Research Topics
| Maria Lucia GhirardiSummaryAffiliation: National Renewable Energy Laboratory Country: USA Publications
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Detail Information
Publications
A comparison of hydrogen photoproduction by sulfur-deprived Chlamydomonas reinhardtii under different growth conditionsSergey Kosourov
Institute of Basic Biological Problems RAS, Pushchino, Moscow Region 142290, Russia
J Biotechnol 128:776-87. 2007..These results suggest ways of engineering algae to improve H(2) production, which in turn may have a positive impact on the economics of applied systems for H(2) production...
Photobiological hydrogen-producing systemsMaria Lucia Ghirardi
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA
Chem Soc Rev 38:52-61. 2009....
Hydrogenases and hydrogen photoproduction in oxygenic photosynthetic organismsMaria L Ghirardi
National Renewable Energy Laboratory, Golden, CO 80401, USA
Annu Rev Plant Biol 58:71-91. 2007..Some of this effort is clearly driven by the potential for using these enzymes in future biological or biohybrid systems to produce renewable fuel or in fuel cell applications...
Approaches to developing biological H(2)-photoproducing organisms and processesM L Ghirardi
National Renewable Energy Laboratory, Golden, CO, USA
Biochem Soc Trans 33:70-2. 2005....
Hydrogen production by photosynthetic green algaeMaria L Ghirardi
National Renewable Energy Laboratory, Golden, CO 80401, USA
Indian J Biochem Biophys 43:201-10. 2006..In this review, current biochemical understanding of this reaction in green algae, and some of the major challenges facing the development of future commercial algal photobiological systems for H2 production have been discussed...
Identification of genes required for hydrogenase activity in Chlamydomonas reinhardtiiM C Posewitz
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA
Biochem Soc Trans 33:102-4. 2005..reinhardtii hydrogenase genes, HydA1 and HydA2, indicating a normal transcriptional response to anaerobiosis. In contrast, the transcription of both hydrogenase genes in sta7-10 is significantly attenuated...
Photoproduction of hydrogen by sulfur-deprived C. reinhardtii mutants with impaired photosystem II photochemical activityValeria V Makarova
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA
Photosynth Res 94:79-89. 2007..The more compromised the PSII photochemical activity, the more dramatic was the effect of sulfur deprivation on the H2-production process, which depends both on the presence of residual PSII activity and the amount of stored starch...
Atomic resolution modeling of the ferredoxin:[FeFe] hydrogenase complex from Chlamydomonas reinhardtiiChristopher H Chang
National Renewable Energy Laboratory, Golden, Colorado, USA
Biophys J 93:3034-45. 2007....
Hydrogen fuel production by transgenic microalgaeAnastasios Melis
University of California, Department of Plant and Microbial Biology, 111 Koshland Hall, Berkeley, California 94720 3102, USA
Adv Exp Med Biol 616:110-21. 2007....
Prolongation of H2 photoproduction by immobilized, sulfur-limited Chlamydomonas reinhardtii culturesTatyana V Laurinavichene
Institute of Basic Biological Problems RAS, Pushchino, Moscow Region 142290, Russia
J Biotechnol 134:275-7. 2008..Furthermore, it is also possible to prolong the duration of H2 production by cycling immobilized cells between minus and plus sulfate conditions...
Application of gene-shuffling for the rapid generation of novel [FeFe]-hydrogenase librariesLauren E Nagy
Environmental Science and Engineering Division, Colorado School of Mines, Golden, CO 80401, USA
Biotechnol Lett 29:421-30. 2007..Moreover, we demonstrate that a single set of [FeFe]-hydrogenase maturation proteins is sufficient for the heterologous assembly of the bioinorganic active site of several native and shuffled [FeFe]-hydrogenases...
Brownian dynamics and molecular dynamics study of the association between hydrogenase and ferredoxin from Chlamydomonas reinhardtiiHai Long
National Renewable Energy Laboratory, Golden, Colorado, USA
Biophys J 95:3753-66. 2008..The ferredoxin appeared to form reasonable complexes with the hydrogenase in multiple orientations, some of which were good candidates for inclusion in a transition state ensemble of configurations for electron transfer...
Functional studies of [FeFe] hydrogenase maturation in an Escherichia coli biosynthetic systemPaul W King
Basic Sciences Center, NREL, Golden, CO 80401, USA
J Bacteriol 188:2163-72. 2006..Together, these results demonstrate that the catalytic domain and a functionally complete set of Hyd maturation proteins are fundamental to achieving biosynthesis of catalytic [FeFe] hydrogenases...
Sustained hydrogen photoproduction by Chlamydomonas reinhardtii: Effects of culture parametersSergey Kosourov
Basic Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA
Biotechnol Bioeng 78:731-40. 2002....
Effects of extracellular pH on the metabolic pathways in sulfur-deprived, H2-producing Chlamydomonas reinhardtii culturesSergey Kosourov
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, U.S.A
Plant Cell Physiol 44:146-55. 2003..Carbon balances demonstrate that alternative metabolic pathways predominate at different pHs, and these depend on whether residual photosynthetic activity is present or not...
Expression of two [Fe]-hydrogenases in Chlamydomonas reinhardtii under anaerobic conditionsMarc Forestier
National Renewable Energy Laboratory, Golden, CO 80401, USA
Eur J Biochem 270:2750-8. 2003..To our knowledge, this work represents the first systematic study of expression of two algal [Fe]-hydrogenases in the same organism...
Discovery of two novel radical S-adenosylmethionine proteins required for the assembly of an active [Fe] hydrogenaseMatthew C Posewitz
National Renewable Energy Laboratory, Colorado School of Mines, Golden, CO 80401, USA
J Biol Chem 279:25711-20. 2004..This represents the first report on the nature of the accessory genes required for the maturation of an active [Fe] hydrogenase...
Effect of process variables on photosynthetic algal hydrogen productionJohn J Hahn
Department of Chemical Engineering, University of Missouri-Columbia, Columbia, Missouri 65211, USA
Biotechnol Prog 20:989-91. 2004..29 mL of hydrogen per milliliter of suspension. This was measured at atmospheric pressure during a 96 h production cycle. This corresponds to an average hydrogen production rate of 0.12 mmol/mL.h...
Hydrogen photoproduction is attenuated by disruption of an isoamylase gene in Chlamydomonas reinhardtiiMatthew C Posewitz
National Renewable Energy Laboratory, Golden, Colorado 80401, USA
Plant Cell 16:2151-63. 2004..reinhardtii H(2) photoproduction. Moreover, the results indicate that mere anaerobiosis is not sufficient to maintain hydrogenase gene expression without the underlying physiology, an important aspect of which is starch metabolism...
Continuous hydrogen photoproduction by Chlamydomonas reinhardtii: using a novel two-stage, sulfate-limited chemostat systemAlexander S Fedorov
National Renewable Energy Laboratory, Basic Science Center, 1617 Cole Boulevard, Golden, CO 80401, USA
Appl Biochem Biotechnol 121:403-12. 2005..The dependence of the H2 production rate on sulfate concentration in the medium, dilution rates in the PhBRs, and incident light intensity is reported...
The effect of sulfur re-addition on H(2) photoproduction by sulfur-deprived green algaeSergey Kosourov
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA
Photosynth Res 85:295-305. 2005..These results show that the presence of a more oxidized PQ pool releases some of the down-regulation of electron transport caused by the anaerobic conditions...
Blocking of electron donation by Mn(II) to Y(Z*) following incubation of Mn-depleted photosystem II membranes with Fe(II) in the lightBoris K Semin
Basic Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA
Biochemistry 41:5854-64. 2002..Since hydroxylamine does not reduce the Fe [> or =Fe(III)] specifically bound to the HA(Z) site, NH2OH must donate to Y(Z*) through its own site or directly to P680+...
