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Simultaneous bioprecipitation of cadmium to cadmium sulfide nanoparticles and nitrogen fixation by Rhodopseudomonas palustris TN110.
Chemosphere 2019; 223:455-464C

Abstract

This study investigated the abilities of a purple non-sulfur bacterium, Rhodopseudomonas palustris TN110 to bioremediate cadmium through the biosynthesis of CdS nanoparticles and to fix nitrogen simultaneously. Under microaerobic-light conditions, R. palustris TN110 synthesized CdS nanoparticles. The produced CdS nanoparticles had a spherical shape and an average size of 4.85 nm. The Fourier transform infrared spectrum of the nanoparticles reveals the carbonyl groups, bending vibrations of the amide I and II bands of proteins, and CN stretching vibrations of aromatic and aliphatic amines. These bands and groups suggest protein capping/binding on the surface of the nanoparticles. R. palustris TN110 converted 25.61% of 0.2 mM CdCl2 to CdS nanoparticles under optimal conditions (pH 7.5, 30 °C and 3000 lux). The half maximal inhibitory concentration (IC50) value of the produced CdS nanoparticles was 1.76 mM. The produced CdS nanoparticles at IC50 up-regulated two genes associated with nitrogen fixation: Mo-Fe nitrogenase gene (nifH) and V-Fe nitrogenase gene (vnfG) at 2.83 and 2.27 fold changes, respectively. On the contrary, the produced CdS nanoparticles slightly down-regulated Fe-Fe nitrogenase gene (anfG). The amounts of ammonia released by the strain support the gene expression results. R. palustris TN110 has great potential to serve concurrently as a cadmium bioremediation agent and a nitrogen fixer. The strain could be beneficial to paddy fields that are contaminated with Cd through run off from mining and chemical fertilizer applications.

Authors+Show Affiliations

Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, 90112, Thailand. Electronic address: jakkapan.js5@gmail.com.Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, 90112, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok, 10330, Thailand. Electronic address: duangporn.k@psu.ac.th.Center of Excellence on Hazardous Substance Management (HSM), Bangkok, 10330, Thailand; Department of Environmental Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand. Electronic address: sumana.r@kku.ac.th.Department of Microbiological Sciences, North Dakota State University, Fargo, ND 58108, USA. Electronic address: john.mcevoy@ndsu.edu.Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154, USA. Electronic address: eakalak.khan@unlv.edu.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30784752

Citation

Sakpirom, Jakkapan, et al. "Simultaneous Bioprecipitation of Cadmium to Cadmium Sulfide Nanoparticles and Nitrogen Fixation By Rhodopseudomonas Palustris TN110." Chemosphere, vol. 223, 2019, pp. 455-464.
Sakpirom J, Kantachote D, Siripattanakul-Ratpukdi S, et al. Simultaneous bioprecipitation of cadmium to cadmium sulfide nanoparticles and nitrogen fixation by Rhodopseudomonas palustris TN110. Chemosphere. 2019;223:455-464.
Sakpirom, J., Kantachote, D., Siripattanakul-Ratpukdi, S., McEvoy, J., & Khan, E. (2019). Simultaneous bioprecipitation of cadmium to cadmium sulfide nanoparticles and nitrogen fixation by Rhodopseudomonas palustris TN110. Chemosphere, 223, pp. 455-464. doi:10.1016/j.chemosphere.2019.02.051.
Sakpirom J, et al. Simultaneous Bioprecipitation of Cadmium to Cadmium Sulfide Nanoparticles and Nitrogen Fixation By Rhodopseudomonas Palustris TN110. Chemosphere. 2019;223:455-464. PubMed PMID: 30784752.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simultaneous bioprecipitation of cadmium to cadmium sulfide nanoparticles and nitrogen fixation by Rhodopseudomonas palustris TN110. AU - Sakpirom,Jakkapan, AU - Kantachote,Duangporn, AU - Siripattanakul-Ratpukdi,Sumana, AU - McEvoy,John, AU - Khan,Eakalak, Y1 - 2019/02/13/ PY - 2018/12/01/received PY - 2019/02/05/revised PY - 2019/02/09/accepted PY - 2019/2/21/pubmed PY - 2019/5/9/medline PY - 2019/2/21/entrez KW - Bioprecipitation KW - Cadmium sulfide nanoparticle KW - Cysteine desulfhydrase KW - Nitrogenase KW - Purple non-sulfur bacteria SP - 455 EP - 464 JF - Chemosphere JO - Chemosphere VL - 223 N2 - This study investigated the abilities of a purple non-sulfur bacterium, Rhodopseudomonas palustris TN110 to bioremediate cadmium through the biosynthesis of CdS nanoparticles and to fix nitrogen simultaneously. Under microaerobic-light conditions, R. palustris TN110 synthesized CdS nanoparticles. The produced CdS nanoparticles had a spherical shape and an average size of 4.85 nm. The Fourier transform infrared spectrum of the nanoparticles reveals the carbonyl groups, bending vibrations of the amide I and II bands of proteins, and CN stretching vibrations of aromatic and aliphatic amines. These bands and groups suggest protein capping/binding on the surface of the nanoparticles. R. palustris TN110 converted 25.61% of 0.2 mM CdCl2 to CdS nanoparticles under optimal conditions (pH 7.5, 30 °C and 3000 lux). The half maximal inhibitory concentration (IC50) value of the produced CdS nanoparticles was 1.76 mM. The produced CdS nanoparticles at IC50 up-regulated two genes associated with nitrogen fixation: Mo-Fe nitrogenase gene (nifH) and V-Fe nitrogenase gene (vnfG) at 2.83 and 2.27 fold changes, respectively. On the contrary, the produced CdS nanoparticles slightly down-regulated Fe-Fe nitrogenase gene (anfG). The amounts of ammonia released by the strain support the gene expression results. R. palustris TN110 has great potential to serve concurrently as a cadmium bioremediation agent and a nitrogen fixer. The strain could be beneficial to paddy fields that are contaminated with Cd through run off from mining and chemical fertilizer applications. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/30784752/Simultaneous_bioprecipitation_of_cadmium_to_cadmium_sulfide_nanoparticles_and_nitrogen_fixation_by_Rhodopseudomonas_palustris_TN110 L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)30268-1 DB - PRIME DP - Unbound Medicine ER -