Root exudation pattern of Typha latifolia L. plants after copper exposure

Lyubenova, Lyudmila; Kuhn, Arnd J.; Höltkemeier, Agnes; Schröder, Peter

doi:10.1007/s11104-013-1634-z

Cited by 36 publications

(16 citation statements)

References 26 publications

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“…Root exudates includes organic acid fractions that occurs as anions in soils, these substances are associated to detoxification processes by chelating metals and converting them to inactive and non-toxic forms and reducing their intake rate [46,58]. For instance, Cu(II) as copper sulfate (CuSO 4 ) and copper nitrate (Cu(NO 3 ) 2 ) has been proved to induce the exudation of organic acids in Typha latifolia [66]. Other plants used in phytoremediation such as Poa annua, Medicago polymorpha, and Malva sylvestris showed a correlation between the higher concentrations of Cd, Cu, and Zn and the excretion of low molecular organic acids [67].…”

Section: Accumulation and Detoxification Mechanismsmentioning

confidence: 99%

Review of Constructed Wetlands for Acid Mine Drainage Treatment

Pat-Espadas

Loredo-Portales

Amábilis-Sosa

et al. 2018

Water

106

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The mining industry is the major producer of acid mine drainage (AMD). The problem of AMD concerns at active and abandoned mine sites. Acid mine drainage needs to be treated since it can contaminate surface water. Constructed wetlands (CW), a passive treatment technology, combines naturally-occurring biogeochemical, geochemical, and physical processes. This technology can be used for the long-term remediation of AMD. The challenge is to overcome some factors, for instance, chemical characteristics of AMD such a high acidity and toxic metals concentrations, to achieve efficient CW systems. Design criteria, conformational arrangements, and careful selection of each component must be considered to achieve the treatment. The main objective of this review is to summarize the current advances, applications, and the prevalent difficulties and opportunities to apply the CW technology for AMD treatment. According to the cited literature, sub-surface CW (SS-CW) systems are suggested for an efficient AMD treatment. The synergistic interactions between CW components determine heavy metal removal from water solution. The microorganism-plant interaction is considered the most important since it implies symbiosis mechanisms for heavy metal removal and tolerance. In addition, formation of litter and biofilm layers contributes to heavy metal removal by adsorption mechanisms. The addition of organic amendments to the substrate material and AMD bacterial consortium inoculation are some of the strategies to improve heavy metal removal. Adequate experimental design from laboratory to full scale systems need to be used to optimize equilibria between CW components selection and construction and operational costs. The principal limitations for CW treating AMD is the toxicity effect that heavy metals produce on CW plants and microorganisms. However, these aspects can be solved partially by choosing carefully constructed wetlands components suitable for the AMD characteristics. From the economic point of view, a variety of factors affects the cost of constructed wetlands, such as: detention time, treatment goals, media type, pretreatment type, number of cells, source, and availability of gravel media, and land requirements, among others.

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Section: Accumulation and Detoxification Mechanismsmentioning

confidence: 99%

Review of Constructed Wetlands for Acid Mine Drainage Treatment

Pat-Espadas

Loredo-Portales

Amábilis-Sosa

et al. 2018

Water

106

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“…Al toxicity is considered as the main factor limiting crop yield on acidic soils [ 36 ]. Under Al stress, root exudation of organic acids, such as malate, citrate, and oxalate, is an important mechanism in plant resistance to Al toxicity [ 37 , 38 ]. The genes controlling organic anion efflux from roots have been isolated from several crop species [ 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

Genome-wide analysis of MATE transporters and expression patterns of a subgroup of MATE genes in response to aluminum toxicity in soybean

Liu¹,

Yang²,

Wang³

et al. 2016

BMC Genomics

127

154

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BackgroundMultidrug and toxic compound extrusion (MATE) family is an important group of the multidrug efflux transporters that extrude organic compounds, transporting a broad range of substrates such as organic acids, plant hormones and secondary metabolites. However, genome-wide analysis of MATE family in plant species is limited and no such studies have been reported in soybean.ResultsA total of 117 genes encoding MATE transporters were identified from the whole genome sequence of soybean (Glycine max), which were denominated as GmMATE1 - GmMATE117. These 117 GmMATE genes were unevenly localized on soybean chromosomes 1 to 20, with both tandem and segmental duplication events detected, and most genes showed tissue-specific expression patterns. Soybean MATE family could be classified into four subfamilies comprising ten smaller subgroups, with diverse potential functions such as transport and accumulation of flavonoids or alkaloids, extrusion of plant-derived or xenobiotic compounds, regulation of disease resistance, and response to abiotic stresses. Eight soybean MATE transporters clustered together with the previously reported MATE proteins related to aluminum (Al) detoxification and iron translocation were further analyzed. Seven stress-responsive cis-elements such as ABRE, ARE, HSE, LTR, MBS, as well as a cis-element of ART1 (Al resistance transcription factor 1), GGNVS, were identified in the upstream region of these eight GmMATE genes. Differential gene expression analysis of these eight GmMATE genes in response to Al stress helps us identify GmMATE75 as the candidate gene for Al tolerance in soybean, whose relative transcript abundance increased at 6, 12 and 24 h after Al treatment, with more fold changes in Al-tolerant than Al-sensitive cultivar, which is consistent with previously reported Al-tolerance related MATE genes.ConclusionsA total of 117 MATE transporters were identified in soybean and their potential functions were proposed by phylogenetic analysis with known plant MATE transporters. The cis-elements and expression patterns of eight soybean MATE genes related to Al detoxification/iron translocation were analyzed, and GmMATE75 was identified as a candidate gene for Al tolerance in soybean. This study provides a first insight on soybean MATE family and their potential roles in soybean response to abiotic stresses especially Al toxicity.Electronic supplementary materialThe online version of this article (doi:10.1186/s12864-016-2559-8) contains supplementary material, which is available to authorized users.

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“…Agricultural activity is a significant global concern in terms of its negative impact on the environment and on food chain [ 17 , 42 , 125 , 126 ]. Animal production and pig livestock in particular are a key link in the food chain and in the spread of heavy metals.…”

Section: Discussionmentioning

confidence: 99%

Heavy-Metal Phytoremediation from Livestock Wastewater and Exploitation of Exhausted Biomass

Hejna

Onelli

Moscatelli

et al. 2021

IJERPH

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Sustainable agriculture is aimed at long-term crop and livestock production with a minimal impact on the environment. However, agricultural practices from animal production can contribute to global pollution due to heavy metals from the feed additives that are used to ensure the nutritional requirements and also promote animal health and optimize production. The bioavailability of essential mineral sources is limited; thus, the metals are widely found in the manure. Via the manure, metallic ions can contaminate livestock wastewater, drastically reducing its potential recycling for irrigation. Phytoremediation, which is an efficient and cost-effective cleanup technique, could be implemented to reduce the wastewater pollution from livestock production, in order to maintain the water conservation. Plants use various strategies for the absorption and translocation of heavy metals, and they have been widely used to remediate livestock wastewater. In addition, the pollutants concentrated in the plants can be exhausted and used as heat to enhance plant growth and further concentrate the metals, making recycling a possible option. The biomass of the plants can also be used for biogas production in anaerobic fermentation. Combining phytoremediation and biorefinery processes would add value to both approaches and facilitate metal recovery. This review focuses on the concept of agro-ecology, specifically the excessive use of heavy metals in animal production, the various techniques and adaptations of the heavy-metal phytoremediation from livestock wastewater, and further applications of exhausted phytoremediated biomass.

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Root exudation pattern of Typha latifolia L. plants after copper exposure

Cited by 36 publications

References 26 publications

Review of Constructed Wetlands for Acid Mine Drainage Treatment

Review of Constructed Wetlands for Acid Mine Drainage Treatment

Genome-wide analysis of MATE transporters and expression patterns of a subgroup of MATE genes in response to aluminum toxicity in soybean

Heavy-Metal Phytoremediation from Livestock Wastewater and Exploitation of Exhausted Biomass

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