Increased hydrogen photoproduction by means of a sulfur-deprived Chlamydomonas reinhardtii D1 protein mutant (Articolo in rivista)

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  • Increased hydrogen photoproduction by means of a sulfur-deprived Chlamydomonas reinhardtii D1 protein mutant (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ijhydene.2008.07.093 (literal)
Alternative label
  • Giuseppe Torzillo; Alberto Scoma; Cecilia Faraloni; Alba Ena; Udo Johanningmeier (2009)
    Increased hydrogen photoproduction by means of a sulfur-deprived Chlamydomonas reinhardtii D1 protein mutant
    in International journal of hydrogen energy
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Giuseppe Torzillo; Alberto Scoma; Cecilia Faraloni; Alba Ena; Udo Johanningmeier (literal)
Pagina inizio
  • 4529 (literal)
Pagina fine
  • 4536 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 34 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Conference Information: 2nd World Hydrogen Technologies Convention, NOV, 2007 Tuscany, ITALY (literal)
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  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • Istituto per lo Studio degli Ecosistemi (ISE), CNR; Martin-Luther-Universät Halle-Wittemberg, Institut für Planzenphysiologie, Halle-Saale, Germany (literal)
Titolo
  • Increased hydrogen photoproduction by means of a sulfur-deprived Chlamydomonas reinhardtii D1 protein mutant (literal)
Abstract
  • The photoproduction of H2 was studied in a sulfur-deprived Chlamydomonas reinhardtii D1 mutant that carried a double amino acid substitution. The leucine residue L159 was replaced by isoleucine, and the asparagine N230 was replaced by tyrosine (L159I-N230Y). Phenotypic characterization of the mutant showed some interesting features compared to its wild type, namely: (1) a lower chlorophyll content; (2) a higher photosynthetic capacity and higher relative quantum yield of photosynthesis; (3) a higher respiration rate; (4) a very high conversion of violaxanthin to zeaxanthin during H2 production; (5) a prolonged period of H2 production. In standard conditions, the mutant produced more than 500 ml of H2, that is, more than one order of magnitude greater than its wild type, and about 5-times greater than the CC124 strain that was used for comparison. The better performance of the mutant was mainly the result of a longer production period. Biogas produced contained up to 99.5% H2. (literal)
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