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Ren K, Yang X, Li J, Jin H, Gu K, Chen Y, Liu M, Luo Y, Jiang Y. Alleviating the adverse effects of Cd-Pb contamination through the application of silicon fertilizer: Enhancing soil microbial diversity and mitigating heavy metal contamination. CHEMOSPHERE 2024; 352:141414. [PMID: 38336042 DOI: 10.1016/j.chemosphere.2024.141414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
The use of silicon fertilizer (SF) as a means of remediating cadmium (Cd) and lead (Pb) pollution has proven to be beneficial. However, the mechanism via which SF enhances soil quality and crop productivity under Cd- and Pb-contaminated soil (S) remains unclear. This study investigated the impacts of chemical fertilizer, mineral SF (MSF), and organic SF (OSF) on microbial community structure, activity of nutrient acquisition enzymes, and growth of tobacco in the presence of S condition. SF significantly reduced the contents of Cd and Pb in soil under S condition by 6.92-42.43% and increased plant height and leaf area by 15.27-81.77%. Moreover, the use of SF was observed to increase the efficiency of soil carbon and phosphorus cycling under S condition by 6.88-23.08%. Concurrently, SF was found to play a crucial role in facilitating the establishment of a complex, efficient, and interdependent molecular ecological network among soil microorganisms. In this context, Actinobacteriota, Bacteroidota, Ascomycota, and Basidiomycota were observed to be integral components of this network. SF was found to have a substantial positive impact on the metabolic functions and organismal systems of soil microorganisms. Moreover, the combined utilization of the Mantel test and partial least squares path model provided empirical evidence supporting the assertion that the administration of SF had a positive impact on both soil nutrient acquisition enzyme activity and tobacco growth, which was attributed to the enhancement of soil microbial diversity resulting from the application of SF. Furthermore, compared with MSF, OSF has advantages in reducing soil Pb and Cd content, promoting tobacco agronomic traits, increasing the number of key microbial communities, and maintaining the structural stability of microbial networks. The aforementioned findings, therefore, suggest that the OSF played a pivotal role in alleviating the adverse impacts of S, thereby demonstrating its efficacy in this particular process.
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Affiliation(s)
- Ke Ren
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China; College of Agronomy and Biotechnology, Southwest University / Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, 400715, China
| | - Xiongwei Yang
- College of Landscape Architecture, Southwest Forestry University, Kunming, 650224, China
| | - Jian Li
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Hongyan Jin
- College of Landscape Architecture, Southwest Forestry University, Kunming, 650224, China
| | - Kaiyuan Gu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China; College of Agronomy and Biotechnology, Southwest University / Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, 400715, China
| | - Yi Chen
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China
| | - Ming Liu
- College of Agronomy and Biotechnology, Southwest University / Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, 400715, China
| | - Yigui Luo
- College of Tobacco Science, Yunnan Agricultural University, Kunming, 650031, China.
| | - Yonglei Jiang
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
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Yang JS, Ahmed RI, Liu H, Sheng S, Xiao W, Hu R, Dai Y. Differential absorption of cadmium and zinc by tobacco plants: Role of apoplastic pathway. Biochem Biophys Rep 2024; 37:101641. [PMID: 38288283 PMCID: PMC10823060 DOI: 10.1016/j.bbrep.2024.101641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/19/2023] [Accepted: 01/06/2024] [Indexed: 01/31/2024] Open
Abstract
Cadmium (Cd) contamination presents a significant challenge in global agriculture. This study explores the efficacy of chemical induction, specifically using sodium chloride (NaCl), to limit Cd uptake in tobacco (Nicotiana tabacum) and assesses its impact on essential divalent metal ions (DMIs). We conducted a comprehensive analysis encompassing ion absorption, root histology, and biochemistry to understand the influence of this method. Our results revealed that NaCl induction led to a notable 30 % decrease in Cd absorption, while maintaining minimal impact on zinc (Zn) uptake. Intriguingly, the absence of essential DMIs, such as calcium (Ca), magnesium (Mg), and Zn, was found to diminish the plant's capacity to absorb Cd. Furthermore, moderate NaCl induction resulted in an increased diameter of the root stele and enhanced lignin content, indicating a restriction of Cd absorption through the apoplastic pathway. Conversely, a compensatory absorption mechanism via the symplastic pathway appeared to be activated in the absence of essential elements. These findings highlight the potential of chemical induction as a strategy to mitigate agricultural Cd risks, offering insights into the complex interplay between plant ion transport pathways and metal uptake regulation.
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Affiliation(s)
- Jia-Shuo Yang
- China Tobacco Central South Agricultural Experimental Station, Furong Road No. 628, Changsha, 410004, China
| | - Rana Imtiaz Ahmed
- Chinese Academy of Agricultural Sciences, Institute of Tobacco Research, Keyuanjingsi Road No. 11, Qingdao, 266101, China
| | - Haiwei Liu
- Chinese Academy of Agricultural Sciences, Institute of Tobacco Research, Keyuanjingsi Road No. 11, Qingdao, 266101, China
| | - Song Sheng
- Central South University of Forestry and Technology, Shaoshan Road No. 498, Changsha, 410004, China
| | - Wenfeng Xiao
- China Tobacco Central South Agricultural Experimental Station, Furong Road No. 628, Changsha, 410004, China
| | - Risheng Hu
- China Tobacco Central South Agricultural Experimental Station, Furong Road No. 628, Changsha, 410004, China
| | - Yanjiao Dai
- Hunan Academy of Agricultural Science, Yuanda Road No. 892, Changsha, 410125, China
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Xi W, Ping Y, Cai H, Tan Q, Liu C, Shen J, Zhang Y. Effects of Soil Properties on Pb, Cd, and Cu Contents in Tobacco Leaves of Longyan, China, and Their Prediction Models. Int J Anal Chem 2023; 2023:9216995. [PMID: 38178991 PMCID: PMC10766475 DOI: 10.1155/2023/9216995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/28/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024] Open
Abstract
Longyan City in Fujian Province is one of China's top-quality tobacco-producing areas and plays an essential role in local economic development. To determine the correlation between heavy metal content in tobacco leaves and soil factors, soil physical and chemical properties and heavy metal contents of lead, cadmium, and copper in tobacco leaves were measured and analyzed by the correlation regression method. The content of lead, cadmium, and copper in soil was determined using hydrochloric acid extraction-AAS and graphite furnace atomic absorption spectrometry. Inductively coupled plasma-mass spectrometry was used to determine heavy metal in tobacco leaf. The findings revealed that the average concentrations of lead, cadmium, and copper in the soil were 12.1, 0.092, and 3.88 mg/kg, respectively. In contrast, the average levels of lead, cadmium, and copper in tobacco leaves were 2.33, 4.89, and 4.35 mg/kg, respectively. The cadmium enrichment coefficient of 54.3 was higher than lead and copper, indicating a greater health risk. Soil pH value was negatively correlated with lead content in tobacco leaf, while potassium and phosphorus nutrient levels were negatively correlated with copper content. In contrast, a positive correlation was established between the presence of organic matter with cadmium content in tobacco leaves. The prediction models of lead, cadmium, and copper in tobacco leaves can be expressed by the regression equation corresponding to each heavy metal as follows: YPb=2.33 - 0.005∗ XK+0.007∗XN - 0.271∗XpH+0.065∗XPb (R2 = 0.787), YCd=1.55+0.012∗XOM - 0.014∗XCu+34.6∗XCd (R2 = 0.891), and YCu=4.64 - 0.029∗XP - 0.007∗XK+0.245∗XCu (R2 = 0.724), respectively. The prediction models above provide an effective predictive tool for assessing heavy metal risk in tobacco leaves using soil properties in the study area.
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Affiliation(s)
- Wei Xi
- College of Primary Education, Zhengzhou Normal University, Zhengzhou 450044, China
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - YuanYe Ping
- College of Primary Education, Zhengzhou Normal University, Zhengzhou 450044, China
| | - HaiYang Cai
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qian Tan
- Guangzhou Lanshen Technology Co., Ltd., Guangzhou 510000, China
| | - Chaoyang Liu
- College of Primary Education, Zhengzhou Normal University, Zhengzhou 450044, China
| | - Junru Shen
- College of Primary Education, Zhengzhou Normal University, Zhengzhou 450044, China
| | - YaWen Zhang
- College of Primary Education, Zhengzhou Normal University, Zhengzhou 450044, China
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McGraw KE, Nigra AE, Klett J, Sobel M, Oelsner EC, Navas-Acien A, Hu X, Sanchez TR. Blood and Urinary Metal Levels among Exclusive Marijuana Users in NHANES (2005-2018). ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:87019. [PMID: 37646523 PMCID: PMC10467359 DOI: 10.1289/ehp12074] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 05/19/2023] [Accepted: 07/19/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Marijuana is the third most used drug in the world. OBJECTIVES Because the cannabis plant is a known scavenger of metals, we hypothesized that individuals who use marijuana will have higher metal biomarker levels compared with those who do not use. METHODS We combined data from the National Health and Nutrition Examination Survey (2005-2018) for n = 7,254 participants, classified by use: non-marijuana/non-tobacco, exclusive marijuana, exclusive tobacco, and dual marijuana and tobacco use. Five metals were measured in blood and 16 in urine using inductively coupled plasma mass spectrometry; urinary metals were adjusted for urinary creatinine. RESULTS Participants reporting exclusive marijuana use compared with non-marijuana/non-tobacco use had statistically significantly higher mean cadmium levels in blood [1.22 μ g / L (95% CI: 1.11, 1.34); p < 0.001 ] and urine [1.18 μ g / g (95% CI: 1.0, 1.31); p = 0.004 ] and statistically significantly higher mean lead levels in blood [1.27 μ g / dL (95% CI: 1.07, 1.50); p = 0.006 ] and urine [1.21 μ g / g (95% CI: - 0.006 , 1.50); p = 0.058 ]. DISCUSSION Our results suggest marijuana is a source of cadmium and lead exposure. Research regarding cannabis use and cannabis contaminants, particularly metals, should be conducted to address public health concerns related to the growing number of cannabis users. https://doi.org/10.1289/EHP12074.
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Affiliation(s)
- Katlyn E. McGraw
- Department of Environmental Health Science, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Anne E. Nigra
- Department of Environmental Health Science, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Joshua Klett
- Department of Environmental Health Science, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Marisa Sobel
- Department of Environmental Health Science, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Elizabeth C. Oelsner
- Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Ana Navas-Acien
- Department of Environmental Health Science, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Xin Hu
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Tiffany R. Sanchez
- Department of Environmental Health Science, Columbia University Mailman School of Public Health, New York, New York, USA
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Liu H, Zhang Y, Wang H, Zhang B, He Y, Wang H, Zhu Y, Holm PE, Shi Y. Comparing cadmium uptake kinetics, xylem translocation, chemical forms, and subcellular distribution of two tobacco (Nicotiana tabacum L.) cultivars. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 254:114738. [PMID: 36905848 DOI: 10.1016/j.ecoenv.2023.114738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Tobacco (Nicotiana tabacum L.) is a potential phytoremediator that can reduce soil cadmium (Cd) contamination. Pot and hydroponic experiments were conducted to investigate the difference in absorption kinetics, translocation patterns, accumulation capacity, and extraction amounts between two leading tobacco cultivars in China. We studied the chemical forms and subcellular distribution of Cd in the plants to understand the diversity of the detoxification mechanism of the cultivars. The concentration-dependent kinetics of Cd accumulation in leaves, stems, roots, and xylem sap for cultivars Zhongyan 100 (ZY100) and K326, fitted well with the Michaelis-Menten equation. K326 exhibited high biomass, Cd tolerance, Cd translocation, and phytoextraction abilities. The acetic acid, sodium chloride, and water-extractable fractions accounted for > 90% of Cd in all ZY100 tissues but only in K326 roots and stems. Moreover, the acetic acid and NaCl fractions were the predominant storage forms, while the water fraction was the transport form. The ethanol fraction also contributed significantly to Cd storage in K326 leaves. As the Cd treatment increased, more NaCl and water fractions were found in K326 leaves, while only NaCl fractions increased in ZY100 leaves. For subcellular distribution, > 93% Cd proportions were primarily stored in both cultivars' soluble or cell wall fraction. The proportion of Cd in the cell wall fraction of ZY100 roots was less than that of K326, while that proportion in the soluble fraction in ZY100 leaves was higher than in K326 leaves. These findings demonstrate that Cd accumulation patterns, detoxification, and storage strategies differ between the cultivars, providing a deeper understanding of Cd tolerance and accumulation mechanism in tobacco plants. It also guides the screening of germplasm resources or gene modification to improve the Cd phytoextraction efficiency of tobacco.
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Affiliation(s)
- Haiwei Liu
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yan Zhang
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Haiyun Wang
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Biao Zhang
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Yuan He
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Haohao Wang
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Yingying Zhu
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Peter E Holm
- Department of Plant and Environmental Sciences, University of Copenhagen, DK-1871 Frederiksberg C, Denmark; Sino-Danish Center for Education and Research (SDC), Denmark
| | - Yi Shi
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
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6
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Guo Y, Xiao Q, Zhao X, Wu Z, Dai Z, Zhang M, Qiu C, Long S, Wang Y. Phytoremediation with kenaf (Hibiscus cannabinus L.) for cadmium-contaminated paddy soil in southern China: translocation, uptake, and assessment of cultivars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:1244-1252. [PMID: 35913693 DOI: 10.1007/s11356-022-22111-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Kenaf (Hibiscus cannabinus L.) is suitable for growing in heavy metal-polluted soil for non-food purposes and can be used as a potential crop to remediate heavy metal-contaminated soil. The main objective of this study was to investigate kenaf phytoextraction of cadmium (Cd), including uptake, translocation, and accumulation differences in tissues among kenaf cultivars. A field experiment was conducted in a Cd contaminated paddy field in southern China area with 13 kenaf cultivars in 2015 and 2016. Agronomic performance, Cd concentrations in plant tissues (root, xylem, and phloem), and biomass of different tissues of each cultivar were measured and evaluated. Significant differences in Cd concentrations and accumulation among tissues and cultivars were observed. The phloem had the highest Cd accumulation and transfer capability compared with the roots and xylem. Approximately 35 ~ 65 g of Cd could be taken up by the aerial parts of different kenaf cultivars within every hectare of soil. The percentage of Cd uptake by the phloem ranged from 47 to 61% and by the xylem ranged from 38 to 53%. By evaluating the agronomic traits and Cd bioaccumulation capacity, Fuhong 952, Fuhong 992, and Fuhong R1 were regarded as Cd accumulators for the phytoremediation of Cd-contaminated soil. Our study clearly demonstrated that a significant level of Cd in the soil was taken up through the phytoremediation with kenaf. In addition, harmless utilization of kenaf planting in Cd-contaminated paddy soil was discussed.
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Affiliation(s)
- Yuan Guo
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Qingmei Xiao
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Xinlin Zhao
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Zhimin Wu
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Zhigang Dai
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Minji Zhang
- Shanghai Zhongwei Biochemistry Co., Ltd, Shanghai, 201203, China
| | - Caisheng Qiu
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Songhua Long
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Yufu Wang
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China.
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Chen L, Yang W, Yang Y, Tu P, Hu S, Zeng Q. Three-season rotation of chicory-tobacco-peanut with high biomass and bioconcentration factors effectively remediates cadmium-contaminated farmland. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:64822-64831. [PMID: 35478394 DOI: 10.1007/s11356-022-20400-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
Traditional phytoremediation is one approach to remediate heavy metal pollution. In developing countries, the key factor in promoting practical application of phytoremediation in polluted soils is selecting suitable plants that are tolerant to heavy metals and also produce products with economic value. Therefore, a field experiment was conducted with a three-season chicory-tobacco-peanut rotation to determine effects on remediation of cadmium (Cd)-contaminated farmland in China. All crops had strong Cd accumulation capacity, with bioconcentration factors of 6.61 to 11.97 in chicory, 3.85 to 21.61 in tobacco, and 1.36 to 7.0 in peanut. Yield of total dry biomass reached 32.4 t ha-1, and the Cd phytoextraction efficiency was 10.3% per year. Aboveground tissues of the three crops accounted for 83.9 to 91.2% of total biomass in the rotation experiment. Cd content in peanut grain and oil met the National Food Safety Standard of China (0.5 mg kg-1, GB 2762-2017) and the Food Contaminant Limit of the European Union (0.1 mg kg-1, 18,812,006). Therefore, in addition to phytoremediation of Cd-contaminated soils, the chicory-tobacco-peanut rotation system can also produce economic benefits for local farmers.
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Affiliation(s)
- Linhan Chen
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Wenjun Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Yang Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Pengfei Tu
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Shengnan Hu
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Qingru Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China.
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Jiang D, Zhou Y, Tan M, Zhang J, Guo Q, Yan S. Cd exposure-induced growth retardation involves in energy metabolism disorder of midgut tissues in the gypsy moth larvae. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115173. [PMID: 32659567 DOI: 10.1016/j.envpol.2020.115173] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/01/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
Cadmium, a common environmental contaminant in both terrestrial and aquatic ecosystems, presented a serious hazard to growth and development of phytophagous insects. For better understanding the toxicology of Cd exposure on phytophagous insects, the physiological and molecular mechanisms underlying the energy metabolism disorder in midgut tissue of gypsy moth larvae fed on Cd-amended artificial diets (3.248 or 44.473 mg Cd/kg fresh food) were investigated. Our results showed that compared with control, Cd exposure at both two levels triggered detriment effects on growth indexes, and with the increase of exposure concentrations, the adverse effects were significantly exacerbated. Larval growth and nutritional indexes (except approximate digestibility) showed a strong positive correlation, indicating that growth retardation in the gypsy moth larvae under Cd stress was tightly related to the food utilization. The key genes at mRNA level in glycolysis/gluconeogenesis, citrate cycle pathway and starch/sucrose metabolism pathway also presented a significant and positive correlation with growth indexes, once again demonstrating that energy metabolism was the key factor that controls the growth and development of the gypsy moth larvae under Cd stress. Antioxidant system collapse and oxidative damage, a chief cause of histopathological alterations in midgut tissue, consist of the physiological basis of energy metabolism disorder in Cd-treated gypsy moth larvae. Together, these results suggest that histopathological alterations or oxidative damage of tissue structure significant disturbed physiological functions of midgut tissue in gypsy moth larvae exposed to Cd stress, as reflected via food utilization or energy metabolism disorder, and eventually resulted in larval growth retardation.
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Affiliation(s)
- Dun Jiang
- School of Forestry, Northeast Forestry University, Harbin, 150040, PR China; Key Laboratory of Sustainable Forest Ecosystem Management, Ministry of Education of PR China, Northeast Forestry University, Harbin, 150040, PR China
| | - Yantao Zhou
- Key Laboratory of State Forestry and Grassland Administration on Forest Pest Monitoring and Warning, General Station of Forest and Grassland Pest Management, National Forestry and Grassland Administration, Shenyang, 110034, PR China
| | - Mingtao Tan
- School of Forestry, Northeast Forestry University, Harbin, 150040, PR China; Key Laboratory of Sustainable Forest Ecosystem Management, Ministry of Education of PR China, Northeast Forestry University, Harbin, 150040, PR China
| | - Jie Zhang
- School of Forestry, Northeast Forestry University, Harbin, 150040, PR China; Key Laboratory of Sustainable Forest Ecosystem Management, Ministry of Education of PR China, Northeast Forestry University, Harbin, 150040, PR China
| | - Qingxi Guo
- School of Forestry, Northeast Forestry University, Harbin, 150040, PR China
| | - Shanchun Yan
- School of Forestry, Northeast Forestry University, Harbin, 150040, PR China; Key Laboratory of Sustainable Forest Ecosystem Management, Ministry of Education of PR China, Northeast Forestry University, Harbin, 150040, PR China.
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9
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Yang JS, Dai Y, Liu Y, Duan S, Li YY, Hu R, Zhou Z, Shi Y, Liu H, Wang S. Reduced cadmium accumulation in tobacco by sodium chloride priming. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:37410-37418. [PMID: 32399872 DOI: 10.1007/s11356-020-09134-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) pollution threatens agricultural security worldwide. This study tested the efficacy of priming chemicals to decrease Cd uptake by tobacco plants (Nicotiana tabacum). After initial screening from nine different chemicals (NaCl, Cd(CH3COO)2, Cd(NO3)2, CdCl2, KHNO3, polyethylene glycol 6000 (PEG-6000), indole-3-acetic acid (IAA), ß-aminobutyric acid (BABA), and glutathione (GSH)), NaCl and PEG-6000 were further investigated because of their low risks to plant growth and efficiency to Cd reduction. Priming procedures (concentrations) were optimized for both chemicals and the best one (100 mM NaCl) was used to test both soil and hydroponic media. The results showed 31.3% lower Cd concentrations in shoots after priming with 100 mM NaCl. Phenotype parameters of the plants were also measured and showed no significant impacts of the priming procedures on the shoot biomass and the uptakes of nitrogen (N), phosphorus (P), and potassium (K), nor the photosynthetic capacity (net photosynthesis rate (Pn) and chlorophyll concentration (SPAD)). Histological observations of the roots showed a significant increase of the stele diameter after NaCl priming and a subsequent negative correlation between shoot Cd concentration and stele diameter was found after NaCl priming at different levels. This study confirmed 100 mM NaCl as an efficient priming treatment to decrease Cd uptake and the coarsening of the root stele was identified as a potential explanation for the observed decrease of Cd in tobacco shoots.
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Affiliation(s)
- Jia-Shuo Yang
- Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, 11 Keyuanjingsi Road, Qingdao, 266101, People's Republic of China.
- Central-South Agricultural Experiment Station of China Tobacco, 628 Furong Road, Changsha, 410004, People's Republic of China.
| | - Yanjiao Dai
- Hunan Academy of Agricultural Science, 892 Yuanda Road, Changsha, 410125, People's Republic of China
| | - Yongjun Liu
- Central-South Agricultural Experiment Station of China Tobacco, 628 Furong Road, Changsha, 410004, People's Republic of China
| | - Shuhui Duan
- Central-South Agricultural Experiment Station of China Tobacco, 628 Furong Road, Changsha, 410004, People's Republic of China
| | - Yang-Yang Li
- Central-South Agricultural Experiment Station of China Tobacco, 628 Furong Road, Changsha, 410004, People's Republic of China
| | - Risheng Hu
- Central-South Agricultural Experiment Station of China Tobacco, 628 Furong Road, Changsha, 410004, People's Republic of China
| | - Zhicheng Zhou
- Central-South Agricultural Experiment Station of China Tobacco, 628 Furong Road, Changsha, 410004, People's Republic of China
| | - Yi Shi
- Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, 11 Keyuanjingsi Road, Qingdao, 266101, People's Republic of China
| | - Haiwei Liu
- Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, 11 Keyuanjingsi Road, Qingdao, 266101, People's Republic of China
| | - Shusheng Wang
- Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, 11 Keyuanjingsi Road, Qingdao, 266101, People's Republic of China.
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10
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Guo Y, Qiu C, Long S, Wang H, Wang Y. Cadmium accumulation, translocation, and assessment of eighteen Linum usitatissimum L. cultivars growing in heavy metal contaminated soil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 22:490-496. [PMID: 31686526 DOI: 10.1080/15226514.2019.1683714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Flax (Linum usitatissimum L.) is suitable for growing in heavy metal polluted soil for non-food purposes and can be used as potential crops for cleaning the soil from heavy metals. The main objective of this study was to investigate flax/linseed phytoextraction of cadmium (Cd), including uptake, translocation, and accumulation differences in organs among flax/linseed cultivars. A field experiment was carried out in Cd contaminated field of Chinese southern area with nine flax, one dual-purpose, and eight linseed cultivars. Cd concentrations in plant organs (root, xylem, phloem, and capsule) and biomass of different organs of each cultivar were measured and evaluated. Significant differences in Cd concentration and accumulation among organs were observed. The most Cd was accumulated by phloem, which was 2 ∼ 4 times more than other organs, followed by roots, xylems and capsules played a comparably smaller role. The uptake of Cd by flax/linseed from per hectare was calculated and had highly significant positive correlation with biomass. Phloem accumulated 45 ∼ 55% of total Cd from the soil by the plant. Among testing 18 flax/linseed cultivars, one flax cultivar (Zhongya 1), and two linseed cultivars (Y2I329 and Y2I330), which extracted more than 60 g ha-1, can be considered as Cd accumulators for phytoremediation of Cd contaminated soil.
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Affiliation(s)
- Yuan Guo
- Institute of Bast Fiber Crops and Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Caisheng Qiu
- Institute of Bast Fiber Crops and Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Songhua Long
- Institute of Bast Fiber Crops and Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Hui Wang
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Yufu Wang
- Institute of Bast Fiber Crops and Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, Hunan, China
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