Biotechnology Letters

, Volume 40, Issue 5, pp 855–864 | Cite as

Expression of the 5-enoylpyruvylshikimate-3-phosphate synthase domain from the Acremonium sp. aroM complex enhances resistance to glyphosate

Original Research Paper
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Abstract

Objective

To discover and isolate a glyphosate-resistant gene from a microorganism through gene mining.

Results

The full aroM gene from Acremonium sp. (named aroMA.sp.) was cloned using rapid amplification of cDNA ends. The transcriptional expression level of each domain increased significantly after glyphosate treatment in the aroMA.sp. complex and reached its maximum at 48 h. The aroA domain of the aroMA.sp. (named aroA A.sp.) was expressed in Escherichia coli BL21 (DE3) and the product was purified through Ni-NTA affinity chromatography. Furthermore, 45 KDa was indicated by SDS-PAGE and its enzyme activity was optimal at 30 °C and PH 7.0. The Ki/Km value of aroAA.sp. was 0.106, and the E. coli BL21 harboring aroAA.sp. could grow in the M9 minimal medium with 100 mM glyphosate.

Conclusion

The aroAA.sp. from the aroMA.sp. complex had high enzyme activity and glyphosate resistance. Therefore, this research offers a new strategy for improving glyphosate resistance using the aroA domain of the aroM complex in the fungi.

Keywords

Acremonium sp. aroA aroM Glyphosate 

Notes

Acknowledgements

This research is financially supported by the National Transgenic Major Program (2016ZX08004001-04).

Supporting information

on the primers used in the experiments is provided in Supplementary Table S1.

Compliance with ethical standards

Conflict of interest

The author declares no financial or commercial conflict of interest.

Supplementary material

10529_2018_2529_MOESM1_ESM.docx (919 kb)
Supplementary material 1 (DOCX 920 kb)

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Plant Science Department, School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghaiPeople’s Republic of China

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