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Proteomics analysis for enhanced lipid accumulation in oleaginous Chlorella vulgaris under a heterotrophic-Na+ induction two-step regime
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Proteomics analysis for enhanced lipid accumulation in oleaginous Chlorella vulgaris under a heterotrophic-Na+ induction two-step regime
×÷Õß:Li, YQ (Li, Yuqin)[ 1 ] ; Mu, JX (Mu, Jinxiu)[ 1 ] ; Chen, D (Chen, Di)[ 1 ] ; Xu, H (Xu, Hua)[ 1 ] ; Han, FX (Han, Fangxin)[ 1 ] ; Feng, B (Feng, Bo)[ 1 ] ; Zeng, HY (Zeng, Hongyan)[ 1 ]


BIOTECHNOLOGY LETTERS


¾í: 37
ÆÚ: 5
Ò³: 1021-1030
DOI: 10.1007/s10529-014-1758-0

³ö°æÄê: MAY 2015

²é¿´ÆÚ¿¯ÐÅÏ¢

BIOTECHNOLOGY LETTERS  

³ö°æÉÌ SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS

ISSN: 0141-5492
eISSN: 1573-6776

Ñо¿ÁìÓò Biotechnology & Applied Microbiology



ÕªÒª
A heterotrophic-Na+ induction (HNI) two-step regime was developed to enhance lipid accumulation in oleaginous Chlorella vulgaris. C. vulgaris was cultivated heterotrophically to a biomass of 7.8 g l(-1) in 120 h. The cells were re-suspended in fresh media supplemented with 0.5 M NaCl followed by 12 h growth to accumulate lipid to 53.4 % (w/w). The lipid productivity (625 mg l(-1) day(-1)) achieved with HNI was better than that using heterotrophy alone (405 mg l(-1) day(-1)). To promote possible applications of HNI strategy in other microalgal species, the lipid triggers and potential molecular pathways associated with lipid biosynthesis were investigated. Malic enzyme and acyl-CoA-binding protein were key metabolic checkpoints found to modulate lipid biosynthesis in cells. These results provide the foundation to develop high-lipid engineering miroalgae for industrialization of biodiesel.

¹Ø¼ü´Ê
×÷Õ߹ؼü´Ê:Bioinformatics; Biomass; Chlorella vulgaris; Heterotrophic-Na+ induction; Lipid; Proteomics

KeyWords Plus:NACL STRESS; SALT; TRIACYLGLYCEROLS; PROTEINS; NITROGEN; ROOTS

×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Li, YQ (ͨѶ×÷Õß) Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Peoples R China.
  ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ
    Xiangtan University  


µØÖ·:  [ 1 ] Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Peoples R China
  ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ
    Xiangtan University  


µç×ÓÓʼþµØÖ·:yuqinli2004@126.com

»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ
National Natural Science Foundation of China  21306161  
China Postdoctoral Science Foundation  2012M521531
2014T70775  
Hunan Provincial Natural Science Foundation of China  13JJ3062  
²é¿´»ù½ð×ÊÖúÐÅÏ¢¹Ø±Õ»ù½ð×ÊÖúÐÅÏ¢   

This work was supported by National Natural Science Foundation of China (21306161), China Postdoctoral Science Foundation Funded Project (2012M521531 and 2014T70775), and Hunan Provincial Natural Science Foundation of China (13JJ3062).

³ö°æÉÌ
SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS

Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Biotechnology & Applied Microbiology

Web of Science Àà±ð:Biotechnology & Applied Microbiology

ÎÄÏ×ÐÅÏ¢
ÎÄÏ×ÀàÐÍ:Article

ÓïÖÖ:English

Èë²ØºÅ: WOS:000352641700008

PubMed ID: 25548117

ISSN: 0141-5492

eISSN: 1573-6776

ÆäËûÐÅÏ¢
IDS ºÅ: CF6BP

Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 20

Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0

JCR® Àà±ð JCR ·ÖÇø
BIOTECHNOLOGY & APPLIED MICROBIOLOGY  Q3


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