EC Microbiology

Research Article Volume 20 Issue 9 - 2023

Geographical Distribution of Culturable Magnetotactic Bacteria and their Magnetosome Morphology

Tao Liu, Ziyu Hao, Guojing Zhang, Lingzhu Li and Lei Yan*

Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China

*Corresponding Author: Lei Yan, Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China.
Received: March 02, 2024; Published: May 15, 2024




Magnetotactic bacteria (MTB) play critical roles in environmental iron-cycling and magnetism which are tightly related with their geographical distribution. The geographical distribution pattern of culturable MTB can mirror their ecological function under various niches. In the present study, we analyzed 51 16S rDNA sequences of culturable MTB from the public database and literatures, and accordingly constructed phylogenetic trees to assess the difference among culturable MTB from freshwater and saltwater. Results show that the available culturable MTB ate affiliated with Alpha-, Gamma-, and Deltaproteobacteria classes of the Proteobacteria phylum. Among them, the bullet-shaped magnetosome producing culturable MTB mainly belong to Deltaproteobacteria. Almost all culturable MTB distribute in the northern hemisphere except IT-1 and the number of culturable MTB decreased with the increase of latitude. Most culturable MTB (about 73%) distribute in freshwater, while others (about 27%) thrive in marine or saltwater environment. The culturable gammaproteobacteria MTB were found to only thrive in saltwater environment. and Fe3S4 magnetosome-producing MTB only occurred in the marine environment. These findings reflected that the ecological environment was closely related to the types of MTB.

 Keywords: Magnetotactic Bacteria; Pure Culture; Geographic Distribution; Phylogeny; Magnetosome

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Lei Yan., et al. “Geographical Distribution of Culturable Magnetotactic Bacteria and their Magnetosome Morphology”. EC Microbiology  20.9 (2024): 01-12.

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