Phytoextraction of cr (VI)-contaminated soil by phyllostachys pubescens: A case study
Open accessAbstract
This work presents the results of experimental tests to evaluate the effects of prolonged contamination by Cr on Moso Bamboo (MB) (Phyllostachys pubescens) and the adaptability of the MB to the Mediterranean climate. A preliminary test on the MB was developed in the laboratory, simulating irrigation under Mediterranean conditions (600 mm per year) and tropical conditions (1800 mm per year), to evaluate the rate of growth and the MB’s capability for Cr phytoextraction from contaminated soil. The tolerance of MB to Cr was also performed showing a good response of the plant to 100 mg Cr/L solution, utilized for irrigation of the pots. The results show that the rate of MB’s removal of Cr from soil ranged from 49.2% to 61.7% as a function of the soil degree of contamination, which varied from approx. 100 mg/kg to 300 mg/kg. The distribution of Cr in the various sections of the bamboo revealed that the greater percentage was present in rhizomes: 42%, equal to 114 mg Cr for 600 mm per year, and 50%, equal to 412 mg Cr for 1800 mm per year. A noteworthy diffusion of the metal towards the outermost parts of the plant was shown. The values of Cr retained in the stems and leaves of MB tissues were quite high and varied from 1100 mg/kg to 1700 mg/kg dry weight.
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Although mercury is mostly stored in roots, it can accumulate in tiny amounts in shoots by translocating soluble forms or directly absorbing the vapor form.
“Although it is mostly stored in roots, it can accumulate in tiny amounts in shoots by translocating soluble forms or directly absorbing the vapor form (Ranieri et al., 2021).”
From Plant hyperaccumulators: a state-of-the-art review on mechanism of heavy metal transport and sequestration (2025) · cites this paper as Ranieri et al., 2021
The Results and Discussion section (3.4, page unavailable) reports that chromium accumulated mainly in bamboo roots and rhizomes, with less in aerial tissues. Searches for mercury, soluble mercury forms, and vapor absorption found no passage addressing the claimed mercury pathways; chromium findings do not establish them. (LLM, conf=0.78)
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References 63 · Cited by 16
Research works printed but not linked: 2
- [7]Cary E.E. Chromium in air, soils, and natural waters Biological and Environmental Aspects of Chromium Langard S. Elsevier Biomedical New York, NY, USA 1982 49 63
- [44]Bosire G.O. Rehabilitation and Phytoremediation of Heavy Metal Polluted Riverine Wetlands Using Bamboo for Phytoextraction in Kibera Ph.D. Thesis Kenyatta University Nairobi, Kenya 2014 Available online: http://ir-library.ku.ac.ke/handle/123456789/9256 (accessed on 1 November 2021)
- Authors
- Ranieri, E., D’Onghia, G., Ranieri, F., Petrella, A., Spagnolo, V., & Ranieri, A. C.
- Affiliations
- University of Bari Aldo Moro (IT)
- Polytechnic University of Bari (IT)
- UniNettuno University (IT)
- Corresponding author
- Ranieri, Ezio
- Venue
- Toxics
- Publisher
- MDPI AG
- Published
- 2021-11-18
- Volume
- 9
- Issue
- 11
- Pages
- 312
- ISSN
- 2305-6304 (ISSN-L)
- PMC
- PMC8618276
- OpenAlex
- W3213178891
- Cited by
- 16
- References
- 63
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 4
- FWCI
- 1.19
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Toxics (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion, other-oa)
- Topics
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Chromium effects and bioremediation
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
- Keywords
- phytoextraction, hexavalent chromium, Cr(VI)-contaminated soil, Phyllostachys edulis, heavy metal accumulation in plants, rhizome, irrigation conditions, Mediterranean climate, plant metal tolerance
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