1. State Key Laboratory of Agricultural Microbiology Huazhong Agricultural University Wuhan China
2. Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment Huazhong Agricultural University Wuhan China
3. Department of Microbiology and Plant Biology, School of Civil Engineering and Environmental Sciences, Institute for Environmental Genomics University of Oklahoma Norman OK 73019 USA
4. Hengyang Red Soil Experimental Station Chinese Academy of Agricultural Sciences Hengyang 421001 China