Publication: Influence of cadmium-resistant Streptomycetes on plant growth and cadmium uptake by Chlorophytum comosum (Thunb.) Jacques
Issued Date
2021-08-01
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ISSN
16147499
09441344
09441344
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2-s2.0-85102894435
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Mahidol University
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SCOPUS
Bibliographic Citation
Environmental Science and Pollution Research. Vol.28, No.29 (2021), 39398-39408
Suggested Citation
Chotinan Junpradit, Patsaraporn Thooppeng, Kannika Duangmal, Benjaphorn Prapagdee Influence of cadmium-resistant Streptomycetes on plant growth and cadmium uptake by Chlorophytum comosum (Thunb.) Jacques. Environmental Science and Pollution Research. Vol.28, No.29 (2021), 39398-39408. doi:10.1007/s11356-021-13527-z Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/77029
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Title
Influence of cadmium-resistant Streptomycetes on plant growth and cadmium uptake by Chlorophytum comosum (Thunb.) Jacques
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Abstract
This work aims to explore the role of cadmium-resistant actinomycetes on promoting plant growth and cadmium uptake in Chlorophytum comosum (Thunb.) Jacques, a spider plant. Actinomycetes isolated from the plant roots in peat swamp forests were screened for their cadmium resistance and the production of indole-3-acetic acid (IAA) and siderophores. The results found that K5PN1 and 11-10SHTh produced high levels of IAA and siderophores, respectively. K5PN1 and 11-10SHTh were identified to be Streptomyces rapamycinicus and Streptomyces cyaneus, respectively. Both strains were able to remove cadmium from aqueous solution and survive under cadmium stress in contaminated soil. The results of pot experiments found that the selected Streptomyces inoculation increased the root and shoot biomass and cadmium accumulation in the root and shoot of C. comosum planted in a cadmium-contaminated soil. The highest cadmium accumulation and translocation ability of cadmium from the root to shoot was found in C. comosum with S. rapamycinicus inoculation. In addition, plant with S. cyaneus inoculation had the highest phytoextraction coefficient and bioaccumulation factor. Our findings concluded that S. rapamycinicus and S. cyaneus stimulated the growth and cadmium uptake in C. comosum, suggesting a combined approach using the selected Streptomyces and C. comosum for phytoremediation of cadmium-polluted soil. Graphical abstract: [Figure not available: see fulltext.]