Počet záznamů: 1

Combined effect of CO2 and light on the N2-fixing cyanobacterium Trichodesmium IMS101: Physiological responses 1[OA]

  1. 1.
    0352853 - MBU-M 2011 RIV US eng J - Článek v odborném periodiku
    Kranz, S. A. - Levitan, O. - Richter, K.-U. - Prášil, Ondřej - Berman-Frank, I. - Rost, B.
    Combined effect of CO2 and light on the N2-fixing cyanobacterium Trichodesmium IMS101: Physiological responses 1[OA].
    Plant Physiology. Roč. 154, č. 1 (2010), s. 334-345 ISSN 0032-0889
    Grant CEP: GA ČR GA206/08/1683
    Výzkumný záměr: CEZ:AV0Z50200510
    Klíčová slova: Trichodesmium IMS101 * cyanobacterium * CO2
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 6.451, rok: 2010

    We examined the responses of Trichodesmium IMS101 grown under a matrix of low and high levels of pCO2 and irradiance. Growth rates as well as cellular carbon and nitrogen contents increased with increasing pCO2 and light levels in the cultures. The pCO2-dependent stimulation in organic carbon and nitrogen production was highest under low light. High pCO2 stimulated rates of N2 fixation and prolonged the duration, while high light affected maximum rates only. Gross photosynthesis increased with light but did not change with pCO2. HCO3 was identified as the predominant carbon source taken up in all treatments. Inorganic carbon uptake increased with light, but only gross CO2 uptake was enhanced under high pCO2. A comparison between carbon fluxes in vivo and those derived from 13C fractionation indicates high internal carbon cycling, especially in the low-pCO2 treatment under high light
    Trvalý link: http://hdl.handle.net/11104/0192258