David A. Dalton
Reed College
28 Papers
401 Citations
David A. Dalton is an academic researcher from Reed College. The author has contributed to research in topics: Ascorbic acid & Peroxidase. The author has an hindex of 20, co-authored 28 publications.
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Papers
Stress-Induced Legume Root Nodule Senescence. Physiological, Biochemical, and Structural Alterations
Manuel A. Matamoros,Lisa M. Baird,P. R. Escuredo,David A. Dalton,Frank R. Minchin,Inaki Iturbe-Ormaetxe,Maria C. Rubio,Jose F. Moran,A. J. Gordon,Manuel Becana +9 more
TL;DR: Nitrate-fed and dark-stressed bean and pea plants were used to study nodule senescence and thiol tripeptides of untreated nodules, indicating sugar deprivation as the primary cause of activity loss.
Subcellular localization of oxygen defense enzymes in soybean (Glycine max [L.] Merr.) root nodules
David A. Dalton,L. M. Baird,Lorene K. Langeberg,C. Y. Taugher,W. R. Anyan,C. P. Vance,Gautam Sarath +6 more
TL;DR: Results of immunogold and immunofluorescence studies indicated that monodehydroascorbate reductase was located primarily in the cell wall, suggesting that ascorbate regeneration in the cytoplasm may proceed primarily through the action of dehydroASCorbateredctase.
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Antioxidant Defenses in the Peripheral Cell Layers of Legume Root Nodules
TL;DR: The presence of high levels of antioxidants suggests that respiratory consumption of O2 in the endodermis or nodule parenchyma may be an essential component of the O2-diffusion barrier that regulates the entry of O1 into the central region of nodules and ensures optimal functioning of nitrogenase.
103
Endophytic nitrogen fixation in dune grasses (Ammophila arenaria and Elymus mollis) from Oregon
TL;DR: It is concluded that sand dune grasses from temperate climates contain endophytic, diazotrophic bacteria that may contribute to the phenomenal success of these grasses on nutrient-poor sand.
102
Correlations between the ascorbate-glutathione pathway and effectiveness in legume root nodules
TL;DR: The increased capacity for peroxide scavenging in effective nodules as compared to ineffective nodules emphasizes the important protective role that this pathway may play in processes related to nitrogen fixation.
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