1
|
Homa J, Konończuk K, Frankowski R, Zgoła-Grześkowiak A, Ławniczak Ł, Chrzanowski Ł, Stachowiak W, Niemczak M. Cations impact the biodegradation of iodosulfuron-methyl herbicidal ionic liquids by fungi. ENVIRONMENTAL TECHNOLOGY 2024:1-14. [PMID: 38849972 DOI: 10.1080/09593330.2024.2357696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/12/2024] [Indexed: 06/09/2024]
Abstract
In the framework of this study, six fungal isolates which demonstrated a high capability for biodegrading iodosulphuron-methyl sodium as well as herbicidal ionic liquids based on this herbicide were isolated from different soil samples. The isolates were identified based on the ITS region, whereas biodegradation residues were determined based on LC-MS/MS. Depending on the isolate, the half-lives values of the biodegraded herbicide or herbicidal ionic liquid ranged significantly from just 1.25 days to more than 40 days. The research findings unveiled that the structure of cations is a central limiting factor affecting fungal growth and herbicide transformation in case of ionic liquids. The length of the alkyl chain has been identified as the primary driver of herbicide toxicity, emphasizing the importance of structural factors in herbicide design. In cases when dodecyl(2-hydroxyethyl)dimethyl cation was used, its biodegradation ranged from 0 to approx. 20% and the biodegradability of the iodosulfuron-methyl was notably limited for the majority of the studied isolates. This knowledge provides guidance for development and selection of herbicides with reduced environmental impact. This study highlights the ecological importance of soil fungi, their potential role in herbicide biodegradation, the influence of cations on fungal growth and herbicide transformation, and the structural factors governing herbicide toxicity. Further research in these areas may lead to more efficient and environmentally friendly approaches to herbicide management.
Collapse
Affiliation(s)
- Jan Homa
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Kosma Konończuk
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Robert Frankowski
- Institute of Chemistry and Technical Electrochemistry, Poznań University of Technology, Poznań, Poland
| | | | - Łukasz Ławniczak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Łukasz Chrzanowski
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Witold Stachowiak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Michał Niemczak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| |
Collapse
|
2
|
Guo Y, Xu X, Lin J, Li H, Guo W, Wan S, Chen Z, Xu H, Lin F. The herbicide bensulfuron-methyl inhibits rice seedling development by blocking calcium ion flux in the OsCNGC12 channel. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 116:1218-1233. [PMID: 37574927 DOI: 10.1111/tpj.16418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023]
Abstract
Identification of translocator protein-related genes involved in bensulfuron-methyl (BSM) uptake and transport in rice could facilitate the development of herbicide-tolerant cultivars by inactivating them. This study found that the OsCNGC12 mutants not only reduced BSM uptake but also compromised the Ca2 ⁺ efflux caused by BSM in the roots, regulating dynamic equilibrium of Ca2 ⁺ inside the cell and conferring non-target-site tolerance to BSM.
Collapse
Affiliation(s)
- Yating Guo
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaohui Xu
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Jinbei Lin
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Haiqing Li
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Weikang Guo
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Shuqing Wan
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zepeng Chen
- China National Tobacco Corporation Guangdong Branch, Guangzhou, 510642, China
| | - Hanhong Xu
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Fei Lin
- National Key Laboratory of Green Pesticide/Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| |
Collapse
|
3
|
Liu B, Wang W, Qiu J, Huang X, Qiu S, Bao Y, Xu S, Ruan L, Ran T, He J. Crystal structures of herbicide-detoxifying esterase reveal a lid loop affecting substrate binding and activity. Nat Commun 2023; 14:4343. [PMID: 37468532 DOI: 10.1038/s41467-023-40103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 07/11/2023] [Indexed: 07/21/2023] Open
Abstract
SulE, an esterase, which detoxifies a variety of sulfonylurea herbicides through de-esterification, provides an attractive approach to remove environmental sulfonylurea herbicides and develop herbicide-tolerant crops. Here, we determined the crystal structures of SulE and an activity improved mutant P44R. Structural analysis revealed that SulE is a dimer with spacious binding pocket accommodating the large sulfonylureas substrate. Particularly, SulE contains a protruding β hairpin with a lid loop covering the active site of the other subunit of the dimer. The lid loop participates in substrate recognition and binding. P44R mutation altered the lid loop flexibility, resulting in the sulfonylurea heterocyclic ring repositioning to a relative stable conformation thus leading to dramatically increased activity. Our work provides important insights into the molecular mechanism of SulE, and establish a solid foundation for further improving the enzyme activity to various sulfonylurea herbicides through rational design.
Collapse
Affiliation(s)
- Bin Liu
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
- College of Life Sciences, Jiangxi Normal University, Nanchang, 330022, China
| | - Weiwu Wang
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiguo Qiu
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xing Huang
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shenshen Qiu
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yixuan Bao
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Siqiong Xu
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Luyao Ruan
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tingting Ran
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Jian He
- Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| |
Collapse
|
4
|
Aguiar ASN, Costa RF, Borges LL, Dias LD, Camargo AJ, Napolitano HB. Molecular basis of two pyrimidine-sulfonylurea herbicides: from supramolecular arrangement to acetolactate synthase inhibition. J Mol Model 2023; 29:241. [PMID: 37436478 DOI: 10.1007/s00894-023-05629-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/21/2023] [Indexed: 07/13/2023]
Abstract
CONTEXT The design and synthesis of safe and highly active sulfonylurea herbicides is still a challenge. Therefore, following some principles of structure-activity relationship (SAR) of sulfonylurea herbicides, this work focuses on evaluating two sulfonylurea derivatives bearing electron-withdrawing substituents, namely, -(CO)OCH3 and -NO2 on the aryl group, on herbicidal activity. To understand the effects caused by the substituent groups, the molecular and electronic structures of the sulfonylureas were evaluated by density functional theory. Likewise, the crystalline supramolecular arrangements of both compounds were analyzed by Hirshfeld surface, QTAIM, and NBO, with the aim of verifying changes in intermolecular interactions caused by substituent groups. Finally, through a toxicophoric analysis, we were able to predict the interacting groups in their biological target, acetolactate synthase, and verify the interactions with the binding site. METHODS All theoretical calculations were conducted using the highly parameterized empirical exchange-correlation functional M06-2X accompanied by the diffuse and polarized basis set 6-311++G(d,p). The atomic coordinates were obtained directly from the crystalline structures, and from the energies of the frontier molecular orbitals (HOMO and LUMO), chemical descriptors were obtained that indicated the influence of the functional groups in the sulfonylureas on the reactivity of the molecules. The intermolecular interactions in the crystals were analyzed using the Hirshfeld, QTAIM, and NBO surfaces. Toxicophoric modeling was performed by the PharmaGist webserver and molecular docking calculations were performed by the GOLD 2022.1.0 software package so that the ligand was fitted to the binding site in a 10 Å sphere. For this, genetic algorithm parameters were used using the ChemPLP scoring function for docking and ASP for redocking.
Collapse
Affiliation(s)
- Antônio S N Aguiar
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil.
| | - Rogério F Costa
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil
| | - Leonardo L Borges
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil
- Escola de Ciências Médicas e da Vida, Pontifícia Universidade Católica de Goiás, Goiânia, GO, Brazil
| | - Lucas D Dias
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil
- Laboratório de Novos Materiais, Universidade Evangélica de Goiás, Anápolis, GO, 75083-515, Brazil
| | - Ademir J Camargo
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil
| | - Hamilton B Napolitano
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil.
- Laboratório de Novos Materiais, Universidade Evangélica de Goiás, Anápolis, GO, 75083-515, Brazil.
| |
Collapse
|
5
|
Dweikat IM, Gelli M, Bernards M, Martin A, Jhala A. Mutations in the acetolactate synthase (ALS) enzyme affect shattercane (Sorghum bicolor) response to ALS-inhibiting herbicides. Hereditas 2023; 160:28. [PMID: 37344897 DOI: 10.1186/s41065-023-00291-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 06/09/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Shattercane [Sorghum bicolor (L.) Moench ssp. Arundinaceum (Desv.)] is a competitive weed in North America's corn, soybean, sorghum, and other agronomic crops. Control of shattercane with POST herbicides in corn became possible with the introduction of acetolactate synthase (ALS)-inhibiting herbicides in the 1980s, and their extensive use resulted in the evolution of ALS-inhibitors resistant shattercane. RESULTS Shattercane seeds were collected from 16 south-eastern and south-central Nebraska fields that were treated with primisulfuron for three consecutive years. Three resistant plants were found in greenhouse evaluations of more than 30,000 plants. Results from a greenhouse bioassay conducted to assess the response of each shattercane biotype to ALS-inhibiting herbicides showed a differential response to ALS inhibitors within and between chemical classes. Biotype P8-30 was resistant or partially resistant to all ALS-inhibiting herbicides applied and displayed a unique amino acid sequence substitution (Trp574 to Leu) relative to the other two resistant biotypes, P2-205 and P9-102. Whole plant dose-response studies confirmed a 4- to the 12-fold level of primisulfuron resistance in three shattercane biotypes compared with the known primisulfuron-susceptible shattercane biotype. The ALS gene was sequenced using primers designed from the corn ALS sequence to identify mutations in the ALS gene that confer resistance. A total of seven nucleotide substitutions were detected in the three herbicide-resistant biotypes P2-205, P8-30, and P9-102. These biotypes are being crossed to adapted sorghum lines (grain, sweet, and forage) to broaden germplasm with resistance to ALS-inhibiting herbicides. CONCLUSION The discovery of these mutants should accelerate the development of sorghum genotypes that tolerate ALS-based herbicides, which provide additional choices for sorghum farmers to control weeds, especially grasses, in their fields.
Collapse
Affiliation(s)
- Ismail M Dweikat
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA.
| | - Malleswari Gelli
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA
| | - Mark Bernards
- Department of Agronomy, Crop Science and Weed Control, Western Illinois University, Macomb, IL, 61455, USA
| | - Alex Martin
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA
| | - Amit Jhala
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA
| |
Collapse
|
6
|
Zou Y, Zhao B, Cao S, Guan Y, Liu L, Ji M. Mutation at the 197 site and P450-mediated metabolic resistance are involved in bensulfuron-methyl resistance in Sagittaria trifolia. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 331:111700. [PMID: 37028456 DOI: 10.1016/j.plantsci.2023.111700] [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: 12/21/2022] [Revised: 04/02/2023] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
Sagittaria trifolia control is threatened by the emergence of resistance to acetolactate synthase (ALS)-inhibiting herbicides. Hence, we systematically uncovered the molecular mechanism of resistance to the main herbicide (bensulfuron-methyl) in Liaoning Province from target-site and non-target-site resistance perspectives. The suspected resistant population (TR-1) exhibited high-level resistance. A new amino acid substitution (Pro-197-Ala) in resistant Sagittaria trifolia for ALS was detected, and the molecular docking results showed that the spatial structure of ALS changed significantly after the substitution, manifested by an increase in the number of contacted amino acid residues and the disappearance of hydrogen bonds. Dose-response test of transgenic Arabidopsis thaliana further demonstrated that the Pro-197-Ala substitution conferred bensulfuron-methyl resistance. The assays found that the sensitivity of the ALS enzyme in TR-1 to this herbicide was decreased in vitro; and this population had developed resistance to other types of ALS-inhibiting herbicides. Furthermore, the resistance of TR-1 to bensulfuron-methyl was significantly alleviated after co-treatment with a P450-inhibitor (malathion). TR-1 metabolized bensulfuron-methyl significantly faster than sensitive population (TS-1) did, but this gap was narrowed after malathion treatment. Overall, the resistance of Sagittaria trifolia to bensulfuron-methyl was derived from the mutation of the target-site gene and the enhancement of the P450s-mediated detoxification metabolism.
Collapse
Affiliation(s)
- Yize Zou
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, China
| | - Bochui Zhao
- Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050035, China
| | - Shihan Cao
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, China
| | - Yidi Guan
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, China
| | - Liru Liu
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, China
| | - Mingshan Ji
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, China.
| |
Collapse
|
7
|
Du Y, Wang M, Chen Y, Deng Y, Zhang L, Bai T, Ji M. Occurrence and mechanism of target-site resistance to bensulfuron-methyl in Monochoria korsakowii from China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 191:105379. [PMID: 36963949 DOI: 10.1016/j.pestbp.2023.105379] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/18/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Monochoria korsakowii is an increasingly significant threat to rice production across China, particularly in Liaoning province. Few studies have reported herbicide resistance in M. korsakowii, and resistance status and mechanisms are poorly understood. Here, thirty field populations of M. korsakowii were collected from 11 rice-growing regions of Liaoning, and 97% of populations had evolved resistance to bensulfuron-methyl (BM), with majority (24 of 28) showing high resistance levels (RI > 10). The first in-depth analysis of molecular features of AHAS1 and AHAS2 in BM-resistant populations showed that four Pro197 mutations (Pro197 to His, Ala, Leu or Ser) in AHAS1 and one mutation (Pro197Ser) in AHAS2 were identified. Notably, novel double Pro197Ser mutations co-occurred in both AHAS1 and AHAS2 in the most resistant line LN-20. Furthermore, resistant mutants were used to investigate the effect of Pro197 mutations on AHAS functionality, binding modes, gene expression and cross-resistance in M. korsakowii. All the detected Pro197 mutations considerably reduced in vitro AHAS sensitivity to BM by weakening hydrogen bonds and hydrophobic interactions in the predicted BM-AHAS complexes, especially the double Pro197Ser mutations. This novel resistance mutation combination slightly impacted the extractable AHAS activity, and increased the affinity and catalytic rate of pyruvate. Also, the AHAS expression level was significantly up-regulated. Moreover, all mutations provided resistance only to other sulfonylureas herbicides but not triazolopyrimidine or pyrimidinyl-benzoates herbicides. In conclusion, bensulfuron-methyl resistance in M. korsakowii was grim in Liaoning, China, and amino acid mutations on AHAS isozymes were the primary resistance mechanism. Double Pro197Ser mutations in both AHAS1 and AHAS2 confer higher herbicide resistance than single mutations in AHAS1. Thus, this work deepens our understanding of resistance status and mechanisms of M. korsakowii.
Collapse
Affiliation(s)
- Ying Du
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Minlong Wang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yan Chen
- Institute of Plant Protection, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
| | - Yunyan Deng
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Lulu Zhang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Tianlang Bai
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Mingshan Ji
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| |
Collapse
|
8
|
Yamada Y, Murase M, Goto Y, Mizoshita N. Perfluoroalkyl Group-Covered Organosilica Films for the Sensitive Detection of Sulfonylurea Herbicides in Laser Desorption/Ionization Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5006-5015. [PMID: 36896812 DOI: 10.1021/acs.jafc.2c09077] [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: 06/18/2023]
Abstract
Simple and rapid screening of agrochemicals greatly contributes to food and environmental safety. Matrix-free laser desorption/ionization mass spectrometry (LDI-MS) is an effective tool for high-throughput analysis of low-molecular-weight compounds. In this study, we report a UV-laser-absorbing organosilica film for the sensitive detection of various sulfonylurea herbicides using LDI-MS. Organosilica films with fluoroalkyl groups on the organic part are fabricated, followed by additional modification of the silica moiety with a fluoroalkyl coupling agent to cover the film surface with hydrophobic fluoroalkyl groups. Nanoimprinting is conducted to impart nanostructures on the film surface to enhance the LDI performance. The fabricated nanostructured organosilica films accomplish sensitive detection of cyclosulfamuron and azimsulfuron at concentrations as low as 1 fmol μL-1. The applicability of the nanostructured organosilica films is confirmed by the recovery of cyclosulfamuron and ethametsulfuron-methyl from pea sprouts (Pisum sativum) hydroponically grown in herbicide-spiked water at concentrations of 0.5 ppm.
Collapse
Affiliation(s)
- Yuri Yamada
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Masakazu Murase
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Yasutomo Goto
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Norihiro Mizoshita
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| |
Collapse
|
9
|
Gao Q, Huo J, Chen L, Yang D, Zhang W, Jia B, Xu X, Barnych B, Zhang J, Hammock BD. Development of immunoassay based on a specific antibody for sensitive detection of nicosulfuron in environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160247. [PMID: 36400293 PMCID: PMC10042444 DOI: 10.1016/j.scitotenv.2022.160247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/13/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
Nicosulfuron, one of the most widely used selective herbicides in corn field, can effectively control annual and perennial grass weeds, sedges, and some broadleaf weeds. The residual phytotoxicity of nicosulfuron in soil and water has become increasingly prominent. Therefore, an efficient method for detection of nicosulfuron was critical to ensure the sustainable and healthy development of agriculture and the ecological environment. In this paper, five nicosulfuron haptens which contained carboxyl group or aldehyde groups were designed and synthesized, and an indirect competitive immunoassay was developed for the first time. The assay showed an IC50 of 8.42 ng/mL and had negligible cross reactivities toward other sulfonylurea herbicides. In the spike and recovery studies, the recovery rate from soil samples was 95 %-104 %, and that of wheat roots was 92 %-98 %, which showed a good correlation with LC-MS analysis for nicosulfuron. The immunoassay was then used to quantify nicosulfuron concentration which could cause the obvious phytotoxic symptoms to wheat. Obvious symptoms of nicosulfuron phytotoxicity in wheat root was observed at the concentration of 0.068 ± 0.006 mg/kg (ELISA result) which was consistent with 0.072 ± 0.007 mg/kg obtained by LC-MS. The developed immunoassay method is an effective tool for environment contamination monitoring.
Collapse
Affiliation(s)
- Qingqing Gao
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Jingqian Huo
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China.
| | - Lai Chen
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Dongchen Yang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Weihong Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Bin Jia
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Xiaotong Xu
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Bogdan Barnych
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA 95616, United States of America
| | - Jinlin Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China.
| | - Bruce D Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA 95616, United States of America
| |
Collapse
|
10
|
A LuALS Mutation with High Sulfonylurea Herbicide Resistance in Linum usitatissimum L. Int J Mol Sci 2023; 24:ijms24032820. [PMID: 36769141 PMCID: PMC9917167 DOI: 10.3390/ijms24032820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
The cultivation of herbicide-resistant crops is an effective tool for weed management in agriculture. Weed control in flax (Linum usitatissimum L.) remains challenging due to the lack of available herbicide-resistant cultivars. In this study, a mutant resistant to acetolactate synthase (ALS)-inhibiting herbicides was obtained by ethyl methanesulphonate (EMS) mutagenesis using an elite cultivar, Longya10. Whole-plant dose-response assays revealed that, compared to Longya10, the mutant was 11.57-fold more resistant to tribenuron-methyl (TBM) and slightly resistant to imazethapyr (resistance index (mutant/Longya10) < 3). In vitro acetolactate synthase assays showed that the relative resistance of the mutant was 12.63 times more than that of Longya10. A biochemical analysis indicated that there was a Pro197Ser (relative to the Arabidopsis thaliana ALS sequence) substitution within the LuALS1, conferring high resistance to sulfonylurea herbicides in the mutant. Additionally, two cleaved amplified polymorphic sequence (CAPS) markers, BsaI-LuALS1 and EcoO109I-LuALS1, were developed based on the mutation site for marker assistant selection in breeding. Moreover, the mutant did not cause losses in natural field conditions. We find a mutant with ALS-inhibiting herbicide resistance chemically induced by EMS mutagenesis, providing a valuable germplasm for breeding herbicide-resistant flax varieties.
Collapse
|
11
|
Hassan ZU, Abbas Z, Bakht K, Ayoub MH, Ahmad S, Khan AM, Farooq U, Khan MS, Shaikh AJ. Dynamic light scattering and zeta-potential as a tool for understanding the mechanism of pesticides binding toward individual components of transition metal nanoparticles and graphene oxide hybrids. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:932-947. [PMID: 36469565 DOI: 10.1080/03601234.2022.2147348] [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: 06/17/2023]
Abstract
Pesticides present in their commercial formulations are studied for their preferable binding toward carbon-based graphene oxide (GO) or transition metal nanoparticles (Fe, Co, Ni, and Cu), present as hybrids. This simple study also reveals the mechanism of interaction of few selected different classes of pesticides, namely, λ-cyhalothrin, imidacloprid, and metsulfuron-methyl toward these hybrids. Individually, to study this comparative binding when hybrids are not used, the understanding of preferred binding toward any of these selected compounds could be challenging, costly, and time-consuming. Dynamic light scattering (DLS) is used to study the changes observed for hydrodynamic radius and zeta potential for the stability of the resulting products. This simple method can also be extended to identify the binding mechanism for other diverse set of combinations. These studies are supported by binding of GO with nanoparticles in batch adsorption and the best fit using Langmuir and Freundlich isotherms is presented. Moreover, pesticide adsorption toward GO-nanoparticle composites is also evidenced.
Collapse
Affiliation(s)
- Zia Ul Hassan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Zameer Abbas
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Khush Bakht
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | | | - Shehryar Ahmad
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Asad Muhammad Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Muhammad Saqib Khan
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad, Pakistan
| | | |
Collapse
|
12
|
Iyer MR, Bhattacharjee P, Kundu B, Rutland N, Wood CM. One-Pot Synthesis of Thio-Augmented Sulfonylureas via a Modified Bunte's Reaction. ACS OMEGA 2022; 7:31612-31620. [PMID: 36092569 PMCID: PMC9453971 DOI: 10.1021/acsomega.2c04816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
We report the development of a one-pot Bunte's reaction-enabled expeditious platform under aqueous conditions for the scalable conversion of sulfonylureas to synthetically versatile thio-sulfonylureas. The reaction was further propagated in the same pot to yield diverse chiral and achiral isothiosulfonyl analogs. The protocol enabled the synthesis of various drug-like molecules and was applied to an enantiomeric synthesis of a cannabinoid receptor antagonist SLV326.
Collapse
|
13
|
Yu Z, Gu W, Yang Y, Li X, Li X, Li T, Wang J, Su Z, Li X, Dai Y, Xu M, Zhang H. Whole-Genome Sequencing of a Chlorimuron-Ethyl-Degrading Strain: Chenggangzhangella methanolivorans CHL1 and Its Degrading Enzymes. Microbiol Spectr 2022; 10:e0182222. [PMID: 35861510 PMCID: PMC9430300 DOI: 10.1128/spectrum.01822-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/01/2022] [Indexed: 11/20/2022] Open
Abstract
Chlorimuron-ethyl is a commonly used sulfonylurea herbicide, and its long-term residues cause serious environmental problems. Biodegradation of chlorimuron-ethyl is effective and feasible, and many degrading strains have been obtained, but still, the genes and enzymes involved in this degradation are often unclear. In this study, whole-genome sequencing was performed on chlorimuron-ethyl-degrading strain, Chenggangzhangella methanolivorans CHL1. The complete genome of strain CHL1 contains one circular chromosome of 5,542,510 bp and a G+C content of 68.17 mol%. Three genes, sulE, pnbA, and gst, were predicted to be involved in the degradation of chlorimuron-ethyl, and this was confirmed by gene knockout and gene complementation experiments. The three genes were cloned and expressed in Escherichia coli BL21 (DE3) to allow for the evaluation of the catalytic activities of the respective enzymes. The glutathione-S-transferase (GST) catalyzes the cleavage of the sulfonylurea bridge of chlorimuron-ethyl, and the esterases, PnbA and SulE, both de-esterify it. This study identifies three key functional genes of strain CHL1 that are involved in the degradation of chlorimuron-ethyl and also provides new approaches by which to construct engineered bacteria for the bioremediation of environments polluted with sulfonylurea herbicides. IMPORTANCE Chlorimuron-ethyl is a commonly used sulfonylurea herbicide, worldwide. However, its residues in soil and water have a potent toxicity toward sensitive crops and other organisms, such as microbes and aquatic algae, and this causes serious problems for the environment. Microbial degradation has been demonstrated to be a feasible and promising strategy by which to eliminate xenobiotics from the environment. Many chlorimuron-ethyl-degrading microorganisms have been reported, but few studies have investigated the genes and enzymes that are involved in the degradation. In this work, two esterase-encoding genes (sulE, pnbA) and a glutathione-S-transferase-encoding gene (gst) responsible for the detoxification of chlorimuron-ethyl by strain Chenggangzhangella methanolivorans CHL1 were identified, then cloned and expressed in Escherichia coli BL21 (DE3). These key chlorimuron-ethyl-degrading enzymes are candidates for the construction of engineered bacteria to degrade this pesticide and enrich the resources for bioremediating environments polluted with sulfonylurea herbicides.
Collapse
Affiliation(s)
- Zhixiong Yu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Wu Gu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yi Yang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Xiang Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xinyu Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Tingting Li
- Shenyang Research Institute of Chemical Industry, Shenyang, China
| | - Jian Wang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Zhencheng Su
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Xu Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Yumeng Dai
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Mingkai Xu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Huiwen Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| |
Collapse
|
14
|
Ge L, Wang X, Hou JW, Ni ZJ, Liu WR, Bao J, Wei YL. Study on degradation characteristics of imazamox by Streptomycetaceae. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:470-478. [PMID: 35438041 DOI: 10.1080/03601234.2022.2064673] [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: 06/14/2023]
Abstract
The residues of imazamox (IMX) will cause phytotoxicity to subsequent crops after long-term use, and will also pollute the soil and its surrounding environment. This study isolates and identifies two strains of Streptomycetaceae JX02 and JX06 that can effectively degrade IMX. Use response surface method Box-Behnken design to optimize physicochemical parameters. The optimal degradation conditions of strains JX02 and JX06 are obtained and verified: IMX concentration is 150 mg L-1, the initial dosage is 9.9%, 9.1% (OD600 = 0.1), the temperature is 26.4 and 27.5 °C, and pH value is 7.0 and 7.7, respectively. The degradation rates of 150 mg L-1 IMX detected by HPLC within 4 d were 99 and 94%, respectively. After adding strains JX02 and JX06, the half-life of IMX in the soil is shortened to 11 d and 13 d, indicating that Streptomycetaceae had a positive effect on the remediation of soil. It is expected to provide scientific information for the rational use, environmental safety evaluation of IMX, and provide a basis for future research and development of microbial agents.
Collapse
Affiliation(s)
- Ling Ge
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Xin Wang
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Jia-Wen Hou
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Zi-Jun Ni
- Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Wen-Rui Liu
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Jia Bao
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Yu-Lian Wei
- Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| |
Collapse
|
15
|
Wu L, Gu YC, Li YH, Zhou S, Wang ZW, Li ZM. Synthesis, Herbicidal Activity, Crop Safety and Soil Degradation of Pyrimidine- and Triazine-Substituted Chlorsulfuron Derivatives. Molecules 2022; 27:2362. [PMID: 35408768 PMCID: PMC9000356 DOI: 10.3390/molecules27072362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/01/2022] [Accepted: 04/05/2022] [Indexed: 11/25/2022] Open
Abstract
Chlrosulfuron, a classical sulfonylurea herbicide that exhibits good safety for wheat but causes a certain degree of damage to subsequent corn in a wheat-corn rotation mode, has been suspended field application in China since 2014. Our previous study found that diethylamino-substituted chlorsulfuron derivatives accelerated the degradation rate in soil. In order to obtain sulfonylurea herbicides with good crop safety for both wheat and corn, while maintaining high herbicidal activities, a series of pyrimidine- and triazine-based diethylamino-substituted chlorsulfuron derivatives (W102-W111) were systematically evaluated. The structures of the synthesized compounds were confirmed with 1H NMR, 13C NMR, and HRMS. The preliminary biological assay results indicate that the 4,6-disubstituted pyrimidine and triazine derivatives could maintain high herbicidal activity. It was found that the synthesized compounds could accelerate degradation rates, both in acidic and alkaline soil. Especially, in alkaline soil, the degradation rate of the target compounds accelerated more than 22-fold compared to chlorsulfuron. Moreover, most chlorsulfuron analogs exhibited good crop safety for both wheat and corn at high dosages. This study provided a reference for the further design of new sulfonylurea herbicides with high herbicidal activity, fast degradation rates, and high crop safety.
Collapse
Affiliation(s)
- Lei Wu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China; (L.W.); (Y.-H.L.); (S.Z.)
| | - Yu-Cheng Gu
- Syngenta Jealott’s Hill International Research Centre, Bracknell RG42 6EY, Berkshire, UK;
| | - Yong-Hong Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China; (L.W.); (Y.-H.L.); (S.Z.)
| | - Sha Zhou
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China; (L.W.); (Y.-H.L.); (S.Z.)
| | - Zhong-Wen Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China; (L.W.); (Y.-H.L.); (S.Z.)
| | - Zheng-Ming Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China; (L.W.); (Y.-H.L.); (S.Z.)
| |
Collapse
|
16
|
Chand D, Banerjee T, Singh N, Singh SB. Persistence and transformation of flucetosulfuron herbicide in soil as affected by biotic and abiotic factors. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:233-242. [PMID: 35263242 DOI: 10.1080/03601234.2022.2047572] [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: 06/14/2023]
Abstract
Effect of biotic and abiotic factors of soil on persistence and transformation of flucetosulfuron was studied in three soils from paddy growing zones of India. Herbicide residues in three soils dissipated with half-life ranging from 1.41 to 8.38 and 0.58 to 1.14 days under sterile and non-sterile conditions, respectively. Acidic pH and soil microbial activity contributed more toward the degradation of flucetosulfuron in soil. Under flooded soils, dissipation was bit slower than under field capacity moisture level. Five transformation products were identified with LC-MS/MS analysis. Ester hydrolysis and sulfonyl urea bridge cleavage seems to be the major transformation pathways for flucetosulfuron in soil.
Collapse
Affiliation(s)
- Debdas Chand
- Division of Agricultural Chemicals, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Tirthankar Banerjee
- Division of Agricultural Chemicals, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Neera Singh
- Division of Agricultural Chemicals, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Shashi Bala Singh
- Division of Agricultural Chemicals, ICAR - Indian Agricultural Research Institute, New Delhi, India
| |
Collapse
|
17
|
Keuler T, Ferber D, Marleaux M, Geyer M, Gütschow M. Structure-Stability Relationship of NLRP3 Inflammasome-Inhibiting Sulfonylureas. ACS OMEGA 2022; 7:8158-8162. [PMID: 35284735 PMCID: PMC8908490 DOI: 10.1021/acsomega.2c00125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
In recent drug development efforts, particular emphasis has been devoted to the chemical interference with the NLRP3 inflammasome. A series of 12 tailored sulfonylureas was designed, prepared through convergent syntheses with a final sodium hydride-promoted reaction of isocyanates and sulfonamides, and subjected to a systematic, high-performance liquid chromatography-based survey of the chemical stability, a critical issue of sulfonylureas in terms of preparation, storage, and application. NLRP3 binding was determined by surface plasmon resonance spectroscopy. Sulfonylurea 2 was identified to be equipotent and similarly stable compared to the prototypical NLRP3 inhibitor MCC950.
Collapse
Affiliation(s)
- Tim Keuler
- Pharmaceutical
Institute, University of Bonn, 53121 Bonn, Germany
| | - Dominic Ferber
- Pharmaceutical
Institute, University of Bonn, 53121 Bonn, Germany
| | - Michael Marleaux
- Institute
of Structural Biology, University of Bonn, 53127 Bonn, Germany
| | - Matthias Geyer
- Institute
of Structural Biology, University of Bonn, 53127 Bonn, Germany
| | - Michael Gütschow
- Pharmaceutical
Institute, University of Bonn, 53121 Bonn, Germany
| |
Collapse
|
18
|
Maznah Z, Ismail BS, Ooi KE. Evaluation on persistence and mobility of metsulfuron-methyl at oil palm plantation: residue field trial experiment versus VARLEACH model. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:19731-19740. [PMID: 34718969 DOI: 10.1007/s11356-021-17172-4] [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: 08/17/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
The present paper discussed the comparison of the persistence and mobility of metsulfuron-methyl from a residue field trial experiment and simulation using a VARLEACH model. The residue field trial experiment was performed at Sungai Buloh Oil Palm Estate, Selangor. The plots were treated with metsulfuron-methyl at two treatment rates of 15 g a.i ha-1 (T1) and 30 g a.i ha-1 (T2). Soil samples were collected at 0, 1, 3, 7, 14, 21, 30, 60 and 90 days after treatment (DAT) and analysed subsequently by HPLC-UV. The results show that metsulfuron-methyl degraded rapidly in the soil with the half-life (t½) of 6.3 days in T1 and 7.9 days in T2. The simulation of VARLEACH model gave similar pattern of persistence and mobility of metsulfuron-methyl in the soil profile. However, total residues and the mobility of the metsulfuron-methyl were poorly simulated by the VARLEACH model due to consistent overestimation of the quantified residues. Results indicated that the metsulfuron-methyl lost more rapidly than the prediction values from VARLEACH model. In this case, simulation models which use transformation routines similar and which include additional degraded processes such as leaching, volatilisation, plant uptake or runoff could be considered. Albeit, overestimated values on the concentrations of metsulfuron-methyl are reported using VARLEACH model, the model still can be used as rapid and fast approach to predict the behaviour of pesticide at minimum cost.
Collapse
Affiliation(s)
- Zainol Maznah
- Malaysian Palm Oil Board (MPOB), No. 6 Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.
| | - B Sahid Ismail
- School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600, Bangi, Selangor, Malaysia
| | - Kok Eng Ooi
- School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600, Bangi, Selangor, Malaysia
| |
Collapse
|
19
|
Degradation of 5-Dialkylamino-Substituted Chlorsulfuron Derivatives in Alkaline Soil. Molecules 2022; 27:molecules27051486. [PMID: 35268587 PMCID: PMC8911686 DOI: 10.3390/molecules27051486] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 01/27/2023] Open
Abstract
Sulfonylurea herbicides are widely used as acetolactate synthase (ALS) inhibitors due to their super-efficient activity. However, some sulfonylurea herbicides show toxicity under crop rotation due to their long degradation time, for example, chlorsulfuron. Our research goal is to obtain chlorsulfuron-derived herbicides with controllable degradation time, good crop safety and high herbicidal activities. Based on our previously reported results in acidic soil, we studied the degradation behaviors of 5-dialkylamino-substituted chlorsulfuron derivatives (NL101–NL108) in alkaline soil (pH 8.39). The experimental data indicate that addition of the 5-dialkylamino groups on the benzene ring of chlorsulfuron greatly accelerated degradation in alkaline soil. These chlorsulfuron derivatives degrade 10.8 to 51.8 times faster than chlorsulfuron and exhibit excellent crop safety on wheat and corn (through pre-emergence treatment). With a comprehensive consideration of structures, bioassay activities, soil degradation and crop safety, it could be concluded that 5-dialkylamino-substituted chlorsulfuron derivatives are potential green sulfonylurea herbicides for pre-emergence treatment on both wheat and corn. The study also provides valuable information for the discovery of new sulfonylurea herbicides for crop rotation.
Collapse
|
20
|
Effects of Metribuzin Herbicide on Some Morpho-Physiological Characteristics of Two Echinacea Species. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8020169] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Echinacea is a perennial plant that is used for its phytotherapeutic potential. Echinacea crops are often affected by invasive weeds. One of the most effective strategies in weed control is the use of chemicals such as herbicides. However, herbicides also affect the physiological and morphological processes of Echinacea. For this reason, the aim of this study was to determine the effects of different dosages (0, 250, 500, 750, 1000, and 1250 g ha−1) of the postemergent herbicide metribuzin on some morphological and physiological characteristics of Echinacea purpurea and Echinacea angustifolia collected from different locations in Iran (E. purpurea from the Shiraz and Isfahan regions and E. angustifolia from the Ardestan and Kazerun regions). Application of metribuzin decreased leaf dry weight for both Echinacea species at high doses (750 and 1250 g ha−1). At high metribuzin dose (1250 g ha−1), E. purpurea Shiraz leaves showed an increase in MDA (malondialdehyde) up to 9.14, while in other species the MDA content was lower. Minimum and maximum fluorescence increased at both the registered dosage (500 g ha−1) and at high doses (750–1250 g ha−1) of metribuzin treatments in both species. The Fv/Fm (maximum quantum yield) value was reduced in herbicide treated species, compared to the control, starting at the 250 g ha−1 dose, and was lowest at 750 g ha−1 dose. The results of this study indicate that metribuzin has adverse effects on the physiology and morphology of Echinacea species at dosages above 500 g ha−1.
Collapse
|
21
|
Kreiner JM, Sandler G, Stern AJ, Tranel PJ, Weigel D, Stinchcombe J, Wright SI. Repeated origins, widespread gene flow, and allelic interactions of target-site herbicide resistance mutations. eLife 2022; 11:70242. [PMID: 35037853 PMCID: PMC8798060 DOI: 10.7554/elife.70242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 01/16/2022] [Indexed: 11/13/2022] Open
Abstract
Causal mutations and their frequency in agricultural fields are well-characterized for herbicide resistance. However, we still lack understanding of their evolutionary history: the extent of parallelism in the origins of target-site resistance (TSR), how long these mutations persist, how quickly they spread, and allelic interactions that mediate their selective advantage. We addressed these questions with genomic data from 19 agricultural populations of common waterhemp (Amaranthus tuberculatus), which we show to have undergone a massive expansion over the past century, with a contemporary effective population size estimate of 8 x 107. We found variation at seven characterized TSR loci, two of which had multiple amino acid substitutions, and three of which were common. These three common resistance variants show extreme parallelism in their mutational origins, with gene flow having shaped their distribution across the landscape. Allele age estimates supported a strong role of adaptation from de novo mutations, with a median age of 30 suggesting that most resistance alleles arose soon after the onset of herbicide use. However, resistant lineages varied in both their age and evidence for selection over two different timescales, implying considerable heterogeneity in the forces that govern their persistence. Two such forces are intra- and inter-locus allelic interactions; we report a signal of extended haplotype competition between two common TSR alleles, and extreme linkage with genome-wide alleles with known functions in resistance adaptation. Together, this work reveals a remarkable example of spatial parallel evolution in a metapopulation, with important implications for the management of herbicide resistance.
Collapse
Affiliation(s)
- Julia M Kreiner
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - George Sandler
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - Aaron J Stern
- Graduate Group in Computational Biology, University of California, Berkeley, Berkeley, United States
| | - Patrick J Tranel
- Department of Crop Sciences, University of Illinois Urbana-Champaign, Urbana, United States
| | - Detlef Weigel
- Department of Molecular Biology, Max Planck Institute for Developmental Biology, Tübingen, Germany
| | - John Stinchcombe
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - Stephen Isaac Wright
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| |
Collapse
|
22
|
Genomic regions associated with herbicide tolerance in a worldwide faba bean (Vicia faba L.) collection. Sci Rep 2022; 12:158. [PMID: 34996977 PMCID: PMC8741826 DOI: 10.1038/s41598-021-03861-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 12/09/2021] [Indexed: 01/18/2023] Open
Abstract
Weeds represent one of the major constraints for faba bean crop. The identification of molecular markers associated with key genes imparting tolerance to herbicides can facilitate and fasten the efficient and effective development of herbicide tolerant cultivars. We phenotyped 140 faba bean genotypes in three open field experiments at two locations in Lebanon and Morocco against three herbicide treatments (T1 metribuzin 250 g ai/ha; T2 imazethapyr 75 g ai/ha; T3 untreated) and one in greenhouse where T1 and T3 were applied. The same set was genotyped using genotyping by sequencing (GBS) which yield 10,794 high quality single nucleotide polymorphisms (SNPs). ADMIXTURE software was used to infer the population structure which revealed two ancestral subpopulations. To identify SNPs associated with phenological and yield related traits under herbicide treatments, Single-trait (ST) and Multi-trait (MT) Genome Wide Association Studies (GWAS) were fitted using GEMMA software, showing 10 and 14 highly significant associations, respectively. Genomic sequences containing herbicide tolerance associated SNPs were aligned against the NCBI database using BLASTX tool using default parameters to annotate candidate genes underlying the causal variants. SNPs from acidic endochitinase, LRR receptor-like serine/threonine-protein kinase RCH1, probable serine/threonine-protein kinase NAK, malate dehydrogenase, photosystem I core protein PsaA and MYB-related protein P-like were significantly associated with herbicide tolerance traits.
Collapse
|
23
|
Rizzi C, Villa S, Cuzzeri AS, Finizio A. Use of the Species Sensitivity Distribution Approach to Derive Ecological Threshold of Toxicological Concern (eco-TTC) for Pesticides. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:12078. [PMID: 34831835 PMCID: PMC8623465 DOI: 10.3390/ijerph182212078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022]
Abstract
The species sensitivity distribution (SSD) calculates the hazardous concentration at which 5% of species (HC5) will be potentially affected. For many compounds, HC5 values are unavailable impeding the derivation of SSD curves. Through a detailed bibliographic survey, we selected HC5 values (from acute toxicity tests) for freshwater aquatic species and 129 pesticides. The statistical distribution and variability of the HC5 values within the chemical classes were evaluated. Insecticides are the most toxic compounds in the aquatic communities (HC5 = 1.4 × 10-3 µmol L-1), followed by herbicides (HC5 = 3.3 × 10-2 µmol L-1) and fungicides (HC5 = 7.8 µmol L-1). Subsequently, the specificity of the mode of action (MoA) of pesticides on freshwater aquatic communities was investigated by calculating the ratio between the estimated baseline toxicity for aquatic communities and the HC5 experimental values gathered from the literature. Moreover, we proposed and validated a scheme to derive the ecological thresholds of toxicological concern (eco-TTC) of pesticides for which data on their effects on aquatic communities are not available. We proposed eco-TTCs for different classes of insecticides, herbicides, and fungicides with a specific MoA, and three eco-TTCs for those chemicals with unavailable MoA. We consider the proposed approach and eco-TTC values useful for risk management purposes.
Collapse
Affiliation(s)
| | - Sara Villa
- Department of Earth and Environmental Sciences DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (C.R.); (A.S.C.); (A.F.)
| | | | | |
Collapse
|
24
|
Tang W, Liu S, Yu X, Yang Y, Zhou X, Lu Y. The Basis of Tolerance Mechanism to Metsulfuron-Methyl in Roegneria kamoji (Triticeae: Poaceae). PLANTS 2021; 10:plants10091823. [PMID: 34579356 PMCID: PMC8466435 DOI: 10.3390/plants10091823] [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: 08/03/2021] [Revised: 08/26/2021] [Accepted: 08/29/2021] [Indexed: 11/16/2022]
Abstract
Roegneria kamoji, a perennial monocot weed that belongs to the tribe Triticeae (family: Poaceae), is an emerging problematic weed in winter wheat (Triticum aestivum) fields in China. We have previously confirmed four R. kamoji populations tolerant to acetyl-CoA carboxylase (ACCase) inhibitors, and failed control of these populations by metsulfuron-methyl was observed. The objective of this study was to characterize the level of tolerance to metsulfuron-methyl, the basis of tolerance mechanism, and cross-tolerance to acetolactate synthase (ALS) inhibitors in R. kamoji. A whole-plant dose–response assay showed that plants of all R. kamoji populations (both from wheat fields and uncultivated areas) exhibited high tolerance to metsulfuron-methyl, based on their 100% survival at 6-fold recommended field dose (RFD) and ED50 values >6.84-fold RFD, no susceptible population was found. Gene sequencing indicated that no reported amino acid substitutions associated with resistance to ALS inhibitor were found in the ALS gene among the R. kamoji populations. Pretreatment with the known cytochrome P450 monooxygenases (CytP450) inhibitor malathion reduced the ED50 values of metsulfuron-methyl in two R. kamoji populations. These populations also exhibited cross-tolerance to RFD of mesosulfuron-methyl and bispyribac-sodium. The activities of glutathione-S-transferase (GST) and CytP450 could be induced by metsulfuron-methyl in R. kamoji, which is similar to the known tolerant crop wheat. This is the first report elucidating metsulfuron-methyl tolerance in R. kamoji. The reversal of tolerance by malathion and the GST and/or CytP450 enhanced herbicide metabolism suggests that non-target-site mechanisms confer tolerance to metsulfuron-methyl in R. kamoji.
Collapse
Affiliation(s)
- Wei Tang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (W.T.); (X.Y.); (Y.Y.)
| | - Shengnan Liu
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China;
| | - Xiaoyue Yu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (W.T.); (X.Y.); (Y.Y.)
| | - Yongjie Yang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (W.T.); (X.Y.); (Y.Y.)
| | - Xiaogang Zhou
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China;
- Correspondence: (X.Z.); (Y.L.); Tel.: +86-028-84590090 (X.Z.); +86-0571-63370333 (Y.L.)
| | - Yongliang Lu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (W.T.); (X.Y.); (Y.Y.)
- Correspondence: (X.Z.); (Y.L.); Tel.: +86-028-84590090 (X.Z.); +86-0571-63370333 (Y.L.)
| |
Collapse
|
25
|
A promising electrochemiluminescence herbicide sensor based on ternary nanocomposite and boron nitride quantum dots for trace analysis of tribenuron-methyl in environmental samples. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
26
|
Abdel-Wahab SIZ, Aioub AAA, Salem REME, El-Sobki AEA. Electrophoretic banding patterns of protein induced by pinoxaden, tribenuron-methyl, and pyroxsulam herbicides in wheat leaves (Triticum aestivum L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:30077-30089. [PMID: 33586103 DOI: 10.1007/s11356-021-12676-5] [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: 12/03/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Herbicides are the most effective tool against weed flora in cereal crops that help to maintain and increase crop yields. This investigation was conducted in the winter season of 2018 to study the stress effect of three post-emergence herbicides including pinoxaden, tribenuron-methyl, and pyroxsulam on the biochemical changes at the molecular cell level of wheat. These herbicides were applied either lonely with a rate of 0.45 L.ha-1, 22.5 gm.ha-1, and 0.16 Ib a.i/A, respectively, or in combinations together on three Egyptian varieties of bread wheat known as Misr 1, Giza17 1, and Gemmiza 11. Firstly, the abovementioned herbicides were used at the recommended and half recommended doses with their combinations for these varieties to investigate DNA-protein linkage as a signal effect of herbicides at the molecular cell level.Our data showed that the treatment of wheat varieties with the tested herbicides induced new bands with low and high molecular weights of 37.49, 40.08, 146.55, and 147.23 KDa with relative mobility of 0.1574, 0.1603, 0.2166, and 0.2168, respectively. These bands were not presented in the control treatment, suggesting that it might be used as a biochemical marker for plant defense genes. Meanwhile, the control treatment exhibited only five or six bands in the three varieties. However, the tested varieties showed that the same number of bands, the molecular weights of bands, and their relative mobility were significantly varied between the single and the combinations treatment of herbicides. The best treatment was achieved by the combination between pinoxaden and tribenuron-methyl at a recommended dose which induced a large number of protein bands compared to the control treatment on the wheat variety cv. Misr 1, which gave one band with low molecular weight 71.44 KDa at Rf 0.1854 and other with the highest molecular weight 147.23 KDa at Rf 0.2168, compared to the control treatment.
Collapse
Affiliation(s)
- Sarah I Z Abdel-Wahab
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt.
| | - Ali A A Aioub
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Rehab E M E Salem
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Ahmed E A El-Sobki
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| |
Collapse
|
27
|
Mathiassen SK, Boutin C, Strandberg B, Carpenter D, Damgaard C. Effects of Low Doses of Herbicides on Different Endpoints in the Life Cycle of Nontarget Terrestrial Plants. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:1389-1404. [PMID: 33492680 DOI: 10.1002/etc.4992] [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: 08/10/2020] [Revised: 09/18/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Herbicide drift may cause adverse effects on natural and seminatural plant communities, and it has been debated whether the current ecological risk assessments are adequate to protect nontarget terrestrial plant species. In the present study, 9 nontarget terrestrial plant species with different lifespans (3 annual/6 perennial) belonging to 6 different plant families were exposed to 4 herbicides with different modes of action at the vegetative (6-8 leaf) and reproductive (bud) stages separately. The plant tests were conducted under controlled conditions in 2 greenhouses, 1 located in Denmark and 1 in Canada. For both growth stages, effects were recorded on vegetative (above-ground biomass 3 wk after treatment) and reproductive endpoints (number and germinability of seeds). In most cases, responses following exposure at the juvenile stage were greater than responses following exposure at the reproductive stage. For the combinations of herbicides and plant species included in the present study, we found that the sensitivities of vegetative and reproductive endpoints were equal, or else vegetative endpoints were more sensitive than reproductive endpoints. We also found that annual species were more sensitive than perennial species. The overall conclusions cover many different response patterns, and it is evident that some effects may not be found in the currently used standard tests. Generally, more pronounced effects were obtained in Denmark compared with Canada, highlighting the fact that even under standardized test conditions and following common guidelines, several uncontrollable factors can still induce variable results. Environ Toxicol Chem 2021;40:1389-1404. © 2021 SETAC.
Collapse
Affiliation(s)
| | - Céline Boutin
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Carleton University, Ottawa, Ontario, Canada
| | | | - David Carpenter
- Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment and Climate Change Canada, Carleton University, Ottawa, Ontario, Canada
| | | |
Collapse
|
28
|
Zhang YY, Gao S, Hoang MT, Wang ZW, Ma X, Zhai Y, Li N, Zhao LX, Fu Y, Ye F. Protective efficacy of phenoxyacetyl oxazolidine derivatives as safeners against nicosulfuron toxicity in maize. PEST MANAGEMENT SCIENCE 2021; 77:177-183. [PMID: 32652758 DOI: 10.1002/ps.6005] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 07/04/2020] [Accepted: 07/11/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Herbicide safeners mitigate crop damage without reducing herbicide efficacy. Here, the protective effects of phenoxyacetyl oxazolidine derivatives as potential safeners were evaluated with a view toward reducing injury caused by sulfonylurea herbicide nicosulfuron to sensitive maize varieties. RESULTS Growth indices demonstrated that the bioactivity of compound 9 (N-phenoxyacety-2-methyl-2,4-diethyl-1,3-oxazolidine) was superior to that of R-28725 and all other compounds tested. Compound 9 induced endogenous glutathione and upregulated glutathione-S-transferase (GST) in maize. Thus, it could enhance maize tolerance to nicosulfuron. Compared with the untreated water control group, the maximum reaction rate of GST was increased by 37.62%, while the maximum velocity of GST was decreased by 61.93% after treatment with compound 9. Acetolactate synthase relative activity was significantly enhanced in the case of treatment with compound 9, indicating the excellent protective effects of compound 9 against nicosulfuron in maize. CONCLUSIONS The present work demonstrates that phenoxyacetyl oxazolidine derivatives are potentially efficacious as herbicide safeners and merit further investigation.
Collapse
Affiliation(s)
- Yuan-Yuan Zhang
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Shuang Gao
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Minh-Tu Hoang
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Zi-Wei Wang
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Xin Ma
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Yue Zhai
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Na Li
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Li-Xia Zhao
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Ying Fu
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Fei Ye
- Department of Applied Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| |
Collapse
|
29
|
Obregón Alvarez D, Mendes KF, Tosi M, Fonseca de Souza L, Campos Cedano JC, de Souza Falcão NP, Dunfield K, Tsai SM, Tornisielo VL. Sorption-desorption and biodegradation of sulfometuron-methyl and its effects on the bacterial communities in Amazonian soils amended with aged biochar. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111222. [PMID: 32890950 DOI: 10.1016/j.ecoenv.2020.111222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/11/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
Sulfometuron-methyl is a broad-spectrum herbicide, used throughout Brazil; however, its environmental impacts in biochar (BC) amended soils is not fully understood. Biochar is known to enhance soil quality but can also have undesired effects such as altering the bioavailability and behavior of herbicides. Microbial communities can degrade herbicides such as sulfometuron-methyl in soils; however, they are known to be affected by BC. Therefore, it is important to understand the tripartite interaction between these factors. This research aimed to evaluate the sorption-desorption and biodegradation of sulfometuron-methyl in Amazonian soils amended with BC, and to assess the effects of the interactions between BC and sulfometuron-methyl on soil bacterial communities. Soil samples were collected from field plots amended with BC at three doses (0, 40 and 80 t ha-1) applied ten years ago. The herbicide sorption and desorption were evaluated using a batch equilibrium method. Mineralization and biodegradation studies were conducted in microcosms incubated with 14C-sulfometuron-methyl for 80 days. Systematic soil sampling, followed by DNA extraction, quantification (qPCR) and 16S rRNA amplicon sequencing were performed. The presence of BC increased the sorption of the herbicide to the soil by 11% (BC40) and 16% (BC80) compared to unamended soil. The presence of BC also affected the degradation of 14C-sulfometuron-methyl, reducing the mineralization rate and increasing the degradation half-life times (DT50) from 36.67 days in unamended soil to 52.11 and 55.45 days in BC40 and BC80 soils, respectively. The herbicide application altered the bacterial communities, affecting abundance and richness, and changing the taxonomic diversity (i.e., some taxa were promoted and other inhibited). A tripartite interaction was found between BC, the herbicide and soil bacterial communities, suggesting that it is important to consider the environmental impact of soil applied herbicides in biochar amended soils.
Collapse
Affiliation(s)
- Dasiel Obregón Alvarez
- Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Av. Centenário, N° 303, Piracicaba, São Paulo, 13400-970, Brazil; School of Environmental Sciences, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| | - Kassio Ferreira Mendes
- Department of Agronomy, Federal University of Viçosa, Avenida Peter Henry Rolfs, S/n, Viçosa, Minas Gerais, 36570-000, Brazil.
| | - Micaela Tosi
- School of Environmental Sciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Leandro Fonseca de Souza
- Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Av. Centenário, N° 303, Piracicaba, São Paulo, 13400-970, Brazil
| | - Johnny Carlos Campos Cedano
- Department of Agricultural Sciences, National Institute of Amazonian Research (INPA), Av. André Araújo, 2936, Aleixo, Manaus, Amazonas, 69060-001, Brazil
| | - Newton Paulo de Souza Falcão
- Department of Agricultural Sciences, National Institute of Amazonian Research (INPA), Av. André Araújo, 2936, Aleixo, Manaus, Amazonas, 69060-001, Brazil
| | - Kari Dunfield
- School of Environmental Sciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Siu Mui Tsai
- Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Av. Centenário, N° 303, Piracicaba, São Paulo, 13400-970, Brazil
| | - Valdemar Luiz Tornisielo
- Ecotoxicology Laboratory, Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Av. Centenário, N° 303, Piracicaba, São Paulo, 13400-970 Brazil
| |
Collapse
|
30
|
Yang TT, Zhang HW, Wang J, Li XY, Li X, Su ZC. High bioremediation potential of strain Chenggangzhangella methanolivorans CHL1 for soil polluted with metsulfuron-methyl or tribenuron-methyl in a pot experiment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:4731-4738. [PMID: 32951166 DOI: 10.1007/s11356-020-10825-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
Soil contamination caused by long-term application of metsulfuron-methyl and tribenuron-methyl has become an issue of increasing concern. In our previous study, strain Chenggangzhangella methanolivorans CHL1, capable of efficiently degrading sulfonylurea herbicides, was isolated. Here, the bioremediation potential of strain CHL1 was assessed for soil polluted with metsulfuron-methyl or tribenuron-methyl in a pot experiment. The growth parameters of waxy maize were measured on day 21 of the pot experiment. Additionally, the residues of metsulfuron-methyl and tribenuron-methyl in soils were analyzed, and the soil microbial community was investigated using a phospholipid fatty acids (PLFAs) method on days 1, 7, 14, and 21. The results indicated that strain CHL1 greatly accelerated the degradation of metsulfuron-methyl and tribenuron-methyl in soils. The degradation rates in the treatments inoculated with strain CHL1were all more than 91% after 7 days, significantly higher than the 25-36% degradation measured in non-inoculated treatments. Furthermore, strain CHL1 reduced the negative effects of tribenuron-methyl and metsulfuron-methyl on waxy maize growth, especially the primary root length. Moreover, inoculation with strain CHL1 also reduced the effects of tribenuron-methyl and metsulfuron-methyl on soil microbial biomass, diversity, and community structure. The present study demonstrates that strain CHL1 has great potential application to remediate soil contaminated with metsulfuron-methyl or tribenuron-methyl.
Collapse
Affiliation(s)
- Ting-Ting Yang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Hui-Wen Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Jian Wang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- Shenyang Research Institute of Chemical Industry Co. Ltd., Shenyang, 110021, China
| | - Xin-Yu Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
| | - Xu Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Zhen-Cheng Su
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| |
Collapse
|
31
|
Li Y, Zhang Q, Yu Y, Li X, Tan H. Integrated proteomics, metabolomics and physiological analyses for dissecting the toxic effects of halosulfuron-methyl on soybean seedlings (Glycine max merr.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 157:303-315. [PMID: 33157422 DOI: 10.1016/j.plaphy.2020.10.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
Halosulfuron methyl (HSM) is a herbicide widely used to control sedge and broad-leaved weeds during crop production, but its environmental residue may damage non-target crops. Here, proteomics and metabolomics methods were used to explore the phytotoxicity mechanisms of HSM against soybean (Glycine max Merr.). Soybean seedlings were exposed to 0.01, 0.05 and 0.5 mg/L HSM for 8 d. The HSM applications significantly reduced chlorophyll and carotenoid contents in HSM-treated seedlings. Additionally, chlorophyll a fluorescence was seriously affected. The glutathione, hydrogen peroxide and malondialdehyde contents, as well as antioxidant enzyme activities, significantly increased in seedlings exposed to HSM. Furthermore, five enzymes involved in the tricarboxylic acid (TCA) cycle, α-ketoglutarate dehydrogenase, isocitrate dehydrogenase, aconitase, malic dehydrogenase and succinate dehydrogenase, were inhibited to varying degrees in HSM-treated seedlings compared with controls. Proteomics results showed multiple differentially abundant proteins involved in chlorophyll synthesis, photosystem processes and chloroplast ATP synthetase were down-regulated. Metabolomics analyses revealed that metabolites involved in the TCA cycle decreased significantly. Moreover, metabolites and proteins related to reactive oxygen species detoxification accumulated. In conclusion, the phytotoxicity mechanisms of HSM against soybean mainly act by damaging the photosynthetic machinery, inhibiting chlorophyll synthesis, interrupting the TCA cycle and causing oxidative stress. These results provide new insights into the toxicity mechanisms of sulfonylurea herbicides against non-target crops.
Collapse
Affiliation(s)
- Yuanfu Li
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning, Guangxi, 530004, China
| | - Qiannan Zhang
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yinfang Yu
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning, Guangxi, 530004, China
| | - Xuesheng Li
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning, Guangxi, 530004, China
| | - Huihua Tan
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning, Guangxi, 530004, China.
| |
Collapse
|
32
|
Medo J, Hricáková N, Maková J, Medová J, Omelka R, Javoreková S. Effects of sulfonylurea herbicides chlorsulfuron and sulfosulfuron on enzymatic activities and microbial communities in two agricultural soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:41265-41278. [PMID: 32681330 DOI: 10.1007/s11356-020-10063-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Sulfonylurea herbicides are widely used for weed control in agriculture, and they are suspected to alter microbial communities and activities in the soil. This study investigates the impact of two sulfonylurea herbicides chlorsulfuron and sulfosulfuron on microbial community and activity in two different soils taken from two sites in west part of the Slovak Republic. The soil from the Malanta site was silt-loam luvisol with pH(H2O) 5.78 while the soil from the Stefanov site was sandy-loam regosol with pH(H2O) 8.25. These soils were not treated by sulfonylurea herbicides at least for 2 years prior to the study. In laboratory assay, the herbicides were applied to soil in their maximal recommended doses 26 and 25 g per hectare of chlorsulfuron and sulfosulfuron, respectively. Their effect was evaluated on the 3rd, 7th, 14th, 28th, 56th, and 112th day after application to soil. Illumina high-throughput amplicon sequencing of the 16S rRNA gene and ITS region was used to monitor changes on prokaryotic and fungal community composition. Enzymatic activity was evaluated using 11 substrates. Physiological profile of microbial community was analyzed using Biolog© ecoplates. Significant changes in enzymatic activity caused by the application of herbicides were found during the first 28 days. The application of herbicides altered the activity of cellobiohydrolase, arylsulphatase, dehydrogenase, phosphatase, and FDA hydrolase. Chlorsulfuron caused a more varying response of enzymatic activity than sulfosulfuron, and observed changes were not the same for both soils. In Malanta soil, chlorsulfuron decreased dehydrogenase activity while it was increased in the Stefanov soil. Phosphatase activity was decreased in both soils on 7th and 14th day. There were only minor changes in prokaryotic or fungal community or physiological profiles regarding pesticide application. Differences between soils and incubation time explained most of the variability in these parameters. Diversity indices, physiological parameters, and enzymatic activity decreased over time. The results have shown that chlorsulfuron and sulfosulfuron can affect the function and activity of the soil microbial community without significant change in its composition.
Collapse
Affiliation(s)
- Juraj Medo
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia.
| | - Nikola Hricáková
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia
| | - Jana Maková
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia
| | - Janka Medová
- Department of Mathematics, Constantine the Philosopher University in Nitra, Tr. A Hlinku 1, 949 74, Nitra, Slovakia
| | - Radoslav Omelka
- Department of Botany and Genetics, Constantine the Philosopher University in Nitra, Nábrežie mládeže 91, 949 74, Nitra, Slovakia
| | - Soňa Javoreková
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia
| |
Collapse
|
33
|
Guo Y, Cheng L, Long W, Gao J, Zhang J, Chen S, Pu H, Hu M. Synergistic mutations of two rapeseed AHAS genes confer high resistance to sulfonylurea herbicides for weed control. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:2811-2824. [PMID: 32556395 DOI: 10.1007/s00122-020-03633-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
A double mutant 5N of rapeseed was obtained with a synergistic effect of high resistance to sulfonylurea herbicide. Excellent weed control was observed in Ning R201 created by 5N resources. Sulfonylurea herbicides, which inhibit acetohydroxyacid synthase (AHAS), have become the most widely used herbicides worldwide. However, weed control in rapeseed crop production remains challenging in China due to the shortage of available herbicide-resistant cultivars. In this study, we developed a rapeseed line (PN19) with sulfonylurea herbicide resistance through seed mutagenesis. Molecular analysis revealed a Trp-574-Leu mutation in BnAHAS1-2R of PN19 according to the sequence of Arabidopsis thaliana, and an allele-specific cleaved amplified polymorphic sequence marker was developed to target the point mutation. A double mutant (5N) with very high sulfonylurea resistance was then created through pyramiding two mutant genes of PN19 and M342 by molecular marker-assisted selection. Herbicide resistance identification, toxicology testing, and an in vitro enzyme activity assay of AHAS in 5N indicated that each mutant was four and eight times more resistant to sulfonylurea than M342 and PN19, respectively. Protein structure analysis of AHAS1 demonstrated that the leucine of mutant Trp-574-Leu destroyed the original π-plane stacking effect of the local region for tribenuron-methyl binding, leading to herbicide tolerance. Isobole graph analysis showed a significant synergistic effect of the combination of two mutant genes in 5N for improved tolerance to sulfonylurea herbicides. Finally, we bred rapeseed variety Ning R201 using 5N herbicide resistance resources, and observed excellent weed control performance. Together, these results demonstrate the practical value of 5N application for optimizing and simplifying rapeseed cultivation in China.
Collapse
Affiliation(s)
- Yue Guo
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Li Cheng
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China
| | - Weihua Long
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Jianqin Gao
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Jiefu Zhang
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Song Chen
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Huiming Pu
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China.
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Maolong Hu
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Sub-center, National Center of Oil Crops Improvement, Key Laboratory of Cotton and Rapeseed (Nanjing), Ministry of Agriculture, Nanjing, 210014, China.
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| |
Collapse
|
34
|
Ha DD, Nguyen TO. Application of Methylopila sp. DKT for Bensulfuron-methyl Degradation and Peanut Growth Promotion. Curr Microbiol 2020; 77:1466-1475. [PMID: 32219473 DOI: 10.1007/s00284-020-01953-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/13/2020] [Indexed: 11/24/2022]
Abstract
Bensulfuron-methyl is an herbicide widely used for weed control although its residues cause damage to other crops during crop rotations. In this study, the biodegrading activity of bensulfuron-methyl by a plant growth-promoting bacterial strain was carried out. Methylopila sp. DKT isolated from soil was determined for bensulfuron-methyl degradation and phosphate solubilization in the liquid media and soil. Moreover, the effects of the herbicide on peanut development and the role of Methylopila sp. DKT on the growth promotion of peanut were investigated. The results showed that the isolate effectively utilized the compound as a sole carbon source and solubilized low soluble inorganic phosphates. Methylopila sp. DKT also utilized 2-amino-4,6-dimethoxypyrimidine, a metabolite of bensulfuron-methyl degradation, as a sole carbon and energy source, and released ammonium and nitrate. The supplementation with Methylopila sp. DKT in soil increased the peanut biomass and the phosphorus content in the plant. In addition, the inoculation with Methylopila sp. DKT in soil and peanut cultivation increased the bensulfuron-methyl degradation by 57.7% for 1 month, which suggests that both plants and the bacterial isolate play a key role in herbicide degradation. These results indicate that the studied strain has a high potential for soil remediation and peanut growth promotion.
Collapse
Affiliation(s)
- Danh Duc Ha
- Dong Thap University, Pham Huu Lau Str., Cao Lanh City, 870000, Dong Thap Province, Viet Nam.
| | - Thị Oanh Nguyen
- Dong Thap University, Pham Huu Lau Str., Cao Lanh City, 870000, Dong Thap Province, Viet Nam
| |
Collapse
|
35
|
Caceres-Jensen L, Rodriguez-Becerra J, Escudey M, Joo-Nagata J, Villagra CA, Dominguez-Vera V, Neira-Albornoz A, Cornejo-Huentemilla M. Nicosulfuron sorption kinetics and sorption/desorption on volcanic ash-derived soils: Proposal of sorption and transport mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121576. [PMID: 31812478 DOI: 10.1016/j.jhazmat.2019.121576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/08/2019] [Accepted: 10/30/2019] [Indexed: 06/10/2023]
Abstract
Nicosulfuron sorption/desorption kinetics were studied through batch sorption studies in ten volcanic ash-derived Andisol and Ultisol soils with acidic pH and variable surface charge. Two different kinetic models were used to fit the experimental data: i) Models to establish kinetic parameters (Pseudo-First and Pseudo-Second-Order), and ii) Models to describe solute transport mechanisms of organic compounds on sorbents (Intraparticle Diffusion, Dimensionless Intraparticle, Boyd, and Two-Site Nonequilibrium). Sorption kinetic data best fit the pseudo-second-order model. Application of these models to describe solute transport suggests that underlying mechanisms are complex in all soils due to: i) surface sorption, with mass transfers controlling sorption kinetics across the boundary layer; and ii) pore diffusion (i.e. intraparticle diffusion into macropores and micropores). The Freundlich model explained equilibrium sorption data in all cases (R2 > 0.9979) with Kf values higher than those reported for different class of soils (6.85-16.08 μg1-1/n mL1/n g-1). The hysteresis was significant in all studied soils. The lower sorption rate on Ultisols must be considered in regards to Nicosulfuron leaching potential.
Collapse
Affiliation(s)
- Lizethly Caceres-Jensen
- Laboratorio de Físicoquímica&Analítica, Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile.
| | - Jorge Rodriguez-Becerra
- Laboratorio de Físicoquímica&Analítica, Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile
| | - Mauricio Escudey
- Facultad de Química y Biología, Universidad de Santiago de Chile, Avenida Alameda Libertador Bernardo O'Higgins 3363, Santiago, Chile; Center for the Development of Nanoscience and Nanotechnology, CEDENNA, 9170124, Santiago, Chile
| | - Jorge Joo-Nagata
- Departamento de Historia y Geografía, Facultad de Historia, Geografía y Letras, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile
| | - Cristian A Villagra
- Instituto de Entomología, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile
| | - Valentina Dominguez-Vera
- Laboratorio de Físicoquímica&Analítica, Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile
| | - Angelo Neira-Albornoz
- Laboratorio de Físicoquímica&Analítica, Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile; Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Chile
| | - Maribel Cornejo-Huentemilla
- Laboratorio de Físicoquímica&Analítica, Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Santiago, Chile
| |
Collapse
|
36
|
Kumari U, Singh SB, Singh N. Sorption and leaching of flucetosulfuron in soil. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2020; 55:550-557. [PMID: 32122244 DOI: 10.1080/03601234.2020.1733363] [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
The adsorption-desorption and leaching of flucetosulfuron, a sulfonylurea herbicide, was investigated in three Indian soils. Freundlich adsorption isotherm described the sorption mechanism of herbicide with adsorption coefficients (Kf) ranging from 17.13 to 27.99 and followed the order: Clayey loam > Loam > Sandy loam. The Kf showed positive correlation with organic carbon (OC) (r = 0.910) and clay content (r = 0.746); but, negative correlation with soil pH (r = -0.635). The adsorption isotherms were S-type suggesting that herbicide adsorption was concentration dependent and increased with increase in concentration. Desorption followed the sequence: sandy loam > clayey loam > loam . Hysteresis (H) was observed in all the three soils with H < 1. Leaching of flucetosulfuron correlated positively with the soil pH; but, negatively with the OC content. Sandy loam soil (OC- 0.40%, pH -7.25) registered lowest adsorption and highest leaching of flucetosulfuron while lowest leaching was found in the loam soil (pH - 7.89, OC - 0.65%). The leaching losses of herbicide increased with increase in the rainfall intensity. This study suggested that the soil OC content, pH and clay content played important roles in deciding the adsorption-desorption and leaching behavior of flucetosulfuron in soils.
Collapse
Affiliation(s)
- Usha Kumari
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Shashi B Singh
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Neera Singh
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, India
| |
Collapse
|
37
|
Kostopoulou S, Ntatsi G, Arapis G, Aliferis KA. Assessment of the effects of metribuzin, glyphosate, and their mixtures on the metabolism of the model plant Lemna minor L. applying metabolomics. CHEMOSPHERE 2020; 239:124582. [PMID: 31514011 DOI: 10.1016/j.chemosphere.2019.124582] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 05/14/2023]
Abstract
Chemical plant protection products (PPPs) is a major group of xenobiotics that are being released in the environment. Although the effects of individual active ingredients (a.i.) on organisms have been studied, information on those of mixtures, is fragmented. Aquatic environments are being polluted by PPPs, posing serious risks for the environment, human, and other organisms. Based on the potential of the model aquatic plant Lemna minor L. in the assessment of PPPs-caused stresses, we have undertaken the task of developing a metabolomics approach for the study of the effects of metribuzin and glyphosate, and their mixtures. Bioassays revealed that metribuzin exhibit higher toxicity than glyphosate and metabolomics highlighted corresponding changes in its metabolome. Treatments had a substantial impact on plants' amino acid pool, resulting in elevated levels of the majority of the identified amino acids. Results indicate that the increased proteolytic activity is a common effect of the a.i. and their mixtures. Additionally, the activation of salicylate-signaling pathways was recorded as a response to the toxicity caused by mixtures. Among the identified metabolites that were discovered as biomarkers were γ-aminobutyric acid (GABA), salicylate, caffeate, α,α-trehalose, and squalene, which play multiple roles in plants' metabolism such as, signaling, antioxidant, and structure protection. No reports exist on the combined effects of PPPs on Lemna and results confirm the applicability of Lemna metabolomics in the study of the combined effects of herbicides and its potential in the monitoring of the environmental health of aquatic environments based on fluctuations of the plant's metabolism.
Collapse
Affiliation(s)
- Sofia Kostopoulou
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece; Laboratory of Vegetable Production Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Georgia Ntatsi
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organization ELGO-DEMETER, Thermi, Thessaloniki, GR-57001, Greece; Laboratory of Vegetable Production Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Gerasimos Arapis
- Laboratory of Ecology and Environmental Sciences, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece.
| | - Konstantinos A Aliferis
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece; Department of Plant Science, McGill University, Macdonald Campus, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada.
| |
Collapse
|
38
|
Determination of sulfonylurea pesticide residues in edible seeds used as nutraceuticals by QuEChERS in combination with ultra-high-performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2019; 1617:460831. [PMID: 31948722 DOI: 10.1016/j.chroma.2019.460831] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/25/2019] [Accepted: 12/27/2019] [Indexed: 12/21/2022]
Abstract
This work proposes a novel Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method in combination with ultra-high performance liquid chromatography-tandem mass spectrometry for the determination of sulfonylurea residues in edible seeds. The chromatographic separation of nine sulfonylureas was accomplished in less than 5.5 min, using a Luna Omega C18 column (50 × 2.1 mm, 1.6 µm). Mobile phase was supplied at 0.55 mL min-1 and consisted of 0.01% (v/v) aqueous acetic acid as eluent A and a mixture methanol/acetonitrile (80/20, v/v) as eluent B. Column temperature was established at 25 °C. A QuEChERS procedure was investigated as sample treatment for sulfonylureas extraction and sample clean-up. Different clean-up agents (i.e. PSA, Z-Sep+, EMR-Lipid and C18) were evaluated, selecting Z-Sep+ (25 mg) as the best option. The proposed method provided an extraction efficiency greater than 86.2%, while absolute matrix effect was lower than 50.1%. Matrix-matched calibration curves were required for analyte quantification. The analytical method was characterized according to SANTE/11813/2017 guideline, and including limits of detection and quantification, precision, and trueness. Linear dynamic ranges were established from 5 to 150 µg kg-1 for all analytes. Linearity (R2 ≥ 0.9974) and precision in terms of repeatability and intermediate precision (relative standard deviation ≤ 14.7%) are reported. The reporting limit was established at 5 µg kg-1, which is above the limits of quantification of the proposed method (≤ 1.64 µg kg-1) and below the maximum residue levels currently established by European legislation. In general, trueness is within the range of 70-120%. Despite greater recoveries were obtained at the reporting limit (i.e. 120-138%), relative standard deviations lower than 20% were obtained at this concentration level, so fulfilling the requirements of SANTE/11813/2017 guideline. This work represents the first analytical method intended for the analysis of sulfonylureas in sunflower, pumpkin and chia seeds, which are complex matrices due to their high content of fat as well as of growing interest due to their current commercialization as nutraceuticals.
Collapse
|
39
|
Nörnberg AB, Gehrke VR, Mota HP, Camargo ER, Fajardo AR. Alginate-cellulose biopolymeric beads as efficient vehicles for encapsulation and slow-release of herbicide. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123970] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
40
|
Li C, Zhang N, Chen J, Ji J, Liu X, Wang J, Zhu J, Ma Y. Temperature and pH sensitive composite for rapid and effective removal of sulfonylurea herbicides in aqueous solution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113150. [PMID: 31541823 DOI: 10.1016/j.envpol.2019.113150] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 06/10/2023]
Abstract
Excessive pesticide residues in the environment have caused more and more serious social problems. In this article, the polymer materials and graphene oxide were smoothly grafted together through surface-initiated atom-transfer radical polymerization. A temperature and pH dual-sensitive adsorbent was successfully obtained, which was used for the removal of six sulfonylurea herbicides in the aquatic environment. Experiment results showed that the adsorbent could efficiently remove the tested pesticides in aqueous solution rapidly (only 1 min). The adsorption process was in consist with the pseudo-second-order kinetics equation and Freundlich model, and the thermodynamic parameters were also calculated. Furthermore, the mechanism for removal performance was judged as n-π, π-π, hydrogen bonding, hydrophobic and electrostatic interaction verdict. Exhilaratingly, the material showed no significant toxicity to Daphnia magna on risk assessment.
Collapse
Affiliation(s)
- Changsheng Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Nan Zhang
- The Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, 100125, China
| | - Jixiao Chen
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Jiawen Ji
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Xue Liu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Jianli Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Jianhui Zhu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Yongqiang Ma
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
41
|
Lam CH, Kurobe T, Lehman PW, Berg M, Hammock BG, Stillway ME, Pandey PK, Teh SJ. Toxicity of herbicides to cyanobacteria and phytoplankton species of the San Francisco Estuary and Sacramento-San Joaquin River Delta, California, USA. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 55:107-118. [PMID: 31642727 DOI: 10.1080/10934529.2019.1672458] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/17/2019] [Accepted: 09/20/2019] [Indexed: 06/10/2023]
Abstract
The herbicides glyphosate, imazamox and fluridone are herbicides, with low toxicity towards fish and invertebrates, which are applied to waterways to control invasive aquatic weeds. However, the effects of these herbicides on natural isolates of phytoplankton and cyanobacteria are unknown. Three species of microalgae found in the San Francisco Estuary (SFE)/Sacramento-San Joaquin River Delta (Delta) (Microcystis aeruginosa, Chlamydomonas debaryana, and Thalassiosira pseudonana) were exposed to the three herbicides at a range of concentrations in 96-well plates for 5-8 days. All three algal species were the most sensitive to fluridone, with IC50 of 46.9, 21, and 109 µg L-1 for M. aeruginosa, T. pseudonana and C. debaryana, respectively. Imazamox inhibited M. aeruginosa and T. pseudonana growth at 3.6 × 104 µg L-1 or higher, and inhibited C. debaryana growth at 1.0 × 105 µg L-1 or higher. Glyphosate inhibited growth in all species at ca. 7.0 × 104 µg L-1 or higher. Fluridone was the only herbicide that inhibited the microalgae at environmentally relevant concentrations in this study and susceptibility to the herbicide depended on the species. Thus, the application of fluridone may affect cyanobacteria and phytoplankton community composition in water bodies where it is applied.
Collapse
Affiliation(s)
- Chelsea H Lam
- Aquatic Health Program, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, Davis, California, USA
| | - Tomofumi Kurobe
- Aquatic Health Program, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, Davis, California, USA
| | - Peggy W Lehman
- California Department of Water Resources, Division of Environmental Services, Special Studies Section, West Sacramento, California, USA
| | - Mine Berg
- Applied Marine Sciences, Santa Cruz, California, USA
| | - Bruce G Hammock
- Aquatic Health Program, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, Davis, California, USA
| | - Marie E Stillway
- Aquatic Health Program, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, Davis, California, USA
| | - Pramod K Pandey
- Department of Population Health and Reproduction, University of California, Davis, Davis, California, USA
| | - Swee J Teh
- Aquatic Health Program, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, Davis, California, USA
| |
Collapse
|
42
|
Boutin C, Montroy K, Mathiassen SK, Carpenter DJ, Strandberg B, Damgaard C. Effects of Sublethal Doses of Herbicides on the Competitive Interactions Between 2 Nontarget Plants, Centaurea cyanus L. and Silene noctiflora L. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2053-2064. [PMID: 31145498 DOI: 10.1002/etc.4506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/20/2019] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
Plant competitive interactions influence the effect of herbicides, and the effect of competitive interactions on plant responses may be important to include in the ecological risk assessment of herbicides. In the present study the effect of competitive interactions and sublethal doses of 2 herbicides on plant species was investigated in competition experiments and fitted to empirical competition models. Two nontarget species commonly found in agroecosystems (Centaurea cyanus L. and Silene noctiflora L.) and 2 herbicides (glyphosate and metsulfuron methyl) were used in separate experiments. Plants were sprayed at the 6- to 8-leaf stage. Effects of herbicide treatments and plant density were modeled by generalization of a discrete hyperbolic competition model. The 10% effective dose (ED10) was calculated for C. cyanus. All experiments showed that as density increased, plants were negatively affected. Furthermore, in all cases, C. cyanus remained a better competitor than S. noctiflora. Nevertheless, the density of S. noctiflora (competitor) was an influential element in determining the ED10 of C. cyanus measured at the mature stage. With herbicide exposure, the competitive interactions were further altered; C. cyanus was less affected by glyphosate when S. noctiflora increased to high density. In contrast, at the young stage, conspecific density was important in determining the sensitivity of C. cyanus to metsulfuron methyl, whereas the density of the competitor S. noctiflora had a limited influence. Overall, the results demonstrate the importance of integrating the effect of herbicide and species interactions measured at the reproductive stage into the ecological risk assessments of pesticides. Environ Toxicol Chem 2019;38:2053-2064. © 2019 SETAC.
Collapse
Affiliation(s)
- Céline Boutin
- Science and Technology Branch, Environment and Climate Change Canada, Carleton University, Ottawa, Ontario, Canada
| | - Kaitlyn Montroy
- Science and Technology Branch, Environment and Climate Change Canada, Carleton University, Ottawa, Ontario, Canada
| | | | - David J Carpenter
- Science and Technology Branch, Environment and Climate Change Canada, Carleton University, Ottawa, Ontario, Canada
| | | | | |
Collapse
|
43
|
Luck L, Bellairs SM, Rossiter‐Rachor NA. Residual herbicide treatments reduce
Andropogon gayanus
(Gamba Grass) recruitment for mine site restoration in northern Australia. ECOLOGICAL MANAGEMENT & RESTORATION 2019. [DOI: 10.1111/emr.12376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
44
|
Breccia G, Gianotto L, Altieri E, Bulos M, Nestares G. Effect of Ahasl1-1 and Ahasl1-4 alleles on herbicide resistance and its associated dominance in sunflower. PEST MANAGEMENT SCIENCE 2019; 75:935-941. [PMID: 30187639 DOI: 10.1002/ps.5197] [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: 06/29/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Acetohydroxyacid synthase large subunit 1 (Ahasl1) is a multiallelic locus involved in herbicide resistance in sunflower. Ahasl1-1 and Ahasl1-4 alleles harbor different point mutations that lead to different amino acid substitutions (Ala205Val and Trp574Leu, respectively). The objectives of this work were to evaluate the effect of these alleles at the enzymatic and whole-plant levels, and to determine the dominance relationships for imazapyr and metsulfuron-methyl herbicides. RESULTS Resistant near-isogenic lines showed significantly lower specific AHAS activity than susceptible near-isoline. However, kinetic studies indicated that mutations did not change AHAS pyruvate affinity. Dose-response for six near-isolines carrying different combinations of Ahasl1-1 and Ahasl1-4 alleles and two herbicides (imazapyr and metsulfuron-methyl) were evaluated at whole-plant and enzymatic levels. Ahasl1-1 allele conferred moderate resistance to imazapyr and low resistance to metsulfuron-methyl. Conversely, Ahasl1-4 allele endowed high levels of resistance for both herbicides. Dominance of resistance at whole-plant level showed a semi-dominant behavior among the alleles for both herbicides. CONCLUSION Ahasl1-4 allele confers higher resistance levels than Ahasl1-1 when evaluated with imazapyr and metsulfuron-methyl. Dominance estimations suggested that both parental lines should carry a resistance trait when developing hybrids. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Gabriela Breccia
- IICAR, UNR, CONICET, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Santa Fe, Argentina
- Cátedra de Genética, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Santa Fe, Argentina
| | - Laura Gianotto
- Cátedra de Genética, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Santa Fe, Argentina
| | | | - Mariano Bulos
- Department of Biotechnology, Nidera S.A., Santa Fe, Argentina
| | - Graciela Nestares
- IICAR, UNR, CONICET, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Santa Fe, Argentina
- Cátedra de Genética, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Santa Fe, Argentina
| |
Collapse
|
45
|
Liu B, Peng Q, Sheng M, Hu S, Qian M, Fan B, He J. Directed Evolution of Sulfonylurea Esterase and Characterization of a Variant with Improved Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:836-843. [PMID: 30585487 DOI: 10.1021/acs.jafc.8b06198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Esterase SulE detoxicates a variety of sulfonylurea herbicides through de-esterification. SulE exhibits high activity against thifensulfuron-methyl but low activity against other sulfonylureas. In this study, two variants, m2311 (P80R) and m0569 (P80R and G176A), with improved activity were screened from a mutation library constructed by error-prone PCR. Variant m2311 showed a higher activity against sulfonylureas in comparison variant m0569 and was further investigated. The kcat/ Km value of variant m2311 for metsulfuron-methyl, sulfometuron-methyl, chlorimuron-ethyl, tribenuron-methyl, and ethametsulfuron-methyl increased by 3.20-, 1.72-, 2.94-, 2.26- and 2.96-fold, respectively, in comparison with the wild type. Molecular modeling suggested that the activity improvement of variant m2311 is due to the substitution of Pro80 by arginine, leading to the formation of new hydrogen bonds between the enzyme and substrate. This study facilitates further elucidation of the structure and function of SulE and provides an improved gene resource for the detoxification of sulfonylurea residues and the genetic engineering of sulfonylurea-resistant crops.
Collapse
Affiliation(s)
- Bin Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , Jiangsu , People's Republic of China
| | - Qian Peng
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , Jiangsu , People's Republic of China
| | - Mengyao Sheng
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , Jiangsu , People's Republic of China
| | - Shishan Hu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , Jiangsu , People's Republic of China
| | - Meng Qian
- Laboratory Centre of Life Science, College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , Jiangsu , People's Republic of China
| | - Ben Fan
- College of Forest Resources and Environment , Nanjing Forestry University , Nanjing , Jiangsu , People's Republic of China
| | - Jian He
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , Jiangsu , People's Republic of China
| |
Collapse
|
46
|
Luo Q, Li G, Xiao J, Yin C, He Y, Wang M, Ma C, Zhu C, Xu J. DFT study on the hydrolysis of metsulfuron-methyl: A sulfonylurea herbicide. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2018. [DOI: 10.1142/s0219633618500505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sulfonylureas are an important group of herbicides widely used for a range of weeds and grasses control particularly in cereals. However, some of them tend to persist for years in environments. Hydrolysis is the primary pathway for their degradation. To understand the hydrolysis behavior of sulfonylurea herbicides, the hydrolysis mechanism of metsulfuron-methyl, a typical sulfonylurea, was investigated using density functional theory (DFT) at the B3LYP/6-31[Formula: see text]G(d,p) level. The hydrolysis of metsulfuron-methyl resembles nucleophilic substitution by a water molecule attacking the carbonyl group from aryl side (pathway a) or from heterocycle side (pathway b). In the direct hydrolysis, the carbonyl group is directly attacked by one water molecule to form benzene sulfonamide or heterocyclic amine; the free energy barrier is about 52–58[Formula: see text]kcal[Formula: see text]mol[Formula: see text]. In the autocatalytic hydrolysis, with the second water molecule acting as a catalyst, the free energy barrier, which is about 43–45[Formula: see text]kcal[Formula: see text]mol[Formula: see text], is remarkably reduced by about 11[Formula: see text]kcal[Formula: see text]mol[Formula: see text]. It is obvious that water molecules play a significant catalytic role during the hydrolysis of sulfonylureas.
Collapse
Affiliation(s)
- Qiuhan Luo
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Gang Li
- Weifang University of Science and Technology, Shouguang, Shangdong 262700, P. R. China
| | - Junping Xiao
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Chunhui Yin
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Yahui He
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Mingliang Wang
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Chensheng Ma
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Caizhen Zhu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Jian Xu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| |
Collapse
|
47
|
Commercial AHAS-inhibiting herbicides are promising drug leads for the treatment of human fungal pathogenic infections. Proc Natl Acad Sci U S A 2018; 115:E9649-E9658. [PMID: 30249642 DOI: 10.1073/pnas.1809422115] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The increased prevalence of drug-resistant human pathogenic fungal diseases poses a major threat to global human health. Thus, new drugs are urgently required to combat these infections. Here, we demonstrate that acetohydroxyacid synthase (AHAS), the first enzyme in the branched-chain amino acid biosynthesis pathway, is a promising new target for antifungal drug discovery. First, we show that several AHAS inhibitors developed as commercial herbicides are powerful accumulative inhibitors of Candida albicans AHAS (K i values as low as 800 pM) and have determined high-resolution crystal structures of this enzyme in complex with several of these herbicides. In addition, we have demonstrated that chlorimuron ethyl (CE), a member of the sulfonylurea herbicide family, has potent antifungal activity against five different Candida species and Cryptococcus neoformans (with minimum inhibitory concentration, 50% values as low as 7 nM). Furthermore, in these assays, we have shown CE and itraconazole (a P450 inhibitor) can act synergistically to further improve potency. Finally, we show in Candida albicans-infected mice that CE is highly effective in clearing pathogenic fungal burden in the lungs, liver, and spleen, thus reducing overall mortality rates. Therefore, in view of their low toxicity to human cells, AHAS inhibitors represent a new class of antifungal drug candidates.
Collapse
|
48
|
Vörös M, Manczinger L, Kredics L, Szekeres A, Shine K, Alharbi NS, Khaled JM, Vágvölgyi C. Influence of agro-environmental pollutants on a biocontrol strain of Bacillus velezensis. Microbiologyopen 2018; 8:e00660. [PMID: 29938920 PMCID: PMC6436430 DOI: 10.1002/mbo3.660] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/24/2018] [Accepted: 04/27/2018] [Indexed: 11/12/2022] Open
Abstract
Metal- and pesticide-tolerant biocontrol agents are preferred in integrated pest management, as such strains can be applied in combination with different pesticides. The Bacillus velezensis strain SZMC 6161J proved to be sensitive to copper, nickel, zinc, and cadmium, while manganese elevated its growth. At concentrations higher than 1 mmol L-1 , zinc and iron inhibited the chymotrypsin-like activity of this strain. In addition, trypsin-like protease and palmitoyl esterase activities were insensitive to all tested heavy metals in the applied concentration range. We studied the effects of some widely used herbicides and fungicides on the growth of this strain. The presence of sulfonylurea herbicides, like bensulfuron-methyl, cinosulfuron, chlorsulfuron, ethoxysulfuron, triasulfuron, and primisulfuron-methyl strongly inhibited the biomass production of the strain even at the concentration of 6.25 mg L-1 . Glyphosate also inhibited the growth above 30 mg L-1 . Similarly, contact fungicides like captan, maneb, mancozeb, and thiram resulted in total inhibition at the concentration as low as 6.25 mg L-1 . Interestingly, the sterol-biosynthesis-inhibiting fungicides imazalil, fenarimol, penconazole, and tebuconazole also proved to be potent inhibitors. Heavy metal- and fungicide-tolerant strains were isolated from the parental strain and their antagonistic abilities were evaluated. There was no substantial difference between the antagonism capability of wild-type strain and the resistant mutants.
Collapse
Affiliation(s)
- Mónika Vörös
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - László Manczinger
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - László Kredics
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - András Szekeres
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Kadaikunnan Shine
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Csaba Vágvölgyi
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.,Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
49
|
Ma C, Liu X, Wu X, Dong F, Xu J, Zheng Y. Simultaneous Determination of Foramsulfuron and Orthosulfamuron in Four Common Grains Using Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1155-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
50
|
Rainbird B, Bentham RH, Soole KL. Rhizoremediation of residual sulfonylurea herbicides in agricultural soils using Lens culinaris and a commercial supplement. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:104-113. [PMID: 28613079 DOI: 10.1080/15226514.2017.1337070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sulfonylureas (SU) are a popular herbicide used today for controlling weeds. While beneficial for this purpose they present a persistent problem in agricultural treated areas, with this treatment proving detrimental for successive crops. This study assessed the phytoremediative properties of lentils (Lens culinaris) grown in uncontaminated and chlorsulfuron-contaminated soil, with and without the addition of a growth supplement, PulseAider™. The results show that in the presence of lentils the degradation of chlorsulfuron is enhanced and this degradation rate is significantly increased when the PulseAider™ supplement was included during seed sowing. The supplement PulseAider™ also significantly increased shoot and root biomass, root branching, and nodule number under control conditions. While this was not so for plants grown in contaminated soils, the PulseAider™ supplement seemed to alter root branching and morphology. Most Probable Number (MPN) assays showed increased numbers of potential chlorsulfuron-degrading bacteria in soil treated with PulseAider™, although this was found to be significant only in the control soil. Sequencing of the 16S ribosomal gene showed the presence of Pseudomonas fluorescens bacterial species which is a known chlorsulfuron-degrading bacterium. This study is one of the first to address the remediation of residual SU herbicides and offers an economically feasible solution that may have an impact on global food security.
Collapse
Affiliation(s)
- B Rainbird
- a School of Biological Sciences , Flinders University , Adelaide , Australia
| | - R H Bentham
- a School of Biological Sciences , Flinders University , Adelaide , Australia
| | - K L Soole
- a School of Biological Sciences , Flinders University , Adelaide , Australia
| |
Collapse
|