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| Creator | Title | Description | Subject | Date | ||
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Capecchi, Mario R. | Production of selenoprotein P (Sepp1) by hepatocytes is central to selenium homeostasis | Background: Sepp1 transports selenium, but its complete role in selenium homeostasis is not known. Results: Deletion of Sepp1 in hepatocytes increases liver selenium at the expense of other tissues and decreases whole-bodyselenium by increasing excretion. Conclusion: Sepp1 production by hepatocytes ... | 2012-01-01 | |
| 2 |
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Coley, Phyllis D.; Lokvam, John; Kursar, Thomas A. | Allelochemic function for a primary metabolite: the case of L-tyrosine hyper-production in Inga umbellifera (Fabaceae) | Young leaves of tropical forest trees experience far higher herbivory pressure than mature leaves of the same species. Selection on young leaves has led to diverse forms of defense chemical expression. Though most allelochemicals are secondary metabolites, allelochemic function for a primary metabol... | 5-amino-4-hydroxy-pentanoic acid; Panama; Barro Colorado Island; Fabaceae; Inga umbellifera; Primary metabolite; Heliothis virescens | 2006 |
| 3 |
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Capecchi, Mario R. | Hoxb13 mutations cause overgrowth of caudal spinal cord and tail vertebrae | To address the expression and function of Hoxb13, the 5' most Hox gene in the HoxB cluster, we have generated mice with loss-of-function and beta-galactosidase reporter insertion alleles of this gene. Mice homozygous for Hoxb13 loss-of-function mutations show overgrowth in all major structures deriv... | Animals; Axons; Ganglia, Spinal; Mice; Spinal Cord | 2003-04-15 |
| 4 |
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Capecchi, Mario R. | Sepp1UF forms are N-terminal selenoprotein P truncations that have peroxidase activity when coupled with thioredoxin reductase-1 | Mouse selenoprotein P (Sepp1) consists of an N-terminal domain (residues 1-239) that contains 1 selenocysteine (U) as residue 40 in a proposed redox-active motif (-UYLC-) and a Cterminal domain (residues 240-361) that contains 9 selenocysteines. Sepp1 transports selenium from the liver to other tiss... | 2014-01-01 | |
| 5 |
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Ehleringer, James R.; Bush, Sarah Elizabeth | Ecophysiology of riparian cottonwood and willow before, during, and after two years of soil water removal | Riparian cottonwood/willow forest assemblages are highly valued in the southwestern United States for their wildlife habitat, biodiversity, and watershed protection. Yet these forests are under considerable threat from climate change impacts on water resources and land-use activities to support hum... | Riparian cottonwood; Riparian willow; Soil water removal; Coyote willow; Drought recovery; Populus fremontii; Riparian ecology; Red Butte Canyon Research Natural Area; Salix exigua; Stem sap flux; Leaf carbon isotope ratios | 2010 |
| 6 |
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Ehleringer, James R. | Patterns of local and nonlocal water resource use across the western U.S. determined via stable isotope intercomparisons | In the western U.S., the mismatch between public water demands and natural water availability necessitates large interbasin transfers of water as well as groundwater mining of fossil aquifers. Here we identify probable situations of nonlocal water use in both space and time based on isotopic compari... | 2014-01-01 | |
| 7 |
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Sperry, John S. | Vulnerability to xylem cavitation and the distribution of sonoran desert vegetation | We studied 15 riparian and upland Sonoran desert species to evaluate how the limitation of xylem pressure (Vx) by cavitation corresponded with plant distribution along a moisture gradient. Riparian species were obligate riparian trees (Fraxinus velutina, Populus fremontii, and Salix gooddingii), nat... | Comparative approach; species distribution; xylem conducting efficency | 2000 |
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Hultine, Kevin | Comparison of methods to estimate Ephemeral Channel Recharge, Walnut Gulch, San Pedro River Basin, Arizona | Ephemeral channel transmission loss represents an important groundwater surface water exchange in arid and semiarid regions and is potentially a significant source of recharge at the basin scale. Copyright [year] American Geophysical Union. Reproduced by permission of American Geophysical Union. ... | Transport; Transmission; Balance | 2004 |
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