1. Citrus Research Institute; Southwest University, Chongqing; 400712, China
2. Department of Microbiology and Cell Science, Citrus Research and Education Center, Institute of Food and Agricultural Sciences (IFAS); University of Florida; Lake Alfred FL 33850 USA
3. Department of Plant Pathology; University of Florida; Gainesville FL 32611 USA
4. China-USA Citrus Huanglongbing Joint Laboratory (A joint laboratory of The University of Florida's Institute of Food and Agricultural Sciences and Gannan Normal University); National Navel Orange Engineering Research Center, Gannan Normal University; Ganzhou Jiangxi China