Promotion of microalgal growth by co-culturing with Cellvibrio pealriver using xylan as feedstock.
In this work, a Cellvibrio pealriver-microalga co-cultivation mode was used to promote the growths of four microalgae by using xylan as feedstock. After 12days of cultivation, the biomass concentrations of Chlorella sacchrarophila, Chlorella pyrenoidosa and Chlamydomonas reinhardtii in co-cultivation were equal to those in mixotrophic growth on glucose, and the Dunaliella was about 1.6-fold higher than that on glucose. The comparative transcriptomes analysis demonstrated that the xylose and xylan hydrolysates were catalyzed to some active substrates by C. pealriver via some functional enzymes; these active substrates are possibly responsible for the promotion of microalgal growth. This C. pealriver-microalga co-cultivation mode is a potential method to produce low-cost microalgal biodiesel by using hemicellulose as feedstock.
Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, PR China.
Zhangzhang
Z
Xie
Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, PR China.
Weitie
W
Lin
Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, PR China. Electronic address: ljfjf2002@scut.edu.cn.
Jianfei
J
Luo
D056804:Biofuels; D018533:Biomass; D020633:Cellvibrio / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D016825:Chlamydomonas reinhardtii / Q000254:growth & development; D002708:Chlorella / Q000254:growth & development; D018920:Coculture Techniques / Q000379:methods*; D020869:Gene Expression Profiling; D005947:Glucose / Q000378:metabolism; D058086:Microalgae / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D014990:Xylans / Q000378:metabolism*
D056804:Biofuels; D014990:Xylans; D005947:Glucose
Co-cultivation; Comparative transcriptome; Microalgal growth; Xylan; Xylose