Biodiversity variability and metal accumulation strategies in plants spontaneously inhibiting fly ash lagoon, India

Mukhopadhyay, S.; Rana, Vivek; Kumar, Adarsh; Maiti, Subodh Kumar

doi:10.1007/s11356-017-9930-4

Cited by 31 publications

(18 citation statements)

References 50 publications

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“…Similarly, Roca et al [116] showed that the extractable fraction of metals in soils can be related to the bioaccumulation factor for the identification of native plants with the capacity to take up high concentrations of metals from soils and accumulate them in their tissues. Other studies have also shown that soil available metal concentration is the most appropriate basis for examining plant metal uptake [117][118][119][120][121]. Thus, we conclude that plant available form of metal in soil is a more relevant descriptor than its total form to use in plant-soil metal relationship models.…”

Section: Accepted Manuscriptsupporting

confidence: 50%

A new conceptual framework for plant responses to soil metals based on metal transporter kinetic parameters

Guterres

Rossato

Doley

et al. 2019

Journal of Hazardous Materials

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Based on a review of the literature, we have developed a functional conceptual framework of plant metal uptake in relation to plant available metal concentration in the soil. This framework applies to all plant parts and plant available metal levels in soils, and was validated using independent datasets from field surveys and the literature. This is the first framework based on metal transporter kinetic parameters and combining Michaelis-Menten (hyperbolic) kinetics facilitated by the High Affinity Transport System (HATS) for soil concentrations below the transition concentration between transport systems, and linear metal uptake facilitated by the Low Affinity Transport System (LATS) for higher soil available metal concentrations. We propose a new terminology for metal tolerant plants, i.e. metal tolerators, based on this framework. Depending on the plant available metal levels in the soil, tolerator responses to metals can be described best by either Vmax and Km for soil concentrations below the transition concentration between metal transport systems (HATS), or by the slope for greater soil concentrations (LATS). This conceptual framework may be a useful tool for selecting suitable metal tolerators for specific phytoremediation purposes, and may be also applied to non-metal elements or ions.

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Section: Accepted Manuscriptsupporting

confidence: 50%

A new conceptual framework for plant responses to soil metals based on metal transporter kinetic parameters

Guterres

Rossato

Doley

et al. 2019

Journal of Hazardous Materials

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show abstract

“…(2017) showed that the extractable fraction of metals in soils can be related to the bioaccumulation factor for the identification of native plants with the capacity to take up high concentrations of metals from soils and accumulate them in their tissues. Other studies have also shown that soil available metal concentration is the most appropriate basis for examining plant metal uptake (Jamali et al, 2006, Massas et al, 2013, Wójcik et al, 2014, Mukhopadhyay et al, 2017. Thus, we conclude that plant available form of metal in soil is a more relevant descriptor than its total form to use in plant-soil metal relationship models.…”

Section: Conceptual Framework Validation Using Field Survey Of Queenssupporting

confidence: 49%

An investigation into the use of Australian native plants and designer metal-binding particles for remediation of metal-contaminated landscapes

Correia¹,

Fatima²

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Contamination of soils with arsenic (As), lead (Pb), copper (Cu), manganese (Mn), zinc (Zn), cadmium (Cd) and aluminium (Al) as a result of mining and other industrial activities is a pervasive problem worldwide. High concentrations of these metal/loids and other contaminants in surface soil layers may prevent the growth of vegetation, leading to wind and water erosion of the soil and dispersion of the contaminants to adjacent areas. As a result, ecosystem and human health are put at risk via exposure through the food chain, drinking water and air. Phytoremediation uses metal-tolerant plants (i.e. metallophytes) to extract or stabilize metals in the soils of contaminated sites. Plant establishment for phytoremediation may be limited and delayed when soil contamination is severe. Reduction of contaminant concentrations in the surface soil is a common but not always effective means of enhancing plant establishment on polluted sites. The understanding of plant responses to various concentrations of metals in soils and their metal accumulation characteristics is crucial to selection of the metallophyte plants most appropriate for specific phytoremediation purposes. The design and use of micron-size hydrogel particles that have the capacity to bind toxic soluble metals and supply water offers an effective means to enhance plant establishment. A literature review identified new key parameters for the characterization of plant responses to metals in soil. Based on metal transporter kinetic parameters, a conceptual framework of plant metal uptake in relation to plant available metal concentration in soil was developed, and a new associated terminology for metallophytes is proposed, i.e. metal tolerators. The framework applies to all plant parts and plant available metal concentrations in soils, and was validated using independent datasets from field surveys of Queensland native plant species and the literature. This new framework may be a useful tool for selecting suitable metal tolerators for specific phytoremediation purposes, and may be also applied to non-metal elements or ions. The thesis also examined four Australian native plant species, Astrebla lappacea, Themeda australis, Austrostipa scabra and Acacia harpophylla for their tolerances to different concentrations of arsenic (As(V), 13.34-667.36 µM), copper (Cu 2+ , 0.5-200 µM), zinc (Zn 2+ , 9-500 µM), manganese (Mn 2+ , 8-10240 µM) and lead (Pb 2+ , 240-9600 µM) in single solutions during germination in controlled laboratory conditions. Metal/loid tolerance indicators used were maximum germination percentage (G max), mean germination time (MGT), radicle and shoot tolerance indexes (RTI & STI). Radicle tolerance index was the most sensitive indicator of metal I acknowledge that copyright of all material contained in my thesis resides with the copyright holder(s) of that material. Where appropriate I have obtained copyright permission from the copyright holder to reproduce material in this thesis and have sought permission from co-authors for any jointly authored ...

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“…where n i is the number of individuals of each species; N the total number of individuals To quantify species biodiversity, the Shannon-Wiener Diversity Index (H) was calculated (Mukhopadhyay et al 2017):…”

Section: Biodiversity and Dominance Assessmentmentioning

confidence: 99%

A comparative study of Epipactis atrorubens in two different forest communities of the Middle Urals, Russia

et al. 2019

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The objective of this study was to compare ecophysiological and morphological parameters of a regionally endangered orchid species, Epipactis atrorubens (Hoffm. ex Bernh.) Bess., growing in two forest communities (on serpentine and granite outcrops) of the Middle Urals, Russia. Biodiversity, dominance, and phytocoenosis studies showed the colonization of a wide range of plant species on both sites. The physicochemical properties of the soil, chemical composition and morphological features of E. atrorubens, growing under technogenic conditions (asbestos deposits), on serpentine outcrops and in the natural environment of the granite massif were studied for the first time. The serpentine substrate differed from the granite one by its greater stoniness, circumneutral pH and lower contents of available nitrogen and phosphorus. Extremely high concentrations of magnesium were found in the serpentine soil, some 79 times higher than in the granite substrate. High concentrations of nickel (94 times), chromium (59 times), cobalt (17 times), and iron (4 times) were found in the serpentine substrate, higher than in the granite substrate. The differences between the sites for available metal contents and for root and shoot metal contents were significantly less. Concentrations of most of the metals in the roots were higher than in the shoots. Despite higher metal concentrations and lower nitrogen and phosphorus levels in serpentine soils, E. atrorubens had a larger population and greater viability compared to those growing on granite. Plants on serpentine outcrops were characterized by the formation of a larger number of fruits, greater root lengths and thicker leaf blades, compared to plants on granites. The well-developed orchid mycorrhizae contributed to the survival of this species under unfavorable serpentine conditions. Hence, serpentine outcrops formed due to the mining of asbestos could be a suitable substrate for the light-demanding E. atrorubens due to its capacity to adapt to dry, rocky, nutrient-depleted soils and limited competition from other plants.

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Biodiversity variability and metal accumulation strategies in plants spontaneously inhibiting fly ash lagoon, India

Cited by 31 publications

References 50 publications

A new conceptual framework for plant responses to soil metals based on metal transporter kinetic parameters

A new conceptual framework for plant responses to soil metals based on metal transporter kinetic parameters

An investigation into the use of Australian native plants and designer metal-binding particles for remediation of metal-contaminated landscapes

A comparative study of Epipactis atrorubens in two different forest communities of the Middle Urals, Russia

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