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Photosynthesis and biochemical characterization of the green alga Chlamydopodium fusiforme (Chlorophyta) grown in a thin-layer cascade
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SYSNO ASEP 0576019 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Photosynthesis and biochemical characterization of the green alga Chlamydopodium fusiforme (Chlorophyta) grown in a thin-layer cascade Tvůrce(i) Torzillo, G. (IT)
Alvarez-Gomez, F. (ES)
Celis-Pla, P. S. M. (CL)
Rearte, A. (AR)
Gomez-Serrano, C. (ES)
Silva Benavides, A. M. (CR)
Štěrbová, Karolína (MBU-M)
Caporgno, Martín (MBU-M)
Touloupakis, E. (IT)
Masojídek, Jiří (MBU-M) RID, ORCID
Figueroa, F. L. (ES)Zdroj.dok. Photochemical & Photobiological Sciences - ISSN 1474-905X
Roč. 22, č. 9 (2023), s. 2231-2245Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova Chlamydopodium fusiforme ; Photosynthesis ; Chlorophyll fluorescence ; Microalgae ; Biomass composition Obor OECD Biochemistry and molecular biology CEP LO1416 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora MBU-M - RVO:61388971 UT WOS 001012577800002 EID SCOPUS 85161986526 DOI 10.1007/s43630-023-00444-y Anotace Photosynthesis, growth and biochemical composition of the biomass of the freshwater microalga Chlamydopodium fusiforme cultures outdoors in a thin-layer cascade were investigated. Gross oxygen production measured off-line in samples taken from the outdoor cultures was correlated with the electron transport rate estimated from chlorophyll a fluorescence measurements. According to photosynthesis measurements, a mean of 38.9 +/- 10.3 mol of photons were required to release one mole of O, which is 4.86 times higher than the theoretical value (8 photons per 1 O-2). In contrast, according to the fluorescence measurements, a mean of 11.7 +/- 0.74 mol of photons were required to release 1 mol of O-2. These findings indicate that fluorescence-based photosynthesis rates may not be fully replace oxygen measurements to evaluate the performance of an outdoor culture. Daily gross biomass productivity was 0.3 g DW L-1 day(-1) consistently for 4 days. Biomass productivity was strongly affected by the suboptimal concentration at which the culture was operated and by the respiration rate, as the substantial volume of culture was kept in the dark (about 45% of the total volume). As the cells were exposed to excessive light, the photosynthetic activity was mainly directed to the synthesis of carbohydrates in the biomass. In the morning, carbohydrate content decreased because of the dark respiration. Per contra, protein content in the biomass was lower at the end of the day and higher in the morning due to carbohydrate consumption by respiration. The data gathered in these trials are important for the future exploitation of Chlamydopodium fusiforme as a potential novel species in the field of microalgae for the production of bio-based compounds. Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2024 Elektronická adresa https://link.springer.com/article/10.1007/s43630-023-00444-y
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