Chinese Bulletin of Botany ›› 2023, Vol. 58 ›› Issue (3): 475-485.DOI: 10.11983/CBB22227

• SPECIAL TOPICS • Previous Articles     Next Articles

Halo-tag Labeling Technology and It’s Application in Plant Living Cell Imaging

Hongping Qian1,2,3,4, Pengyun Luo1,2,3,4, Shuai Liu5, Changwen Xu1,2,3,4, Jinhuan Yin1,2,3,4, Yaning Cui1,2,3,4(), Jinxing Lin1,2,3,4()   

  1. 1Forest Tree Breeding and Ecological Restoration, National Engineering Research Center, Beijing 100083, China
    2Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Beijing 100083, China
    3The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing 100083, China
    4College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
    5State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China
  • Received:2022-09-29 Accepted:2023-01-28 Online:2023-05-01 Published:2023-05-17
  • Contact: *E-mail: cuiyaning@bjfu.edu.cn; linjx@bjfu.edu.cn

Abstract: The cell is the basic structural and functional unit of living organisms, its complex internal organizational structure, interaction and process dynamics determine the life form and life process of the entire organism. The study of cell structure and function in the living state is of great significance for exploring and grasping the essence of life. With the continuous advances in science and technology, a series of new live cell labeling technologies have been innovated. In recent years, the Halo-tag labeling technology has gradually been developed into a widely used new molecular labeling technology, playing an increasingly important role in the field of living cell imaging analysis and tracking research. It has been gradually applied in plant cell imaging. In this review, we focus on the definition, classification and development process of Halo-tag technology, and introduce the reaction mechanism of the dehydrohalogenation of Halo-tag labeling technology and the types of fluorescent ligands in detail. Finally, we introduce the latest progress of this technology in the application of living cell imaging in plants is emphatically expounded from three aspects: observing the fine localization of molecules, tracking the real-time motion of molecules and detecting the interactions between molecules. Taken together, this study provides theoretical foundation and technical support for the potential application of the subsequent Halo-tag labeling technology in plants.

Key words: new labeling technology, Halo-tag label, Halo-tag ligand, living cell imaging