Genome Scale Metabolic Modelling of Arabidopsis thaliana and Chlamydomonas reinhardtii
… was used to study the knock-out phenotype of the Calvin Cycle enzymes. This correctly predicted the viability of single knockouts of 4 Calvin cycle enzymes. Alternate metabolic routes that make such change possible were identified using flux balance analysis. The analysis demonstrated a …
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Photosynthesis Inhibition in the Arabidopsis Thaliana Photorespiration Mutants
… from the impairment of carbon recycling to the Calvin cycle.
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Manipulating Guard Cell Anatomy and Physiology Using Biotechnological Approaches to Understanding Impact on Crop Performance
… electron transport chain (ETC) and Calvin cycle activities. Ferredoxin (Fd) protein plays an important role in regulating the production of ATP and photosynthetic reductants as well as activation of the Calvin cycle enzymes. Anatomical features such as stomata density, number and …
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The Accumulation Kinetics of The Small and Large Subunits of Ribulose 1,5-Bisphosphate Carboxylase During Chloroplast Development in Euglena Gracilis
The Calvin cycle enzyme ribulose 1,5-bisophosphate carboxylase (RuBPCase) is composed of two subunits, a large subunit which is encoded and synthesized in the chloroplast, and a small subunit which is encoded in the nucleus and synthesized in the cytoplasm. By determining the accumulation kinetics …
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Isolation, characterization and expression ofcDNA and genomic sequences encoding ribulosebisphosphate carboxylase/oxygenase activase from barley
… (RuBP) to initiate either the Calvin cycle or the photorespiratory pathway. Rubisco needs to be activated in order to catalyze these reactions. Rubisco activation involves the binding of an activator CO$\sb2$ to a lysine residue near but not at the active site of the enzyme, …
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Genome scale metabolic modelling of Phaeodactylum tricornutum
… metabolic responses, mainly associated with the Calvin cycle, reductant transfer, photorespiration, TCA cycle, glyoxylate cycle, lipid metabolism, carbohydrate metabolism and energy dissipation mechanisms under changing environmental and physiological conditions. Carbon xation and …
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Auxiliary metabolic genes in viruses infecting marine cyanobacteria
… dehydrogenase and an inhibitor of the Calvin cycle (CP12). These genes are also found in cyanophage genome fragments from the Global Ocean Sampling metagenome. Measuring their expression during infection in model phage{host pairs, we observed that phage-encoded PPP enzymes and CP12 were …
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Genetic Engineering of Plant Seeds to Increase Thiamin (Vitamin B1) Content
… in central metabolism such as citric acid cycle, pentose phosphate pathway, Calvin cycle, isoprenoid biosynthesis, and branched-chain amino acid biosynthesis. All living organisms need thiamine. However, human and animals can synthesize TPP from thiamine, but they are not able to synthesize …
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Functional genomics of a non-toxic Alexandrium lusitanicum culture
… growing subculture are all enzymes from the Calvin cycle, which may explain the limited growth of the non-toxic isolate. Other unknown, differentially expressed proteins may relate to the loss of toxicity, but their identity and function remain unresolved.
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A Theoretical Approach to Guiding Biotechnological Improvement of Crop Photosynthetic Efficiency
… oxidation pathway (PCOP) in addition to the Calvin cycle, starch synthesis, and triose phosphate export. Simulations using this model revealed that enzymes in PCOP are in excess for maintaining the flux to PCOP under normal atmospheric condition; this excess of enzyme activities may be an …
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The effect of 2,4-D, atrazine, and diuron on algal physiology and population dynamics
… increase in the rates of reactions in both the Calvin cycle and photorespiration.
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Physiological and Molecular Responses of Eurythermal and Stenothermal Populations of <i>Zostera Marina</i> L (Eelgrass) to Climate Change
… enrichment increased the abundance of Calvin Cycle and nitrogen assimilation metabolites while suppressing the abundance of stress-related metabolites. However, target genes involved in carbohydrate fixation, photosynthesis and proteins that function as molecular chaperones did not …
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Molecular analysis of genes involved in carbohydrate metabolism in the desiccation-tolerant cyanobacterium Nostoc commune UTEX 584
… playing a role in glycolysis as well in the Calvin cycle of carbon dioxide fixation. The potential roles played by aldolase and the products of ORFs 1 through 5 in overall carbon metabolism of <i>Nostoc commune</i> UTEX 584 are discussed.
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Assessing the photosynthetic impact of inorganic carbon in symbiotic dinoflagellates in culture and in coral host complexes
… the light reactions and those that occur in the Calvin cycle. Results presented here have identified species- and cladal-specific heterogeneity in thermal inhibition of the dark reactions in the whole corals Stylophora pistillata and Pocillopora damicornis, and amongst Symbiodinium clades A, Band …
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Engineering cyanobacterial genes into Glycine max (soybean) leads to increased photosynthesis and productivity
… key steps in the reductive pentose-phosphate (Calvin) cycle, the primary pathway for carbon fixation in higher plants. G. max plants expressing the FBP1 gene only showed increased photosynthesis and productivity when grown in the open-air field trails. The FBP1 line, G. max expressing the FBP1 …
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Towards structure and dynamics of metabolic networks
… strongly depends on the number of directed cycles within the metabolic network. This might guide the development of efficient approximation algorithms. Assuming mass-action kinetics, chemical reaction network theory (CRNT) allows for eliciting conclusions about multistability directly from …
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Redox-regulation of starch and lipid synthesis in leaves
… well-known mechanism to regulate enzymes of the Calvin cycle, oxidative pentose phosphate cycle, NADPH export and ATP synthesis in response to light. The aim of the present thesis was to investigate whether a similar mechanism is also regulating carbon storage in leaves. Previous studies have …