Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf)
Phytoremediation technology is viewed as a potential solution for addressing soil uranium contamination. Sudan grass (<i>Sorghum sudanense</i> (Piper) Stapf.), noted for its robust root structure and resilience to heavy metals, has garnered significant attention. This paper investigates...
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2025-01-01
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| author | Longyuan Wu Lijuan Zhang Ning Wang Wei Huang Yanzhi Wang Meng Sun Guofeng Zheng Wei Wang Chong Shi |
| author_facet | Longyuan Wu Lijuan Zhang Ning Wang Wei Huang Yanzhi Wang Meng Sun Guofeng Zheng Wei Wang Chong Shi |
| author_sort | Longyuan Wu |
| collection | DOAJ |
| description | Phytoremediation technology is viewed as a potential solution for addressing soil uranium contamination. Sudan grass (<i>Sorghum sudanense</i> (Piper) Stapf.), noted for its robust root structure and resilience to heavy metals, has garnered significant attention. This paper investigates a strain of uranium-tolerant bacterium, B6, obtained from the inter-root environment of native plants in soil contaminated with uranium tailings. The bacterium was identified as Bacillus cereus. Genomic analyses and assessment of uranium tolerance-promoting properties showed that strain B6 not only exhibited high uranium tolerance, but also possessed beneficial properties such as phosphorus solubilization and iron-producing carriers. In this study, we used strain B6 as an inoculant in combination with Sudan grass for germination and potting experiments. The findings demonstrated that Bacillus cereus B6 could substantially mitigate the adverse effects of uranium stress on Sudan grass, boost the plant’s antioxidant response, significantly increase the root length and dry biomass of Sudan grass, and facilitate the accumulation of uranium in the roots, as well as its translocation to the aboveground portions. The study showed that PGPB strain B6 can significantly enhance the effect of plant accumulation of uranium and increase the potential of Sudan grass to become a uranium-rich plant, which provides an important scientific basis and application prospect for the use of microbial-assisted Sudan grass remediation technology to treat uranium-contaminated soil. |
| format | Article |
| id | doaj-art-cc8ea787ece64573882e78eab76f952e |
| institution | Kabale University |
| issn | 2079-7737 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-cc8ea787ece64573882e78eab76f952e2025-01-24T13:23:28ZengMDPI AGBiology2079-77372025-01-011415810.3390/biology14010058Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf)Longyuan Wu0Lijuan Zhang1Ning Wang2Wei Huang3Yanzhi Wang4Meng Sun5Guofeng Zheng6Wei Wang7Chong Shi8College of Resources and Environment, Xinjiang Agricultural University, Urumqi 830052, ChinaInstitute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences/Xinjiang Laboratory Special Environmental Microbiology, Urumqi 830091, ChinaInstitute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences/Xinjiang Laboratory Special Environmental Microbiology, Urumqi 830091, ChinaInstitute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences/Xinjiang Laboratory Special Environmental Microbiology, Urumqi 830091, ChinaCollege of Resources and Environment, Xinjiang Agricultural University, Urumqi 830052, ChinaCollege of Resources and Environment, Xinjiang Agricultural University, Urumqi 830052, ChinaNuclear and Radiation Safety Center, Beijing 100082, ChinaInstitute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences/Xinjiang Laboratory Special Environmental Microbiology, Urumqi 830091, ChinaCollege of Resources and Environment, Xinjiang Agricultural University, Urumqi 830052, ChinaPhytoremediation technology is viewed as a potential solution for addressing soil uranium contamination. Sudan grass (<i>Sorghum sudanense</i> (Piper) Stapf.), noted for its robust root structure and resilience to heavy metals, has garnered significant attention. This paper investigates a strain of uranium-tolerant bacterium, B6, obtained from the inter-root environment of native plants in soil contaminated with uranium tailings. The bacterium was identified as Bacillus cereus. Genomic analyses and assessment of uranium tolerance-promoting properties showed that strain B6 not only exhibited high uranium tolerance, but also possessed beneficial properties such as phosphorus solubilization and iron-producing carriers. In this study, we used strain B6 as an inoculant in combination with Sudan grass for germination and potting experiments. The findings demonstrated that Bacillus cereus B6 could substantially mitigate the adverse effects of uranium stress on Sudan grass, boost the plant’s antioxidant response, significantly increase the root length and dry biomass of Sudan grass, and facilitate the accumulation of uranium in the roots, as well as its translocation to the aboveground portions. The study showed that PGPB strain B6 can significantly enhance the effect of plant accumulation of uranium and increase the potential of Sudan grass to become a uranium-rich plant, which provides an important scientific basis and application prospect for the use of microbial-assisted Sudan grass remediation technology to treat uranium-contaminated soil.https://www.mdpi.com/2079-7737/14/1/58<i>Bacillus cereus</i>plant growth-promoting activityuranium stress |
| spellingShingle | Longyuan Wu Lijuan Zhang Ning Wang Wei Huang Yanzhi Wang Meng Sun Guofeng Zheng Wei Wang Chong Shi Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf) Biology <i>Bacillus cereus</i> plant growth-promoting activity uranium stress |
| title | Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf) |
| title_full | Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf) |
| title_fullStr | Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf) |
| title_full_unstemmed | Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf) |
| title_short | Bioprospecting of a Native Plant Growth-Promoting Bacterium <i>Bacillus cereus</i> B6 for Enhancing Uranium Accumulation by Sudan Grass (<i>Sorghum sudanense</i> (Piper) Stapf) |
| title_sort | bioprospecting of a native plant growth promoting bacterium i bacillus cereus i b6 for enhancing uranium accumulation by sudan grass i sorghum sudanense i piper stapf |
| topic | <i>Bacillus cereus</i> plant growth-promoting activity uranium stress |
| url | https://www.mdpi.com/2079-7737/14/1/58 |
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