Effect of blue and red-orange LEDs on the growth and biochemical profile of Chlamydomonas reinhardtii

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

doi:10.1007/s10811-021-02411-5

Cited by 7 publications

(4 citation statements)

References 52 publications

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“…Meanwhile, the fresh and dry weights of XZX24 (HZY261) under red-light treatment were also higher than those under blue-light treatment (Figure 3) [29,30]. This shows that red light can promote rice seedling elongation and dry matter accumulation, which is consistent with the results for cotton [31] and chrysanthemum [32]. This result is contrary to the findings of Gao [30,33], which show that blue light can promote plant growth and dry matter accumulation.…”

Section: Red and Blue Lights Can Regulate The Early Photomorphogenesi...supporting

confidence: 61%

Photomorphogenesis and Photosynthetic Traits Changes in Rice Seedlings Responding to Red and Blue Light

Ren

Liu

Tang

et al. 2023

IJMS

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The purpose of this study is to determine the effects of red and blue lights on the photomorphogenesis and photosynthetic traits of rice seedlings. The rice seedlings were cultured with red light (R), blue light (B), combined red and blue lights (R3B1/R1B1/R3B1), and white light (CK) as the control. The combined application of red and blue lights could promote the growth of rice seedlings to varying degrees; enhance photosynthesis by increasing the seedling leaf area, chlorophyll content, and chlorophyll fluorescence; improve root characteristics by increasing root number, root volume, and root activity; and thus increase the dry matter accumulation of rice seedlings. In addition, the combination of red and blue lights could regulate the expression of genes related to photosynthesis in rice leaves, affect the activity of the Rubisco enzyme, and then affect the photosynthesis of rice seedlings. These results indicate that red and blue lights have direct synergistic effects, which can regulate the growth of rice seedlings and promote the morphogenesis of rice seedlings. The combined application of red and blue lights can be used to supplement the light in rice-factory seedling raising.

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Section: Red and Blue Lights Can Regulate The Early Photomorphogenesi...supporting

confidence: 61%

Photomorphogenesis and Photosynthetic Traits Changes in Rice Seedlings Responding to Red and Blue Light

Ren

Liu

Tang

et al. 2023

IJMS

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“…Previous studies regarding optimum spectral light quality strategies to improve algae growth showed that blue and red-LED light combinations promote microalgae biomass compared with monochromatic or full spectrum of white light [20], [23]. However, results of related studies are not consistent and show species dependent pattern about optimal red and blue rations.…”

Section: Discussionmentioning

confidence: 90%

Effects of Green Light Supplementation with Red and Blue Combinations of LED Light Spectrums On The Growth of Chlamydomonas Reinhardtii (Chlorophyta)

Tellİ

ALJAMİLİ

2022

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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Mikroalg kültürlerinde uygulanacak optimum ışıklandırma stratejilerinin belirlenmesi, biyoaktif moleküllerin biyosentezi ve biokütle artışı sağlamada önemli bir parametredir. LED ışık teknolojilerinde son yıllarda yaşanan ilerlemeler, belirli ışık spektrumlarının ve bunların farklı karışımlarının mikro alglerin fizyolojik tepkilerine olan etkilerini araştırmak için önemli fırsatlar sağlamaktadır. Bu çalışmada, beyaz ışık, kırmızı (628 nm) ve mavi (462 nm) ışık spektrumları tek başına ve sırasıyla 1:1; 2:1 ve 1:2 oranlarında toplam ışık şiddeti 40 μmol foton m-2 s-1 olacak şekilde Chlamydomonas reinhardtii mikroalg türünün büyümesine olan etkileri araştırılmıştır. Ayrıca, yeşil ışık katkısının mikroalg büyümesine olan etkileri, kırmızı:yeşil (1:2) ışık karışımında 3, 6, 9, 12 ve 15 μmol foton m-2 s-1 şiddetindeki mavi ışık şiddeti azaltılıp yerine yeşil ışık katkısı sağlanarak araştırılmıştır. Elde edilen sonuçlara göre, C. reinhadhtii mikroalg türünün büyüme oranları büyükten küçüğe doğru sırasıyla kırmızı:mavi (1: 2) > kırmızı:mavi (2: 1) > kırmızı:mavi (1: 1) > kırmızı > beyaz> mavi ışık olarak bulunmuştur. Yeşil ışık katkısında ise, 3 μmol foton m-2 s-1 şiddetinde mavi ışıkla yer değiştirilen yeşil ışığın, mikroalg büyümesinde ve biokütle artışında kontrol grubu olarak kullanılan kırmızı:mavi (1:2) grubuna göre istatistiksel olarak kayda değer bir artış sağladığı bulunmuştur. Yeşil ışık katkısının uygulandığı tüm deneysel gruplarda kontrol grubuna oranla klorofil konsantrasyonunda kayda değer bir artış gözlemlenmiştir. Bu çalışmada 3 μmol foton m-2 s-1 şiddetindeki yeşil ışık katkısının kırımızı:mavi ışık karışımı ile birlikte mikroalg büyümesinde, klorofil-a konsantrasyonunda ve kuru ağılık eldesinde kayda değer bir artışa neden olduğu bulunmuştur.

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“…The search for optimal conditions is also conducted in the direction of the spectral composition of light used for microalgae cultivation [24,26,[29][30][31] and the optimal duration of the photoperiod [25,32,33]. The influence of the spectrum is outside the topic of this work, although it is worth noting that several publications have shown that the daylight spectrum as a whole is close to monochrome lighting in terms of its effect on the productivity of microalgae.…”

Section: Introductionmentioning

confidence: 99%

“…If LED lighting is used, this does not significantly increase the cost of cultivation. Since the absorption of CO 2 , as a method of reducing emissions into the atmosphere, is associated with the further transformation of microalgae biomass into energy products [35], the criterion for optimizing the cultivation of microalgae, in addition to the rate of biomass growth and the intensity of CO 2 absorption, is the content of the main biochemical components, especially lipids as raw materials for the production of biodiesel [14,21,22,29,32]. It is important to note that high CO 2 concentrations are a stress for microalgae, and therefore various adaptation methods are used in experimental studies, in particular the Adaptive Laboratory Evolution (ALE) technique described in detail in [11].…”

Section: Introductionmentioning

confidence: 99%

Effects of Light Intensity on the Growth and Biochemical Composition in Various Microalgae Grown at High CO2 Concentrations

Chunzhuk,

Grigorenko,

Kiseleva

et al. 2023

Plants

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In modern energy, various technologies for absorbing carbon dioxide from the atmosphere are being considered, including photosynthetic microalgae. An important task is to obtain maximum productivity at high concentrations of CO2 in gas–air mixtures. In this regard, the aim of the investigation is to study the effect of light intensity on the biomass growth and biochemical composition of five different microalgae strains: Arthrospira platensis, Chlorella ellipsoidea, Chlorella vulgaris, Gloeotila pulchra, and Elliptochloris subsphaerica. To assess the viability of microalgae cells, the method of cytochemical staining with methylene blue, which enables identifying dead cells during microscopy, was used. The microalgae were cultivated at 6% CO2 and five different intensities: 80, 120, 160, 200, and 245 μmol quanta·m−2·s−1. The maximum growth rate among all strains was obtained for C. vulgaris (0.78 g·L−1·d−1) at an illumination intensity of 245 µmol quanta·m−2·s−1. For E. subsphaerica and A. platensis, similar results (approximately 0.59 and 0.25 g·L−1·d−1 for each strain) were obtained at an illumination intensity of 160 and 245 µmol quanta·m−2·s−1. A decrease in protein content with an increase in illumination was noted for C. vulgaris (from 61.0 to 46.6%) and A. platensis (from 43.8 to 33.6%), and a slight increase in lipid content was shown by A. platensis (from 17.8 to 21.4%). The possibility of increasing microalgae biomass productivity by increasing illumination has been demonstrated. This result can also be considered as showing potential for enhanced lipid microalgae production for biodiesel applications.

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Effect of blue and red-orange LEDs on the growth and biochemical profile of Chlamydomonas reinhardtii

Cited by 7 publications

References 52 publications

Photomorphogenesis and Photosynthetic Traits Changes in Rice Seedlings Responding to Red and Blue Light

Photomorphogenesis and Photosynthetic Traits Changes in Rice Seedlings Responding to Red and Blue Light

Effects of Green Light Supplementation with Red and Blue Combinations of LED Light Spectrums On The Growth of Chlamydomonas Reinhardtii (Chlorophyta)

Effects of Light Intensity on the Growth and Biochemical Composition in Various Microalgae Grown at High CO2 Concentrations

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