Sökning: "NAD P H dehydrogenases"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden NAD P H dehydrogenases.

1. 1. Gene description, activity quantification and physiological responses of mitochondrial alternative NAD(P)H dehydrogenases

   Författare :Fredrik Johansson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phytogeography; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; taxonomi; morfologi; kemotaxonomi. Växters fysiologi inte kärlväxter .; morphology; taxonomy; Systematic botany; plant mitochondria; NAD P H dehydrogenases; cold treatment; complex I; light dependence; antimycin a; alamethicin;

   Sammanfattning : In addition to proton-pumping complex I, the plant respiratory chain contains type II NAD(P)H dehydrogenases. These extra enzymes do not pump protons and consequently do not contribute to the electrochemical proton gradient. LÄS MER

3. 2. Alternative NAD(P)H dehydrogenases in plant mitochondria - localisation, catalytic functions and physiological roles

   Författare :Agnieszka Michalecka; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kärlväxters fysiologi; Physiology of vascular plants; NAD P H dehydrogenase; light-dependence; electron transport chain; alamethicin; alternative oxidase;

   Sammanfattning : In addition to complex I, the plant mitochondrial electron transport chain possesses several alternative NAD(P)H dehydrogenases, not present in animals. These enzymes allow nonenergy-conserving electron transfer from cytoplasmic and matrix NAD(P)H to ubiquinone. LÄS MER

4. 3. Plant type II NAD(P)H dehydrogenases : Structure, regulation and evolution of NDB proteins

   Författare :Mengshu Hao; Molekylär cellbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; Ca2 ; Electron transport; NDH-2; NDB; pH; NADH; NADPH; Plant mitochondria; Potato; Type II NAD P H dehydrogenase;

   Sammanfattning : In living organisms, respiration is a biological process degrading different carbon substrates, consuming O2, and releasing the carbon as CO2. Plants have several alternative enzymes that are involved in the respiratory processes, as compared to animals. LÄS MER

5. 4. Respiratory NAD(P)H dehydrogenases of plants - Gene identity and expression in response to light and cold

   Författare :Staffan Svensson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; morfologi; phytogeography; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; taxonomi; morphology; taxonomy; Systematic botany; Växtgenetik; Plant genetics; plant mitochondria; NADH dehydrogenases; light dependence; mRNA quantification; leaf respiration; cold treatment; kemotaxonomi. Växters fysiologi inte kärlväxter .;

   Sammanfattning : The respiratory chain of plants contains class 2 NAD(P)H dehydrogenases, not present in animals. The functional roles of these enzymes have been elusive for a long time. Two cDNAs, homologous to class 2 NADH dehydrogenase genes of yeast and E. coli, were isolated from potato leaves. LÄS MER

7. 5. Alternative pathways in the plant respiratory chain -transgenic analyses of type II NAD(P)H dehydrogenases

   Författare :Sabá Wallström; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : During oxidative phosphorylation, the production of ATP is driven by the activity of several proton-pumping respiratory protein complexes. In plants, non-proton pumping type II NAD(P)H dehydrogenases are also present in the respiratory chain to oxidize cytosolic and matrix NAD(P)H. LÄS MER