Soil chromium bioremediation: Synergic activity of actinobacteria and plants

Polti, Marta Alejandra; Atjián, Mariana C.; Amoroso, Maria Julia del R.; Abate, Carlos Mauricio

doi:10.1016/j.ibiod.2011.09.008

Cited by 70 publications

(31 citation statements)

References 41 publications

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“…One of the major emerging problems of the tanning industry is the disposal of chromium-contaminated sludge that is produced as byproduct of the wastewater treatment [5]. The world production of chromium is in the order of 10 7 tons per year; 60% -70% is used in alloys, including stainless steel, and 15% is used in chemical industrial processes, mainly leather tanning, pigments and electroplating [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…The reduction of highly toxic Cr (VI) to the less toxic Cr (III) is likely to be useful for the remediation of contaminated waters and soils [9]. It was also indicated that Cr (III) can be transformed to Cr (VI) mainly inside root cells, and/or in the aerial part of the plant, however, roots accumulate 10 -100 times more chromium than shoots and other plants tissues [7,8]. As a result of this, there is observed an inhibition of growth, respiration activities and photosynthesis [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…It was also indicated that Cr (III) can be transformed to Cr (VI) mainly inside root cells, and/or in the aerial part of the plant, however, roots accumulate 10 -100 times more chromium than shoots and other plants tissues [7,8]. As a result of this, there is observed an inhibition of growth, respiration activities and photosynthesis [8,9]. Also progressive stages of chlorosis and necrosis are the symptoms of chromium toxicity in plants [7].…”

Section: Introductionmentioning

confidence: 99%

“…Also progressive stages of chlorosis and necrosis are the symptoms of chromium toxicity in plants [7]. There are however still conflicting results regarding, which form of chromium is taken up and accumulated by plants [7,8,15]. Some authors considered that both translocation as accumulation of chromium inside the plant depends on the oxidation state of the supply and/or on the plant species [8,15,16].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The influence of old leather tannery district on chromium contamination of soils, water and plants

Wolińska¹,

Stępniewska²,

Wlosek³

2013

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The influence of old leather tannery district on chromium contamination of soils, water and plants

Wolińska¹,

Stępniewska²,

Wlosek³

2013

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show abstract

“…In particular, several studies have indicated their potential for the remediation of heavy metals [55,56,57,58,59]. Specifically, Verma & Singh [60], found that Brevibacterium casie was capable of reducing 78% Cr 6+ and 82% polychlorinated biphenyls in an LB broth medium, indicating that these strain may have the potential to be used in bioremed iation.…”

Section: S Rrna Gene Sequencing and Phylogenetic Analysismentioning

confidence: 99%

Bioremediation of Landfill Leachate Using Isolated Bacterial Strains

Morris¹,

Garcia-Cabellos²,

Enright³

et al. 2018

IJEBB

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Landfilling is one of the most common and widely accepted practices for the disposal of waste throughout the world. Leachate, a major drawback of landfilling, continues to be produced at vast rates and current treatment options are costly and often inadequate. The management of leachate is of economic and environmental importance, due to its potential to cause contamination to ground and surface water. This research focuses on treating leachate in a cost-effective manner through bioremediation. Microorganisms were isolated from landfill leachate (LFL) and screened to determine their ability to remediate a wide range of compounds found in leachate, such as ammonia, phosphate and nitrate. Selected isolates were identified as belonging to the phylum"s Firmicutes, Actinobacteria, and Proteobacteria, isolates were inoculated into soil contained in a fixed bed column system. The column system was optimised and used for the treatment of LFL over a 10-hour period. High percentage removal rates were achieved for ammonia (>90%) and removal nitrate and phosphate (>60%). Although EPA discharge limits were not achieved, bioremediation using selected microbial strains represents a cost effective treatment option when compared to conventional methods. Research is now required to further optimise this system to achieve discharge limits for all compounds tested.

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Cr(VI) and lindane removal by Streptomyces M7 is improved by maize root exudates

et al. 2017

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Environmental mixed pollution by both organic and inorganic compounds are detected worldwide. Phytoremediation techniques have been proposed as ecofriendly methods for cleaning up polluted sites. Several studies have demonstrated enhanced dissipation of contaminants at the root-soil interface through an increase in microbial activity caused by the release of plant root exudates (REs). The aim of this study was to evaluate the effectiveness for Cr(VI) and lindane removal by Streptomyces M7 cultured in a co-contaminated system in presence of maize REs. Our results showed when REs were added to the contaminated minimal medium (MM) as the only carbon source, microbial removal of Cr(VI) and lindane increased significantly in comparison to contaminant removal obtained in MM with glucose 1 g L . The maximum removal of 91% of lindane and 49.5% of Cr(VI) were obtained in the co-contaminated system. Moreover, Streptomyces M7 showed plant growth promoting traits which could improve plant performance in contaminated soils. The results presented in this study provide evidence that maize REs improved growth of Streptomyces M7 when REs were used as a carbon source in comparison to glucose. Consequently, lindane and Cr(VI) removal was considerably enhanced making evident the phytoremediation potential of the actinobacteria-plant partnership.

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Soil chromium bioremediation: Synergic activity of actinobacteria and plants

Cited by 70 publications

References 41 publications

The influence of old leather tannery district on chromium contamination of soils, water and plants

The influence of old leather tannery district on chromium contamination of soils, water and plants

Bioremediation of Landfill Leachate Using Isolated Bacterial Strains

Cr(VI) and lindane removal by Streptomyces M7 is improved by maize root exudates

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