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Effects of light quality on growth rates and pigments of Chaetoceros gracilis (Bacillariophyceae)
Li Yongfu1,2,3; Li Ruiqian4; Yi Xiaoyan5
2020-05-01
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume38Issue:3Pages:795-801
Corresponding AuthorLi Yongfu(liyongfu@qdio.ac.cn)
AbstractLight is an important parameter in algal culturing. In this work, the effects of different light qualities on growth of the marine diatom Chaetoceros gracilis are evaluated. The cells were cultured under light quantum flux density of 60 mu mol photons/(m(2)center dot s) with nine light qualities: LED red light (LR), LED blue light (LB), LED red plus LED blue light (LR+LB), LED white light (LW), fluorescent white light (FW), and combinations of LW and FW lights with increased proportions of red or blue light (FW+LR, FW+LB, LW+LR, and LW+LB). Blue light promoted the growth of C. gracilis largely. Three light qualities, FW+LR, LW+LR, and LR, resulted in the lowest growth rate. Both chlorophyll and carotenoids reached the highest level under LB and the lowest level under LR among monochromatic light sources; however, increasing of the proportion of blue or red light in the white light induced an increase of the chlorophyll and carotenoid concentrations. Light absorption ability of microalgae was critical for the growth of these organisms, as we observed a positive correlation between the extinction coefficient at different wavelengths and the specific growth rate. These findings are of importance to improve the culturing of this alga in bioreactors.
KeywordChaetoceros gracilis light quality pigments wavelength effect mean extinction coefficients
DOI10.1007/s00343-019-9171-0
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000536606000017
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167567
Collection实验海洋生物学重点实验室
Corresponding AuthorLi Yongfu
Affiliation1.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, Key Lab Expt Marine Biol, 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.Ocean Univ China, Sch Int Affairs & Publ Adm, Qingdao 266100, Peoples R China
5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
First Author AffilicationCenter for Ocean Mega-Science, Chinese Academy of Sciences;  Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationCenter for Ocean Mega-Science, Chinese Academy of Sciences;  Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li Yongfu,Li Ruiqian,Yi Xiaoyan. Effects of light quality on growth rates and pigments of Chaetoceros gracilis (Bacillariophyceae)[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020,38(3):795-801.
APA Li Yongfu,Li Ruiqian,&Yi Xiaoyan.(2020).Effects of light quality on growth rates and pigments of Chaetoceros gracilis (Bacillariophyceae).JOURNAL OF OCEANOLOGY AND LIMNOLOGY,38(3),795-801.
MLA Li Yongfu,et al."Effects of light quality on growth rates and pigments of Chaetoceros gracilis (Bacillariophyceae)".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 38.3(2020):795-801.
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