Funding for this research was provided by:
National Natural Science Foundation of China (No. 21706125, No. 21706124)
Natural Science Foundation of Jiangsu Province (BK20170993)
Received: 30 January 2019
Accepted: 15 May 2019
First Online: 21 May 2019
Ethics approval and consent to participate
: Not applicable.
: All authors consent to the publication of the manuscript in Biotechnology for Biofuels.
: The authors declare that they have no competing interests.