Genes coding for transporters showed a rapid and sharp increase in their expression in response to lead, in the aquatic fern (Salvinia minima Baker)

Leal-Alvarado, D.A.; Estrella‐Maldonado, Humberto; Sáenz, Luis; Ramírez-Prado, Jorge Humberto; Zapata-Pérez, Omar; Santamaría, Jorge M.

doi:10.1016/j.ecoenv.2017.09.046

Cited by 16 publications

(6 citation statements)

References 71 publications

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“…In this context, [28] reported the activation of mechanisms of chelation and metal sequestration mediated by phytochelatins in the roots of S. minima exposed during 24 h to 40 µM Pb. More recently, [29] demonstrated an increment in the expression levels of four genes coding transmembrane transport proteins (SmABCC, SmATPase, SmNhaD, and SmABCG) in S. minima also exposed to 40 µM Pb during 24 h. Also, these authors have suggested that the above-mentioned genes are implicated in Pb accumulation in S. minima [29]. Hence, it may be expected that other Salvinia species share similar biosorption mechanisms for Pb uptake.…”

Section: Metal Removal Efficiency From Water-polluted Samplesmentioning

confidence: 95%

Variations in the Phytoremediation Efficiency of Metal-polluted Water with Salvinia biloba: Prospects and Toxicological Impacts

Emiliani

Oyarce

Bergara

et al. 2020

Water

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The occurrence of heavy metals in industrial wastewater is unanimously considered a major concern since these pollutants cannot be chemically or biologically degraded and therefore have long residence times. Phytoremediation is one of the most widespread biotechnological applications worldwide, which consists in the use of plants to adsorb or accumulate a broad range of inorganic and organic contaminants from water, air, and soil. To improve the cost-effectiveness and sustainability of phytoremediation-based wastewater treatment systems, it is essential to use plants that are not only efficient in pollutants removal, but also abundant and easily accessible at the target site, requiring no-special culture conditions. In this study, we have evaluated the capacity of naturally-occurring aquatic macrophytes of the genus Salvinia (classified as Salvinia biloba) to phytoremediate water artificially contaminated with cadmium (Cd), copper (Cu), lead (Pb), or zinc (Zn) at equal molar concentrations (50 ± 2 and 100 ± 1 µM), during 48 h. Additionally, photosynthetic and antioxidant pigments (carotenoids, chlorophylls, anthocyanins, and flavonoids), and soluble carbohydrate content was also measured in floating leaves of Salvinia specimens to appraise heavy metals phytotoxicity. Elemental analyses to plant tissue indicate that S. biloba was able to bioconcentrate all four metals analyzed, albeit with different degrees of affinity. In addition, the mechanisms of uptake and detoxification were dissimilar for each ion, resulting in greater removal of Cu and Pb (≥96%, at both concentrations), in comparison to Cd (79 ± 4% and 56 ± 2% for 50 ± 2 and 100 ± 1 µM, respectively) and Zn (77 ± 5% and 70 ± 4% for 50 ± 2 and 100 ± 1 µM, respectively). Accordingly, the assessment of the selected physiological parameters in floating leaves suggests that different response mechanisms are triggered by each metal in S. biloba to counteract the corresponding toxicological stress.

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Section: Metal Removal Efficiency From Water-polluted Samplesmentioning

confidence: 95%

Variations in the Phytoremediation Efficiency of Metal-polluted Water with Salvinia biloba: Prospects and Toxicological Impacts

Emiliani

Oyarce

Bergara

et al. 2020

Water

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“…It randomly selects multiple individuals (based on their fitness) from the current population and generates a new population of life through the theory of natural selection and mutation. is population becomes the current population in the next iteration of the algorithm [18]. e basic flow of the genetic algorithm is shown in Figure 2.…”

Section: Genetic Algorithmsmentioning

confidence: 99%

Comprehensive Treatment of Urban Landscape Water Environment Based on Aquatic Plants Purification and Restoration

2022

Security and Communication Networks

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Water is the source of life and the foundation for the growth of all things. Water is also an important part of the urban ecological structure. A healthy water environment is the basis for human survival and development, and it is also one of the important conditions for the harmonious development of cities. With the rapid development of the economy and the improvement of the level of urbanization, the water environment pollution in the urban landscape has become more and more serious, such as serious water eutrophication and rapid algae reproduction in the water environment. As plants that can survive in water, aquatic plants have always been an important main body of the water ecological environment. It plays an unparalleled role in water environment purification and comprehensive treatment of water pollution. This paper aims to study the comprehensive management of urban landscape water environment based on the purification and restoration of aquatic plants. It combines the purification and restoration ability of aquatic plants and genetic algorithm to carry out the comprehensive management experiment of urban landscape water environment. The conclusion shows that after the purification and restoration of aquatic plants and comprehensive pollution control, the comprehensive eutrophic substance content of the urban landscape pond water body decreased by 21.7 mg, and the water body transparency increased by 20 cm.

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“…The ANOVA analysis conducted shows that there was a significant difference (p > 0.05) in the reduction reading of pollutants. Salvinia minima is a fast-growing aquatic fern which has high adaptability to various aquatic environments [39][40][41]. Salvinia minima was able to accumulate pollutants in different physiological conditions, as it consists of floating leaves and a submerged leaves structure [42,43].…”

Section: Reduction Rate Of Codmentioning

confidence: 99%

Phytoremediation of TSS, NH3-N and COD from Sewage Wastewater by Lemna minor L., Salvinia minima, Ipomea aquatica and Centella asiatica

et al. 2020

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The rapid growth of industries has resulted in wastewater generation containing different organic and chemical substances channeled into the water body. This causes the arising of water pollution issues in many regions. The phytoremediation method was introduced in the process of treating water pollution as it is low cost and environmentally friendly. Lemna minor, Salvinia minima, Ipomoea aquatica and Centella asiatica were chosen in this study because they have tolerance to various pollution conditions and are able to remove organic pollutants and heavy metals. The objectives of this study were to determine the water quality before and after treatment, to determine the rate of reduction in total suspended solids (TSS), ammoniacal nitrogen (NH3-N), and chemical oxygen demand (COD) in sewage water through the phytoremediation method and to assess the effectiveness of the plants in the phytoremediation of sewage wastewater. It was found that, Lemna minor, Salvinia minima, Ipomoea aquatica and Centella asiatica were able to reduce TSS by 50.8%, 77.6%, 85.6% and 67.6%, respectively; NH3-N by 80.4%, 89.9, 97.3% and 79.1%, respectively; and COD by 75%, 82%, 44.8% and 36.46%, respectively. In this study, it was found that sewage wastewater treatment using Ipomoea aquatica was more efficient in reducing NH3-N and Salvinia minima was more efficient in reducing TSS and COD values.

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Genes coding for transporters showed a rapid and sharp increase in their expression in response to lead, in the aquatic fern (Salvinia minima Baker)

Cited by 16 publications

References 71 publications

Variations in the Phytoremediation Efficiency of Metal-polluted Water with Salvinia biloba: Prospects and Toxicological Impacts

Variations in the Phytoremediation Efficiency of Metal-polluted Water with Salvinia biloba: Prospects and Toxicological Impacts

Comprehensive Treatment of Urban Landscape Water Environment Based on Aquatic Plants Purification and Restoration

Phytoremediation of TSS, NH3-N and COD from Sewage Wastewater by Lemna minor L., Salvinia minima, Ipomea aquatica and Centella asiatica

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