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Changes in photosynthesis, growth and biomass composition in outdoor Chlorella g120 culture during the metabolic shift from heterotrophic to phototrophic cultivation regime

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    SYSNO ASEP0544042
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleChanges in photosynthesis, growth and biomass composition in outdoor Chlorella g120 culture during the metabolic shift from heterotrophic to phototrophic cultivation regime
    Author(s) Masojídek, Jiří (MBU-M) RID, ORCID
    Ranglová, Karolína (MBU-M) ORCID
    Rearte, T. A. (AR)
    Pla, P.S. M. C. (CL)
    Torzillo, G. (IT)
    Benavides, A. M. S. (CR)
    Neori, A. (IL)
    Gómez, C. (ES)
    Alvarez-Gomez, F. (ES)
    Lukeš, Martin (MBU-M) ORCID
    Caporgno, Martín (MBU-M)
    Abdala, R. (ES)
    Miazek, K. (BE)
    Massocato, T. F. (BR)
    da Silva, J. C. (BR)
    Atzmueller, R. (AT)
    Al Mahrouqui, H. (OM)
    Estrella, F. S. (ES)
    Figueroa, F. L. (ES)
    Article number102303
    Source TitleAlgal Research-Biomass Biofuels and Bioproducts - ISSN 2211-9264
    Roč. 56, JUN 2021 (2021)
    Number of pages13 s.
    Languageeng - English
    CountryNL - Netherlands
    KeywordsChlorophyll fluorescence ; Microalgae ; Photosynthesis ; Physiology ; Thin-layer cascade ; Trophic conversion
    Subject RIVEE - Microbiology, Virology
    OECD categoryMicrobiology
    R&D ProjectsLO1416 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Method of publishingLimited access
    Institutional supportMBU-M - RVO:61388971
    UT WOS000663410100009
    EID SCOPUS85104606089
    DOI10.1016/j.algal.2021.102303
    AnnotationUp to now, scarce information has been available regarding major photobiochemical changes that accompany the metabolic shift from heterotrophy to phototrophy in microalgae cells. In the present trials the trophic conversion from heterotrophic to phototrophic growth regime was studied in the microalga Chlorella vulgaris g120 grown in outdoor thin-layer cascades. The crucial question was whether Chlorella g120 can undergo the photoacclimation of its photosynthetic apparatus under natural irradiance. As for comparison the phototrophic strain Chlorella vulgaris R-117 was cultured in parallel. Various in-situ and ex-situ monitoring techniques namely oxygen production and chlorophyll fluorescence were tested to characterize physiological response of the Chlorella g120 culture during photoacclimation and correlate it with growth. We show that Chlorella g120 can undergo the metabolic shift from heterotrophic to phototrophic growth regime, but its conversion is. A rather high respiration rate was interpreted as a strategy to dissipate the unused light energy. Chlorella g120 was found as the strain characterized by a small-antenna size strain (low
    WorkplaceInstitute of Microbiology
    ContactEliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231
    Year of Publishing2022
    Electronic addresshttps://www.sciencedirect.com/science/article/pii/S2211926421001223?via%3Dihub
Number of the records: 1