Method for relieving toxicity of cadmium stress to hydrocotyle verticillata

A plant and growth technology is applied in the field of alleviating cadmium stress to the poison of coriander in South America, which can solve problems such as cadmium pollution and achieve the effect of promoting growth.

Inactive Publication Date: 2021-11-19
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of cadmium pollution, the invention provides a method for alleviating the poisoning of cadmium stress to South American coriander

Method used

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  • Method for relieving toxicity of cadmium stress to hydrocotyle verticillata
  • Method for relieving toxicity of cadmium stress to hydrocotyle verticillata
  • Method for relieving toxicity of cadmium stress to hydrocotyle verticillata

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Embodiment 1

[0025] A method for mitigating cadmium stress to the poisoning of South American coriander, comprising the following steps:

[0026] (1) Clean the root soil and leaf surface with tap water first to ensure that the plants will not be damaged, then rinse with deionized water for 3 times, and dry the residual water with filter paper.

[0027] (2) Selection step (1) Pre-cultivate plants with similar biomass and plant height. The culture time is 7 days. Co., Ltd.) as the medium.

[0028] (3) Transplant the plants with consistent growth in step (2) into the cadmium solution adding exogenous sulfur, and use 0.1% KMnO 4 Immerse the roots in disinfectant solution for 10 minutes, sulfur and cadmium were separated by Mg 2 SO 4 (analytical pure) and CdCl 2 2.5H 2 Add O (analytically pure) in the form of three cadmium concentration gradients, namely 1 (Cd1), 2 (Cd2), 4 (Cd4) mg L -1 , adding 200 μM L for each cadmium concentration level -1 Na 2 SO 4 , namely S200.

Embodiment 2

[0030] A method for mitigating cadmium stress to the poisoning of South American coriander, comprising the following steps:

[0031] (1) Clean the root soil and leaf surface with tap water first to ensure that the plants will not be damaged, then rinse with deionized water for 3 times, and dry the residual water with filter paper.

[0032] (2) Selection step (1) Pre-cultivate plants with similar biomass and plant height. The culture time is 7 days. Co., Ltd.) as the medium.

[0033] (3) Transplant the plants with consistent growth in step (2) into the cadmium solution adding exogenous sulfur, and use 0.1% KMnO 4 Immerse the roots in disinfectant solution for 10min, sulfur and cadmium were separated by Na 2 SO 4 (analytical pure) and CdCl 2 2.5H 2 Add O (analytically pure) in the form of three cadmium concentration gradients, namely 1 (Cd1), 2 (Cd2), 4 (Cd4) mg L -1 , adding 400 μM L to each cadmium concentration level -1 Na 2 SO 4 , namely S400.

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Abstract

The invention provides a method for relieving toxicity of cadmium stress to hydrocotyle verticillata, which comprises the following steps: selecting hydrocotyle verticillata plants which are free of scars and good in growth vigor, cleaning soil at the roots by using tap water, and then rinsing the hydrocotyle verticillata plants for multiple times by using deionized water; selecting plants with approximate biomass and plant height for pre-culture; according to the pre-culture result, selecting and transplanting plants with consistent growth vigor into a cadmium solution added with exogenous sulfur for culture; and placing the plants under natural conditions with smooth ventilation and sufficient illumination for continuous aeration culture for 24 hours. By means of the method, the toxicity of cadmium stress to the hydrocotyle verticillata can be effectively relieved, and the biomass of the hydrocotyle verticillata can be improved.

Description

technical field [0001] The invention relates to the technical field of plant growth under heavy metal stress, in particular to a method for alleviating the toxicity of cadmium stress to South American coriander. Background technique [0002] During the development of mineral resources, heavy metal pollution incidents occur from time to time, which cause serious pollution to the environment, especially to farmland and rivers. In heavy metal-polluted soil, cadmium (Cd) was 7.0% of the point exceeding the standard, accounting for the first place among inorganic pollutants. Cadmium is often associated with other minerals, and has the characteristics of easy enrichment, transshipment and migration, so it is extremely harmful to the human body, and the treatment of cadmium pollution to the environment is imminent. [0003] In the current restoration of cadmium environmental pollution, there are mainly physical methods (soil removal method, soil replacement method, deep plowing me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01G13/00
CPCA01G22/00A01G13/00
Inventor 刘可慧王志伟于方明李艺代成龙刘世玲李春岚潘于
Owner GUANGXI NORMAL UNIV
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