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Imaging aquatic animal cells and associated pathogens by atomic force microscopy in air

  • Chen Li
  • Yan Liang
  • Menglin Xu
  • Hailiang Wang
  • Chongming Wang
  • Jie HuangEmail author
Original Research Paper
  • 19 Downloads

Abstract

Atomic force microscopy (AFM) is a sophisticated imaging tool with nanoscale resolution that is widely used in structural biology, cell biology, and material science, among other fields. However, to date it has rarely been applied to the study of aquatic animals, especially on one of the main cultured species, shrimp. One reason for this is that no shrimp cell line established until now, primary cell is fragile and difficult to be studied under AFM. In this study, we used AFM to image three different types of biological material from shrimp (Litopenaeus vannamei) in air, including hemocytes and two associated pathogens. Without obvious deformations when the cells were imaged in air and in the case for the haemocytes and the cells were fixed as well. The result suggests hydrophobic glass coverslips are a suitable substrate for adhesion of these samples. The method described here can be applied to the preparation of other fragile biological samples from aquatic animals for high-resolution analyses of host–pathogen interactions and other basic physiological processes.

Keywords

Atomic force microscopy Imaging Shrimp Cells Viruses Bacteria 

Notes

Acknowledgements

This study was supported by the National Natural Science Foundation of China (Grant No. 31302233); Special Scientific Research Funds for Central Non-Profit Institutes, Yellow Sea Fisheries Research Institute (Grant No. 20603022018014); the projects under Central Public-interest Scientific Institution Basal Research Fund, CAFS (Grant No: 2017HY-ZD1002) and China Agriculture Research System (Grant No. CARS-47).

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Key Laboratory of Maricultural Organism Disease Control, Ministry of Agriculture, Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdaoChina
  2. 2.Function Laboratory for Marine Fisheries Science and Food Production ProcessesQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
  3. 3.Qingdao Key Laboratory of Mariculture Epidemiology and BiosecurityQingdaoChina

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