Joint Effect of Cadmium and Chlorimuron-Ethyl on Cadmium Accumulation of Wheat

2012 ◽  
Vol 518-523 ◽  
pp. 426-429
Author(s):  
Cai Xia Jin ◽  
Qi Xing Zhou ◽  
Jing Fan ◽  
Xue Ying Song
Keyword(s):  
Negative Relationship ◽  
Cadmium Accumulation ◽  
Joint Effect ◽  
Antagonistic Effect ◽  
Mature Stage ◽  
Cd Accumulation ◽  
Wheat Shoot ◽  
Chlorimuron Ethyl ◽  
Wheat Tissues ◽  
Soil Cd

The joint effects of Cd and Chlorimuron-ethyl(CE) on Cd accumulation in wheat shoot/root and SPT coefficient of Cd was carried out. Cd concentration in shoot and root increased with increasing soil Cd, but Cd concentration in shoot/root was lower than the same treatment when CE was added, and negative relationship between Cd concentration in shoot (root) and concentration of CE were significant (p<0.05 or p<0.01). There was antagonistic effect of Cd and low CE on Cd accumulation in wheat tissues. Cd concentration in shoot decreased during the period of growth, but the concentration of Cd in root increased from the elongation stage to the florescence, and then decreased from the florescence to mature stage when the concentration of soil Cd was less than 100 mg kg-1, and it decreased when the concentration of soil Cd was 100 mg kg-1. The SPT values of different growth periods decreased during the period of growth.

scholarly journals Effects of reciprocal hybridization on cadmium accumulation in F1 hybrids of Solanum diphyllum and Solanum nigrum

2020 ◽  
Vol 218 ◽  
pp. 03006
Author(s):  
Renyan Liao ◽  
LingYu Ma
Keyword(s):  
Cadmium Accumulation ◽  
Solanum Nigrum ◽  
Pot Experiment ◽  
F1 Hybrids ◽  
F1 Hybrid ◽  
Cd Accumulation ◽  
Significant Difference ◽  
Accumulation Ability ◽  
Soil Cd

A pot experiment was conducted to study the effects of reciprocal hybridization on cadmium (Cd) accumulation in F1 hybrid of Solanum diphyllum and Solanum nigrum by Cd treatment (the final soil Cd concentration was 10 mg/kg). The results showed that the Cd content of F1 hybrid was between the parents. In stems, leaves and shoots, the Cd content of DN (S. diphyllum male × S. nigrum female) and ND (S. nigrum male × S. diphyllum female) F1 hybrid increased by 14.09% and 17.34%, 8.08% and 11.14%, 9.5% and 12.04% respectively compared with S. nigrum, and decreased by 13.34% and 10.87%, 6.52% and 3.88%, 7.44% and 5.0% respectively compared with S. diphyllum, with no significant difference in roots. Therefore, the accumulation ability of Cd in F1 hybrids was improved to a certain extent compared to S. nigrum, but decreased to a certain extent compared to S. diphyllum.

scholarly journals Adsorption of Cadmium by Brassica juncea (L.) Czern. and Brassica pekinensis (Lour.) Rupr in Pot Experiment

2021 ◽  
Vol 14 (1) ◽  
pp. 429
Author(s):  
Rongrong Ying ◽  
Bing Xia ◽  
Xiaowen Zeng ◽  
Rongliang Qiu ◽  
Yetao Tang ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Contaminated Soil ◽  
Human Life ◽  
Translocation Factor ◽  
Cadmium Accumulation ◽  
Pot Experiment ◽  
Cd Accumulation ◽  
Biomass Reduction ◽  
Brassica Pekinensis ◽  
Soil Cd

Heavy metal pollution in farmland threatens human life. It is not clear whether crops can adsorb heavy metals. In this study, the cadmium accumulation and tolerance in Chinese cabbage Brassica pekinensis (cv. Xiaoza-56) and the known Cd-accumulator Brassica juncea in hydroponics and pot experiment were investigated. Furthermore, we evaluated their potential on the phytoextraction of Cd-contaminated soil. The hydroponics with 1–50 μM Cd concentrations showed that both B. juncea and B. pekinensis had high Cd accumulation and tolerance with translocation factor closed to 1 at Cd levels < 25 μM. The pot study conducted with 5 to 100 mg Cd kg−1 soil indicated that B. juncea showed less tolerance and accumulation to Cd than B. pekinensis, especially at higher Cd levels. The bioconcentration factor was much higher than 1 in both B. juncea and B. pekinensis grown in <40 mg Cd kg−1 soil without showing biomass reduction. In the model evaluation, the ability of B. juncea and B. pekinensis to reduce the initial soil Cd concentration of 20 and 5 mg kg−1 to specific targets with a lower or higher biomass of 4 or 20 t ha−1, respectively. The above results indicate that B. juncea and B. pekinensis (cv. Xiaoza-56), which the latter is a better candidate for Cd phytoextraction in moderated Cd-contaminated soil. The results provide a reference for Cd pollution control.

scholarly journals Comparison of Joint Effect of Acute and Chronic Toxicity for Combined Assessment of Heavy Metals on Photobacterium sp.NAA-MIE

2021 ◽  
Vol 18 (12) ◽  
pp. 6644
Author(s):  
Nur Adila Adnan ◽  
Mohd Izuan Effendi Halmi ◽  
Siti Salwa Abd Gani ◽  
Uswatun Hasanah Zaidan ◽  
Mohd Yunus Abd Shukor
Keyword(s):  
Heavy Metals ◽  
Chronic Toxicity ◽  
Mixture Toxicity ◽  
Joint Effect ◽  
Antagonistic Effect ◽  
Acute Test ◽  
Acute And Chronic Toxicity ◽  
Toxicological Studies ◽  
Luminescence Inhibition ◽  
Toxicity Unit

Predicting the crucial effect of single metal pollutants against the aquatic ecosystem has been highly debatable for decades. However, dealing with complex metal mixtures management in toxicological studies creates a challenge, as heavy metals may evoke greater toxicity on interactions with other constituents rather than individually low acting concentrations. Moreover, the toxicity mechanisms are different between short term and long term exposure of the metal toxicant. In this study, acute and chronic toxicity based on luminescence inhibition assay using newly isolated Photobacterium sp.NAA-MIE as the indicator are presented. Photobacterium sp.NAA-MIE was exposed to the mixture at a predetermined ratio of 1:1. TU (Toxicity Unit) and MTI (Mixture Toxic Index) approach presented the mixture toxicity of Hg2+ + Ag+, Hg2+ + Cu2+, Ag+ + Cu2+, Hg2+ + Ag+ + Cu2+, and Cd2+ + Cu2+ showed antagonistic effect over acute and chronic test. Binary mixture of Cu2+ + Zn2+ was observed to show additive effect at acute test and antagonistic effect at chronic test while mixture of Ni2+ + Zn2+ showing antagonistic effect during acute test and synergistic effect during chronic test. Thus, the strain is suitable and their use as bioassay to predict the risk assessment of heavy metal under acute toxicity without abandoning the advantage of chronic toxicity extrapolation.

scholarly journals Influence of elevated content of cadmium and arsenic in diet containing feeding yeast on organisms of rats

2009 ◽  
Vol 54 (No. 1) ◽  
pp. 1-9 ◽  
Author(s):  
J. Száková ◽  
V. Zídek ◽  
D. Miholová
Keyword(s):  
Sodium Arsenite ◽  
Cadmium Accumulation ◽  
Yeast Cells ◽  
Male Rats ◽  
Arsenic Content ◽  
Cadmium Content ◽  
Cd Accumulation ◽  
Experimental Animals ◽  
Natural Level ◽  
Liver And Kidney

The influence of elevated cadmium content in diet on the content of this element in liver, kidney and testes of 68 male rats was studied in dependence on the chemical form of applied cadmium (as inorganic salt – CdCl<sub>2</sub> and organically bound in yeast cells); the influence of elevated arsenic content (as NaAsO<sub>2</sub>) in diet on its content in the same organs was also investigated. The interactions between arsenic and cadmium in the above-mentioned organs were studied. The addition of cadmium to the diet of rats significantly (<I>P</I> < 0.05) increased cadmium content in several organs. The addition of yeast containing the natural level of Cd increased the content of cadmium in liver and kidney of experimental animals significantly (<I>P</I> < 0.05). A significantly (<I>P</I> < 0.05) increased cadmium accumulation in organs was observed after the addition of Cd as CdCl<sub>2</sub>, compared with the addition of Cd as organically bound Cd in yeast cells. At the same time, the addition of yeasts containing the natural level of Cd decreased the Cd accumulation applied as CdCl2 in the examined organs. The addition of sodium arsenite to the diet of rats led to a significantly (<I>P</I> < 0.05) increased arsenic content in all the analyzed organs. The addition of yeasts to the diet increased arsenic content in liver and at the same time suppressed its content in kidneys of experimental animals. The interaction between arsenic and cadmium applied simultaneously was evident. The addition of As to the diet decreased the accumulation of Cd in kidney and increased its accumulation in testes. The addition of Cd to the diet increased arsenic content in liver and kidney and decreased its content in testes.

scholarly journals Selenium Enhances Cadmium Accumulation Capability in Two Mustard Family Species—Brassica napus and B. juncea

Plants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 904 ◽  
Author(s):  
Zhong-Wei Zhang ◽  
Yi-Ying Dong ◽  
Ling-Yang Feng ◽  
Zong-Lin Deng ◽  
Qiang Xu ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Brassica Juncea ◽  
Brassica Species ◽  
Dry Weight ◽  
Cadmium Accumulation ◽  
Cd Accumulation ◽  
Cd Toxicity ◽  
Valence States ◽  
Early Seedling ◽  
High Level

Oilseed rape (Brassica napus) is a Cadmium (Cd) hyperaccumulator. However, high-level Cd at the early seedling stage seriously arrests the growth of rape, which limits its applications. Brassica juncea had higher Cd accumulation capacity, but its biomass was lower, also limiting its applications. Previous studies have confirmed that Selenium (Se) can alleviate Cd toxicity. However, the regulatory mechanism of Se in different valence states of Cd accumulation was unclear. In this study, we investigated the ameliorating effects of three Se valence states, Na2SeO4 [Se(VI)], Na2SeO3 [Se(IV)] and Se-Met [Se(II)], to Cd toxicity by physiological and biochemical approaches in hydroponically-cultured Brassica juncea and Brassica napus seedlings. Although Se treatments slightly inhibited seedling Cd concentration, it tripled or quadrupled the Cd accumulation level per plant, because dry weight increased about four times more with Se and Cd application than with Cd treatment alone. Among the different valence states of Se, Se(II) had the most marked effect on reducing Cd toxicity as evidenced by decreased growth inhibition and Cd content. The application of Se(II) was effective in reducing Cd-induced reactive oxygen species accumulation, and promoted the antioxidant enzyme activity and photosynthesis of both Brassica species. In addition, Se(II) treatment increased the concentrations of Cd in the cell wall and soluble fractions, but the Cd concentration in the organelle part was reduced.

scholarly journals Reducing Cadmium Accumulation in Plants: Structure–Function Relations and Tissue-Specific Operation of Transporters in the Spotlight

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 223 ◽  
Author(s):  
Xin Huang ◽  
Songpo Duan ◽  
Qi Wu ◽  
Min Yu ◽  
Sergey Shabala
Keyword(s):  
Structure Function ◽  
Current Knowledge ◽  
Cadmium Accumulation ◽  
Major Focus ◽  
Phloem Tissue ◽  
Cd Uptake ◽  
Major Health ◽  
Cd Accumulation ◽  
Tissue Specific

Cadmium (Cd) is present in many soils and, when entering the food chain, represents a major health threat to humans. Reducing Cd accumulation in plants is complicated by the fact that most known Cd transporters also operate in the transport of essential nutrients such as Zn, Fe, Mn, or Cu. This work summarizes the current knowledge of mechanisms mediating Cd uptake, radial transport, and translocation within the plant. It is concluded that real progress in the field may be only achieved if the transport of Cd and the above beneficial micronutrients is uncoupled, and we discuss the possible ways of achieving this goal. Accordingly, we suggest that the major focus of research in the field should be on the structure–function relations of various transporter isoforms and the functional assessment of their tissue-specific operation. Of specific importance are two tissues. The first one is a xylem parenchyma in plant roots; a major “controller” of Cd loading into the xylem and its transport to the shoot. The second one is a phloem tissue that operates in the last step of a metal transport. Another promising and currently underexplored avenue is to understand the role of non-selective cation channels in Cd uptake and reveal mechanisms of their regulation.

Studies on the Mechanism of Cadmium Accumulation in Tagetes erecta L

2010 ◽  
Vol 113-116 ◽  
pp. 211-217
Author(s):  
Yin Qiu Zhang ◽  
Pei Dong Tai ◽  
Pei Jun Li ◽  
Qing Zhao ◽  
Dian Bo Dong
Keyword(s):  
Protein Synthesis ◽  
Plant Growth ◽  
Growth Inhibitor ◽  
Cadmium Accumulation ◽  
Protein Synthesis Inhibitor ◽  
Tagetes Erecta ◽  
Synthesis Inhibitor ◽  
Cd Accumulation ◽  
Tagetes Erecta L ◽  
Cell Division Inhibitor

Hydroponic experiments were carried out to study the effects of cell division inhibitor (Maleic hydrazide MH) and protein synthesis inhibitor（Cycloheximide CHI）on Cd accumulation in Tagetes erecta L and their possible mechanisms. Seedlings were exposed to 4 mmol L-1 MH or 3 µmol L-1 CHI in 0.1 mg L-1 Cd-containing solution for 3 days. After treatment, the Cd content in leaves was significantly (P<0.05) reduced under MH or CHI treatment, which was consistent with the decreased soluble protein contents in leaves, suggesting that protein synthesis plays a role in Cd accumulation in leaves of Tagetes erecta L. Both of the plant growth inhibitors led to increased Cd contents in roots compared with the control, corresponding with increased GSH, Cys or γEC content under MH or CHI treatment, indicating that those S-containing compounds may be related to the increased Cd content in roots under the plant growth inhibitor treatments. On the other hand, the two inhibitors increased the citric acid content in all the tissues of Tagetes erecta L except for that in leaves under CHI treatment. All the results suggest that protein synthesis may be responsible for Cd accumulation in leaves of Tagetes erecta L, while the S-containing compounds and organic acids are associated with Cd absorption in roots of Tagetes erecta L.

Effect of Environmental Factors on Cd Accumulation of Tagetes erecta L.

2011 ◽  
Vol 71-78 ◽  
pp. 149-155
Author(s):  
Sha Sha Fu ◽  
Xin Fa Xu ◽  
Rong Fang Li ◽  
Pei Dong Tai
Keyword(s):  
Transpiration Rate ◽  
Cadmium Accumulation ◽  
Hydroponic Culture ◽  
Effect Of Temperature ◽  
Nutrient Level ◽  
Tagetes Erecta ◽  
Nutrient Element ◽  
Sulfur Deficiency ◽  
Culture Experiment ◽  
Cd Accumulation

A hydroponic culture experiment was conducted to study the effect of temperature and nutrient level on Cd accumulation inTagetes erectaL.. In the first experiment, shoot Cd accumulation and transpiration rate at different temperature was determined. Cd accumulation was lower with higher transpiration rate at 35°C than that of 25°C or 15°C with lower transpiration rate. In the other experiment, cadmium accumulation of plants varies significantly under the condition of different nutrient supplication. Contents of Cd in roots were not high, but the contents of Cd in shoots were the highest when plants were cultivated in 0.05-fold Hoagland’s solution. Roots Cd accumulation decreased as the concentration of single nutrient element (N, P, S) decrease or absence, and shoots Cd accumulation decrease in the condition of sulfur deficiency and sulfur absence. It was shown that transpiration is not the primary factor affecting Cd accumulation inTagetes erectaL, but growth rate of plants has certain correlation with Cd accumulation; contents of Cd in roots are most affected by the supplication of nutrient elements, yet shoots accumulation is relatively lagging behind; different nutrient element has some different effect on Cd accumulation, and the effects of nitrogen and sulfur on the shoots Cd accumulation are the greatest.

Cadmium accumulation and apoplastic and symplastic transport in Boehmeria nivea (L.) Gaudich on cadmium-contaminated soil with the addition of EDTA or NTA

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47584-47591 ◽  
Author(s):  
Yicheng Yin ◽  
Yaqin Wang ◽  
Yunguo Liu ◽  
Guangming Zeng ◽  
Xinjiang Hu ◽  
...  
Keyword(s):  
Plant Species ◽  
Contaminated Soil ◽  
Cadmium Accumulation ◽  
Nitrilotriacetic Acid ◽  
Ethylene Diamine ◽  
Cd Accumulation ◽  
Symplastic Transport ◽  
Boehmeria Nivea ◽  
Tolerant Plant ◽  
Cadmium Contaminated Soil

A Cd-tolerant plant species named Boehmeria nivea (L.) Gaudich (ramie) was applied to study its Cd accumulation and translocation mechanisms with the addition of ethylene diamine tetracetic acid (EDTA) or nitrilotriacetic acid (NTA).

scholarly journals Soil cadmium extraction in Chinese cabbage and cabbage intercropping

2019 ◽  
Vol 49 (11) ◽  
Author(s):  
Jiayue Wan ◽  
Hexigeduleng Bao ◽  
Lihong Huang ◽  
Yanfei Ding ◽  
Zhixiang Chen ◽  
...  
Keyword(s):  
Chinese Cabbage ◽  
Enzyme Activities ◽  
Field Experiments ◽  
Soil Enzyme ◽  
Soil Enzyme Activities ◽  
System Effect ◽  
Cultivation System ◽  
Cd Accumulation ◽  
Soil Cadmium ◽  
Soil Cd

ABSTRACT: Toxic metals contamination of soil has become a serious problem in recent years. In this study, Chinese cabbage (a relatively high-accumulator of cadmium (Cd)) and cabbage (a relatively low-accumulator of Cd) were cultured in monoculture and in intercropping in the Cd-contaminated soil, to evaluate the effect of intercropping on the alteration of Cd extraction. Both the pot experiments and field experiments indicated that intercropping increased the Cd extraction by Chinese cabbage and decreased the Cd extraction by cabbage. Thus, Cd extraction was advanced while safe production was obtained. Further pot experiment was conducted to investigate the alterations of soil Cd fractions, soil pH, and soil enzyme activities to reveal their possible relationship with Cd extraction between different planting patterns. Results revealed that three individual Chinese cabbages in one intercropping pot played the same effect on alteration of these factors as six individual Chinese cabbages in one monoculture pot. The intercropping increased Cd extraction by Chinese cabbage and decreased Cd extraction by cabbage, probably by influencing mechanisms such as soil enzyme activities (especially the urease activity) in the cultivation system. Effect of intercropping on Cd accumulation is an important issue in cultivation of vegetables in potentially contaminated land.

Sign in / Sign up

Export Citation Format

Share Document