Effect of pH on Cr(III) accumulation, biomass production, and phenolic profile in 2 <i>Salvinia</i> species

Ponce, Silvana Chocobar; Prado, Carolina; Pagano, Eduardo; Prado, Fernando Eduardo; Rosa, Mariana

doi:10.1002/etc.4296

Cited by 5 publications

(4 citation statements)

References 62 publications

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“…The metal accumulation values in the tissue of S. auriculata measured in this study are lower than those reported by Espinoza-Quiñones et al, who exposed S. auriculata to concentrations of 5 mg/L Cr(III) in a hydroponic solution, obtaining an accumulation of 10.12 and 2.08 mg/g in root and leaf tissue, respectively, after 7 days [32]. Conversely, Ponce et al measured Cr(III) concentrations in Salvinia rotundifolia in different structures and found that 0.8 mg/g accumulated in fronds and 1.3 mg/g in laciniae, at pH 6 and a concentration of 20 mg/L Cr(III), conditions similar to those of our study [33]. In E. crassipes, BAF values for leaves were 37 ± 12 and 21 ± 6, while in roots, they were 1.2264 ± 35 and 326 ± 93 for concentrations of 2 and 20 mg/L of Cr(III), respectively.…”

Section: Removal and Accumulation Of Chromium (Iii) In Nutrient Solut...supporting

confidence: 89%

“…E. crassipes can be used to treat urban leachates [ 28 ], in cyanide removal [ 29 ], and the treatment and removal of chromium in tannery effluents [ 30 ]. S. auriculata can remove heavy metals in a solution since this macrophyte has the ability to accumulate mercury in roots and tissues [ 31 ] and remove Cr(III) and Cr(VI) in hydroponic solutions [ 32 , 33 ]. Other species of the Salvinia genus have been extensively studied in metal phytoremediation.…”

Section: Introductionmentioning

confidence: 99%

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Removal of Chromium (III) and Reduction in Toxicity in a Primary Tannery Effluent Using Two Floating Macrophytes

López Arias,

Franco,

Medina

et al. 2024

Toxics

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Trivalent chromium (Cr(III)) is a contaminant with toxic activity. Its presence in waters and soils is usually related to industrial activities such as tanneries. The aim of this study was to compare the removal of Cr(III) in hydroponic solutions and tannery effluents using two floating macrophytes: Salvinia auriculata and Eichhornia crassipes. First, to determine the chromium removal capacity in solution and the bioaccumulation factor (BAF) in tissues of each plant, experiments were set up with contaminated solutions with Cr(III) concentrations of 2, 5, 10, 20, and 40 mg/L. Subsequently, both plant species were exposed to a primary tannery effluent contaminated with 12 mg/L of Cr(III) in order to study the removal capacity of organic and inorganic matter, as well as the acute toxicity in the water flea (Daphnia magna) and genotoxicity in zebrafish (Danio rerio). Tests carried out on nutrient solutions revealed that both plants have a high capacity for removing Cr(III) in solution. The BAF in tissues was higher in E. crassipes compared to S. auriculata. In the experiments with a tannery effluent, both species presented low nutrient and organic matter removal efficiency, but they showed good Cr(III) removal capacity, with average reduction values of 57% for S. auriculata and 54% for E. crassipes after 72 h of exposure. E. crassipes contributed most to the reduction in acute toxicity in D. magna, while S. auriculata did not show a similar effect. However, both plant species managed to reduce the genotoxicity marker in D. rerio when compared with the initial effluent and the control.

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Section: Removal and Accumulation Of Chromium (Iii) In Nutrient Solut...supporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Removal of Chromium (III) and Reduction in Toxicity in a Primary Tannery Effluent Using Two Floating Macrophytes

López Arias,

Franco,

Medina

et al. 2024

Toxics

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“…They revealed that accumulation of phenolic compounds in leaves and roots are mainly due to oxidative polymerization of enzymes involved in phenylpropanoid pathway that further alters the permeability of cell wall [81]. The most possible mechanism involved behind the microbe-mediated stimulation of phenolic compounds in the present study is that microbes actively participate in shikimate pathway of phenol biosynthesis during stressed conditions [82]. The microbes regulate phenol metabolism by generation of shikimic acid, a vital metabolite in phenol biosynthesis that in turn further generates and accumulates chorismic acid, the end product of shikimate pathway [76] Moreover, an upregulation in the expression levels of genes encoding different metabolites have also been measured through qRT-PCR in our previous studies [31].…”

Section: Discussionmentioning

confidence: 84%

Microbial Fortification Improved Photosynthetic Efficiency and Secondary Metabolism in Lycopersicon esculentum Plants Under Cd Stress

et al. 2019

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Environmental stress including heavy metal pollution is increasing at high speed and is polluting the cultivable land. Consequently, it results in affecting human population through entering into food chain. The current study aims that Cd stress (0.4 mM) led to toxicity and deleterious effects on 45-day-old Lycopersicon esculentum plants. The use of rhizobacterial strains underlines the main hypothesis of the present research that have been exploited in order to alleviate the Cd induced stress in plants and promoting their growth sidewise. The morphological parameters, plant pigments, and gaseous exchange parameters were estimated and found to be reduced in plants due to Cd toxicity. Along with this, the levels of phenolic compounds and osmoprotectants were stimulated in plants raised in Cd spiked soils. In addition, free amino acid content was reduced in plants under Cd treatment. It was revealed that these bacterial strains Pseudomonas aeruginosa (M1) and Burkholderia gladioli (M2) when inoculated to tomato plants improved the morphological characteristics and enhanced photosynthetic attributes. Moreover, the level of phenolic compounds and osmoprotectants were further enhanced by both the inoculating agents independently. However, in situ localization studies of phenol accumulation in root sections was found to be enhanced in Cd treated plants as revealed through higher intensity of yellowish-brown colour. The supplementation of bacterial strains further accumulated the phenols in Cd stressed root sections as evidenced through increased colour intensity. Therefore, the present study suggested that bacterial strains mitigates Cd stress from tomato plants through improving morphological, physiological and metabolite profiles. Consequently, the present research advocates the best utilization of rhizobacteria as stress alleviators for sustainable agriculture.

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“…The Cr(VI) reduction ability of fecal bacteria was determined as our previous study 6 with minor modifications that using YCFA medium 72 . After that, the supernatant was oxidized from Cr(III) to Cr(VI) using KMnO 4 73 to ensure the correctness of bacterial reduction.…”

Section: Methodsmentioning

confidence: 99%

Tibet plateau probiotic mitigates chromate toxicity in mice by alleviating oxidative stress in gut microbiota

Feng

Han

et al. 2020

Commun Biol

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Heavy metal contamination in food endangers human health. Probiotics can protect animals and human against heavy metals, but the detoxification mechanism has not been fully clarified. Here, mice were supplemented with Pediococcus acidilactici strain BT36 isolated from Tibetan plateau yogurt, with strong antioxidant activity but no chromate reduction ability for 20 days to ensure gut colonization. Strain BT36 decreased chromate accumulation, reduced oxidative stress, and attenuated histological damage in the liver of mice. 16S rRNA and metatranscriptome sequencing analysis of fecal microbiota showed that BT36 reversed Cr (VI)-induced changes in gut microbial composition and metabolic activity. Specifically, BT36 recovered the expressions of 788 genes, including 34 inherent Cr remediation-relevant genes. Functional analysis of 10 unannotated genes regulated by BT36 suggested the existence of a new Cr(VI)-reduction gene in the gut microbiota. Thus, BT36 can modulate the gut microbiota in response to Cr(VI) induced oxidative stress and protect against Cr toxicity.

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Effect of pH on Cr(III) accumulation, biomass production, and phenolic profile in 2 Salvinia species

Cited by 5 publications

References 62 publications

Removal of Chromium (III) and Reduction in Toxicity in a Primary Tannery Effluent Using Two Floating Macrophytes

Removal of Chromium (III) and Reduction in Toxicity in a Primary Tannery Effluent Using Two Floating Macrophytes

Microbial Fortification Improved Photosynthetic Efficiency and Secondary Metabolism in Lycopersicon esculentum Plants Under Cd Stress

Tibet plateau probiotic mitigates chromate toxicity in mice by alleviating oxidative stress in gut microbiota

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