1. Plant Synthetic Biology Center, Haixia Institute of Science and Technology, and College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002 China; 2. The Waksman Institute of Microbiology, Rutgers, the State University of New Jersey, Piscataway, NJ 08854, USA; 3. Department of Plant Biology, Rutgers, the State University of New Jersey, New Brunswick, NJ 08891, USA *Correspondences: Yi Zhang (yi.zhang@waksman.rutgers.edu); Juan Dong (dong@waksman.rutgers.edu). Both Yi Zhang and Juan Dong are fully responsible for the distribution of all materials associated with this article.