Comparative assessment for hyperaccumulatory and phytoremediation capability of three wild weeds

Girdhar, Madhuri; Sharma, Neeta; Rehman, Hasibur; Kumar, Anupam; Mohan, Anand

doi:10.1007/s13205-014-0194-0

Cited by 57 publications

(29 citation statements)

References 78 publications

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“…Although there have not been any major reports on heavy metal uptake by medicinal cannabis, there have been a number of studies on the uptake of heavy metals by industrial hemp ( Cannabis sativa L .). This indicates that the cannabis plant is very efficient in the uptake of heavy metals from contaminated sites and can be considered as a potential candidate for phytoremediation of contaminated soils .…”

Section: Resultsmentioning

confidence: 99%

Cannabis contaminants: sources, distribution, human toxicity and pharmacologic effects

Dryburgh

Bolan

Grof

et al. 2018

Brit J Clinical Pharma

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There has been a resurgence in interest and use of the cannabis plant for medical purposes. However, an in-depth understanding of plant contaminants and toxin effects on stability of plant compounds and human bioavailability is needed. This systematic review aims to assess current understanding of the contaminants of cannabis and their effect on human health, leading to the identification of knowledge gaps for future investigation. A systematic search of seven indexed biological and biomedical databases and the Cochrane library was undertaken from inception up to December 2017. A qualitative synthesis of filtered results was undertaken after independent assessment for eligibility by two reviewers. The common cannabis contaminants include microbes, heavy metals and pesticides. Their direct human toxicity is poorly quantified but include infection, carcinogenicity, reproductive and developmental impacts. Cannabis dosing formulations and administration routes affect the transformation and bioavailability of contaminants. There may be important pharmacokinetic interactions between the alkaloid active ingredients of cannabis (i.e. phytocannabinoids) and contaminants but these are not yet identified nor quantified. There is significant paucity in the literature describing the prevalence and human impact of cannabis contaminants. Advances in the availability of cannabis globally warrant further research in this area, particularly when being used for patients.

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Section: Resultsmentioning

confidence: 99%

Cannabis contaminants: sources, distribution, human toxicity and pharmacologic effects

Dryburgh

Bolan

Grof

et al. 2018

Brit J Clinical Pharma

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“…Many phytoremediation studies have shown the potential of weed species to remove heavy metals from contaminated environment. Weeds such as Poa annua (for Cu, As), Tephrosia purpurea (for Mn), Cannabis sativa (for Cr), Solanum nigrum (for Mn), Dissotis rotundifolia and Kyllinga erecta (for Pb), Calotropis procera (for Zn, Mn, Cd, Cu), Withania somnifera (for Cu, Mn, As), Eclipta alba (for Cu, Mn, As), Heliotropium ellipticum (for Cu, Mn, As), and Cannabis sativa, Solanum nigrum, and Rorippa globosa (for Cd) also showed good phytoremedial potential suggesting the use of these weedy plants for remediation of heavy metal-polluted soils (Varun et al 2012;Girdhar et al 2014;Lum et al 2014).…”

Section: Uptake In a Indicummentioning

confidence: 99%

“…Although weeds are considered undesirable or troublesome plants, many weeds and their relatives, occurring on mountains and other disturbed habitats, may be useful for phytoremediation (Lum et al 2014). Many studies have shown that weed species had high accumulating abilities of heavy metals and so were used to remove heavy metals from polluted environment (Lum et al 2014;Girdhar et al 2014). Weed species such as black nightshade (Solanum nigrum), hemp (Cannabis sativa), and yellowcress (Rorippa globosa) have high endurance and accumulating ability to Cd (Ji et al 2011;Shi et al 2012;Wei and Twardowska 2013).…”

Section: Introductionmentioning

confidence: 99%

Abutilon indicum L.: a prospective weed for phytoremediation

Varun¹,

Jaggi

D’Souza³

et al. 2015

Environ Monit Assess

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This study was aimed to determine the uptake and accumulation potential of a weed (Abutilon indicum L.) for phytoremediation of soil contaminated with cadmium. Plants were grown in soil spiked with 0, 2.5, 5, 10, 15, 20, 25 mg/kg Cd, individually. Plants sample (root and shoot) were analyzed for Cd content at 30, 60, and 90 days and accumulation trends were characterized. A steady increase in Cd accumulation with increasing metal concentration and exposure period was observed for all treatments. Accumulation of Cd in roots was found to be 4.3-7.7 times higher than that of shoots. Statistically significant difference (P ≤ 0.001) in mean metal content in root and shoot at successive days of study was recorded. Effect of Cd on growth and physiology was also evaluated. At higher Cd levels, root and shoot length and biomass of test plant were reduced significantly. Although, growth was delayed initially, it was comparable to control at the end of the study. Chlorophyll and proline content declined with the increase in Cd concentration at 30 and 60 days after treatment. However, at 90 days, values were more or less comparable to the control values showing the adaptability of test plant in Cd contamination. Considering the accumulation ability, BCF >1 (bioconcentration factor) and TF <1 (translocation factor) established A. indicum as a potential candidate plant for phytoremediation. Hence, phytoremediation employing indigenous weed species like A. indicum can be an ecologically viable option for sustainable and cost-effective management of heavy metal-contaminated soils.

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“…Thlaspi caerulescens [33], kenaf [34], sunflower [35], Cannabis sativa [36,37], Tagetes minuta L. [38], cabbage [39], Brassica juncea [40], Acacia victoriae [41], and buckwheat are superior hyperaccumulators compared to other weeds and crops, and the following plants are especially remarkable. A. victoriae was found to be capable of accumulating 3, 580 mg/kg of lead from a 1, 000 mg/L solution of lead nitrate.…”

Section: Phytoextraction Of Lead By a Hyperaccumulatormentioning

confidence: 99%

An assessment of the Causes of Lead Pollution and the Efficiency of Bioremediation by Plants and Microorganisms

Shiomi¹

2015

Advances in Bioremediation of Wastewater and Polluted Soil

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Abstract" rapid increase in mining industries associated with an increase in lead demand has resulted in the problem of lead poisoning. In this study, the initial causes of lead pollution were investigated. The results suggest that soil pollution from lead did not occur in urban and agricultural areas due to the efforts of decreased lead use and an increase in recycling however, serious pollution locally occurred in the areas where metallurgy and mining industries were present. Therefore, remediation must be carried out in the latter areas. Next, the efficiency of lead remediation by plants and microorganisms in the areas with increased lead pollution was assessed. The plants showing high potential have been developed, and phytoextraction is a promising process. However, a more cost-effective method is necessary to achieve widespread implementation. Thus, a novel remediation method the landfarming with immobilized microorganisms LIM method to overcome the problem of cost was proposed. The LIM method combines the immobilized technique with landfarming. "s the treatment period is short and the lead can readily be recycled from the soil, the LIM method may be a better alternative to phytoextraction for lead remediation. Keywords: Lead, Phytoextraction, "ioremediation, Landfarming© 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. . IntroductionPollution by heavy metals has gradually worsened in "sian, "frican, and South "merican countries, partly due to the excessive use of pesticides for growing crops which may in turn lead to the pollution of groundwater and well water. "n investigation by the Food and "griculture Organization F"O /United Nations Environment Programme UNEP /World Health Organization WHO suggests that the number of patients with pesticide poisoning is approximately -million annually, and several thousand cases are fatal. In some "sian countries, wells reserved for drinking water were dug below the acceptable levels to avoid pesticide pollution, and consequently, many inhabitants developed arsenic poisoning [ , ]. Rivers and soils are also polluted by industrial wastes in those countries. In particular, wastes from metallurgy and mining industries contain various heavy metal ions, and wastes from leather industries contain cadmium and chromium. These wastes are typically exhausted and discarded in nearby rivers and in the air due to the lack of posttreatment equipment or strictly controlled landfill sites, resulting in detrimental groundwater and soil pollution."dditionally, environmental pollution by heavy metals has resulted in serious disease. In Japan, four historic cases of metal pollution occurring predominately in the s have been reported, which include ouch-ouch disease and Minamata disease. In , a mining company eliminated cadmium waste into a nearb...

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Comparative assessment for hyperaccumulatory and phytoremediation capability of three wild weeds

Cited by 57 publications

References 78 publications

Cannabis contaminants: sources, distribution, human toxicity and pharmacologic effects

Cannabis contaminants: sources, distribution, human toxicity and pharmacologic effects

Abutilon indicum L.: a prospective weed for phytoremediation

An assessment of the Causes of Lead Pollution and the Efficiency of Bioremediation by Plants and Microorganisms

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