1. State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China.
2. School of life science, Shanxi Normal University, Linfen 041000, China.
3. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China.
4. Shaanxi Tobacco Research Institute, Xi'an 710061, China.
In this study, a total of 409 symptomatic tobacco leaf samples were collected from 12 provinces in China during 2010 and 2011. As shown in Figure 1, those provinces are Anhui, Fujian, Guangxi, Guizhou, Henan, Heilongjiang, Hubei, Hunan, Liaoning, Shandong, Shaanxi, and Yunnan.
Received: 29 Dec 2016 Accepted: 29 Dec 2016
Published online: 29 Dec 2016