Agrobacterium bioassay strain for ultrasensitive detection of N-acylhomoserine lactone-type quorum-sensing molecules: detection of autoinducers in Mesorhizobium huakuii.

@article{Zhu2003AgrobacteriumBS,
  title={Agrobacterium bioassay strain for ultrasensitive detection of N-acylhomoserine lactone-type quorum-sensing molecules: detection of autoinducers in Mesorhizobium huakuii.},
  author={Jun Zhu and Yunrong Chai and Zengtao Zhong and Shunpeng Li and Stephen C Winans},
  journal={Applied and environmental microbiology},
  year={2003},
  volume={69 11},
  pages={6949-53}
}
An ultrasensitive bioassay system for the detection of N-acylhomoserine lactones (AHLs) was constructed in Agrobacterium tumefaciens by using the T7 expression system to overproduce the AHL receptor TraR. This strain detected many diverse AHLs, some at extremely low concentrations. We used this strain to detect for the first time AHLs made by Mesorhizobium huakuii, which symbiotically fixes nitrogen in association with the legume Astragalus sinicus, a source of green manure throughout eastern… CONTINUE READING
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