English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Bicarbonate is an alternative carbon source for production of photosynthetic microalgae, although sparging of CO2-enriched gas is commonly practised, its efficiency seems to be scarcely considered. This study evaluated the photosynthetic activities of microalgae (Tetradesmus wisconsinensis) using chlorophyll fluorescence under different concentrations of bicarbonate (HCO3-) and CO2. Chlorophyll fluorescence analysis showed noticeable difference in photosynthetic activity between the bicarbonate (HCO3-) and CO2 supplied cultures. The JIP-test parameters obtained for the cultures supplemented by HCO3- or CO2 were distinct, but of similar values in quantum yield of PSII. The typical polyphasic rise, called the OJIP curves, showed a typical difference between the treatments at the J and I inflection of the fluorescence transient curve. Both HCO3- (20 mM) and CO2 (5%, v/v) gave higher biomass yield than the other carbon regimes, i.e., 673 ± 12 and 658 ± 11 mg L-1, respectively. We concluded that bicarbonate resulted in similar photosynthetic yield as CO2 supplementation.

photosynthetica

Special issue in honour of Prof. Reto J. Strasser - Photosynthesis response of microalgae (Tetradesmus wisconsinensis) to different inorganic carbon sources probed with chlorophyll fluorescence analysis