Tingsong Hu, Ying Zheng, Yan Zhang, Gangshan Li, Wei Qiu, Jing Yu, Qinghua Cui, Yiyin Wang, Chaoxiong Zhang, Xiaofang Zhou, Ziliang Feng, Weiguo Zhou, Quanshui Fan* and Fuqiang Zhang*
* Corresponding authors: Quanshui Fan fqs168@126.com - Fuqiang Zhang zfq1968@yahoo.com.cn
BMC Microbiology 2012, 12:305 doi:10.1186/1471-2180-12-305