Select

Effects of Exogenous Nitric Oxide on Seed Germination，Seedling Growth and Antioxidant Characteristics of Lettuce under Cadmium Stress

XIONG Mingguo

Journal of Henan Agricultural Sciences 2021, 50 (10): 109-115. DOI: 10.15933/j.cnki.1004-3268.2021.10.014

Abstract （225）

PDF （2769KB）（126）

Save

In order to explore the mitigation effects of exogenous NO on seed germination and seedling growth of lettuce under cadmium（Cd）stress，the effects of exogenous sodium nitroprusside（SNP，NO donor）with different concentrations（100，150，200，250 μmol/L）on seed germination，seedling growth and antioxidant properties of lettuce under 100 μmol/L Cd stress were studied. The results showed that exogenous NO had no significant effect on lettuce seed germination rate and germination potential under Cd stress，but generally significantly improved lettuce seedling growth，chlorophyll content and activities of peroxidase（POD），catalase（CAT）and superoxide dismutase（SOD），and significantly decreased malondialdehyde（MDA）content. The treatment with 250 μmol/L SNP had the best effect under Cd stress，and POD，CAT，SOD activities and chlorophyll content significantly increased by 85.00%，81.20%，63.27% and 155.63% respectively. Overall，exogenous NO could mitigate the damage of lettuce caused by Cd，and 250 μmol/L SNP had the best effect.

Table and Figures | Reference | Related Articles | Metrics

Select

Research Progress on Present Situation of Heavy Metal Cadmium Pollution and Strategies to Reduce Cadmium in Ligusticum chuanxiong

LIAO Xuemei, CHEN Yuanyuan, TAO Shan, SHA Xiufen, WU Yu, XU Zhengjun, ZHANG Chao, PENG Fang

Journal of Henan Agricultural Sciences 2020, 49 (10): 1-11. DOI: 10.15933/j.cnki.1004-3268.2020.10.001

Abstract （163）

PDF （1250KB）（348）

Save

Ligusticum chuanxiong Hort.is a famous Dao-di herb in Sichuan,due to its high concentration of cadmium,the safety and effectiveness of its medicinal quality have attracted much attention.How to reduce the cadmium content in the Ligusticum chuanxiong Hort.has became one of the keys to the development of the Ligusticum chuanxiong industry.The paper described the cadmium pollution situation of Ligusticum chuanxiong and the law of cadmium absorption and accumulation,and then emphatically analyzed the influence factors of cadmium pollution of Ligusticum chuanxiong Hort.and the measures to reduce the cadmium content.Under the condition that the soil remediation technology cannt realize the production of Ligusticum chuanxiong safely,in a short time,suggesting that the cultivar of Ligusticum chuanxiong with low concentration of cadmium can be selected through the combination of molecular technology and radiation mutagenesis technology,hoping to provide reference for solving the problem of heavy metal pollution caused by Ligusticum chuanxiong.

Related Articles | Metrics

Select

The Comparative Study on Cadmium Accumulation Characteristics of Different Cowpea Materials

XIANG Juan, PAN Shaokun, WU Chuanxiu, WU Caifang, LU Ronghai, LIN Lijin, CHEN Ling

Journal of Henan Agricultural Sciences 2020, 49 (4): 114-119. DOI: 10.15933/j.cnki.1004-3268.2020.04.016

Abstract （131）

PDF （1099KB）（210）

Save

In order to study the differences of absorption and accumulation characteristics of heavy metal cadmium(Cd) in different cowpea materials,a preliminary pot experiment was conducted using 12 cowpea materials in Cd contaminated soil.The results showed that, under Cd stress, the biomass of cowpea HF1013-25-2-1-1 in seedling stage was significantly higher than that of other cowpea materials,and its Cd content was also higher.For 7104 in seedling stage,the biomass above ground was the lowest and Cd content was the highest,and the biomass above ground of other cowpea materials was between HF1013-25-2-1-1 and 7104.When cowpeas matured,the first four cowpea materials with high pod biomass were:FA black-black-3-1-green pod>15279>17300>HF1013-25-2-1-1,while the pod biomass of 15282-1 was significantly lower than that of other cowpea materials,and other materials were between FA black-black-3-1-green pod and 15282-1.Cowpea 7104 had the lowest Cd content in pods,and except 7104,there was no significant difference in Cd content of pods among 11 other cowpea materials.Therefore,cowpea FA black-black-3-1-green pod and 15279 with high pod biomass and low Cd content can be given preference to plant in the Cd-polluted areas.

Project Articles