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Licensed Unlicensed Requires Authentication Published by De Gruyter April 18, 2017

PCR denaturing gradient gel electrophoresis as a useful method to identify of intestinal bacteria flora in Haemaphysalis flava ticks

Tian-Yin Cheng and Guo-Hua Liu
From the journal Acta Parasitologica

Abstract

Ticks are blood-sucking ectoparasites of great medical and veterinary significance that can transmit bacteria, protozoa, fungi and viruses, causing a variety of human and animal diseases worldwide. In the present study, the intestinal bacterial flora associated with Haemaphysalis flava ticks in different developmental stages were analyzed using polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE). Eleven distinct DGGE bands were found using PCR-DGGE method. Sequences analyses indicated that they belonged to Bacillus cereus, Candidatus rickettsia, Erwinia sp., Klebsiella pneumoniae, Pectobacterium carotovorum, Pseudomonas aeruginosa, Rickettsia peacockii, Rickettsia helvetica, Rickettsia slovaca, Staphylococcus simulans and Uncultured bacterium clone. Our find that the K. pneumoniae and P. aeruginosa isolates were presented in all H. flava ticks in different developmental stages. The present results indicated that zoonotic pathogens are present in H. flava ticks in Henan province, China. To our knowledge, this is the first report on intestinal bacterial flora associated with H. flava ticks in China.

  1. Competing interests

    The authors declare that they have no competing interests.

  2. Ethic statement

    All animals were handled in strict accordance with the Good Animal Practice requirements of the Animal Ethics Procedures and Guidelines of the People’s Republic of China.

Acknowledgments

This research was financially supported by grant from the National Natural Science Foundation of China (No. 31372431).

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Received: 2016-6-14
Revised: 2016-12-21
Accepted: 2016-12-30
Published Online: 2017-4-18
Published in Print: 2017-6-1

© 2017 W. Stefański Institute of Parasitology, PAS

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