Funding for this research was provided by:
Shandong Province Science and Technology Development Project (2015GSF121016)
the State Key Laboratory of Microbial Technology Foundation
the National Natural Science Foundation (61672329, 61602283)
Shandong Natural Science Foundation (ZR2016FB10)
Article History
Received: 25 August 2017
Accepted: 8 January 2018
First Online: 18 January 2018
Compliance with ethical standards
:
: All the authors declare that there is no conflict of interest.
: The authors declare that there are no studies conducted with human participants or animals.