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Combined effect of CO2 and light on the N2-fixing cyanobacterium Trichodesmium IMS101: Physiological responses 1[OA]
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SYSNO ASEP 0352853 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Combined effect of CO2 and light on the N2-fixing cyanobacterium Trichodesmium IMS101: Physiological responses 1[OA] Author(s) Kranz, S. A. (DE)
Levitan, O. (IL)
Richter, K.-U. (DE)
Prášil, Ondřej (MBU-M) RID, ORCID
Berman-Frank, I. (IL)
Rost, B. (DE)Source Title Plant Physiology. - : Oxford University Press - ISSN 0032-0889
Roč. 154, č. 1 (2010), s. 334-345Number of pages 12 s. Language eng - English Country US - United States Keywords Trichodesmium IMS101 ; cyanobacterium ; CO2 Subject RIV EE - Microbiology, Virology R&D Projects GA206/08/1683 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50200510 - MBU-M (2005-2011) UT WOS 000281570000027 DOI 10.1104/pp.110.159145 Annotation 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 Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2011
Number of the records: 1