Metallothioneins from a Hyperaccumulating Plant<i>Prosopis juliflora</i>Show Difference in Heavy Metal Accumulation in Transgenic Tobacco

Balasundaram, Usha; Venkataraman, Gayatri; George, Suja; Parida, Ajay

doi:10.5958/2230-732x.2014.00240.x

Cited by 12 publications

(2 citation statements)

References 7 publications

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“…In a similar experiment, the same results were obtained on the expression of CsMT4 screened from cucumber fruit in E. coli cells under Cd and Zn stress [244]. Overexpression of PjMT1 and PjMT2 genes transferred to tobacco plants from Prosopis juliflora caused significantly increased accumulation of Cd in transgenic tobacco plants compared to wild-type plants [245]. Overall, these outcomes suggest that different types of MTs are implicated in the tolerance and accumulation of high amounts of Cd in plant cells.…”

Section: Phytochelatins and Metallothionein For Cadmium Phytoremediationsupporting

confidence: 69%

Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

Raza

Habib

Najafi-Kakavand

et al. 2020

Biology

185

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Cadmium (Cd) is one of the most toxic metals in the environment, and has noxious effects on plant growth and production. Cd-accumulating plants showed reduced growth and productivity. Therefore, remediation of this non-essential and toxic pollutant is a prerequisite. Plant-based phytoremediation methodology is considered as one a secure, environmentally friendly, and cost-effective approach for toxic metal remediation. Phytoremediating plants transport and accumulate Cd inside their roots, shoots, leaves, and vacuoles. Phytoremediation of Cd-contaminated sites through hyperaccumulator plants proves a ground-breaking and profitable choice to combat the contaminants. Moreover, the efficiency of Cd phytoremediation and Cd bioavailability can be improved by using plant growth-promoting bacteria (PGPB). Emerging modern molecular technologies have augmented our insight into the metabolic processes involved in Cd tolerance in regular cultivated crops and hyperaccumulator plants. Plants’ development via genetic engineering tools, like enhanced metal uptake, metal transport, Cd accumulation, and the overall Cd tolerance, unlocks new directions for phytoremediation. In this review, we outline the physiological, biochemical, and molecular mechanisms involved in Cd phytoremediation. Further, a focus on the potential of omics and genetic engineering strategies has been documented for the efficient remediation of a Cd-contaminated environment.

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Section: Phytochelatins and Metallothionein For Cadmium Phytoremediationsupporting

confidence: 69%

Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

Raza

Habib

Najafi-Kakavand

et al. 2020

Biology

185

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“…Higher tolerance to Cd was also engineered in tobacco by the expression of PjMT1 and PjMT2 from Prosopis juliflora (Balasundaram et al 2014 ; Krystofova et al 2012 ). Furthermore, overexpression of these genes, as well as CUP1 from Saccharomyces cerevisiae , resulted in increased Cd accumulation in the shoots (Macek et al 2002 ; Thomas et al 2003 ; Pavlíková et al 2004 a, b ; Krystofova et al 2012 ; Balasundaram et al 2014 ). On the other hand, overexpressing SvMThis from Silene vulgaris in tobacco increased Cd accumulation primarily in the roots and, to a lesser extent, in leaves.…”

Section: Tobacco In Phytoremediationmentioning

confidence: 99%

Tobacco as an efficient metal accumulator

Kozak

Antosiewicz

2022

Biometals

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Tobacco (Nicotiana tabacum L.) is an important industrial crop plant. However, it efficiently accumulates metals, primarily cadmium (Cd) and also zinc (Zn), in its leaves. Therefore, it could be a source of cadmium intake by smokers. On the other hand, as a high leaf metal accumulator, it is widely used for phytoremediation of metal-contaminated soil. Both issues provide an important rationale for investigating the processes regulating metal homeostasis in tobacco. This work summarizes the results of research to date on the understanding of the molecular mechanisms determining the effective uptake of Zn and Cd, their translocation into shoots and accumulation in leaves. It also discusses the current state of research to improve the phytoremediation properties of tobacco through genetic modification and to limit leaf Cd content for the tobacco industry. Graphical Abstract

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Phytoremediation of Heavy Metals Contaminated Soils Through Transgenic Plants

Srivastava

2016

Phytoremediation

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Metallothioneins from a Hyperaccumulating PlantProsopis julifloraShow Difference in Heavy Metal Accumulation in Transgenic Tobacco

Cited by 12 publications

References 7 publications

Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

Phytoremediation of Cadmium: Physiological, Biochemical, and Molecular Mechanisms

Tobacco as an efficient metal accumulator

Phytoremediation of Heavy Metals Contaminated Soils Through Transgenic Plants

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