Study of the Toxicity and Translocation of Chromium (VI) in Vicia faba Plant

In soil, chromium can be found in two main valence forms: hexavalent Cr (VI) and trivalent Cr (III). In terms of toxicity, the most toxic form to plants is Cr (VI). In the present study, we investigated the impact of Cr (VI) (0, 25, 50, 75 and 100 ppm) on growth, physiological parameters and the tra...

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Bibliographic Details
Published in:	Bulletin of environmental contamination and toxicology Vol. 112; no. 3; p. 40
Main Authors:	Bouhadi, Mohammed, Lahmidi, Ayoub, Am, Amira, Elhajjouji, Houda, Elkouali, M’hammed, Talbi, Mohammed, Fougrach, Hassan
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-03-2024 Springer Nature B.V
Subjects:	Aquatic Pollution Bioaccumulation Broad beans Chlorophyll Chromium Chromium - toxicity Earth and Environmental Science Ecotoxicology Electrolyte leakage Environment Environmental Chemistry Environmental Health Parameters Physiology Pollution Roots Soil Soil Science & Conservation Soils Solutes Toxicity Translocation Vicia faba Waste Water Technology Water Management Water Pollution Control Faba bean Plant physiology Soil pollution Toxicity Chromium VI
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Summary:	In soil, chromium can be found in two main valence forms: hexavalent Cr (VI) and trivalent Cr (III). In terms of toxicity, the most toxic form to plants is Cr (VI). In the present study, we investigated the impact of Cr (VI) (0, 25, 50, 75 and 100 ppm) on growth, physiological parameters and the translocation kinetics of Cr (VI) in the faba bean plant ( Vicia faba L.). The results showed that Cr (VI) negatively affects growth parameters (− 15% to − 72%), tolerance index (− 34.05% to − 64.7%), and reduce the total chlorophyll content (until 40%) compared to control plants without Cr (VI). However, the increase of Cr (VI) concentration in the soil, stimulated the synthesis of sugars (max 6,97 mg/g FM), proteins (max 62.89 µg/mg FM) and proline (max 98.57 µg/mg FM) and increased the electrolyte leakage (+ 2.5% to + 9%) compared to control plants. Cr (VI) concentrations in shoots and roots increased significantly for all Cr (VI) doses applied. The translocation factor results showed that the majority of the Cr (VI) absorbed by the plant is stored in the roots, with a very low bioaccumulation factor, which does not exceed 0.4. The findings show that Cr (VI) negatively affects the morpho-physiological parameters of Vicia faba , the bioaccumulation of organic solutes and the low bioaccumulation factor of Cr (VI) can be considered as a strategy of tolerance to Cr(V).
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0007-4861 1432-0800
DOI:	10.1007/s00128-024-03864-3