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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 41 for “"Photorespiration."”.
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Photosynthesis and Photorespiration in Isolated Soybean Leaf Cells
Made available in DSpace on 2015-05-14T15:09:57Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7616192.PDF: 6320900 bytes, checksum: 92c4e943876e86334813eaba476a39be (MD5) Previous issue date: 1976
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Photosynthesis Inhibition in the Arabidopsis Thaliana Photorespiration Mutants
… of photosynthesis occurring in the Arabidopsis photorespiration mutants during illumination under atmospheres which promote photorespiration is predominantly due to declining leaf RuBP concentrations resulting from the impairment of carbon recycling to the Calvin cycle.
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Photorespiration in Arabidopsis thaliana : natürliche Evolution und gentechnologische Modifikation
… photorespiratory pathway. The first step of photorespiration is the oxidation of glycolate to glyoxylate. Land plants and charophycean green algae oxidize glycolate inside the peroxisome. This reaction is catalyzed by a glycolate oxidase that uses oxygen as a cofactor. Chlorophycean Green …
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A novel approach for the suppression of photorespiration in C 3 plants by gene transfer
… in the vicinity of Rubisco thereby suppressing photorespiration in C3 plants. The pathway is derived from E. coli and converts the glycolate formed during photorespiration into glycerate. Three enzymatic activities are required: Glycolate dehydrogenase (GDH), Glyoxylate carboligase (GCL), and …
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Construction and molecular analysis of genetically modified C 3 plants expressing a glycolate oxidizing pathway inside the chloroplast
… in the vicinity of Rubisco thereby suppressing photorespiration in C3 plants. The pathway is derived from E. coli and converts the glycolate formed during photorespiration into glycerate. Three enzymatic activities are required: glycolate dehydrogenase (GDH), glyoxylate carboligase (GCL), and …
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Molecular and biochemical analyses of transgenic nicotiana tabacum plants metabolizing glycolate in the chloroplasts
… the chloroplasts and thereby at suppressing photorespiration in C3 plants. The pathway is derived from E. coli and converts the glycolate formed during photorespiration into glycerate. Three enzymatic activities are required: glycolate dehydrogenase (GDH), glyoxylate carboligase (GCL), and …
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Developmental and Expression Evolution in C3 and C4 Atriplex and their Hybrids
… photosynthesis and yield are reduced 30-50% by photorespiration. The C4 photosynthetic pathway incorporates biochemical and structural features to minimize photorespiration by concentrating CO2 around Rubisco. Engineering C4 into C3 crops requires an understanding of the molecular and genetic …
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Änderung der Glycindecarboxylase- und Serinhydroxymethyltransferase-Aktivität in Blättern:
In C3/C4-intermediären Pflanzenarten wird die Photorespiration durch Kompartimentierung der photorespiratorischen CO2-Freisetzung aus Glycin in den Bündelscheidenzellen vermindert. Dieser CO2-Konzentrierungsmechanismus beruht auf der ausschließlichen Kompartimentierung der Glycindecarboxylase …
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Morphological and Physiological Studies of the Carbon Concentrating Mechanism in Chlamydomonas reinhardtii
… RuBisCO oxygenase activity and associated photorespiration. The enhanced efficiency of CO2 assimilation in the pyrenoid via CCM had been modelled theoretically as a requirement for successful CCM in higher plant systems. The ultimate aim of my research is to understand the biogenesis of the …
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The eco-physiology of New Zealand forest lichens with special reference to carbon dioxide exchange
… was considered to result from the repression of photorespiration. The oxygen effect was separated into two components; (a) the sensitivity of the carboxylation system and (b), the rate of CO₂ evolution in the light at zero CO₂. Of the lichen species studied all but P. billardierii had a …
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Light utilization and excretion of organic matter by antarctic lake phytoplankton
… that the reduction of photosynthesis due to photorespiration might be limiting the development of the phytoplankton communities of these lakes.
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Synthetic Biology for Autotrophic and Heterotrophic Production of Ethanol
… and O<sub>2</sub> which can lead to photorespiration and ultimately the loss of fixed carbon and nitrogen. The 3-hydroxypropionate (3-HPA) bypass was introduced into ethanol-producing Anabaena strain in an attempt to increase CO<sub>2</sub>-fixation and then increase ethanol …
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Identifizierung und Analyse von Maismutanten mit Defekten im C 4-Zyklus
… CO2 near the enzyme RuBisCo. Therefore the photorespiration, as we can find in C3-plants, is suppressed. Although numerous investigations deal with the regulation of the C4-photosynthesis, a lot of factors which take part in it are unknown. To make a contribution to the identification of …
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Einfluss der Wandtemperatur auf die Stoß-Grenzschicht-Wechselwirkung an einer Rampe im Hyperschall
… CO2 near the enzyme RuBisCo. Therefore the photorespiration, as we can find in C3-plants, is suppressed. Although numerous investigations deal with the regulation of the C4-photosynthesis, a lot of factors which take part in it are unknown. To make a contribution to the identification of …
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Genome scale metabolic modelling of Phaeodactylum tricornutum
… 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 triose-phosphate production can take place solely …
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Proteome studies on leaf peroxisomes from Spinacia oleracea L. and Arabidopsis thaliana (L.) Heynh.
… Peroxisomen hinaus, beispielsweise die in Photorespiration, Fettsäure-beta-Oxidation und den Metabolism reaktiver Sauerstoffspezies involvierten Enzyme, wurde einige neue Proteine identifiziert, und zwar eine kurzkettige Alkoholdehydrogenase, ein Naphthoat-Synthase-ähnliches Protein, eine …
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Pre-industrial to 2000 ppm; soybean response to increasing CO2
… with increases in [CO2] due to the decrease in photorespiration; however, above a certain threshold, the benefits of continued increases in [CO2] will diminish. The data show that physiological development was delayed as [CO2] increased. Plant height and total leaf area increased with higher …
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The role of small RNAs in C4 photosynthesis
… that are targeted to overcome the effects of photorespiration caused by the oxygenase capability of Ribulose Bisphosphate Carboxylase/Oxygenase (RuBisCO). The cycle has evolved independently in over 60 lineages, which suggests that recruitment of genes into the C4 cycle is a relatively easy …
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Die epigenetische Regulation des C 4 -Syndroms : belichtungsabhängige Chromatinveränderungen am Promotor der Phosphoenolpyruvat Carboxylase aus Mais (Zea mays L.)
… mechanism to suppress the undesirable effects of photorespiration by separating primary and secondary CO2 fixation in two different leaf tissues. The primary fixation step takes place in the mesophyll cytoplasm and is controlled by phosphoenolpyruvate carboxylase (PEPC). The enzyme catalyses the …
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Studies to influence the carbon metabolism of the C 3 plant Nicotiana tabacum by expressing heterologous enzymes involved in C 4 -like CO 2 fixation
… point ((), and a short-term inhibition of photorespiration were observed in the multiple PC/ME/PS and PC/ME/DK/PS/CK/PT overexpressors, respectively. Higher growth rates and earlier formation of reproductive organs were found for single PC, double PC/ME and multiple PC/ME/PS/PT, …
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