Improvement of stress tolerance and riboflavin production of Bacillus subtilis by introduction of heat shock proteins from thermophilic bacillus strains. - Wang, Junyang; Wang, Weishan; Wang, Huizhuan; Yuan, Fang; Xu, Zhen; Yang, Keqian; Li, Zilong; Chen, Yihua; Fan, Keqiang (Applied Microbiology & Biotechnology, 2019)