Interactive effects of light quality and culturing temperature on algal cell size, biomass doubling time, protein content, and carbohydrate content

Li, Xiangpeng; Manuel, Jacob; Slavens, Shelyn; Crunkleton, Daniel W.; Johannes, Tyler W.

doi:10.1007/s00253-020-11068-y

Cited by 28 publications

(9 citation statements)

References 55 publications

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“…Microalgae have developed a series of strategies to adapt to the variable light available in the marine environment, among which, light wavelength is critical, not only for photosynthesis but also for the production of different metabolites (Guo et al ., 2007; Yan et al ., 2019). The specific light spectrum, that is, blue light, restricted the photosynthetic activity of Porphyra leucosticte , catalyzed the composition of P. leucosticte pigments (Korbee et al ., 2005), carbon dioxide (CO 2 ) fixation of Chlorella pyrenoidosa (Gunawan et al ., 2018), and nutrition metabolism of Chlamydomonas reinhardtii (Li et al ., 2021). Photosynthetic activity and HA of P. globosa varied significantly with the light regime.…”

Section: Discussionmentioning

confidence: 99%

Regulation of photosynthetic and hemolytic activity of Phaeocystis globosa under different light spectra

Song

Zhang

et al. 2023

New Phytologist

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Summary Phaeocystis globosa frequently proliferates in eutrophic waters and forms ichthyotoxic algal blooms that cause massive fish mortalities in marine ecosystems. One of the ichthyotoxic metabolites was identified as the glycolipid‐like hemolytic toxin, reported to be initiated under light conditions. However, the association between hemolytic activity (HA) and photosynthesis of P. globosa remained unclear. Light spectra (blue, red, green, and white) and 3‐(3,4‐dichlorophenyl)‐1,1‐dimethylurea (DCMU) were selected as the stressors to stimulate the hemolytic response of P. globosa in relation to the light and dark photosynthesis reaction. Hemolytic activity in P. globosa was sensitive to the light spectrum as it decreased from 93% to nearly undetectable (1.6%) within 10 min of transfer from red (630 nm) to green light (520 nm). This indicates that the vertical transformation of P. globosa from deep to surface waters (dominated by green light and all light spectra, respectively) may drive the hemolytic response in coastal waters. However, regulation of photosynthetic electron transfer in the light reaction of P. globosa was excluded by the evidence of inconsistent response of HA to photosynthetic activity. The biosynthesis of HA may interfere with the pathway of photopigments diadinoxanthin or fucoxanthin, and the metabolism of three‐ and five‐carbon sugars (GAP and Ru5P, respectively), which ultimately lead to changes in the alga's hemolytic carbohydrate metabolism.

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Section: Discussionmentioning

confidence: 99%

Regulation of photosynthetic and hemolytic activity of Phaeocystis globosa under different light spectra

Song

Zhang

et al. 2023

New Phytologist

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“…The optimal growth conditions are different for different species of algae (Nakajima et al, 2020;Toth et al, 2020;Li et al, 2021). Long et al (2011) reported that the optimal growth conditions for spring algal species are as follows: temperature, 20°C; light intensity, 4,700 lx; N concentration, 3.5 mg L −1 ; P concentration, 0.3 mg L −1 ; and water flow rate, 0.1 m s −1 .…”

Section: Discussionmentioning

confidence: 99%

Interaction Effects of Temperature, Light, Nutrients, and pH on Growth and Competition of Chlorella vulgaris and Anabaena sp. Strain PCC

Meng

Chen

Wang

et al. 2021

Front. Environ. Sci.

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Interaction effects of temperature, light, nutrients, and pH on growth and competition of Chlorella vulgaris and Anabaena sp. strain PCC were evaluated using an orthogonal design method to elucidate how these environment factors promote the growth of beneficial algae and limit the growth of harmful algae. The optimal conditions for the growth of C. vulgaris in the mono-culture system were as follows: temperature, 35°C; light, 660 lx; N concentration, 0.36 mg L−1; P concentration, 0.1 mg L−1; and pH, 9.0; and those for Anabaena were as follows: temperature, 30°C; light, 6,600 lx; N concentration, 0.18 mg L−1; P concentration, 0.1 mg L−1; and pH, 7.0. The optimal conditions for the growth of C. vulgaris in the co-culture system were as follows: temperature, 25°C; light, 4,400 lx; N concentration, 0.18 mg L−1; P concentration, 0.5 mg L−1; and pH, 6.0; and those for Anabaena were as follows: temperature, 35°C; light, 4,400 lx; N concentration, 0.36 mg L−1; P concentration, 0.5 mg L−1; and pH, 6.0. Both competition-inhibition parameters of Anabaena against C. vulgaris and those of C. vulgaris against Anabaena were the largest under the following conditions: temperature, 30°C; light intensity, 6,600 lx; N concentration, 0.36 mg L−1; P concentration, 0.025 mg L−1; and pH, 8.0. According to the Lotka–Volterra competition model, Anabaena won in the competition in the co-culture system with the following conditions: 1) temperature, 15°C; light, 660 lx; total N (TN), 0.18 mg L−1; total P (TP), 0.025 mg L−1; pH, 6; 2) temperature, 15°C; light, 2,200 lx; TN, 0.36 mg L−1; TP, 0.025 mg L−1; pH, 7; 3) temperature, 15°C; light, 6,600 lx; TN, 3.6 mg L−1; TP, 0.5 mg L−1; pH, 9; 4) temperature, 30°C; light, 4,400 lx; TN, 0.18 mg L−1; TP, 0.05 mg L−1; pH, 9; 5) temperature, 35°C; light, 660 lx; TN, 3.6 mg L−1; TP, 0.05 mg L−1; pH, 8; and 6) temperature, 35°C; light, 2,200 lx; TN, 0.72 mg L−1; TP, 0.025 mg L−1; pH, 9. However, C. vulgaris could not win in the competition in the co-culture system under all conditions tested.

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“…However, some studies have also indicated that red and other types of light can be beneficial for protein synthesis (Abiusi et al, 2014). In a study conducted by Li et al (2021), the effects of three LED light sources-blue light, yellow-white mixing light and orange-red mixing light-on the PC of C. reinhardtii were examined within a temperature range of 24 °C to 32 °C. The study by Kumar et al (2023a) reported that variation in illumination period of light and growing temperature caused significant changes in the protein accumulation pattern of wheatgrass.…”

Section: Factors Influencing Protein Synthesis In Algaementioning

confidence: 99%

“…In a study conducted by Li et al . (2021), the effects of three LED light sources—blue light, yellow‐white mixing light and orange‐red mixing light—on the PC of C . reinhardtii were examined within a temperature range of 24 °C to 32 °C.…”

Section: Factors Influencing Protein Synthesis In Algaementioning

confidence: 99%

Review on microalgae protein and its current and future utilisation in the food industry

Bhatnagar

Gururani

Singh

et al. 2023

Int J of Food Sci Tech

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SummaryMicroalgae, the photosynthetic microorganisms, open novel commercial opportunities for developing new products because of their abundance in protein, carbohydrates, pigments, vitamins and minerals. These microorganisms possess several advantages such as rapid growth, minimal land and water requirements and adaptability to various environmental conditions. As concerns arise regarding the ability of animal and plant‐based sources to meet future protein demands, researchers have turned their attention to microalgae like Spirulina and Chlorella for various applications. Microalgae typically contain around 30% protein and in case of few cyanobacteria it can reach up to 55%–60%, surpassing the protein content of conventional sources. Numerous studies have investigated the utilisation of algal biomass to enhance the protein content of a wide range of food products, including cookies, bread, yoghurt, snacks, dairy alternatives and soups. This comprehensive review aims to provide a systematic exploration of microalgae protein and its current and future utilisation in the food industry.

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Interactive effects of light quality and culturing temperature on algal cell size, biomass doubling time, protein content, and carbohydrate content

Cited by 28 publications

References 55 publications

Regulation of photosynthetic and hemolytic activity of Phaeocystis globosa under different light spectra

Regulation of photosynthetic and hemolytic activity of Phaeocystis globosa under different light spectra

Interaction Effects of Temperature, Light, Nutrients, and pH on Growth and Competition of Chlorella vulgaris and Anabaena sp. Strain PCC

Review on microalgae protein and its current and future utilisation in the food industry

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