Enhanced Phytoremediation of Bisphenol A in Polluted Lake Water by Seedlings of Ceratophyllum demersum and Myriophyllum spicatum from In Vitro Culture

Bisphenol A (BPA) is a typical endocrine disruptor that causes problems in waters all around the world. In this study, the effects of submerged macrophytes (Ceratophyllum demersum and Myriophyllum spicatum) cultured in vitro on the removal of BPA at two initial concentrations (0.5 mg L−1 vs. 5.0 mg L−1) from Donghu lake water were investigated, using different biomass densities (2 g L−1 vs. 10 g L−1) under different nutrient conditions (1.85 mg L−1 and 0.039 mg L−1 vs. 8.04 mg L−1 and 0.175 mg L−1 of the total nitrogen and phosphorus concentration, respectively), together with the effect of indigenous microorganisms in the water. The results showed that indigenous microorganisms had limited capacity for BPA removal, especially at higher BPA initial concentration when its removal rate amounted to about 12% in 12 days. Addition with plant seedlings (5 cm in length) greatly enhanced the BPA removal, which reached 100% and over 50% at low and high BPA initial concentration in 3 days, respectively. Higher biomass density greatly favored the process, resulting in 100% of BPA removal at high BPA initial concentration in 3 days. However, increases in nutrient availability had little effect on the BPA removal by plants. BPA at 10.0 mg L−1 significantly inhibited the growth of M. spicatum. Therefore, C. demersum may be a candidate for phytoremediation due to greater efficiency for BPA removal and tolerance to BPA pollution. Overall, seedlings of submerged macrophytes from in vitro culture showed great potential for use in phytoremediation of BPA in natural waters, especially C. demersum.

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Treatment of Bisphenol A (BPA) in water using UV/H2O2 and reverse osmosis (RO) membranes: assessment of estrogenic activity and membrane adsorption

Water Science & Technology ◽

10.2166/wst.2020.024 ◽

2019 ◽

Vol 80 (11) ◽

pp. 2169-2178

Author(s):

Carolina G. Moreira ◽

Mariana H. Moreira ◽

Vanessa M. O. C. Silva ◽

Henrique G. Santos ◽

Daniele M. Bila ◽

...

Keyword(s):

Bisphenol A ◽

Reverse Osmosis ◽

Removal Efficiency ◽

Membrane Separation ◽

Estrogenic Activity ◽

Membrane Surface ◽

Initial Concentration ◽

Bpa Removal ◽

Uv Dose

Abstract Removal of an endocrine disrupting compound, Bisphenol A (BPA), from water was investigated using two treatment processes, UV/H2O2 advanced oxidation (AOP) and reverse osmosis (membrane separation). Furthermore, changes in estrogenic activity using in vitro yeast estrogen screen assay as well as the adsorption of BPA by the membrane surface were evaluated. The best UV/H2O2 performance was obtained using the highest established values of all parameters, reaching 48% BPA removal. Within the investigated conditions of the AOP, when lower doses of UV were used, a higher removal efficiency was achieved at a higher initial concentration of BPA. However, the same behavior was not observed for the highest UV dose, in which the removal efficiency was not dependent on BPA initial concentration. In both cases, removal efficiency increased as H2O2 concentration increased. The formation of estrogenic by-products was observed in UV/H2O2. The membrane rejection efficiency varied from 60% to 84% and all experiments showed adsorption of BPA by the membrane surface. The RO membrane showed a greater BPA removal efficiency for samples containing 10 μg·L−1 than UV/H2O2 at the evaluated treatment conditions.

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Impact of riparian trees shade on aquatic plant abundance in conservation islands

Acta Botanica Croatica ◽

10.2478/v10184-010-0012-7 ◽

2011 ◽

Vol 70 (2) ◽

pp. 245-258 ◽

Cited By ~ 8

Author(s):

Magdi Ali ◽

Samar Hassan ◽

Abdel-Samei Shaheen

Keyword(s):

Aquatic Plant ◽

Submerged Macrophytes ◽

Myriophyllum Spicatum ◽

Ceratophyllum Demersum ◽

Submerged Plants ◽

Plant Abundance ◽

Potamogeton Crispus ◽

Azolla Filiculoides ◽

Riparian Trees ◽

Significant Difference

Impact of riparian trees shade on aquatic plant abundance in conservation islands Temperature, acidity, light conditions, total dissolved salts, conductivity, dissolved oxygen, submerged macrophytes and shade and sun path directions were measured at 23 sites along the River Nile banks with aAcacia nilotica growing at water's edge around the First Cataract Conservation Islands. Ceratophyllum demersum and Potamogeton crispus were common in the shaded and unshaded zones, Myriophyllum spicatum and Vallisneria spiralis were found only in the unshaded zone and Azolla filiculoides only in the shaded zone. Banks of the sites surveyed were oriented to five directions (NW, SE, NE, SW, N). There is a significant difference in both the type and density of submerged plants growing under the shade of riparian trees (Acacia nilotica) as compared to unshaded areas. Water column irradiance is the most influential variable dictating the distribution of submerged plants. The area of the shade provided by riparian trees was affected by environmental and/or plant variables. Environmental variables comprised the daily course of the exposition to sun; and plant variables included the area of the tree crown, the height of the tree and geographical position of the tree in relation to sun exposition. Trees on the west bank of the islands at the SW-NE direction have the highest shading effect. The management of tree vegetationmight control incoming solar radiation affecting submerged macrophytes.

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Structure of epiphyton communities on Lake Baikal submerged macrophytes

Limnological Review ◽

10.2478/v10194-011-0041-1 ◽

2012 ◽

Vol 12 (1) ◽

pp. 19-27 ◽

Cited By ~ 7

Author(s):

Galina Pomazkina ◽

Lyubov Kravtsova ◽

Ekaterina Sorokovikova

Keyword(s):

Lake Baikal ◽

New Records ◽

Submerged Macrophytes ◽

Myriophyllum Spicatum ◽

Elodea Canadensis ◽

Ceratophyllum Demersum ◽

Potamogeton Perfoliatus ◽

Low Diversity ◽

Quantitative Characteristics ◽

Quantitative Development

Abstract We carried out a first study of Lake Baikal epiphyton on six species of submerged macrophytes: Myriophyllum spicatum L., Potamogeton perfoliatus L., Potamogeton sp., Sparganium gramineum Georgi, Ceratophyllum demersum L., and Elodea сanadensis Michaux. We identified 70 epiphyton species and intraspecific taxa belonging to 3 phyla, viz. Ochrophyta, Cyanobacteria, and Chlorophyta. Nine species of Cyanobacteria were new records for Lake Baikal. Epiphyton communities differing in species composition and quantitative characteristics grew on diverse species of submerged macrophytes. High levels of species richness were recorded on Sparganiumgramineum and Potamogeton sp., whereas low diversity of epiphyton was observed on Myriophyllum spicatum and Elodea canadensis. A monodominant community was revealed on the invasive Elodea canadensis represented by Cocconeis placentula var. placentula. Specific characteristics of morphology of submerged macrophytes influenced the structural organization and quantitative development of epiphyton. Epiphyton abundance and biomass were higher on upper sections of most plants than on lower sections, probably because of canopy shading of macrophyte lower portions.

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Bisphenol A Affects on the Functional Properties and Proteome of Testicular Germ Cells and Spermatogonial Stem Cells in vitro Culture Model

Scientific Reports ◽

10.1038/s41598-017-12195-9 ◽

2017 ◽

Vol 7 (1) ◽

Cited By ~ 9

Author(s):

Polash Chandra Karmakar ◽

Hyun-Gu Kang ◽

Yong-Hee Kim ◽

Sang-Eun Jung ◽

Md. Saidur Rahman ◽

...

Keyword(s):

Stem Cells ◽

Bisphenol A ◽

In Vitro Culture ◽

Functional Properties ◽

Germ Cells ◽

Spermatogonial Stem Cells ◽

Culture Model

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A small omnivore fish (Acheilognathus macropterus) reduces both growth and biomass of submerged macrophytes: implications for shallow lake restoration

Knowledge and Management of Aquatic Ecosystems ◽

10.1051/kmae/2020028 ◽

2020 ◽

pp. 34

Author(s):

Jinlei Yu ◽

Manli Xia ◽

Wei Zhen ◽

Hu He ◽

Ruijie Shen ◽

...

Keyword(s):

Fish Assemblages ◽

Submerged Macrophytes ◽

Myriophyllum Spicatum ◽

Nutrient Concentrations ◽

Ceratophyllum Demersum ◽

Total Biomass ◽

Relative Growth ◽

Macrophyte Community ◽

Macrophyte Species ◽

Significant Research

Transplantation of submerged macrophytes has been widely used to improve water quality in restoring shallow lakes in China. However, in some lakes, small omnivorous fish predominated the fish assemblages and fed mainly on submerged macrophytes. Despite significant research examining grazing selectivity in herbivorous fishes, macrophyte feeding preferences of small omnivorous fishes are poorly understood. We conducted a mesocosm experiment to examine the effects of a prolific small omnivorous bitterling fish Acheilognathus macropterus on the relative growth rate (RGR) and biomass of submerged macrophytes (Ceratophyllum demersum, Myriophyllum spicatum, Vallisneria denseserrulata, and Hydrilla verticillata). Our results showed that the presence of A. macropterus significantly increased nutrient concentrations (e.g. total nitrogen and total phosphorus). The RGR of C. demersum in the bitterling-present treatment was significantly lower than the controls, in the presence of other macrophyte species. Further, total biomass of the four species of macrophytes in the fish-present mesocosms was markedly lower than in the fish-absent treatment, suggesting considerable consumption of macrophytes by bitterling. Moreover, the percent biomass of V. denserrulata and H. verticillata were significantly enhanced by the presence of bitterling. Our findings suggest that A. macropterus may increase nutrient concentrations through excretion and reduce the biomass and RGR of certain submerged macrophytes which may shift macrophyte community structure via selective grazing.

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