Photosynthesis and biochemical characterization of the green alga Chlamydopodium fusiforme (Chlorophyta) grown in a thin-layer cascade

• DOI: 10.1007/s43630-023-00444-y
• Publication Date: 2023-06-17T10:01:57Z
• Authors: Giuseppe Torzillo; Félix Álvarez-Gómez; Paula S. M. Celis...; Agustín Rearte; Cintia Gómez-Serrano; Ana Margarita Sil...; Karolína Štěrbová; Martín Caporgno; Eleftherios Toulo...; Jiří Masojídek; Felix L. Figueroa
• Keywords: Respiration rate

Photosynthesis, growth and biochemical composition of the biomass freshwater microalga Chlamydopodium fusiforme cultures outdoors in a thin-layer cascade were investigated. Gross oxygen production measured off-line samples taken from outdoor was correlated with electron transport rate estimated chlorophyll fluorescence measurements. According to photosynthesis measurements, mean 38.9 ± 10.3 mol photons required release one mole O2, which is 4.86 times higher than theoretical value (8 per 1 O2). In contrast, according 11.7 0.74 O2. These findings indicate that fluorescence-based rates may not be fully replace measurements evaluate performance an culture. Daily gross productivity 0.3 g DW L-1 day-1 consistently for 4 days. Biomass strongly affected by suboptimal concentration at culture operated respiration rate, as substantial volume kept dark (about 45% total volume). As cells exposed excessive light, photosynthetic activity mainly directed synthesis carbohydrates biomass. morning, carbohydrate content decreased because respiration. Per contra, protein lower end day morning due consumption The data gathered these trials are important future exploitation potential novel species field microalgae bio-based compounds.