Early warning of MIB episode based on gene abundance and expression in drinking water reservoirs

Tengxin Cao^1,6,7, Jiao Fang¹, Zeyu Jia^3,1, Yiping Zhu⁴, Ming Su^1,2,7,*, Qi Zhang⁵, Yichao Song⁴, Jianwei Yu^1,2,7, Min Yang^2,1,7,*

1. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085.

2. National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085.

3. Yangtze Eco-Environment Engineering Research Center, China Three Gorges Corporation, Beijing, 100038.

4. Shanghai Chengtou Raw Water Co. Ltd., Beiai Rd. 1540, Shanghai, 200125.

5. Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang, Wuhan, 430072.

6. Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049.

7. University of Chinese Academy of Sciences, Beijing, 100049.

* Corresponding Author: Min Yang (yangmin@rcees.ac.cn)

Highlights

• Higher light intensity promoted the mic gene expression level for Pseudanabaena
• Expression of MIB synthesis gene (mic) is light dependent in field water
• Mic abundance/expression can be used for the early warning of MIB episode