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Effect of Exogenous Ethylene (ET) on Regulating Carotenogenesis Expression and Astaxanthin Accumulation in Haematococcus pluvialis

文献类型： 外文期刊

作者： Gao, Zhengquan 1 ; Meng, Chunxiao 1 ; Gao, Hongzheng 1 ; Ye, Naihao 2 ; Zhang, Xiaowen 2 ; Su, Yuanfeng 1 ; Zhao, Yure 1 ;

作者机构： 1.Shandong Univ Technol, Sch Life Sci, Zibo 255049, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fishery Res Inst, Qingdao 266071, Peoples R China

关键词： Haematococcus pluvialis;Astaxanthin;Ethylene (ET);Regulation;Carotenoid genes;Real-time fluorescence quantitative PCR (qRT-PCR)

期刊名称：JOURNAL OF PURE AND APPLIED MICROBIOLOGY （ 影响因子：0.073； ）

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收录情况： SCI

摘要： The freshwater eukaryotic unicellular alga Haematococcus pluvialis is one of the best sources to produce natural astaxanthin in nature. However, the regulatory role of carotenogenesis leading to astaxanthin formation is not well understood. In this study, the effects of ET on transcriptional expressions of eight carotenoid genes in H. pluvialis were measured using qRT-PCR. Results showed that eight carotenogenic genes were up-regulated by ET with different expression profiles. Astaxanthin accumulation was promoted efficiently by ET, which might result from the up-regulating of ipi-1, ipi-2, pds, lyc, bkt, crtR-b and crtO at the transcriptional level, and by psy at both transcriptional and post-transcriptional levels. Moreover, fourteen proteins were expressed differentially in ET treatments compared to controls. Furthermore, algal cell division accompanying accompanied by astaxanthin accumulation for the first time during the whole course of ethylene induction. The knowledge in the present paper might help to optimize the physiological conditions needed to produce a high yield of astaxanthin with ET.

  • 相关文献

[1]Analysis of mRNA expression profiles of carotenogenesis and astaxanthin production of Haematococcus pluvialis under exogenous 2, 4-epibrassinolide (EBR). Gao, Zhengquan,Meng, Chunxiao,Gao, Hongzheng,Su, Yuanfeng,Wang, Yuanyuan,Zhao, Yuren,Zhang, Xiaowen,Xu, Dong,Ye, Naihao. 2013

[2]Carotenoid genes transcriptional regulation for astaxanthin accumulation in fresh water unicellular alga Haematococcus pluvialis by gibberellin A3 (GA(3)). Gao, Zhengquan,Meng, Chunxiao,Gao, Hongzheng,Zhou, Shitan,Liu, Banghui,Su, Yuanfeng,Li, Yan,Zhang, Xiaowen,Xu, Dong,Ye, Naihao. 2013

[3]The induction of ferrous sulfate or sodium acetate on mRNA expression of carotenoid genes in Haematococcus pluvialis. Gao Zhengquan,Meng Chunxiao,Gao Hongzheng,Su Yuanfeng,Zhang Xiaowen,Ye Naihao. 2013

[4]Isolation and expression analyses of methyl-d-erythritol 4-phosphate (MEP) pathway genes from Haematococcus pluvialis. Liang, Chengwei,Zhang, Wei,Su, Zhongliang,Yu, Jiansheng,Zhang, Xiaowen,Fan, Xiao,Xu, Dong,Ye, Naihao,Yang, Qingli.

[5]Correlation between lipid and carotenoid synthesis and photosynthetic capacity in Haematococcus pluvialis grown under high light and nitrogen deprivation stress. Liang, C.,Zhai, Y.,Zhang, W.,Yu, J.,Xu, D.,Ye, N.,Zhang, X.,Wang, Y.. 2015

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