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Screening endophyte with capability to improve phytoremediation efficiency from hyperaccumulators: A novel and
Chenjing Liu1, Hai Lin1, Bing Li1
1School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China; Beijing Key Laboratory on Resource-Oriented Treatment of Industrial Pollutants, Beijing, 100083, PR China.
Chemosphere
|August 24, 2021
Summary
A new microfluidic method efficiently screens endophytes for phytoremediation. Bacillus paramycoides (PE1) significantly enhanced plant growth and heavy metal removal in contaminated soil.
Area of Science:
- Environmental Microbiology
- Plant Science
- Biotechnology
Background:
- Traditional endophyte screening for phytoremediation is time-consuming and inefficient.
- Identifying optimal strains and their application efficiency remains challenging.
- Endophyte-assisted phytoremediation offers a sustainable solution for heavy metal-contaminated soil.
Purpose of the Study:
- To develop a novel, high-throughput microfluidic method for screening endophytes.
- To identify effective endophytes for enhancing phytoremediation of hyperaccumulators.
- To validate the efficiency of the microfluidic screening approach.
Main Methods:
- Utilized microfluidic technology for real-time plant root phenotyping.
- Simultaneously incubated multiple endophyte-plant systems.
- Evaluated root growth rate and heavy metal (HM) concentration in effluent.
Main Results:
- Screened Bacillus paramycoides (PE1) as a highly effective endophyte within two weeks.
- PE1 increased root growth rate by 54.31% and reduced Cd concentration by 46.33%.
- Pot experiments confirmed PE1 increased P. acinosa biomass by 42.50% and Cd removal by 55.49%.
Conclusions:
- The microfluidic method provides an efficient and rapid approach for endophyte screening.
- PE1 demonstrates significant potential for improving phytoremediation of Cd-contaminated soil.
- This technology advances understanding and application of endophyte-assisted phytoremediation.
