DOI: 10.5061/dryad.44j0zpcnv
title: Data from: Enhanced phytoremediation of cadmium contaminated soil using chelating agents and plant growth regulators

description: The heavy metal cadmium (Cd) is a major threat to food safety and human
 health. Phytoremediation is the most widely used remediation technology,
 and how to improve the remediation efficiency of phytoremediation has
 become a key issue. In this study, we constructed an intensive
 phytoremediation technology for remediation of Cd-contaminated soil with
 biodegradable chelating agent and plant growth regulator combined with
 maize, and investigated the mechanism of this technology. The results
 showed that the best remediation effect was achieved in the treatment with
 10-6 mol/L gibberellic acid (GA3) and 6 mmol/kg aspartate diethoxysuccinic
 acid (AES) combined with maize. In this treatment, the total biomass and
 extraction efficiency of maize were 3.6 and 8.67 times higher than the
 control, respectively, and the antioxidant enzyme activities of maize were
 also increased. The soil was enriched with dominant bacterial genera that
 promote plant growth and metabolism and tolerance to heavy metal stress,
 which in turn promoted maize growth and Cd accumulation. Structural
 equation modelling results indicated a large effect of plant Cd
 concentration and plant antioxidant enzyme activity on plant Cd
 extraction. The enhanced phytoremediation technology showed good potential
 for safe use of Cd-contaminated soil.
description: # Data from: Enhanced phytoremediation of cadmium contaminated soil using
 chelating agents and plant growth regulators
 [https://doi.org/10.5061/dryad.44j0zpcnv](https://doi.org/10.5061/dryad.44j0zpcnv) ## Description of the data and file structure ### Files and variables #### File: RSOS-dataset.xlsx **Description:**  ##### ## \*\*RSOS-dataset\*\*\\\_Data \### **biomass**\\_Data *   *Treatment*: The entire experiment consisted of treatments. *   *shoot*: Aboveground biomass of plants. *   *root*: Root biomass of plants. *   *total biomass*: Total aboveground and belowground biomass of plants. \### ** Cd concentration **\\_Data *   *shoot*: Cd concentration in above-ground of plants. *   *root*: Cd concentration in roots of plants. \### ** extraction efficiency **\\_Data *   *Treatment*: The entire experiment consisted of treatments. *   * shoot Cd concentration*: Cd concentration in above-ground of plants. *   * root Cd concentration *: Cd concentration in roots of plants. *   *Above ground Cd extraction*:Total aboveground extraction of Cd by plants. *   *Concentration of Cd in the original soil*:Concentration of Cd in the soil before the experiment was done. *   *extraction efficiency* : Extraction efficiency of Cd from soil by plants. \### ** plant enzyme activity **\\_Data *   *Treatment*: The entire experiment consisted of treatments. *   *MDA*: Malondialdehyde content in plants. *   *SOD*:Superoxide dismutase content in plants. *   *CAT*: Catalase content in plants. *   *POD *:Peroxidase content in plants. \### ** soil properties**\\_Data *   *Treatment*: The entire experiment consisted of treatments. *   *pH*: pH value of the soil. *   *A_Cd*:available state Cd concentration in soil. *   *TN*:Total nitrogen content of the soil. *   *TP*:Total phosphorus content of the soil. *   *TK*: Total potassium content of the soil. \### **soil microorganisms (1)**\\_Data *   *phylum*: Classification of soil microbial bacteria at the phylum level. *   *CK、G1、GLDA、AG1、GG1、AES*: Percentage of soil microbial bacteria at each phylum level for these six treatments in the experiment. \### **soil microorganisms (2)**\\_Data *   *OTU ID*: Classification of soil microbial bacteria at the genus level. *   *CK、G1、GLDA、AG1、GG1、AES*: Percentage of soil microbial bacteria at each genus level. \### **Microbiological diversity**\\_Data *   *Treatment*: The entire experiment consisted of treatments. *   *Shannon*:Indicators of community diversity of soil microbial bacteria. *   *Ace*:Used to assess the number of OTUs in soil microbial communities. *   *Chao*: Community richness indices for soil microbial bacteria. *   *Sobs*: Richness indices used to assess soil microbial communities *   *Coverage*: The coverage rate of all sequenced samples reflect the true status of the microorganisms in the samples.