Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| Light absorption and growth response of Dunaliella under different light qualities | |
Li, Yongfu1,2,3; Li, Ling1,2; Liu, Jianguo1,2; Qin, Ruiyang1,2,4
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| 2020-03-03 | |
| Source Publication | JOURNAL OF APPLIED PHYCOLOGY
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| ISSN | 0921-8971 |
| Pages | 12 |
| Corresponding Author | Liu, Jianguo(jgliu@qdio.ac.cn) |
| Abstract | Dunaliella sp. (formerly D. salina MACC/C43) was batch-cultured under blue (BL), red (RL), or white light (WL) provided by light-emitting diodes (LED) and white light provided by fluorescent lamps (WF), respectively, to assess growth characteristic. Growth under blue light coupled with red light (BL + RL) was also measured and compared with that under BL, WL, and RL, respectively, in a laboratory-scale photobioreactor. Algae under monochromatic blue light had the highest specific growth rate (mu) with a value of 0.51 day(-1), followed by WF (0.49 day(-1)), WL (0.47 day(-1)), and RL (0.44 day(-1)). Red light significantly enhanced Chl a and carotenoid contents, with values of 20.1 and 9.6 pg cell(-1), respectively. BL + RL increased the mu (0.20 day(-1)) compared to those rates under pure BL or RL ranging from 0.17 to 0.18 day(-1), in batch culture for 14 days using a photobioreactor with 3.2 L working volume. Cells absorb more photons for photosynthesis in the blue band. Mean extinction coefficient calculated based on the modified Lambert-Bill law at the blue light region (430-480 nm) was 0.885 cm(-1), which is 22, 11, and 15% higher than that of the red light region (630-700 nm), green light region (500-560 nm), and photosynthetically active radiation region (400-700 nm), respectively. Blue light also improved the initial slope and the maximum O-2 production rate in a photosynthesis-irradiance curve, whereas it lowered the compensation irradiance and dark respiration rate. The photochemistry of photosystem II also displayed its optimal performance under BL. LEDs are a suitable light source for Dunaliella sp. growth, and BL + RL promotes rapid division of algal cells. |
| Keyword | Dunaliella Light quality Blue light Red light Photosynthesis Growth |
| DOI | 10.1007/s10811-020-02057-9 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[U1706209] ; Pilot National Laboratory for Marine Science and Technology (Qingdao)[MS2019NO01] ; Shandong Provincial Natural Science Foundation, China[ZR2017QC008] |
| WOS Research Area | Biotechnology & Applied Microbiology ; Marine & Freshwater Biology |
| WOS Subject | Biotechnology & Applied Microbiology ; Marine & Freshwater Biology |
| WOS ID | WOS:000518050100001 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/165560 |
| Collection | 实验海洋生物学重点实验室 |
| Corresponding Author | Liu, Jianguo |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Nantong Res & Dev Ctr Marine Sci & Technol, Inst Oceanol, Nantong 226019, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Li, Yongfu,Li, Ling,Liu, Jianguo,et al. Light absorption and growth response of Dunaliella under different light qualities[J]. JOURNAL OF APPLIED PHYCOLOGY,2020:12. |
| APA | Li, Yongfu,Li, Ling,Liu, Jianguo,&Qin, Ruiyang.(2020).Light absorption and growth response of Dunaliella under different light qualities.JOURNAL OF APPLIED PHYCOLOGY,12. |
| MLA | Li, Yongfu,et al."Light absorption and growth response of Dunaliella under different light qualities".JOURNAL OF APPLIED PHYCOLOGY (2020):12. |
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| Light absorption and（1171KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View | |
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