1
|
Li J, Zhang Q, Chen H, Xu D, Chen Z, Wen Y. Role of Heme Oxygenase-1 in Dual Stress Response of Herbicide and Micronutrient Fe in Arabidopsis thaliana. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13499-13509. [PMID: 36223430 DOI: 10.1021/acs.jafc.2c04039] [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: 06/16/2023]
Abstract
Increasingly intensive agricultural practices are leading not only to herbicide contamination but also to nutritional stress on nontarget plants. This study evaluated the role of heme oxygenase-1 (HO-1) in the dual stress response of herbicide dichlorprop and micronutrient Fe in Arabidopsis thaliana. Our results revealed that co-treatment with 20 μM zinc protoporphyrin (a specific inhibitor of HO-1) reduced the activity of HO-1 by 21.6%, Fe2+ content by 19.8%, and MDA content by 20.0%, reducing abnormal iron aggregation and oxidative stress in response to the herbicide compared to treatment with (R)-dichloroprop alone, which has herbicidal activity. Thus, free Fe2+ released from HO-1 mediated dichlorprop-induced oxidative stress in the Fenton reaction and affected aberrant Fe aggregation, which also had an enantioselective effect. This study contributes to an in-depth understanding of the toxicity mechanism of herbicides under nutrient stresses, thus providing new strategies to control the environmental risks of herbicides.
Collapse
Affiliation(s)
- Jun Li
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiushui Zhang
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hui Chen
- College of Science and Technology, Ningbo University, Ningbo 315211, China
| | - Dongmei Xu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zunwei Chen
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard University T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Yuezhong Wen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
2
|
Pacheco de Almeida Prado Bortolheiro F, de Almeida Silva M. Low doses of glyphosate can affect the nutrient composition of common beans depending on the sowing season. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 794:148733. [PMID: 34217079 DOI: 10.1016/j.scitotenv.2021.148733] [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: 03/03/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Glyphosate application, even in low doses, changes the nutrient composition of crops. The objective of this research was to evaluate the effects of low doses of glyphosate and the sowing season on the macronutrient and micronutrient contents of early cycle common beans. Two experiments were conducted in the field, namely one in the winter season and one in the wet season, using the early cycle common bean cultivar IAC Imperador. The experimental design was a randomized complete block design consisting of the application of low doses of glyphosate [0.0, 1.8, 7.2, 12.0, 36.0, 54.0, and 108.0 g acid equivalent (a.e.) ha-1] in the phenological stage V4 with four replications. Environmental conditions, such as air temperature, interfered with the response of early cycle common beans to low doses of glyphosate. In the winter season, doses of 7.2 g a.e. ha-1 and 36.0 g a.e. ha-1 increased the nutrient composition in the bean leaves, whereas only the Cu content increased in the grains by the dose of 1.8 g a.e. ha-1. In the wet season, there was no increase in the nutrient composition in the bean leaves. The Cu, Zn, Mn, and Fe contents in the grains increased with from the dose of 12 g a.e. ha-1 to above the amount normally observed in common beans, thereby improving the nutritional quality of the food. Our study indicated that low doses of glyphosate alter the nutrient composition of common beans, whereas environmental conditions interfere with the response of common beans to low doses of glyphosate.
Collapse
Affiliation(s)
| | - Marcelo de Almeida Silva
- Laboratory of Ecophysiology Applied to Agriculture (LECA), School of Agricultural Sciences, São Paulo State University (UNESP), Botucatu, SP, Brazil.
| |
Collapse
|
3
|
Silicon Improves the Redox Homeostasis to Alleviate Glyphosate Toxicity in Tomato Plants-Are Nanomaterials Relevant? Antioxidants (Basel) 2021; 10:antiox10081320. [PMID: 34439568 PMCID: PMC8389300 DOI: 10.3390/antiox10081320] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 01/24/2023] Open
Abstract
Given the widespread use of glyphosate (GLY), this agrochemical is becoming a source of contamination in agricultural soils, affecting non-target plants. Therefore, sustainable strategies to increase crop tolerance to GLY are needed. From this perspective and recalling silicon (Si)'s role in alleviating different abiotic stresses, the main goal of this study was to assess if the foliar application of Si, either as bulk or nano forms, is capable of enhancing Solanum lycopersicum L. tolerance to GLY (10 mg kg-1). After 28 day(s), GLY-treated plants exhibited growth-related disorders in both shoots and roots, accompanied by an overproduction of superoxide anion (O2•-) and malondialdehyde (MDA) in shoots. Although plants solely exposed to GLY have activated non-enzymatic antioxidant mechanisms (proline, ascorbate and glutathione), a generalized inhibition of the antioxidant enzymes was found, suggesting the occurrence of great redox disturbances. In response to Si or nano-SiO2 co-application, most of GLY phytotoxic effects on growth were prevented, accompanied with a better ROS removal, especially by an upregulation of the main antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX). Overall, results pointed towards the potential of both sources of Si to reduce GLY-induced oxidative stress, without major differences between their efficacy.
Collapse
|
4
|
Influence of Curly Leaf Trait on Cottonseed Micro-Nutrient Status in Cotton ( Gossypium hirsutum L.) Lines. PLANTS 2021; 10:plants10081701. [PMID: 34451746 PMCID: PMC8402210 DOI: 10.3390/plants10081701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 11/25/2022]
Abstract
Cottonseed is a source of nutrients, including protein, oil, and macro- and micro-nutrients. Micro-nutrients such as boron (B), copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn) are essential for plant and human health. Deficiencies of these micro-nutrients in soil lead to poor crop production and poor seed quality. Micro-nutrient deficiencies in the human diet lead to malnutrition and serious health issues. Therefore, identifying new cotton lines containing high nutritional qualities such as micro-nutrients, and understanding plant traits influencing micro-nutrients are essential. The objective of this research was to investigate the effects of leaf shape (curly leaf: CRL) on cottonseed B, Cu, Fe, Mn, Ni (nickel), and Zn in two near-isogenic cotton lines differing in leaf shape (DP 5690 wild-type with normal leaves and DP 5690 CRL). We also used Uzbek CRL, the source of the curly leaf trait, for comparison. A field experiment was conducted in 2014 and 2015 in Stoneville, MS, USA. The experiment was a randomized complete block design with three replicates. The results showed that, in 2014, both DP 5690 wild-type and Uzbek CRL had higher seed B, Cu, Fe, and Ni than in DP 5690 CRL. The accumulation of Mn and Zn in seeds of DP 5690 CRL was higher than in DP 5690 wild-type and Uzbek CRL. However, in 2015, the concentrations of B, Cu, Fe, and Ni, including Mn and Zn, were higher in both DP 5690 wild-type and Uzbek CRL than in DP 5690 CRL. Positive and negative correlations existed in 2014; however, only positive correlations existed between all nutrients in 2015. This research demonstrated that leaf shape can alter cottonseed micro-nutrients status. As Uzbek CRL behaved similar to wild-type, both leaf shape and other factors contributed to the alteration in seed micronutrients, affecting seed nutritional qualities. Therefore, leaf-shape partially contributed to the changes in micro-nutrients in cottonseed. The negative and positive correlations in 2014, and only positive correlations in 2015, were likely due to the heat difference between 2014 and 2015 as 2015 was warmer than 2014. Significant levels of seed micro-nutrients were shown between these lines, providing opportunities for breeders to select for high seed micro-nutrients in cotton. Additionally, the current research provides researchers with physiological information on the impact of leaf shape on seed nutritional quality. The leaf shape trait can also be used as a tool to study leaf development, physiological, biochemical, and morphological processes.
Collapse
|
5
|
Johnstone JM, Hughes A, Goldenberg JZ, Romijn AR, Rucklidge JJ. Multinutrients for the Treatment of Psychiatric Symptoms in Clinical Samples: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients 2020; 12:E3394. [PMID: 33158241 PMCID: PMC7694278 DOI: 10.3390/nu12113394] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 12/16/2022] Open
Abstract
This systematic review and meta-analysis focused on randomized controlled trials (RCT) of multinutrients consisting of at least four vitamins and/or minerals as interventions for participants with psychiatric symptoms. A systematic search identified 16 RCTs that fit the inclusion criteria (n = 1719 participants) in six psychiatric categories: depression, post-disaster stress, antisocial behavior, behavioral deficits in dementia, attention-deficit/hyperactivity disorder, and autism. Grading of Recommendations, Assessment, Development and Evaluations (GRADE) was used to rate the evidence base. Significant clinical benefit was assessed using minimal clinically important differences (MIDs). Due to heterogeneity in participants, multinutrient formulas, outcome measures, and absence of complete data, only the Attention-Deficit/Hyperactivity Disorder (ADHD) category was eligible for meta-analyses. In ADHD populations, statistically and clinically significant improvements were found in global functioning, Mean Difference (MD) -3.3, p = 0.001, MID -3.26; Standardized Mean Difference (SMD) -0.49 p = 0.001 MD -0.5), clinician ratings of global improvement (MD -0.58, p = 0.001, MID -0.5) and ADHD improvement (MD -0.54, p = 0.002, MID -0.5), and clinician (but not observer) measures of ADHD inattentive symptoms (MD -1.53, p = 0.05, MID -0.5). Narrative synthesis also revealed a pattern of benefit for global measures of improvement, for example: in autism, and in participants with behavioral deficits in dementia. Post-natural disaster anxiety and the number of violent incidents in prison populations also improved. Broad-spectrum formulas (vitamins + minerals) demonstrated more robust effects than formulas with fewer ingredients. This review highlights the need for robust methodology-RCTs that report full data, including means and standard deviations for all outcomes-in order to further elucidate the effects of multinutrients for psychiatric symptoms.
Collapse
Affiliation(s)
- Jeanette M. Johnstone
- Helfgott Research Institute, National University of Natural Medicine, Portland, OR 97201, USA;
- Child and Adolescent Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA
| | - Andrew Hughes
- Adult Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA;
| | - Joshua Z. Goldenberg
- Helfgott Research Institute, National University of Natural Medicine, Portland, OR 97201, USA;
- Australian Research Centre in Complementary and Integrative Medicine, Faculty of Health, University of Technology Sydney, Sydney 2007, Australia
| | - Amy R. Romijn
- Department of Psychology, Swansea University, Swansea SA2 8PP, UK;
| | - Julia J. Rucklidge
- School of Psychology, Speech and Hearing, University of Canterbury, 8140 Christchurch, New Zealand
| |
Collapse
|
6
|
Tofiño Rivera AP, Carbono Murgas RE, Melo Ríos AE, Merini LJ. [Effect of glyphosate on microbiota, soil quality and biofortified bean crop in Codazzi, department of Cesar, Colombia]. Rev Argent Microbiol 2020; 52:61-71. [PMID: 31153682 DOI: 10.1016/j.ram.2019.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 01/04/2019] [Accepted: 01/07/2019] [Indexed: 10/26/2022] Open
Abstract
Strategies aimed at achieving food safety in crops of high nutritional value should be carried out through sustainable agricultural practices aimed at soil conservation, high yield and food safety. This latter characteristic implies food production without detectable traces of agrochemicals that threaten health. The objective of this study was to assess the effect of the herbicide glyphosate on the chemical and biological fertility of the soil and to determine its residual activity on biofortified bean seeds in Codazzi, Department of Cesar, Colombia. The method included a correlational analysis of soil quality, crop yield and residuality in bean grains. The treatments included glyphosate application and synthetic and natural mulches, compared to manual control. The results showed differences in the response of chemical, microbiological and yield indicators between treatments and the initial conditions of the bean rhizosphere. The use of the herbicide glyphosate in mulch-free soil generates yield losses of 29% associated with a higher incidence of pests and fungal diseases; in all treatments, no glyphosate residuality was detected in seeds; however, residuality was detected in other molecules derived from insecticides associated with the local production system. In conclusion, in plots with high weed pressure by Cyperus rotundus, the use of mulch is recommended as an alternative to maintain bean productivity over time; by offering protection against the effect of the herbicide on both the root system of the plant and the soil microbiota of the biofortified bean crop.
Collapse
Affiliation(s)
- Adriana Patricia Tofiño Rivera
- Corporación Colombiana de Investigación Agropecuaria Agrosavia, Centro de Investigación Motilonia, Valledupar, Colombia.
| | | | - Aslenis Emidia Melo Ríos
- Universidad de Santander, Facultad Ciencias de la Salud, Grupo de Investigación CIENCIAUDES, Valledupar, Colombia
| | - Luciano José Merini
- Universidad de Buenos Aires, INTA-CONICET-Universidad Nacional de La Pampa, La Pampa, Argentina
| |
Collapse
|
7
|
Reddy KN, Cizdziel JV, Williams MM, Maul JE, Rimando AM, Duke SO. Glyphosate Resistance Technology Has Minimal or No Effect on Maize Mineral Content and Yield. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10139-10146. [PMID: 30203974 DOI: 10.1021/acs.jafc.8b01655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Controversy continues to exist regarding whether the transgene for glyphosate resistance (GR) and/or glyphosate applied to GR crops adversely affect plant mineral content. Field studies were conducted in 2013 and 2014 in Stoneville, MS and Urbana, IL to examine this issue in maize. At each location, the experiment was conducted in fields with no history of glyphosate application and fields with several years of glyphosate use preceding the study. Neither glyphosate nor the GR transgene affected yield or mineral content of leaves or seed, except for occasional (<5%) significant effects that were inconsistent across minerals, treatments, and environments. Glyphosate and AMPA (aminomethylphosphonic acid), a main degradation product of glyphosate, were found in leaves from treated plants, but little or no glyphosate and no AMPA was found in maize seeds. These results show that the GR transgene and glyphosate application, whether used for a single year or several years, have no deleterious effect on mineral nutrition or yield of GR maize.
Collapse
Affiliation(s)
- Krishna N Reddy
- Crop Production Systems Research Unit, USDA-ARS , P.O. Box 350, Stoneville , Mississippi 38776 , United States
| | - James V Cizdziel
- Department of Chemistry and Biochemistry , University of Mississippi , 222 Coulter Hall , University , Mississippi 38677 , United States
| | - Martin M Williams
- Global Change and Photosynthesis Research unit , USDA-ARS, 1102 S. Goodwin Avenue , Urbana , Illinois 61801 , United States
| | - Jude E Maul
- Sustainable Agricultural Systems Laboratory, USDA-ARS , 10300 Baltimore Avenue , Beltsville , Maryland 20705 , United States
| | - Agnes M Rimando
- Natural Products Utilization Research Unit, USDA-ARS , P.O. Box 1848, University , Mississippi 38677 , United States
| | - Stephen O Duke
- Natural Products Utilization Research Unit, USDA-ARS , P.O. Box 1848, University , Mississippi 38677 , United States
| |
Collapse
|
8
|
Bartucca ML, Di Michele A, Del Buono D. Interference of three herbicides on iron acquisition in maize plants. CHEMOSPHERE 2018; 206:424-431. [PMID: 29758499 DOI: 10.1016/j.chemosphere.2018.05.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/18/2018] [Accepted: 05/07/2018] [Indexed: 06/08/2023]
Abstract
The use of herbicides to control weed species could lead to environmental threats due to their persistence and accumulation in the ecosystems and cultivated fields. Nonetheless, the effect of these compounds on plant mineral nutrition in crops has been barely investigated. This study aimed at ascertaining the effect of three herbicides (S-metolachlor, metribuzin and terbuthylazine) on the capacity of maize to acquire iron (Fe). Interferences on plant growth and reductions on the Fe contents were found in the plants treated. Furthermore, root cell viability and functionality losses were ascertained following the treatments, which, in turn, decreased the amount of phytosiderophores (PSs) released by the roots. An investigation carried out in greater depth on root apices of treated plants using an FE-SEM (Scanning Electron Microscope) coupled with EDX (Energy Dispersive X-ray) indicated that the reductions on Fe content started in this part of the roots. Lastly, decreases were found also in copper (Cu+2), zinc (Zn+2) and manganese (Mn+2) content in root apices.
Collapse
Affiliation(s)
- Maria Luce Bartucca
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università Degli Studi di Perugia, Borgo XX Giugno 74, 06121 Perugia, Italy
| | - Alessandro Di Michele
- Dipartimento di Fisica e Geologia, Università Degli Studi di Perugia, Via Pascoli, 06123 Perugia, Italy
| | - Daniele Del Buono
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università Degli Studi di Perugia, Borgo XX Giugno 74, 06121 Perugia, Italy.
| |
Collapse
|
9
|
Duke SO, Rimando AM, Reddy KN, Cizdziel JV, Bellaloui N, Shaw DR, Williams MM, Maul JE. Lack of transgene and glyphosate effects on yield, and mineral and amino acid content of glyphosate-resistant soybean. PEST MANAGEMENT SCIENCE 2018; 74:1166-1173. [PMID: 28547884 DOI: 10.1002/ps.4625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 05/12/2017] [Accepted: 05/23/2017] [Indexed: 05/09/2023]
Abstract
BACKGROUND There has been controversy as to whether the glyphosate resistance gene and/or glyphosate applied to glyphosate-resistant (GR) soybean affect the content of cationic minerals (especially Mg, Mn and Fe), yield and amino acid content of GR soybean. A two-year field study (2013 and 2014) examined these questions at sites in Mississippi, USA. RESULTS There were no effects of glyphosate, the GR transgene or field crop history (for a field with both no history of glyphosate use versus one with a long history of glyphosate use) on grain yield. Furthermore, these factors had no consistent effects on measured mineral (Al, As, Ba, Cd, Ca, Co, Cr, Cs, Cu, Fe, Ga, K, Li, Mg, Mn, Ni, Pb, Rb, Se, Sr, Tl, U, V, Zn) content of leaves or harvested seed. Effects on minerals were small and inconsistent between years, treatments and mineral, and appeared to be random false positives. No notable effects on free or protein amino acids of the seed were measured, although glyphosate and its degradation product, aminomethylphosphonic acid (AMPA), were found in the seed in concentrations consistent with previous studies. CONCLUSIONS Neither glyphosate nor the GR transgene affect the content of the minerals measured in leaves and seed, harvested seed amino acid composition, or yield of GR soybean. Furthermore, soils with a legacy of GR crops have no effects on these parameters in soybean. © 2017 Society of Chemical Industry.
Collapse
Affiliation(s)
- Stephen O Duke
- U.S. Department of Agriculture-Agricultural Research Service, Natural Products Utilization Research Unit, University, MS, USA
| | - Agnes M Rimando
- U.S. Department of Agriculture-Agricultural Research Service, Natural Products Utilization Research Unit, University, MS, USA
| | - Krishna N Reddy
- USDA-ARS, Crop Production Systems Research Unit, Stoneville, MS, USA
| | - James V Cizdziel
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| | | | - David R Shaw
- Research and Economic Development, Mississippi State University, Mississippi State, MS, USA
| | - Martin M Williams
- USDA-ARS, Global Change and Photosynthesis Research Unit, Urbana, IL, USA
| | - Jude E Maul
- USDA-ARS, Sustainable Agricultural Systems Laboratory, Beltsville, MD, USA
| |
Collapse
|
10
|
Tang J, Hu P, Li Y, Win-Shwe TT, Li C. Ion Imbalance Is Involved in the Mechanisms of Liver Oxidative Damage in Rats Exposed to Glyphosate. Front Physiol 2017; 8:1083. [PMID: 29311996 PMCID: PMC5742203 DOI: 10.3389/fphys.2017.01083] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022] Open
Abstract
Glyphosate (N-phosphonomethyl-glycine, GLP) is the most popular herbicide used worldwide. This study aimed to investigate the effects of glyphosate on rats' liver function and induction of pathological changes in ion levels and oxidative stress in hepatic tissue. Sprague-Dawley rats were treated orally with 0, 5, 50, and 500 mg/kg body weight of the GLP. After 5 weeks of treatment, blood and liver samples were analyzed for biochemical and histomorphological parameters. The various mineral elements content in the organs of the rats were also measured. Significant decreases were shown in the weights of body, liver, kidney and spleen between the control and treatment groups. Changes also happened in the histomorphology of the liver and kidney tissue of GLP-treated rats. The GLP resulted in an elevated level of glutamic-oxalacetic transaminase (GOT), glutamic-pyruvic transaminase (GPT) and IL-1β in the serum. Besides, decreased total superoxide dismutase (T-SOD) activity and increased malondialdehyde (MDA) contents in the serum, liver, and kidney indicated the presence of oxidative stress. Moreover, increase of hydrogen peroxide (H2O2) level and catalase (CAT) activity in the serum and liver and decrease of glutathione (GSH) and lutathione peroxidase (GSH-Px) activity in the kidney tissue further confirmed the occurrence of oxidative stress. The results of RT-PCR showed that the mRNA expressions of IL-1α, IL-1β, IL-6, MAPK3, NF-κB, SIRT1, TNF-α, Keap1, GPX2, and Caspase-3 were significantly increased in the GLP-treated groups compared to the control group. Furthermore, PPARα, DGAT, SREBP1c, and SCD1 mRNA expressions were also remarkably increased in the GLP-treated groups compared to the control group. In addition, aluminum (Al), iron (Fe), copper (Cu), zinc (Zn), and magnesium (Mg) levels were showed a significant difference reduction or increase in rat liver, kidney, spleen, lung, heart, muscle, brain, and fat tissues. These results suggested that glyphosate caused obvious damage to rats' liver and caused various mineral elements content imbalances in various organs of rats. Ion imbalance could weaken antioxidant capacity and involve in the mechanism of liver oxidative damage caused by GLP.
Collapse
Affiliation(s)
- Juan Tang
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ping Hu
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yansen Li
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Tin-Tin Win-Shwe
- Health Effect Assessment Section Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Japan
| | - Chunmei Li
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
11
|
Bartucca ML, Celletti S, Astolfi S, Mimmo T, Cesco S, Panfili I, Del Buono D. Effect of three safeners on sulfur assimilation and iron deficiency response in barley (Hordeum vulgare) plants. PEST MANAGEMENT SCIENCE 2017; 73:240-245. [PMID: 27061021 DOI: 10.1002/ps.4291] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 03/24/2016] [Accepted: 04/05/2016] [Indexed: 05/24/2023]
Abstract
BACKGROUND Safeners are agrochemicals used in agriculture to protect crops from herbicide injuries. They act by stimulating herbicide metabolism. As graminaceous plants, to cope with iron (Fe) deficiency, activate sulfur (S) metabolism and release huge amounts of Fe-chelating compounds, or phytosiderophores (PSs), we investigated, in barley plants (Hordeum vulgare, L.) grown in Fe deficiency, the effects of three safeners on two enzymes of S assimilation, cysteine (Cys) and glutathione (GSH), and PS release. Finally, we monitored the root Fe content in plants treated with the most effective safener. RESULTS Generally, all the safeners activated S metabolism and increased Cys and GSH contents. In addition, the safened plants excreted higher levels of PSs. Given that mefenpyr-diethyl (Mef) was the most effective in causing these effects, we assessed the Fe concentration in Mef-treated barley and found higher Fe levels than those in untreated plants. CONCLUSION The three safeners, in different ways but specifically, activated S reductive metabolism and regulated Cys and GSH contents, PS release rate and Fe content (Mef-treated barley). The results of this research provide new indications of the biochemical and physiological mechanisms involved in the safening action. © 2016 Society of Chemical Industry.
Collapse
Affiliation(s)
- Maria Luce Bartucca
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Perugia, Italy
| | - Silvia Celletti
- Dipartimento di Agricoltura, Foreste, Natura ed Energia (DAFNE), Viterbo, Italy
| | - Stefania Astolfi
- Dipartimento di Agricoltura, Foreste, Natura ed Energia (DAFNE), Viterbo, Italy
| | - Tanja Mimmo
- Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
| | - Stefano Cesco
- Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
| | - Ivan Panfili
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Perugia, Italy
| | - Daniele Del Buono
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Perugia, Italy
| |
Collapse
|
12
|
Donnini S, Tessarin P, Ribera-Fonseca A, Di Foggia M, Parpinello GP, Rombolà AD. Glyphosate impacts on polyphenolic composition in grapevine (Vitis vinifera L.) berries and wine. Food Chem 2016; 213:26-30. [PMID: 27451151 DOI: 10.1016/j.foodchem.2016.06.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 06/10/2016] [Accepted: 06/14/2016] [Indexed: 01/19/2023]
Abstract
Glyphosate is the most widespread herbicide for weed management, being extensively used in viticulture. In this study we tested, under field conditions, the effects of glyphosate applications on the quality of berry and wine, from cv. Ancellotta (Vitis vinifera L.), with particular regard to anthocyanin concentration and composition. Ripening and growth were monitored by analyzing berry technological parameters and weight. Additionally, microvinifications were performed, in order to analyze the concentration of anthocyanins, other flavonoids and phenolic acids in wine. Our findings indicated that, at harvest, both pH and anthocyanin concentration were significantly lower and titratable acidity higher in berries collected from vines of plots under glyphosate-treatment compared with those of non-treated parcels. Data suggest that treatment with glyphosate did not change the concentration of anthocyanins, other flavonoids and phenolic acids in the wine. Our results indicate that treatment with glyphosate may affect fruit metabolism and nutritional value in non-target plants.
Collapse
Affiliation(s)
- Silvia Donnini
- Department of Agricultural Sciences, School of Agriculture and Veterinary Medicine, Alma Mater Studiorum, University of Bologna, Viale G. Fanin 44, 40127 Bologna, Italy
| | - Paola Tessarin
- Department of Agricultural Sciences, School of Agriculture and Veterinary Medicine, Alma Mater Studiorum, University of Bologna, Viale G. Fanin 44, 40127 Bologna, Italy
| | - Alejandra Ribera-Fonseca
- Departamento de Producción Agropecuaria, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, P.O. Box 54-D, Avenida Francisco Salazar 01145, Temuco, Chile
| | - Michele Di Foggia
- Department of Agricultural Sciences, School of Agriculture and Veterinary Medicine, Alma Mater Studiorum, University of Bologna, Viale G. Fanin 44, 40127 Bologna, Italy
| | - Giuseppina Paola Parpinello
- Department of Agricultural and Food Sciences, School of Agriculture and Veterinary Medicine, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy
| | - Adamo Domenico Rombolà
- Department of Agricultural Sciences, School of Agriculture and Veterinary Medicine, Alma Mater Studiorum, University of Bologna, Viale G. Fanin 44, 40127 Bologna, Italy.
| |
Collapse
|
13
|
Brunetto G, Bastos de Melo GW, Terzano R, Del Buono D, Astolfi S, Tomasi N, Pii Y, Mimmo T, Cesco S. Copper accumulation in vineyard soils: Rhizosphere processes and agronomic practices to limit its toxicity. CHEMOSPHERE 2016; 162:293-307. [PMID: 27513550 DOI: 10.1016/j.chemosphere.2016.07.104] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 07/28/2016] [Accepted: 07/31/2016] [Indexed: 05/23/2023]
Abstract
Viticulture represents an important agricultural practice in many countries worldwide. Yet, the continuous use of fungicides has caused copper (Cu) accumulation in soils, which represent a major environmental and toxicological concern. Despite being an important micronutrient, Cu can be a potential toxicant at high concentrations since it may cause morphological, anatomical and physiological changes in plants, decreasing both food productivity and quality. Rhizosphere processes can, however, actively control the uptake and translocation of Cu in plants. In particular, root exudates affecting the chemical, physical and biological characteristics of the rhizosphere, might reduce the availability of Cu in the soil and hence its absorption. In addition, this review will aim at discussing the advantages and disadvantages of agronomic practices, such as liming, the use of pesticides, the application of organic matter, biochar and coal fly ashes, the inoculation with bacteria and/or mycorrhizal fungi and the intercropping, in alleviating Cu toxicity symptoms.
Collapse
Affiliation(s)
- Gustavo Brunetto
- Departament of Soil Science, Federal University of Santa Maria, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - George Wellington Bastos de Melo
- National Research Center of Grape and Wine (Centro Nacional de Pesquisa de Uva e Vinho - CNPUV), Brazilian Agricultural Research Corporation (Empresa Brasileira de Pesquisa Agropecuária - Embrapa), Bento Gonçalves, Rio Grande do Sul, CEP: 95700-000, Brazil
| | - Roberto Terzano
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, University of Bari "Aldo Moro", I-70126, Bari, Italy
| | - Daniele Del Buono
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Borgo XX Giugno 74, 06121 Perugia, Italy
| | - Stefania Astolfi
- Department of Agricultural and Forestry Sciences (DAFNE), Università della Tuscia, Viterbo, I-01100, Italy
| | - Nicola Tomasi
- Dipartimento di Scienze Agrarie e Ambientali, University of Udine, I-33100, Udine, Italy
| | - Youry Pii
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| | - Tanja Mimmo
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy.
| | - Stefano Cesco
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| |
Collapse
|
14
|
Schreinemachers DM, Ghio AJ. Effects of Environmental Pollutants on Cellular Iron Homeostasis and Ultimate Links to Human Disease. ENVIRONMENTAL HEALTH INSIGHTS 2016; 10:35-43. [PMID: 26966372 PMCID: PMC4782969 DOI: 10.4137/ehi.s36225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 05/04/2023]
Abstract
Chronic disease has increased in the past several decades, and environmental pollutants have been implicated. The magnitude and variety of diseases may indicate the malfunctioning of some basic mechanisms underlying human health. Environmental pollutants demonstrate a capability to complex iron through electronegative functional groups containing oxygen, nitrogen, or sulfur. Cellular exposure to the chemical or its metabolite may cause a loss of requisite functional iron from intracellular sites. The cell is compelled to acquire further iron critical to its survival by activation of iron-responsive proteins and increasing iron import. Iron homeostasis in the exposed cells is altered due to a new equilibrium being established between iron-requiring cells and the inappropriate chelator (the pollutant or its catabolite). Following exposure to environmental pollutants, the perturbation of functional iron homeostasis may be the mechanism leading to adverse biological effects. Understanding the mechanism may lead to intervention methods for this major public health concern.
Collapse
|
15
|
Kandel YR, Bradley CA, Wise KA, Chilvers MI, Tenuta AU, Davis VM, Esker PD, Smith DL, Licht MA, Mueller DS. Effect of Glyphosate Application on Sudden Death Syndrome of Glyphosate-Resistant Soybean Under Field Conditions. PLANT DISEASE 2015; 99:347-354. [PMID: 30699703 DOI: 10.1094/pdis-06-14-0577-re] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Sudden death syndrome (SDS), caused by Fusarium virguliforme, is an important yield limiting disease of soybean. Glyphosate is used to control weeds in soybean; however, its effect on SDS is not clearly understood. The objective of this study was to examine the impact of glyphosate on SDS, yield, and plant nutrition under field conditions. Fourteen field experiments were conducted in Iowa, Illinois, Indiana, Michigan, Wisconsin, and Ontario, Canada during 2011 to 2013. The experiment consisted of six treatment combinations of glyphosate and herbicides not containing glyphosate. Disease index was significantly different across the location-years, ranging from 0 to 65. The highest disease was noted in locations with irrigation, indicating that high soil moisture favors development of SDS. There were no effects of herbicide treatments or interactions on disease. The foliar disease index among the treatments over all years ranged from 9 to 13. Glyphosate-treatments also tended to yield more than treatments of herbicides not containing glyphosate. There were no interactions between glyphosate-treatments and total manganese in plant tissue. The interaction of glyphosate with other nutrients in plant tissue was inconclusive. This 14 location-year study demonstrated that glyphosate application did not increase SDS severity or adversely affect soybean yield under field conditions.
Collapse
Affiliation(s)
- Yuba R Kandel
- Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA 50011
| | - Carl A Bradley
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801
| | - Kiersten A Wise
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907-2054
| | - Martin I Chilvers
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI 48824
| | - Albert U Tenuta
- Ontario Ministry of Agriculture and Food, Ridgetown, ON N0P2C0, Canada
| | - Vince M Davis
- Department of Agronomy, University of Wisconsin-Madison, WI 53706
| | - Paul D Esker
- School of Agronomy, University of Costa Rica, San Jose, CR
| | - Damon L Smith
- Department of Plant Pathology, University of Wisconsin-Madison
| | | | - Daren S Mueller
- Department of Plant Pathology and Microbiology, Iowa State University, Ames
| |
Collapse
|
16
|
Gomes MP, Smedbol E, Chalifour A, Hénault-Ethier L, Labrecque M, Lepage L, Lucotte M, Juneau P. Alteration of plant physiology by glyphosate and its by-product aminomethylphosphonic acid: an overview. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:4691-703. [PMID: 25039071 DOI: 10.1093/jxb/eru269] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
It is generally claimed that glyphosate kills undesired plants by affecting the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme, disturbing the shikimate pathway. However, the mechanisms leading to plant death may also be related to secondary or indirect effects of glyphosate on plant physiology. Moreover, some plants can metabolize glyphosate to aminomethylphosphonic acid (AMPA) or be exposed to AMPA from different environmental matrices. AMPA is a recognized phytotoxin, and its co-occurrence with glyphosate could modify the effects of glyphosate on plant physiology. The present review provides an overall picture of alterations of plant physiology caused by environmental exposure to glyphosate and its metabolite AMPA, and summarizes their effects on several physiological processes. It particularly focuses on photosynthesis, from photochemical events to C assimilation and translocation, as well as oxidative stress. The effects of glyphosate and AMPA on several plant physiological processes have been linked, with the aim of better understanding their phytotoxicity and glyphosate herbicidal effects.
Collapse
Affiliation(s)
- Marcelo P Gomes
- Université du Québec à Montréal, Département des sciences biologiques, Centre de recherche interinstitutionnel en toxicologie de l'environnement (TOXEN), Ecotoxicology of Aquatic Microorganisms Laboratory, Succ. Centre-Ville, H3C 3P8, Montréal, Québec, Canada Université du Québec à Montréal, Institut des Sciences de l'environnement, Succ. Centre-Ville, C.p. 8888, H3C 3P8, Montréal, Québec, Canada
| | - Elise Smedbol
- Université du Québec à Montréal, Département des sciences biologiques, Centre de recherche interinstitutionnel en toxicologie de l'environnement (TOXEN), Ecotoxicology of Aquatic Microorganisms Laboratory, Succ. Centre-Ville, H3C 3P8, Montréal, Québec, Canada Université du Québec à Montréal, Institut des Sciences de l'environnement, Succ. Centre-Ville, C.p. 8888, H3C 3P8, Montréal, Québec, Canada
| | - Annie Chalifour
- Université du Québec à Montréal, Département des sciences biologiques, Centre de recherche interinstitutionnel en toxicologie de l'environnement (TOXEN), Ecotoxicology of Aquatic Microorganisms Laboratory, Succ. Centre-Ville, H3C 3P8, Montréal, Québec, Canada
| | - Louise Hénault-Ethier
- Université du Québec à Montréal, Institut des Sciences de l'environnement, Succ. Centre-Ville, C.p. 8888, H3C 3P8, Montréal, Québec, Canada
| | - Michel Labrecque
- Université de Montréal, Institut de Recherche en Biologie Végétale, 4101 Sherbrooke East, H1X 2B2, Montréal, Québec, Canada
| | - Laurent Lepage
- Université du Québec à Montréal, Institut des Sciences de l'environnement, Succ. Centre-Ville, C.p. 8888, H3C 3P8, Montréal, Québec, Canada
| | - Marc Lucotte
- Université du Québec à Montréal, Institut des Sciences de l'environnement, Succ. Centre-Ville, C.p. 8888, H3C 3P8, Montréal, Québec, Canada
| | - Philippe Juneau
- Université du Québec à Montréal, Département des sciences biologiques, Centre de recherche interinstitutionnel en toxicologie de l'environnement (TOXEN), Ecotoxicology of Aquatic Microorganisms Laboratory, Succ. Centre-Ville, H3C 3P8, Montréal, Québec, Canada Université du Québec à Montréal, Institut des Sciences de l'environnement, Succ. Centre-Ville, C.p. 8888, H3C 3P8, Montréal, Québec, Canada
| |
Collapse
|
17
|
Samsel A, Seneff S. Glyphosate, pathways to modern diseases II: Celiac sprue and gluten intolerance. Interdiscip Toxicol 2013; 6:159-84. [PMID: 24678255 PMCID: PMC3945755 DOI: 10.2478/intox-2013-0026] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 11/10/2013] [Accepted: 11/12/2013] [Indexed: 12/20/2022] Open
Abstract
Celiac disease, and, more generally, gluten intolerance, is a growing problem worldwide, but especially in North America and Europe, where an estimated 5% of the population now suffers from it. Symptoms include nausea, diarrhea, skin rashes, macrocytic anemia and depression. It is a multifactorial disease associated with numerous nutritional deficiencies as well as reproductive issues and increased risk to thyroid disease, kidney failure and cancer. Here, we propose that glyphosate, the active ingredient in the herbicide, Roundup(®), is the most important causal factor in this epidemic. Fish exposed to glyphosate develop digestive problems that are reminiscent of celiac disease. Celiac disease is associated with imbalances in gut bacteria that can be fully explained by the known effects of glyphosate on gut bacteria. Characteristics of celiac disease point to impairment in many cytochrome P450 enzymes, which are involved with detoxifying environmental toxins, activating vitamin D3, catabolizing vitamin A, and maintaining bile acid production and sulfate supplies to the gut. Glyphosate is known to inhibit cytochrome P450 enzymes. Deficiencies in iron, cobalt, molybdenum, copper and other rare metals associated with celiac disease can be attributed to glyphosate's strong ability to chelate these elements. Deficiencies in tryptophan, tyrosine, methionine and selenomethionine associated with celiac disease match glyphosate's known depletion of these amino acids. Celiac disease patients have an increased risk to non-Hodgkin's lymphoma, which has also been implicated in glyphosate exposure. Reproductive issues associated with celiac disease, such as infertility, miscarriages, and birth defects, can also be explained by glyphosate. Glyphosate residues in wheat and other crops are likely increasing recently due to the growing practice of crop desiccation just prior to the harvest. We argue that the practice of "ripening" sugar cane with glyphosate may explain the recent surge in kidney failure among agricultural workers in Central America. We conclude with a plea to governments to reconsider policies regarding the safety of glyphosate residues in foods.
Collapse
Affiliation(s)
- Anthony Samsel
- Independent Scientist and Consultant, Deerfield, NH 03037, USA
| | - Stephanie Seneff
- Computer Science and Artificial Intelligence Laboratory, MIT, Cambridge, MA, USA
| |
Collapse
|
18
|
Kutman BY, Kutman UB, Cakmak I. Foliar nickel application alleviates detrimental effects of glyphosate drift on yield and seed quality of wheat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:8364-72. [PMID: 23882996 DOI: 10.1021/jf402194v] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Glyphosate drift to nontarget crops causes growth aberrations and yield losses. This herbicide can also interact with divalent nutrients and form poorly soluble complexes. The possibility of using nickel (Ni), an essential divalent metal, for alleviating glyphosate drift damage to wheat was investigated in this study. Effects of Ni applications on various growth parameters, seed yield, and quality of durum wheat ( Triticum durum ) treated with sublethal glyphosate at different developmental stages were investigated in greenhouse experiments. Nickel concentrations of various plant parts and glyphosate-induced shikimate accumulation were measured. Foliar but not soil Ni applications significantly reduced glyphosate injuries including yield losses, stunting, and excessive tillering. Both shoot and grain Ni concentrations were enhanced by foliar Ni treatment. Seed germination and seedling vigor were impaired by glyphosate and improved by foliar Ni application to parental plants. Foliar Ni application appears to have a great potential to ameliorate glyphosate drift injury to wheat.
Collapse
Affiliation(s)
- Bahar Yildiz Kutman
- Faculty of Engineering and Natural Sciences, Sabancı University , 34956 Istanbul, Turkey
| | | | | |
Collapse
|
19
|
Duke SO, Lydon J, Koskinen WC, Moorman TB, Chaney RL, Hammerschmidt R. Glyphosate effects on plant mineral nutrition, crop rhizosphere microbiota, and plant disease in glyphosate-resistant crops. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:10375-97. [PMID: 23013354 PMCID: PMC3479986 DOI: 10.1021/jf302436u] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 09/24/2012] [Accepted: 09/26/2012] [Indexed: 05/09/2023]
Abstract
Claims have been made recently that glyphosate-resistant (GR) crops sometimes have mineral deficiencies and increased plant disease. This review evaluates the literature that is germane to these claims. Our conclusions are: (1) although there is conflicting literature on the effects of glyphosate on mineral nutrition on GR crops, most of the literature indicates that mineral nutrition in GR crops is not affected by either the GR trait or by application of glyphosate; (2) most of the available data support the view that neither the GR transgenes nor glyphosate use in GR crops increases crop disease; and (3) yield data on GR crops do not support the hypotheses that there are substantive mineral nutrition or disease problems that are specific to GR crops.
Collapse
Affiliation(s)
- Stephen O Duke
- USDA, ARS Natural Products Utilization Research Unit, P.O. Box 8048, University, Mississippi 38677, USA.
| | | | | | | | | | | |
Collapse
|
20
|
Duke SO, Reddy KN, Bu K, Cizdziel JV. Effects of glyphosate on the mineral content of glyphosate-resistant soybeans (Glycine max). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:6764-71. [PMID: 22708739 DOI: 10.1021/jf3014603] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
There are conflicting claims as to whether treatment with glyphosate adversely affects mineral nutrition of glyphosate-resistant (GR) crops. Those who have made claims of adverse effects have argued links between reduced Mn and diseases in these crops. This article describes experiments designed to determine the effects of a recommended rate (0.86 kg ha(-1)) of glyphosate applied once or twice on the mineral content of young and mature leaves, as well as in seeds produced by GR soybeans (Glycine max) in both the greenhouse and field using inductively coupled plasma mass spectrometry (ICP-MS). In the greenhouse, there were no effects of either one application (at 3 weeks after planting, WAP) or two applications (at 3 and 6 WAP) of glyphosate on Ca, Mg, Mn, Zn, Fe, Cu, Sr, Ba, Al, Cd, Cr, Co, or Ni content of young or old leaves sampled at 6, 9, and 12 WAP and in harvested seed. Se concentrations were too low for accurate detection in leaves, but there was also no effect of glyphosate applications on Se in the seeds. In the field study, there were no effects of two applications (at 3 and 6 WAP) of glyphosate on Ca, Mg, Mn, Zn, Fe, Cu, Sr, Ba, Al, Cd, Cr, Co, or Ni content of young or old leaves at either 9 or 12 WAP. There was also no effect on Se in the seeds. There was no difference in yield between control and glyphosate-treated GR soybeans in the field. The results indicate that glyphosate does not influence mineral nutrition of GR soybean at recommended rates for weed management in the field. Furthermore, the field studies confirm the results of greenhouse studies.
Collapse
Affiliation(s)
- Stephen O Duke
- USDA , ARS, Natural Product Utilization Research Unit, University, Mississippi 38677, United States
| | | | | | | |
Collapse
|
21
|
Henry RS, Wise KA, Johnson WG. Glyphosate's Effect Upon Mineral Accumulation in Soybean. ACTA ACUST UNITED AC 2011. [DOI: 10.1094/cm-2011-1024-01-rs] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ryan S. Henry
- Department of Botany and Plant Pathology; Purdue University; West Lafayette IN 47907
| | - Kiersten A. Wise
- Department of Botany and Plant Pathology; Purdue University; West Lafayette IN 47907
| | - William G. Johnson
- Department of Botany and Plant Pathology; Purdue University; West Lafayette IN 47907
| |
Collapse
|
22
|
Sonier MB, Weger HG. Plasma membrane ferric reductase activity of iron-limited algal cells is inhibited by ferric chelators. Biometals 2010; 23:1029-42. [PMID: 20508972 DOI: 10.1007/s10534-010-9348-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 05/17/2010] [Indexed: 10/19/2022]
Abstract
Iron-limited cells of the green alga Chlorella kesslerii use a reductive mechanism to acquire Fe(III) from the extracellular environment, in which a plasma membrane ferric reductase reduces Fe(III)-chelates to Fe(II), which is subsequently taken up by the cell. Previous work has demonstrated that synthetic chelators both support ferric reductase activity (when supplied as Fe(III)-chelates) and inhibit ferric reductase. In the present set of experiments we extend these observations to naturally-occurring chelators and their analogues (desferrioxamine B mesylate, schizokinen, two forms of dihydroxybenzoic acid) and also two formulations of the commonly-used herbicide N-(phoshonomethyl)glycine (glyphosate). The ferric forms of the larger siderophores (desferrioxamine B mesylate, schizokinen) and Fe(III)-N-(phoshonomethyl)glycine (as the isopropylamine salt) all supported rapid rates of ferric reductase activity, while the iron-free forms inhibited reductase activity. The smaller siderophores/siderophore precursors, 2,3- and 3,4-dihydroxybenzoic acids, did not support high rates of reductase in the ferric form but did inhibit reductase activity in the iron-free form. Bioassays indicated that Fe(III)-chelates that supported high rates of ferric reductase activity also supported a large stimulation in the growth of iron-limited cells, and that an excess of iron-free chelator decreased the growth rate. With respect to N-(phosphonomethyl)glycine, there were differences between the pure compound (free acid form) and the most common commercial formulation (which also contains isopropylamine) in terms of supporting and inhibiting ferric reductase activity and growth. Overall, these results suggest that photosynthetic organisms that use a reductive strategy for iron acquisition both require, and are potentially simultaneously inhibited by, ferric chelators. Furthermore, these results also may provide an explanation for the frequently contradictory results of N-(phosphonomethyl)glycine application to crops: we suggest that low concentrations of this molecule likely solubilize Fe(III), making it available for plant growth, but that higher (but sub-lethal) concentrations decrease iron acquisition by inhibiting ferric reductase activity.
Collapse
Affiliation(s)
- Mathew B Sonier
- Department of Biology, University of Regina, Regina, SK, S4S 0A2, Canada
| | | |
Collapse
|
23
|
Zobiole LHS, Oliveira RS, Visentainer JV, Kremer RJ, Bellaloui N, Yamada T. Glyphosate affects seed composition in glyphosate-resistant soybean. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4517-22. [PMID: 20307082 DOI: 10.1021/jf904342t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The cultivation of glyphosate-resistant (GR) soybeans has continuously increased worldwide in recent years mainly due to the importance of glyphosate in current weed management systems. However, not much has been done to understand eventual effects of glyphosate application on GR soybean physiology, especially those related to seed composition with potential effects on human health. Two experiments were conducted to evaluate the effects of glyphosate application on GR soybeans compared with its near-isogenic non-GR parental lines. Results of the first experiment showed that glyphosate application resulted in significant decreases in shoot nutrient concentrations, photosynthetic parameters, and biomass production. Similar trends were observed for the second experiment, although glyphosate application significantly altered seed nutrient concentrations and polyunsaturated fatty acid percentages. Glyphosate resulted in significant decreases in polyunsaturated linoleic acid (18:2n-6) (2.3% decrease) and linolenic acid (18:3n-3) (9.6% decrease) and a significant increase in monounsaturated fatty acids 17:1n-7 (30.3% increase) and 18:1n-7 (25% increase). The combined observations of decreased photosynthetic parameters and low nutrient availability in glyphosate-treated plants may explain potential adverse effects of glyphosate in GR soybeans.
Collapse
Affiliation(s)
- Luiz H S Zobiole
- Center for Advanced Studies in Weed Research (NAPD), Agronomy Department.
| | | | | | | | | | | |
Collapse
|
24
|
Reddy KN, Bellaloui N, Zablotowicz RM. Glyphosate effect on shikimate, nitrate reductase activity, yield, and seed composition in corn. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:3646-50. [PMID: 20180575 DOI: 10.1021/jf904121y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
When glyphosate is applied to glyphosate-resistant (GR) crops, drift to nonglyphosate-resistant (non-GR) crops may cause significant injury and reduce yields. Tools are needed to quantify injury and predict crop losses. In this study, glyphosate drift was simulated by direct application at 12.5% of the recommended label rate to non-GR corn (Zea mays L.) at 3 or 6 weeks after planting (WAP) during two field seasons in the Mississippi delta region of the southeastern USA. Visual plant injury, shikimate accumulation, nitrate reductase activity, leaf nitrogen, yield, and seed composition were evaluated. Effects were also evaluated in GR corn and GR corn with stacked glufosinate-resistant gene at the recommended label rate at 3 and 6 WAP. Glyphosate at 105 g ae/ha was applied once at 3 or 6 weeks after planting to non-GR corn. Glyphosate at 840 (lower label limit) or 1260 (upper label limit) g ae/ha was applied twice at 3 and 6 WAP to transgenic corn. Glyphosate caused injury (45-55%) and increased shikimate levels (24-86%) in non-GR compared to nontreated corn. In non-GR corn, glyphosate drift did not affect starch content but increased seed protein 8-21% while reducing leaf nitrogen reductase activity 46-64%, leaf nitrogen 7-16%, grain yield 49-54%, and seed oil 18-23%. In GR and GR stacked with glufosinate-resistant corn, glyphosate applied at label rates did not affect corn yield, leaf and seed nitrogen, or seed composition (protein, oil, and starch content). Yet, nitrate reductase activity was reduced 5-19% with glyphosate at 840 + 840 g/ha rate and 8-42% with glyphosate at 1260 + 1260 g/ha rate in both GR and GR stacked corn. These results demonstrate the potential for severe yield loss in non-GR corn exposed to glyphosate drift.
Collapse
Affiliation(s)
- Krishna N Reddy
- Crop Production Systems Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Stoneville, Mississippi 38776, USA.
| | | | | |
Collapse
|
25
|
Bellaloui N, Gillen AM. Soybean seed protein, oil, fatty acids, N, and S partitioning as affected by node position and cultivar differences. ACTA ACUST UNITED AC 2010. [DOI: 10.4236/as.2010.13014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|