Changes in the cell composition of the marine microalga, Nannochloropsis gaditana, during a light:dark cycle
Abstract
Nannochloropsis gaditana was grown in semicontinuous culture with a circadian light:dark cycle in a flat-panel photobioreactor. The microalga had a maximal protein content (3 pg cell-1) after 6 h light and then only storage compounds were accumulated that were consumed during the dark phase. Carbohydrates reached their maximum value after 8 h (0.8 pg cell-1) and lipids after 12 h light (2.5 pg cell-1). The results demonstrated that young or adult microalgae might be obtained according to the time of day.
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Chlorophyll content increases during the light period and starts to decrease with the beginning of a dark period.
“It was reported that chlorophyll content increases during the light period and starts to decrease with the beginning of a dark period (Fabregas et al., 2002; de Winter et al., 2013; Braun et al., 2014).”
From Perspectives of fluorescence spectroscopy for online monitoring in microalgae industry (2022) · cites this paper as Fabregas et al., 2002
Chlorophyll content in microalgae is tightly correlated with light intensity and circadian rhythms.
“Chlorophyll content in the microalgae is tightly correlated with light intensity and circadian rhythms.”
From Perspectives of fluorescence spectroscopy for online monitoring in microalgae industry (2022) · cites this paper as Fabregas et al., 2002
Experiments using a day/night cycle lead the biomass to follow circadian rhythms, with cell size increasing during the day while cell concentration increases during the night, leading to misleading OD measurements.
“Experiments using a day/night cycle lead the biomass to follow circadian rhythms, which means that cell size increases during the day while the cell concentration increases during the night (due to cell division), leading to misleading OD measurements (Fabregas et al., 2002; de Winter et al., 2013).”
From Perspectives of fluorescence spectroscopy for online monitoring in microalgae industry (2022) · cites this paper as Fabregas et al., 2002
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References 15 · Cited by 82
- Authors
- Fábregas, J., Maseda, A., Domínguez, A., Ferreira, M., & Otero, A.
- Affiliations
- Universidade de Santiago de Compostela (ES)
- Corresponding author
- Fábregas, Jaime
- Venue
- Biotechnology Letters
- Published
- 2002-10
- Volume
- 24
- Issue
- 20
- Pages
- 1699-1703
- ISSN
- 0141-5492 (ISSN-L)
- 1573-6776
- OpenAlex
- W114402821
- Cited by
- 82
- References
- 15
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 7 · 2020: 9 · 2019: 7 · 2018: 4 · 2017: 10 · 2016: 9 · 2015: 6 · 2014: 5 · 2013: 3 · 2012: 4
- FWCI
- 0.33
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Biotechnology Letters (publishedVersion)
- Funders
- Xunta de Galicia
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Keywords
- Nannochloropsis gaditana, cell composition, protein content, storage compounds, carbohydrates, lipids, photobioreactors, microalgae growth
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