1. State Key Laboratory of Crop Stress Biology for Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
2. Department of Plant and Soil Sciences, University of Kentucky, Lexington, Kentucky 40546, United States
3. Kentucky Water Resources Research Institute, University of Kentucky, Lexington, Kentucky 40506, United States