S
Stephen M. G. Duff
Researcher at University of Nebraska–Lincoln
Publications - 19
Citations - 2158
Stephen M. G. Duff is an academic researcher from University of Nebraska–Lincoln. The author has contributed to research in topics: Phosphoenolpyruvate carboxylase & Acid phosphatase. The author has an hindex of 17, co-authored 18 publications receiving 2107 citations. Previous affiliations of Stephen M. G. Duff include Queen's University.
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Journal ArticleDOI
The role of acid phosphatases in plant phosphorus metabolism
TL;DR: The characteristics and putative roles of piant acid phosphatase lAPasel are summarized and recommendations are made to achieve uniformity in the analyses of the different .A.Pase isoforms normally encountered within and between different plant tissues.
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Phosphate Starvation Inducible ;Bypasses' of Adenylate and Phosphate Dependent Glycolytic Enzymes in Brassica nigra Suspension Cells.
TL;DR: It is hypothesized that pyrophosphate:fructose 6-ph phosphate 1-phosphotransferase, nonphosphorylating NADP-glyceraldehyde 3- phosphate dehydrogenase, and phosphoenolpyruvate phosphatase bypass nucleotide phosphate or Pi-dependent glycolytic reactions during sustained periods of Pi depletion.
Journal ArticleDOI
Altering hemoglobin levels changes energy status in maize cells under hypoxia
TL;DR: It is suggested that nonsymbiotic hemoglobins act in plants to maintain the energy status of cells in low oxygen environments and that they accomplish this effect by promoting glycolytic flux through NADH oxidation, resulting in increased substrate-level phosphorylation.
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Response to Phosphate Deprivation in Brassica nigra Suspension Cells : Enhancement of Intracellular, Cell Surface, and Secreted Phosphatase Activities Compared to Increases in Pi-Absorption Rate
Daniel D. Lefebvre,Stephen M. G. Duff,Cheryl A. Fife,Colin Julien-Inalsingh,William C. Plaxton +4 more
TL;DR: It appears that Pi absorption and the production or activation of phosphatases are regulated in a distinct manner and Pi uptake into Brassica nigra cells does not appear to directly involve the cell surface phosphatase under Pi-deficient conditions.
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Phosphate-starvation response in plant cells: de novo synthesis and degradation of acid phosphatases.
TL;DR: Increases in the amounts of both major APase isozymes occurred simultaneously following Pi deprivation of B. nigra suspension cells, suggesting the involvement of a common regulatory mechanism.