Physiological responses and accumulation of heavy metals and arsenic of Medicago sativa L. growing on acidic copper mine tailings in arid lands

Chen, Fulong; Wang, Shuzhi; Mou, Shuyong; azimuddin, syed muhammad iqbal; Zhang, Daoyong; Pan, Xiangliang; Al‐Misned, Fahad A.; Mortuza, M. Golam

doi:10.1016/j.gexplo.2015.05.011

Cited by 44 publications

(11 citation statements)

References 48 publications

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“…trifolii that could methylate and volatilize inorganic arsenic in symbiosis with red clover without any negative effect on nitrogen fixation [ 102 ]. Additionally, some genes associated with improved legume-Rhizobium symbiosis have been identified [ 103 , 104 , 105 ]. Therefore, genomic manipulation strategies for improving the rhizobial should be used to increase heavy-metal tolerance.…”

Section: Impacts Of Legume–rhizosphere Microbe Interaction On Hm and ...mentioning

confidence: 99%

The Anatomical Basis of Heavy Metal Responses in Legumes and Their Impact on Plant–Rhizosphere Interactions

Pandey

Zorić

Sun

et al. 2022

Plants

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Rapid industrialization, urbanization, and mine tailings runoff are the main sources of heavy metal contamination of agricultural land, which has become one of the major constraints to crop growth and productivity. Finding appropriate solutions to protect plants and agricultural land from heavy metal pollution/harmful effects is important for sustainable development. Phytoremediation and plant growth-promoting rhizobacteria (PGPR) are promising methods for this purpose, which both heavily rely on an appropriate understanding of the anatomical structure of plants. Specialized anatomical features, such as those of epidermis and endodermis and changes in the root vascular tissue, are often associated with heavy metal tolerance in legumes. This review emphasizes the uptake and transport of heavy metals by legume plants that can be used to enhance soil detoxification by phytoremediation processes. Moreover, the review also focuses on the role of rhizospheric organisms in the facilitation of heavy metal uptake, the various mechanisms of enhancing the availability of heavy metals in the rhizosphere, the genetic diversity, and the microbial genera involved in these processes. The information presented here can be exploited for improving the growth and productivity of legume plants in metal-prone soils.

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Section: Impacts Of Legume–rhizosphere Microbe Interaction On Hm and ...mentioning

confidence: 99%

The Anatomical Basis of Heavy Metal Responses in Legumes and Their Impact on Plant–Rhizosphere Interactions

Pandey

Zorić

Sun

et al. 2022

Plants

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“…Mixing mine tailings with garden soil helps decrease the bioavailability of metals and improves mine tailing structure and ultimately upgrades the physical properties and nutrient status of mine tailings. Moreover, this method has been commonly used in many studies of phytoremediation in mine tailing (Chen et al, 2015;Han et al, 2016;Tang et al, 2019). In the present study, four treatments were set up in the pot experiment with different weighted proportions of Pb-Zn mine tailings and garden soils.…”

Section: Experimental Designmentioning

confidence: 99%

“…Plants require certain heavy metals (HMs) as essential elements for their growth, development, and yield production, but excess amount of these metals can become phytotoxic and cause adverse effects on plant biomass production, crop yield, and food safety (Pierattini et al, 2017). The major sources of HMs originated from anthropogenic activities; mining activities seem to be the largest contributor of HM pollutions in many places, and it is a particular case in China (Ha et al, 2011;Han et al, 2013;Zhuang et al, 2014;Chen et al, 2015). It was recently reported that the mining activities have resulted in about 40,000 ha mining wastelands in this country, and the wastelands have been continuously expanded at a rate of 3,300 ha per year (Li, 2006;Luo et al, 2015;Yu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Photosynthesis Performance and Antioxidative Enzymes Response of Melia azedarach and Ligustrum lucidum Plants Under Pb–Zn Mine Tailing Conditions

Huang

Zhu

et al. 2020

Front. Plant Sci.

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Lead-zinc (Pb-Zn) mine tailings pose a great risk to the natural environment and human health because of their high toxicity. In this study, the responses of photosynthesis, chlorophyll fluorescence, and antioxidative enzyme of Melia azedarach and Ligustrum lucidum in the soil contaminated by Pb-Zn mine tailings were investigated. Results showed that Pb-Zn mine tailings significantly reduced net photosynthetic rates and leaf photosynthetic pigment content of both trees, and the reduction of net photosynthetic rates was mainly caused by their biochemical limitation (BL). The chlorophyll fluorescence parameters from Pb-Zn tailing stressed leaves indicated that Pb-Zn tailings affected PSII activity which was evident from the change values of energy fluxes per reaction center (RC): probability that an electron moves further than Q A − (ET O /TR O), maximum quantum yield for primary photochemistry (TR O /ABS), the density of PSII RC per excited crosssection (RC/CS O), the absorption of antenna chlorophylls per PSII RC (ABS/RC), and the turnover number of Q A reduction events (N). Pb-Zn mine tailings also affected the oxidation and reduction of PSI, which resulted in a great increase of reactive oxygen species (ROS) contents and then stimulated the rate of lipid peroxidation. Both trees exhibited certain antioxidative defense mechanisms as elevated superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities, then declined under high level of Pb-Zn tailing treatment. Comparatively, L. lucidum showed less extent effect on photosynthesis and higher antioxidative enzyme activities than M. azedarach; thus L. lucidum was more tolerant than M. azedarach at least under the described Pb-Zn tailing treatment. These results indicate that the effect of Pb-Zn mine tailings on photosynthesis performance mainly related to imbalance of the PSII activity and PSI redox state in both trees. We propose that M. azedarach and L. lucidum could relieve the oxidative stress for phytoremediation under the appropriate Pb-Zn mine tailing content.

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“…La alfalfa (Medicago sativa) es considerada como planta acumuladora con buen efecto remediador (10,11) . Es utilizada para la alimentación de bovinos lecheros, debido a que es una leguminosa de gran aporte nutricional (12,13) .…”

Section: Introductionunclassified

Metales pesados en leche de vacas alimentadas con alfalfa producida en suelos irrigados con aguas residuales en Puebla y Tlaxcala, México

Castro-González

Moreno-Rojas

Sánchez

et al. 2018

Rev. Mex. Cienc. Pecu.

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Physiological responses and accumulation of heavy metals and arsenic of Medicago sativa L. growing on acidic copper mine tailings in arid lands

Cited by 44 publications

References 48 publications

The Anatomical Basis of Heavy Metal Responses in Legumes and Their Impact on Plant–Rhizosphere Interactions

The Anatomical Basis of Heavy Metal Responses in Legumes and Their Impact on Plant–Rhizosphere Interactions

Photosynthesis Performance and Antioxidative Enzymes Response of Melia azedarach and Ligustrum lucidum Plants Under Pb–Zn Mine Tailing Conditions

Metales pesados en leche de vacas alimentadas con alfalfa producida en suelos irrigados con aguas residuales en Puebla y Tlaxcala, México

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