Soil amendments inhibited the cadmium accumulation in Ligusticum striatum DC. and improved the plant growth

2021 ◽  
Author(s):  
Xian Xiao ◽  
Meng Pei ◽  
Junjie Zhou ◽  
Shuo Sun ◽  
Chengcheng Li ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Amendments ◽  
Cadmium Accumulation

The complexity of wood ash fertilization disentangled: Effects on soil pH, nutrient status, plant growth and cadmium accumulation

2021 ◽  
Vol 185 ◽  
pp. 104424
Author(s):  
Jesper Liengaard Johansen ◽  
Maiken Lundstad Nielsen ◽  
Mette Vestergård ◽  
Louise Hindborg Mortensen ◽  
Carla Cruz-Paredes ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Ph ◽  
Nutrient Status ◽  
Cadmium Accumulation ◽  
Wood Ash

Wood chip soil amendments in restored wetlands affect plant growth by reducing compaction and increasing dissolved phenolics

2019 ◽  
Vol 27 (5) ◽  
pp. 1128-1136 ◽  
Author(s):  
Evan C. Wolf ◽  
Eliška Rejmánková ◽  
David J. Cooper
Keyword(s):  
Plant Growth ◽  
Soil Amendments ◽  
Wood Chip ◽  
Restored Wetlands

scholarly journals Endophytic Bacillus megaterium BM18-2 mutated for cadmium accumulation and improving plant growth in Hybrid Pennisetum

2019 ◽  
Vol 24 ◽  
pp. e00374 ◽  
Author(s):  
Juanzi Wu ◽  
Nehal Kamal ◽  
Huanhuan Hao ◽  
Chen Qian ◽  
Zhiwei Liu ◽  
...  
Keyword(s):  
Plant Growth ◽  
Bacillus Megaterium ◽  
Cadmium Accumulation ◽  
Hybrid Pennisetum

scholarly journals Effects of Soil Amendments on Heavy Metal Immobilization and Accumulation by Maize Grown in a Multiple-Metal-Contaminated Soil and Their Potential for Safe Crop Production

Toxics ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 102
Author(s):  
Fayuan Wang ◽  
Shuqi Zhang ◽  
Peng Cheng ◽  
Shuwu Zhang ◽  
Yuhuan Sun
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Contaminated Soil ◽  
Crop Production ◽  
Metal Uptake ◽  
Soil Amendments ◽  
Heavy Metal Uptake ◽  
X Ray ◽  
Metal Immobilization ◽  
Heavy Metal Immobilization

Soil amendments have been proposed for immobilizing metallic contaminants, thus reducing their uptake by plants. For the safe production of crops in contaminated soil, there is a need to select suitable amendments that can mitigate heavy metal uptake and enhance crop yield. The present experiment compared the effects of three amendments, hydroxyapatite (HAP), organic manure (OM), and biochar (BC), on plant growth and heavy metal accumulation by maize in an acidic soil contaminated with Cd, Pb, and Zn, and their potential for safe crop production. Toxicity characteristic leaching procedure (TCLP) tests, energy dispersive X-ray spectroscopy (EDS) analysis, and X-ray diffraction (XRD) analysis were used to evaluate the effectiveness and mechanisms of heavy metal immobilization by the amendments. The results showed that shoot and root biomass was significantly increased by HAP and 1% OM, with an order of 1% HAP > 0.1% HAP > 1% OM, but not changed by 0.1% OM and BC (0.1% and 1%). HAP significantly decreased Cd, Pb, and Zn concentrations in both shoots and roots, and the effects were more pronounced at the higher doses. OM decreased the shoot Cd and Pb concentrations and root Zn concentrations, but only 1% OM decreased the shoot Zn and root Pb concentrations. BC decreased the shoot Cd and Pb concentrations, but decreased the shoot Zn and root Pb concentrations only at 1%. HAP decreased the translocation factors (TFs) of Cd, Pb, and Zn (except at the 0.1% dose). OM and BC decreased the TFs of Cd and Zn, respectively, at the 1% dose but showed no significant effects in other cases. Overall, plant P, K, Fe, and Cu nutrition was improved by HAP and 1% OM, but not by 0.1 OM and BC. Soil pH was significantly increased by HAP, 1% OM, and 1% BC, following an order of 1% HAP > 1% OM > 0.1% HAP > 1% BC. The TCLP levels for Cd, Pb, and Zn were significantly reduced by HAP, which can be partly attributed to its liming effects and the formation of sparingly soluble Cd-, Pb-, and Zn-P-containing minerals in the HAP-amended soils. To some extent, all the amendments positively influenced plant and soil traits, but HAP was the optimal one for stabilizing heavy metals, reducing heavy metal uptake, and promoting plant growth in the contaminated soil, suggesting its potential for safe crop production.

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.

Hybrid ash/biochar biocomposites as soil amendments for the alleviation of cadmium accumulation by Oryza sativa L. in a contaminated paddy field

Chemosphere ◽  
2020 ◽  
Vol 239 ◽  
pp. 124805 ◽  
Author(s):  
Sicong Lei ◽  
Yan Shi ◽  
Cong Xue ◽  
Junliang Wang ◽  
Lei Che ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Paddy Field ◽  
Oryza Sativa L ◽  
Soil Amendments ◽  
Cadmium Accumulation
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