Effects of copper and cadmium on heavy metal polluted waterbody restoration by duckweed (Lemna minor)

2007 ◽  
Vol 45 (1) ◽  
pp. 62-69 ◽  
Author(s):  
Wenhua Hou ◽  
Xiao Chen ◽  
Guanling Song ◽  
Qunhui Wang ◽  
Chein Chi Chang
Keyword(s):  
Heavy Metal ◽  
Lemna Minor

scholarly journals The Duckweed, Lemna minor Modulates Heavy Metal-Induced Oxidative Stress in the Nile Tilapia, Oreochromis niloticus

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2983
Author(s):  
Fagr Kh. Abdel-Gawad ◽  
Wagdy K. B. Khalil ◽  
Samah M. Bassem ◽  
Vikas Kumar ◽  
Costantino Parisi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Heavy Metal ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Lemna Minor ◽  
Fish Growth ◽  
High Dose ◽  
Gene Expressions ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Cu And Zn

A two-fold integrated research study was conducted; firstly, to understand the effects of copper (Cu) and zinc (Zn) on the growth and oxidative stress in Nile tilapia, Oreochromis niloticus; secondly, to study the beneficial effects of the duckweed Lemna minor L. as a heavy metal remover in wastewater. Experiments were conducted in mesocosms with and without duckweed. Tilapia fingerlings were exposed to Cu (0.004 and 0.02 mg L−1) and Zn (0.5 and 1.5 mg L−1) and fish fed for four weeks. We evaluated the fish growth performance, the hepatic DNA structure using comet assay, the expression of antioxidative genes (superoxide dismutase, SOD; catalase, CAT; glutathione peroxidase, GPx and glutathione-S-transferase, GST) and GPx and GST enzymatic activity. The results showed that Zn exhibited more pronounced toxic effects than Cu. A low dose of Cu did not influence the growth whereas higher doses of Cu and Zn significantly reduced the growth rate of tilapia compared to the control, but the addition of duckweed prevented weight loss. Furthermore, in the presence of a high dose of Cu and Zn, DNA damage decreased, antioxidant gene expressions and enzymatic activities increased. In conclusion, the results suggest that duckweed and Nile tilapia can be suitable candidates in metal remediation wastewater assessment programs.

Heavy-metal (Zn, Cd) tolerance in selected clones of duck weed (Lemna minor)

1992 ◽  
Vol 146 (1-2) ◽  
pp. 271-280 ◽  
Author(s):  
R. F. M. Van Steveninck ◽  
M. E. Van Steveninck ◽  
D. R. Fernando
Keyword(s):  
Heavy Metal ◽  
Lemna Minor ◽  
Cd Tolerance ◽  
Duck Weed

Bioremediation of heavy metal contaminated medium using Lemna minor, Daphnia magna and their consortium

2017 ◽  
Vol 34 (1) ◽  
pp. 43-55 ◽  
Author(s):  
Şeyda Fikirdeşici-Ergen ◽  
Esra Üçüncü-Tunca ◽  
Murat Kaya ◽  
Evren Tunca
Keyword(s):  
Heavy Metal ◽  
Daphnia Magna ◽  
Lemna Minor

Heavy metal levels and esterase variations between metal-exposed and unexposed duckweed Lemna minor: field and laboratory studies

2004 ◽  
Vol 30 (6) ◽  
pp. 811-814 ◽  
Author(s):  
Suman Mukherjee ◽  
Swati Mukherjee ◽  
P Bhattacharyya ◽  
A.K Duttagupta
Keyword(s):  
Heavy Metal ◽  
Lemna Minor ◽  
Laboratory Studies ◽  
Metal Levels

scholarly journals Assessment of the potential of duckweed (Lemna minor L.) in treating lead-contaminated water through phytoremediation in stationary and recirculated set-ups

2019 ◽  
Vol 25 (6) ◽  
pp. 977-982 ◽  
Author(s):  
Lanel Jane A Ubuza ◽  
Palcon Cres S Padero ◽  
Charie May N Nacalaban ◽  
Jasmin T Tolentino ◽  
Dominick C Alcoran ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Lemna Minor ◽  
Physicochemical Characteristics ◽  
Contaminated Water ◽  
Water And Wastewater Treatment ◽  
Environment Friendly ◽  
Treatment Techniques ◽  
Water And Wastewater ◽  
Set Up

The problems of heavy metal contamination in water have become alarming and necessitate efficient remediation. However, conventional water and wastewater treatment techniques are considered costly, and some are even not environment-friendly. These problems trigger the idea of utilizing plants in the treatment process of metal-contaminated water. The current work investigated the potential of duckweed (<i>Lemna minor L.</i>) in treating lead-contaminated water through phytoremediation. The duckweed was used as bioaccumulator of lead (Pb) in the prepared stationary and recirculated set-ups at 3, 6, and 9 d. The physicochemical characteristics such as pH, BOD5, DO, turbidity, and temperature of the influent and effluent were compared. The highest bioaccumulation of 62.8% was achieved at 3 d in the recirculated set-up. The result of the analysis showed that duckweed has the potential in phytoremediation considering better quality effluent. The concentration of Pb in the effluent of 0.93 mg/L in the recirculated set-up with duckweed in 3 d was much lower compared to the initial concentration in the influent at 2.5 mg/L. This study demonstrated that duckweed could be a suitable plant for Pb removal from water with big implications in remediating heavy metal-contaminated water from various industries.

scholarly journals Lemna minor L.: As bioindicator of heavy metal pollution in Skadar lake: Montenegro

2015 ◽  
pp. 123-134 ◽  
Author(s):  
Vlatko Kastratovic ◽  
Zeljko Jacimovic ◽  
Dijana Djurovic ◽  
Miljan Bigovic ◽  
Sladjana Krivokapic
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Lemna Minor

Heavy-metal (Zn, Cd) tolerance in selected clones of duck weed (Lemna minor)

1993 ◽  
pp. 387-396 ◽  
Author(s):  
R. F. M. Van Steveninck ◽  
M. E. Van Steveninck ◽  
D. R. Fernando
Keyword(s):  
Heavy Metal ◽  
Lemna Minor ◽  
Cd Tolerance ◽  
Duck Weed

scholarly journals Phytoremediation of acid mine drainage using by-product of lysine fermentation

2020 ◽  
Vol 81 (7) ◽  
pp. 1507-1517
Author(s):  
Attila Nagy ◽  
Tamás Magyar ◽  
Csaba Juhász ◽  
János Tamás
Keyword(s):  
Heavy Metal ◽  
Acid Mine Drainage ◽  
Plant Species ◽  
Mine Drainage ◽  
Lemna Minor ◽  
Heavy Metal Concentration ◽  
Heavy Metal Accumulation ◽  
Complexing Agent ◽  
Acid Mine ◽  
Lysine Fermentation

Abstract The main point of this research is to assess the applicability of condensed molasses soluble (CMS), which is an organic by-product of lysine fermentation, as an environmentally friendly complexing agent in rhizofiltration of heavy metal contaminated acid mine drainage (AMD). First, the ecotoxicological properties (growth inhibition, seed germination) of CMS were examined with often applied indicator plant species such as duckweed (Lemna minor) and lettuce (Lactuca sativa) so as to define the possible applicable CMS concentration. Then the heavy metal accumulation and translocation properties of root accumulator plant species, i.e. common reed (Phragmites australis) and sedge (Carex flacca), were studied to optimize CMS concentration for rhizofiltration. Due to the CMS application, significant increase in bioaccumulation was detected in the case of every examined heavy metal (As, Cd, Cu, Pb and Zn) at the end of the experiment. Results also showed that CMS increased the heavy metal concentration in shoots, but did not affect the root accumulation characteristics of the plants. Furthermore, CMS treated plants accumulated heavy metals at higher rates in their roots compared to control. The results suggest that CMS is a viable additive and a complexing agent to aid rhizofiltration of heavy metal contaminated AMD.

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