Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil
Innovative integrated approaches of nanoparticles (NP) and plant growth-promoting bacteria (PGPB) can accelerate plant growth and remediation of cadmium (Cd) contaminated soil. The effectiveness of the combination and interactions amongst Cd-resistant PGPB, ryegrass (Lolium perenne), graphene nanopl...
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Elsevier
2025-03-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821124001121 |
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| author | Asifa Farooqi Ejaz ul Haq Anders Johansen Lea Ellegaard-Jensen Mazhar Iqbal Sohail Yousaf Maximilian Lackner |
| author_facet | Asifa Farooqi Ejaz ul Haq Anders Johansen Lea Ellegaard-Jensen Mazhar Iqbal Sohail Yousaf Maximilian Lackner |
| author_sort | Asifa Farooqi |
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| description | Innovative integrated approaches of nanoparticles (NP) and plant growth-promoting bacteria (PGPB) can accelerate plant growth and remediation of cadmium (Cd) contaminated soil. The effectiveness of the combination and interactions amongst Cd-resistant PGPB, ryegrass (Lolium perenne), graphene nanoplatelets (GNPs), and graphitic carbon nitride (g-C3N4) nanomaterials have not yet been elucidated. Cd-spiked soil was supplemented with GNPs, g-C3N4, and inoculated with bacterial strains (Serratia bozhouensis and Serratia marcescens). The PGPB and GNPs combination produced the highest biomass, enhancing the accumulation of Cd in ryegrass. The highest Cd uptake (92 %) by ryegrass was observed in Serratia bozhouensis and GNPs treatments. The reasons for increased plant growth and Cd-phytoremediation by the PGPB-GNPs combination are explained. GNPs application promoted PGPB survival in the rhizosphere. Inoculant strains showed a high relative abundance of >82 % in the inoculated treatments. The exchangeable Cd fraction significantly increased in PGPB-GNPs treatments. The highest exchangeable Cd (80 %) was noted with Serratia bozhouensis and GNPs. PGPB also increased the dehydrogenase, catalase, phosphatase, and urease enzyme activity in soil. The PGPB-GNPs combination also reduced the Cd-induced stress injury to ryegrass through increased production of antioxidants. The present work supports our understanding of the synergistic effects of nanomaterials, bacteria, and plants, thus boosting their role in restoring heavy metal-contaminated soils. |
| format | Article |
| id | doaj-art-8ed6b035e3c148db871ffd7afdaadcea |
| institution | Kabale University |
| issn | 2666-8211 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj-art-8ed6b035e3c148db871ffd7afdaadcea2025-02-03T04:17:02ZengElsevierChemical Engineering Journal Advances2666-82112025-03-0121100695Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soilAsifa Farooqi0Ejaz ul Haq1Anders Johansen2Lea Ellegaard-Jensen3Mazhar Iqbal4Sohail Yousaf5Maximilian Lackner6Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, PakistanDepartment of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, PakistanDepartment of Environmental Science, Aarhus University, Roskilde, DenmarkDepartment of Environmental Science, Aarhus University, Roskilde, DenmarkDepartment of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, PakistanDepartment of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan; Corresponding author at: Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan.Department of Industrial Engineering, University of Applied Sciences Technikum Wien, Hoechstaedtplatz 6, 1200 Vienna, AustriaInnovative integrated approaches of nanoparticles (NP) and plant growth-promoting bacteria (PGPB) can accelerate plant growth and remediation of cadmium (Cd) contaminated soil. The effectiveness of the combination and interactions amongst Cd-resistant PGPB, ryegrass (Lolium perenne), graphene nanoplatelets (GNPs), and graphitic carbon nitride (g-C3N4) nanomaterials have not yet been elucidated. Cd-spiked soil was supplemented with GNPs, g-C3N4, and inoculated with bacterial strains (Serratia bozhouensis and Serratia marcescens). The PGPB and GNPs combination produced the highest biomass, enhancing the accumulation of Cd in ryegrass. The highest Cd uptake (92 %) by ryegrass was observed in Serratia bozhouensis and GNPs treatments. The reasons for increased plant growth and Cd-phytoremediation by the PGPB-GNPs combination are explained. GNPs application promoted PGPB survival in the rhizosphere. Inoculant strains showed a high relative abundance of >82 % in the inoculated treatments. The exchangeable Cd fraction significantly increased in PGPB-GNPs treatments. The highest exchangeable Cd (80 %) was noted with Serratia bozhouensis and GNPs. PGPB also increased the dehydrogenase, catalase, phosphatase, and urease enzyme activity in soil. The PGPB-GNPs combination also reduced the Cd-induced stress injury to ryegrass through increased production of antioxidants. The present work supports our understanding of the synergistic effects of nanomaterials, bacteria, and plants, thus boosting their role in restoring heavy metal-contaminated soils.http://www.sciencedirect.com/science/article/pii/S2666821124001121Plant growth-promoting bacteriaCadmium contaminationBacterial colonizationGraphene nanoplateletsRyegrassNano-phytoremediation |
| spellingShingle | Asifa Farooqi Ejaz ul Haq Anders Johansen Lea Ellegaard-Jensen Mazhar Iqbal Sohail Yousaf Maximilian Lackner Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil Chemical Engineering Journal Advances Plant growth-promoting bacteria Cadmium contamination Bacterial colonization Graphene nanoplatelets Ryegrass Nano-phytoremediation |
| title | Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil |
| title_full | Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil |
| title_fullStr | Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil |
| title_full_unstemmed | Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil |
| title_short | Plant growth-promoting bacteria and nanomaterials synergism to enhance Lolium perenne growth and phytoremediation in cadmium-contaminated soil |
| title_sort | plant growth promoting bacteria and nanomaterials synergism to enhance lolium perenne growth and phytoremediation in cadmium contaminated soil |
| topic | Plant growth-promoting bacteria Cadmium contamination Bacterial colonization Graphene nanoplatelets Ryegrass Nano-phytoremediation |
| url | http://www.sciencedirect.com/science/article/pii/S2666821124001121 |
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