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Phenotypic Plasticity of the Hydrasperman Seed Fern Tetrastichia bupatides Gordon (Lyginopteridaceae)

Creator:: Dunn, Michael T. and Rothwell, Gar W.
Abstract:: Fifty-nine stems of Tetrastichia bupatides, numerous frond segments, and roots from Oxroad Bay, Scotland, have recently been analyzed. They reveal that many characters originally used to describe this species exhibit a wider range of variation than previously suspected. These data suggest that ribs of the protostele are most commonly four...
Resource Type:: Article
Full Text:: FERN TETRASTICHIA BUPATIDES GORDON (LYGINOPTERIDACEAE) Michael T. Dunn1,* and Gar W. Rothwelly

Carbonyl Sulfide Inhibition of CO Dehydrogenase from Rhodospirillum rubrum

Creator:: Hyman, Michael R., Ensign, Scott A., Arp, Daniel J., and Ludden, Paul W.
Abstract:: Carbonyl sulfide (COS) has been investigated as a rapid-equilibrium inhibitor of CO oxidation by the CO dehydrogenase purified from Rhodospirillum rubrum. The kinetic evidence suggests that the inhibition by COS is largely competitive versus CO (Ki = 2.3 pM) and uncompetitive versus methylviologen as electron acceptor (Ki = 15.8 pM)....
Resource Type:: Article
Full Text:: ) Biochem. SOC. Trans. 12, 220-223. Hainfeld, J. F., Wall, J. S. , & Desmond, E. J . (1982) Ul

Fluorescence and nonphotochemical quenching responses to simulated vertical mixing in the marine diatom Thalassiosira weissflogii

Creator:: Milligan, Allen J., Aparicio, Uriel A., and Behrenfeld, Michael J.
Abstract:: The fluorescence signal emitted from phytoplankton exposed to natural sunlight has been considered a potentially useful tool to examine phytoplankton physiology from in situ radiometers and satellites, but variability in the fluorescence signal is confounded by non-photochemical quenching (NPQ). This pathway dissipates excitation energy as heat rather than fluorescence. It...
Resource Type:: Article
Full Text:: Allen J. Milligan*, Uriel A. Aparicio, Michael J. Behrenfeld Department of Botany and Plant Pathology

Global net community production and the putative net heterotrophy of the oligotrophic oceans

Creator:: Westberry, Toby K., Williams, Peter J. le B., and Behrenfeld, Michael J.
Abstract:: Reconciling rates of organic carbon export from the euphotic zone with the consumption of organic material in the dark ocean remains one of the major quantitative uncertainties of the ocean carbon cycle. Euphotic zone net community production (NCP) provides one broad constraint on export flux and potential carbon drawdown. However,...
Resource Type:: Article
Full Text:: Michael J. Behrenfeld1 Received 17 April 2011; revised 1 October 2012; accepted 17 October 2012

Acetylene Inhibition of Azotobacter vinelandii Hydrogenase: Acetylene Binds Tightly to the Large Subunit

Creator:: Sun, Jin-Hua, Hyman, Michael R., and Arp, Daniel J.
Abstract:: Acetylene is a slow-binding inhibitor of the Ni- and Fe-containing dimeric hydrogenase isolated from Azotobacter vinelandii. Acetylene was released from hydrogenase during the recovery from inhibition. This indicates that no transformation of acetylene to another compound occurred as a result of the interaction with hydrogenase. However, the release of C2H2...
Resource Type:: Article
Full Text:: , R. M., Gaul, D. F., Shaw, R. W., & Knaff, D. B. (1985) Arch. Biochem. Biophys. 238, 373-377. Yang

Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom

Creator:: Behrenfeld, Michael J., Doney, Scott C., Lima, Ivan, Boss, Emmanuel S., and Siegel, David A.
Abstract:: Satellite measurements allow global assessments of phytoplankton concentrations and, from observed temporal changes in biomass, direct access to net biomass accumulation rates (r). For the subarctic Atlantic basin, analysis of annual cycles in r reveals that initiation of the annual blooming phase does not occur in spring after stratification surpasses...
Resource Type:: Article
Full Text:: recovery underlying the subarctic Atlantic spring plankton bloom Michael J. Behrenfeld,1 Scott C. Doney,2

Kinetic and Spectroscopic Analysis of the Inactivating Effects of Nitric Oxide on the Individual Components of Azotobacter vinelandii Nitrogenase

Creator:: Hyman, Michael R., Seefeldt, Lance C., Morgan, Vance, Arp, Daniel J., and Mortenson, Leonard E.
Abstract:: The effects of nitric oxide (NO) on the individual components of Azotobacter vinelandii nitrogenase have been examined by kinetic and spectroscopic methods. Incubation of the Fe protein (Av2) for 1 h with stoichiometries of 4- and 8-fold molar excesses of NO to Av2 dimer resulted in a complete loss of...
Resource Type:: Article
Full Text:: vinelandii Nitrogenasef Michael R. Hyman,* Lance C. Seefeldt,$ T. Vance Morgan,$ Daniel J. Arp,* and

Space-based lidar measurements of global ocean carbon stocks

Creator:: Behrenfeld, Michael J., Hu, Yongxiang, Hostetler, Chris A., Dall’Olmo, Giorgio, Rodier, Sharon D., Hair, John W., and Trepte, Charles R.
Abstract:: Global ocean phytoplankton biomass (C-phyto) and total particulate organic carbon (POC) stocks have largely been characterized from space using passive ocean color measurements. A space-based light detection and ranging (lidar) system can provide valuable complementary observations for C-phyto and POC assessments, with benefits including day-night sampling, observations through absorbing aerosols...
Resource Type:: Article
Full Text:: ocean carbon stocks Michael J. Behrenfeld,1 Yongxiang Hu,2 Chris A. Hostetler,2 Giorgio Dall’Olmo,3

Regional to global assessments of phytoplankton dynamics from the SeaWiFS mission

Creator:: Siegel, D. A., Behrenfeld, Michael J., Maritorena, S., McClain, C. R., Antoine, D., Bailey, S. W., Bontempi, P. S., Boss, E. S., Dierssen, H. M., Doney, S. C., Eplee, R. E. Jr., Evans, R. H., Feldman, G. C., Fields, E., Franz, B. A., Kuring, N. A., Mengelt, C., Nelson, N. B., Patt, F. S., Robinson, W. D., Sarmiento, J. L., Swan, C. M., Werdell, P. J., Westberry, T. K., Wilding, J. G., and Yoder, J. A.
Abstract:: Photosynthetic production of organic matter by microscopic oceanic phytoplankton fuels ocean ecosystems and contributes roughly half of the Earth's net primary production. For 13 years, the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) mission provided the first consistent, synoptic observations of global ocean ecosystems. Changes in the surface chlorophyll concentration, the primary...
Resource Type:: Article
Full Text:: , S. Maritorena a, C.R. McClain c, D. Antoine d, S.W. Bailey c, P.S. Bontempi e, E.S. Boss f, H.M

Finding Our Way through Phenotypes

Creator:: Deans, Andrew R., Lewis, Suzanna E., Huala, Eva, Anzaldo, Salvatore S., Ashburner, Michael, Balhoff, James P., Blackburn, David C., Blake, Judith A., Burleigh, J. Gordon, Chanet, Bruno, Cooper, Lauren D., Courtot, Mélanie, Csösz, Sándor, Cul, Hong, Dahdul, Wasila, Das, Sandip, Dececchi, T. Alexander, Dettal, Agnes, Diogo, Rui, Druzinsky, Robert E., Dumontier, Michel, Franz, Nico M., Friedrich, Frank, Gkoutos, George V., Haendel, Melissa, Harmon, Luke J., Hayamizu, Terry F., He, Yongqun, Hines, Heather M., Ibrahim, Nizar, Jackson, Laura M., Jaiswal, Pankaj, James-Zorn, Christina, Köhler, Sebastian, Lecointre, Guillaume, Lapp, Hilmar, Lawrence, Carolyn J., Le Novère, Nicolas, Lundberg, John G., Macklin, James, Mast, Austin R., Midford, Peter E., Mikó, István, Mungall, Christopher J., Oellrich, Anika, Osumi-Sutherland, David, Parkinson, Helen, Ramírez, Martín J., Richter, Stefan, Robinson, Peter N., Ruttenberg, Alan, Schulz, Katja S., Segerdell, Erik, Seltmann, Katja C., Sharkey, Michael J., Smith, Aaron D., Smith, Barry, Specht, Chelsea D., Squires, R. Burke, Thacker, Robert W., Thessen, Anne, Fernandez-Triana, Jose, Vihinen, Mauno, Vize, Peter D., Vogt, Lars, Wall, Christine E., Walls, Ramona L., Westerfeld, Monte, Wharton, Robert A., Wirkner, Christian S., Woolley, James B., Yoder, Matthew J., Zorn, Aaron M., and Mabee, Paula
Abstract:: Despite a large and multifaceted effort to understand the vast landscape of phenotypic data, their current form inhibits productive data analysis. The lack of a community-wide, consensus-based, human- and machine-interpretable language for describing phenotypes and their genomic and environmental contexts is perhaps the most pressing scientific bottleneck to integration across...
Resource Type:: Article
Full Text:: . Lewis2, Eva Huala3,4, Salvatore S. Anzaldo5, Michael Ashburner6, James P. Balhoff7, David C. Blackburn8

ScholarsArchive@OSU

Phenotypic Plasticity of the Hydrasperman Seed Fern Tetrastichia bupatides Gordon (Lyginopteridaceae)

Carbonyl Sulfide Inhibition of CO Dehydrogenase from Rhodospirillum rubrum

Fluorescence and nonphotochemical quenching responses to simulated vertical mixing in the marine diatom Thalassiosira weissflogii

Global net community production and the putative net heterotrophy of the oligotrophic oceans

Acetylene Inhibition of Azotobacter vinelandii Hydrogenase: Acetylene Binds Tightly to the Large Subunit

Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom

Kinetic and Spectroscopic Analysis of the Inactivating Effects of Nitric Oxide on the Individual Components of Azotobacter vinelandii Nitrogenase

Space-based lidar measurements of global ocean carbon stocks

Regional to global assessments of phytoplankton dynamics from the SeaWiFS mission

Finding Our Way through Phenotypes

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