Microcosm evaluation of the effects of an eight pharmaceutical mixture to the aquatic macrophytes Lemna gibba and Myriophyllum sibiricum

The potential of three aquatic macrophytes, Azoll caroliniana, Salvinia minima and Lemna gibba, was evaluated in this work aimed at selection of plants to be used in remediation of environments contaminated by arsenic (As). The experiments were carried out in a greenhouse during six days in pots containing Hoagland solution (¼ ionic strength) at As concentrations of 0.5; 2.5 and 5.0 mg L-1. The three species showed greater As accumulation as the concentration of the metalloid in solution increased. However, a reduction was detected in fresh and dry mass gain when the plants were exposed to high As concentrations. The macrophytes showed differences in efficiency of removal of As in solution. A. caroliniana, S. minima and L. gibba accumulated, on average, 0.130; 0.200; and 1.397 mg mDM-1, respectively, when exposed to 5.0 mg L-1 of As. The macrophytes absorbed a greater quantity of As in solution with low phosphate content. The greater As concentration in L. gibba tissues lowered the chlorophyll and carotenoid contents as shown by the high chlorosis incidence. Lemna gibba also exhibited a decrease in leaf size, with the total chlorophyll and carotenoid synthesis not being affected by As in A. caroliniana. This species exhibited purplish leaves with high concentration of anthocyanin, whose presence suggested association to phosphate deficiency. Marginal necrosis occurred on S. minima floating leaves, with the released daughter-plants not showing any visual symptoms during the treatment. The percentage of As removed from the solution decreased when the plants were exposed to high concentrations of the pollutant. Among the three species studied, only L. gibba could be considered an As hyper-accumulator. The use of this plant species for remediation of aquatic environments was shown to be limited and requires further investigation.

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Effects of herbicides on two submersed aquatic macrophytes, Potamogeton pectinatus L. and Myriophyllum sibiricum Komarov, in a prairie wetland

Environmental Pollution ◽

10.1016/s0269-7491(96)00137-6 ◽

1997 ◽

Vol 95 (2) ◽

pp. 259-268 ◽

Cited By ~ 15

Author(s):

D.J. Forsyth ◽

P.A. Martin ◽

G.G. Shaw

Keyword(s):

Aquatic Macrophytes ◽

Potamogeton Pectinatus ◽

Prairie Wetland ◽

Myriophyllum Sibiricum

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Evaluation of monochloroacetic acid (MCA) degradation and toxicity to Lemna gibba, Myriophyllum spicatum, and Myriophyllum sibiricum in aquatic microcosms

Aquatic Toxicology ◽

10.1016/s0166-445x(02)00089-9 ◽

2002 ◽

Vol 61 (3-4) ◽

pp. 251-273 ◽

Cited By ~ 22

Author(s):

Mark L. Hanson ◽

Paul K. Sibley ◽

David A. Ellis ◽

Scott A. Mabury ◽

Derek C.G. Muir ◽

...

Keyword(s):

Myriophyllum Spicatum ◽

Monochloroacetic Acid ◽

Lemna Gibba ◽

Aquatic Microcosms ◽

Myriophyllum Sibiricum

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Effects of a mixture of tetracyclines to Lemna gibba and Myriophyllum sibiricum evaluated in aquatic microcosms

Environmental Pollution ◽

10.1016/j.envpol.2005.04.021 ◽

2005 ◽

Vol 138 (3) ◽

pp. 425-442 ◽

Cited By ~ 39

Author(s):

Richard A. Brain ◽

Christian J. Wilson ◽

David J. Johnson ◽

Hans Sanderson ◽

Ketut (Jim) Bestari ◽

...

Keyword(s):

Lemna Gibba ◽

Aquatic Microcosms ◽

Myriophyllum Sibiricum

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Phytoremediation of flashlight manufacturing effluent through aquatic macrophytes

International Journal of Science Technology & Society ◽

10.18091/ijsts.v2i1-2.7539 ◽

2016 ◽

Vol 2 (1-2) ◽

Author(s):

Narendra Kumar ◽

Sangeeta Anand ◽

Sushil Kumar Bharti ◽

Dhananjay Kumar

Keyword(s):

Eichhornia Crassipes ◽

Aquatic Macrophytes ◽

Large Scale ◽

Manufacturing Industry ◽

Translocation Factor ◽

Water Concentration ◽

Toxicity Assessment ◽

Pistia Stratiotes ◽

Lemna Gibba ◽

Industry Effluent

Three aquatic macrophytes viz. Eichhornia crassipes, Pistia stratiotes and Lemna gibba were studied for their potential to remove heavy metals from Flashlight manufacturing industry effluent. Plants were exposed to 100%, 75%, 50%, 25% and 0% (distilled water) concentration of effluent for 5 weeks. Results revealed that the macrophytes under study were highly efficient in the removal of Hg, Mn, Zn and Pb. Translocation factor expressed that metals were largely retained in the roots of Pistia stratiotes and Lemna gibba while Eichhornia crassipes concentrated most of the metals in shoots. Analytical results showed that Eichhornia crassipes removed approximately 67.535, 89.30, 80.84 and 69.80% of Hg, Pb, Zn and Mn, respectively, from 100% concentrated effluent which shows its higher metals removal efficiency compared to Pistia stratiotes(65.44%, 87.109%, 70.23%, 63.242%) and Lemna gibba (71.84%, 89.074%, 70.97%, 73.97%,), respectively. These plants were also subjected to toxicity assessment and no symptoms of metal toxicity were found. Therefore, these macrophytes can be applied on the large scale treatment of waste water where volumes generated are very high and concentrations of pollutants are low.

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