Impact of chelator-induced phytoextraction of cadmium on yield and ionic uptake of maize

2017 ◽  
Vol 19 (6) ◽  
pp. 505-513 ◽  
Author(s):  
Sumera Anwar ◽  
Shahbaz Khan ◽  
M. Yasin Ashraf ◽  
Ali Noman ◽  
Sara Zafar ◽  
...  
Keyword(s):  
Ionic Uptake ◽  
Induced Phytoextraction

scholarly journals Induced-phytoextraction of heavy metals from contaminated soil irrigated by industrial wastewater with Marvel of Peru (Mirabilis jalapa L.)

2011 ◽  
Vol 57 (No. 8) ◽  
pp. 364-371 ◽  
Author(s):  
Y.B. Sun ◽  
G.H. Sun ◽  
Q.X. Zhou ◽  
Y.M. Xu ◽  
L. Wang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Industrial Wastewater ◽  
Metal Uptake ◽  
Primary Objective ◽  
Shoot Biomass ◽  
Heavy Metal Uptake ◽  
Aerial Parts ◽  
Mirabilis Jalapa ◽  
Induced Phytoextraction

The primary objective of this study was to evaluate the effect of ethylene diamine tetraacetic acid (EDTA) and citric acid (CA) on Mirabilis jalapa L. growth and phytoextraction of heavy metals from the multi-metal contaminated soil. The results showed that the application of CA (5 and 8 mmol/kg) and EDTA (5 mmol/kg) increased plant growth, while when the concentration of EDTA was up to 8 mmol/kg, the shoot biomass significantly decreased relative to the control plants (P < 0.05); it suffered 48.1%, 53.1%, 58.9%, and 78.2% reduction, respectively, compared to CK, CA-5, CA-8, and EDTA-5. EDTA was more effective than CA at increasing heavy metal uptake in aerial parts of the plants, the shoot concentrations of Cd, Cu, Pb, and Zn increased by 0.55, 3.08, 3.28, and 1.0-fold in the 8 mmol/kg EDTA-treated soils relative to the treatment of 8 mmol/kg CA. The maximum of Cd, Cu, and Pb phytoextraction and remediation factor (RF) were found with 5 mmol/kg EDTA treatment. For Zn, 8 mmol/kg EDTA was most efficient in increasing Zn accumulation in aboveground of M. jalapa.

Teleost fish osmoregulation: what have we learned since August Krogh, Homer Smith, and Ancel Keys

2008 ◽  
Vol 295 (2) ◽  
pp. R704-R713 ◽  
Author(s):  
David H. Evans
Keyword(s):  
Molecular Techniques ◽  
Control Mechanisms ◽  
Teleost Fishes ◽  
Transport Mechanisms ◽  
Endocrine Control ◽  
Transport Pathways ◽  
The Past ◽  
Ionic Uptake ◽  
Nacl Secretion ◽  
Freshwater Teleosts

In the 1930s, August Krogh, Homer Smith, and Ancel Keys knew that teleost fishes were hyperosmotic to fresh water and hyposmotic to seawater, and, therefore, they were potentially salt depleted and dehydrated, respectively. Their seminal studies demonstrated that freshwater teleosts extract NaCl from the environment, while marine teleosts ingest seawater, absorb intestinal water by absorbing NaCl, and excrete the excess salt via gill transport mechanisms. During the past 70 years, their research descendents have used chemical, radioisotopic, pharmacological, cellular, and molecular techniques to further characterize the gill transport mechanisms and begin to study the signaling molecules that modulate these processes. The cellular site for these transport pathways was first described by Keys and is now known as the mitochondrion-rich cell (MRC). The model for NaCl secretion by the marine MRC is well supported, but the model for NaCl uptake by freshwater MRC is more unsettled. Importantly, these ionic uptake mechanisms also appear to be expressed in the marine gill MRC, for acid-base regulation. A large suite of potential endocrine control mechanisms have been identified, and recent evidence suggests that paracrines such as endothelin, nitric oxide, and prostaglandins might also control MRC function.

Branchial Ionic Uptake and Acid-Base Regulation in the Rainbow Trout, Salmo Gairdneri

1981 ◽  
Vol 92 (1) ◽  
pp. 289-303
Author(s):  
S. F. PERRY ◽  
M. S. HASWELL ◽  
D. J. RANDALL ◽  
A. P. FARRELL
Keyword(s):  
Rainbow Trout ◽  
Sodium Bicarbonate ◽  
Salmo Gairdneri ◽  
Hypercapnic Acidosis ◽  
Acid Base ◽  
Bathing Medium ◽  
Sodium Uptake ◽  
Chloride Uptake ◽  
Disulphonic Acid ◽  
Ionic Uptake

1. Amiloride (10−4 M) inhibited sodium uptake in rainbow trout by 78% and was associated with a pronounced acidosis and decreases in both plasma total CO2 (Tcoco2)* and [HCO3−]. 2. 4-acetamido-4′-iso-thiocyanatostilbene-2,2′ disulphonic acid (SITS) (10−4M) in the bathing medium inhibited chloride uptake by 66% and following 6 h a significant decrease in plasma [H+] and significant increases in TCOCO2 and [HCO3−] were observed. 3. Inhibition of chloride uptake (50%) with external sodium bicarbonate (12 mM) resulted in a more rapid and pronounced alkalosis than did SITS inhibition. 4. Hypercapnic acidosis had no significant effect on the rates of branchial sodium and chloride uptake. 5. Increasing the concentration of sodium in the bathing water resulted in a less pronounced acidosis and a more rapid pH recovery during hypercapnia. 6. These results are discussed with reference to the gill as an acid-base regulating structure. These findings are consistent with a gill model previously presented by Haswell, Randall & Perry (1980).

scholarly journals Effect of biodegradable chelators on induced phytoextraction of uranium- and cadmium- contaminated soil by Zebrina pendula Schnizl

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Li Chen ◽  
Dan Wang ◽  
Chan Long ◽  
Zheng-xu Cui
Keyword(s):  
Contaminated Soil ◽  
Contaminated Soils ◽  
Rank Order ◽  
Single Plant ◽  
High Concentration ◽  
Control Groups ◽  
Cd Uptake ◽  
Translocation Factors ◽  
Induced Phytoextraction ◽  
Cadmium Contaminated Soil

AbstractThis study investigated the effect of ethylenediamine-N,N′-disuccinic acid (EDDS), oxalic acid (OA), and citric acid (CA) on phytoextraction of U- and Cd-contaminated soil by Z. pendula. In this study, the biomass of tested plant inhibited significantly following treatment with the high concentration (7.5 mmol·kg−1) EDDS treatment. Maximum U and Cd concentration in the single plant was observed with the 5 mmol·kg−1 CA and 7.5 mmol·kg−1 EDDS treatment, respectively, whereas OA treatments had the lowest U and Cd uptake. The translocation factors of U and Cd reached the maximum in the 5 mmol·kg−1 EDDS. The maximum bioaccumulation of U and Cd in the single plants was 1032.14 µg and 816.87 µg following treatment with 5 mmol·kg−1 CA treatment, which was 6.60- and 1.72-fold of the control groups, respectively. Furthermore, the resultant rank order for available U and Cd content in the soil was CA > EDDS > OA (U) and EDDS > CA > OA (Cd). These results suggested that CA could greater improve the capacity of phytoextraction using Z. pendula in U- and Cd- contaminated soils.

The use of poplar during a two-year induced phytoextraction of metals from contaminated agricultural soils

2008 ◽  
Vol 151 (1) ◽  
pp. 27-38 ◽  
Author(s):  
Michael Komárek ◽  
Pavel Tlustoš ◽  
Jiřina Száková ◽  
Vladislav Chrastný
Keyword(s):  
Agricultural Soils ◽  
Induced Phytoextraction

Chelator-induced phytoextraction of zinc and copper by rice seedlings

Ecotoxicology ◽  
2014 ◽  
Vol 23 (4) ◽  
pp. 749-756 ◽  
Author(s):  
Xiao-Zhang Yu ◽  
Dun-Qiu Wang ◽  
Xue-Hong Zhang
Keyword(s):  
Rice Seedlings ◽  
Induced Phytoextraction

scholarly journals Use of phytoremediation techniques for elimination of lead from polluted soils

2021 ◽  
Vol 9 (2) ◽  
pp. 125-132
Author(s):  
Alžbeta Hegedűsová ◽  
Silvia Jakabová ◽  
Andrea Vargová ◽  
Ondrej Hegedűs ◽  
Tímea Judit Pernyeszi
Keyword(s):  
Chelating Agent ◽  
Fold Increase ◽  
Green Plant ◽  
Lead Uptake ◽  
Polluted Soils ◽  
Garden Pea ◽  
Plant Parts ◽  
Pea Roots ◽  
Hyperaccumulating Plant ◽  
Induced Phytoextraction

The effect of chelating agent – EDTA (ethylene-diamine-tetra-acetic acid) was used for induced phytoextraction to increase intensity of lead transfer from roots to aboveground parts of garden pea. Pot experiments with contaminated soil substrata (50 mg Pb.kg-1 and 100 mg Pb.kg-1) were established for experimental purposes in growth chamber. The results showed that application of 5 and 10 mmol EDTA.kg-1 to experimental variants with 100 mg Pb.kg-1 doubled the increase of lead uptake by pea roots in comparison with variants without EDTA addition, which was statistically confirmed. Intensive lead transfer was observed from roots to aboveground parts of pea after application of 5 and 10 mmol EDTA.kg-1 in variant with 50 mg Pb.kg-1 (40-fold increase), as well as in variant with 100 mg Pb.kg-1 (17-fold increase). The results showed that induced phytoextraction can improve the mobility of lead from soil to plant roots. Application of 5 mmol EDTA.kg-1 resulted to 40-fold increase of lead transfer to green plant parts, despite the fact, that garden pea does not belong to conventional metal hyperaccumulating plant species. Following the results, pea could be used for decontamination of arable soil. The optimal EDTA concentration seems to be 5 mmol.kg-1. Therefore, application of 10 mmol EDTA.kg-1 decreased root mass about 55%, which resulted to decrease the intensity of lead uptake.

Induced Phytoextraction of Mercury

2021 ◽  
pp. 1-21
Author(s):  
Anna S. Makarova ◽  
Elena Nikulina ◽  
Petr Fedotov
Keyword(s):  
Induced Phytoextraction
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