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Effect of iron on the growth of Phaeodactylum tricornutum via photosynthesis
Zhao, Peipei1,2,3; Gu, Wenhui1,2; Huang, Aiyou1,2; Wu, Songcui1,2; Liu, Changheng3; Huan, Li1,2; Gao, Shan1,2; Xie, Xiujun1,2; Wang, Guangce1,2
2018-02-01
发表期刊JOURNAL OF PHYCOLOGY
卷号54期号:1页码:34-43
文章类型Article
摘要Iron is a limiting factor that controls the phytoplankton biomass in the modern ocean, and iron fertilization of the ocean could lead to blooms dominated by diatoms. Thus, iron plays an important role in controlling the distribution of diatoms. In this study, we measured the growth rate and photosynthetic activity of the model diatom Phaeodactylum tricornutum cultured under different iron concentrations and found that it grew more rapidly and had a much higher photosynthetic efficiency under higher iron concentrations. In order to explore the unique mechanism of the response of diatoms to iron, a proteomic analysis was carried out, and the results indicated that iron promotes the Calvin cycle of P.tricornutum. Diatoms can tolerate the pressure of iron limitation by replacing iron-rich proteins with flavodoxin, and so on. Moreover, we found that the photosystem I (PSI) activity of iron-limited algae that were treated by N',N',N',N'-tetramethyl-p-phenylenediamine (TMPD) was increased significantly. As TMPD plays the role of a cytochrome b(6)/f complex that transfers electrons from photosystem II to PSI, the cytochrome b(6)/f complex is the key to photosynthesis regulation. Iron could influence the growth of P.tricornutum by regulating its biosynthesis. All of the results suggest that iron might affect the growth of diatoms through the Calvin cycle and the cytochrome b(6)/f complex.
关键词Bloom Calvin Cycle Diatom Iron P. Tricornutum
DOI10.1111/jpy.12607
收录类别SCI
语种英语
WOS记录号WOS:000424094000005
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/154365
专题实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Key Lab Expt Biol, Inst Oceanol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266200, Peoples R China
3.Shandong Acad Sci, Biol Inst, Jinan 250014, Shandong, Peoples R China
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Zhao, Peipei,Gu, Wenhui,Huang, Aiyou,et al. Effect of iron on the growth of Phaeodactylum tricornutum via photosynthesis[J]. JOURNAL OF PHYCOLOGY,2018,54(1):34-43.
APA Zhao, Peipei.,Gu, Wenhui.,Huang, Aiyou.,Wu, Songcui.,Liu, Changheng.,...&Wang, Guangce.(2018).Effect of iron on the growth of Phaeodactylum tricornutum via photosynthesis.JOURNAL OF PHYCOLOGY,54(1),34-43.
MLA Zhao, Peipei,et al."Effect of iron on the growth of Phaeodactylum tricornutum via photosynthesis".JOURNAL OF PHYCOLOGY 54.1(2018):34-43.
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