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Deng W, Li Y, Yao S, Wu J, Zhu A, Yang Q, Yuan S. Current status of cyhalofop-butyl and metamifop resistance and diversity of the ACCase gene mutations in Chinese sprangletop (Leptochloa chinensis) from China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105648. [PMID: 38072523 DOI: 10.1016/j.pestbp.2023.105648] [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: 08/22/2023] [Revised: 10/07/2023] [Accepted: 10/12/2023] [Indexed: 12/18/2023]
Abstract
Leptochloa chinensis populations in China have evolved widespread resistance to acetyl coenzyme A carboxylase (ACCase)-inhibiting herbicides cyhalofop-butyl (CyB) and metamifop (Met). 124 L. chinensis populations, randomly collected from rice fields in Jiangsu Province, were surveyed for CyB and Met resistance status, and all potential ACCase gene resistance-conferring mutations and effective pre-emergence herbicides for its control were investigated. Single-dose tests confirmed that 82 (66.1%) and 70 (56.4%) populations evolved resistance to CyB and Met, respectively. ACCase sequencing revealed that 56.4% of the populations contain plants with diverse target-site ACCase mutations (Ile1781Leu, Trp1999Cys, Trp2027Cys, Trp2027Ser, Ile2041Asn, Gly2096Ala, and in particular, a Leu1818Phe mutation). Notably, the Leu1818Phe mutation had been detected in 8 resistant populations, indicating this mutation was prone to occur in L. chinensis. Additionally, 9.7% of the populations may have single metabolic resistance to CyB, as these populations was susceptible to Met, and no any ACCase mutations were found. Moreover, the resistant populations with different ACCase mutations showed 6.5 to 33.6-fold resistance to CyB, and 4.4 to 82.6-fold resistance to Met. Importantly, five pre-emergence herbicides, including pretilachlor, pendimethalin, clomazone, pyraclonil, and mefenacet, all exhibited good control effect on resistant L. chinensis populations. This work confirmed the prevalence and distribution of CyB and Met resistance in L. chinensis. Target-site ACCase mutations made a major contribution to CyB and Met resistance. Pre-emergence herbicides could be valuable tools for management of resistant L. chinensis populations.
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Affiliation(s)
- Wei Deng
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Yang Li
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Sai Yao
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Jiawen Wu
- Plant Protection and Quarantine Station of Jiangsu province, Nanjing, China
| | - Axiu Zhu
- Plant Protection and Quarantine Station of Jiangsu province, Nanjing, China
| | - Qian Yang
- Jiangsu Lixiahe District Institute of Agricultural Sciences, Yangzhou, China
| | - Shuzhong Yuan
- College of Plant Protection, Yangzhou University, Yangzhou, China.
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Cao Y, Huang H, Wei S, Lan Y, Li W, Sun Y, Wang R, Huang Z. Target gene mutation and enhanced metabolism confer fomesafen resistance in an Amaranthus retroflexus L. population from China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105256. [PMID: 36464361 DOI: 10.1016/j.pestbp.2022.105256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/18/2022] [Accepted: 09/21/2022] [Indexed: 06/17/2023]
Abstract
Amaranthus retroflexus L., a troublesome annual dicotyledonous weed species, is highly competitive with soybean (Glycine max L.). A single-dose herbicide-resistance screening assay identified an A. retroflexus population with suspected resistance to fomesafen. Whole-plant dose-response assays demonstrated that the resistant population (2492) was resistant to protoporphyrinogen oxidase (PPO)-inhibiting herbicides (50.6-fold fomesafen resistance and > 8.1-fold lactofen resistance) compared to a susceptible (S) population. PPX2 gene sequence analysis showed an Arg128Gly amino acid substitution in the 2492 population. Moreover, pretreatment of malathion and the fomesafen metabolic assays through HPLC-MS demonstrated enhanced fomesafen metabolism in the 2492 population. Additionally, the 2492 population was 10.4-fold more resistant to the ALS-inhibiting herbicide imazethapyr and 16.8-fold more resistant to thifensulfuron-methyl than the S population. ALS gene sequence analysis showed an Ala205Val amino acid substitution in the 2492 population. This population of A. retroflexus has coexisting target-site resistance and non-target-site mechanisms for resistance to fomesafen. Multiple herbicide resistance may mean it is necessary to adjust weed management strategies to better control the resistant population.
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Affiliation(s)
- Yi Cao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongjuan Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shouhui Wei
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yuning Lan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wenyu Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ying Sun
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ruolin Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhaofeng Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
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Flores-León CD, Dominguez L, Aguayo-Ortiz R. Molecular basis of Toxoplasma gondii oryzalin resistance from a novel α-tubulin binding site model. Arch Biochem Biophys 2022; 730:109398. [PMID: 36116504 DOI: 10.1016/j.abb.2022.109398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 09/12/2022] [Indexed: 11/18/2022]
Abstract
Oryzalin (ORY) is a dinitroaniline derivative that inhibits the microtubule polymerization in plants and parasitic protozoa by selectively binding to the α-tubulin subunit. This herbicidal agent exhibits good antiprotozoal activity against major human parasites, such as Toxoplasma gondii (toxoplasmosis), Leishmania mexicana (leishmaniasis), and Plasmodium falciparum (malaria). Previous chemical mutagenesis assays on T. gondii α-tubulin (TgAT) have identified key mutations that lead to ORY resistance. Herein, we employed alchemical free energy methods and molecular dynamics simulations to determine if the ORY resistance mutations either decrease the TgAT's affinity of the compound or increase the protein stability. Our results here suggest that L136F and V202F mutations significantly decrease the affinity of ORY to TgAT, while T239I and V252L mutations diminish TgAT's flexibility. On the other hand, protein stability predictors determined that R243S mutation reduces TgAT stability due to the loss of its salt bridge interaction with E27. Interestingly, molecular dynamics simulations confirm that the loss of this key interaction leads to ORY binding site closure. Our study provides a better insight into the TgAT-ORY interaction, further supporting our recently proposed ORY-binding site.
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Affiliation(s)
- Carlos D Flores-León
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Laura Dominguez
- Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Rodrigo Aguayo-Ortiz
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
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Aguayo-Ortiz R, Dominguez L. Unveiling the Possible Oryzalin-Binding Site in the α-Tubulin of Toxoplasma gondii. ACS OMEGA 2022; 7:18434-18442. [PMID: 35694483 PMCID: PMC9178734 DOI: 10.1021/acsomega.2c00729] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/11/2022] [Indexed: 06/09/2023]
Abstract
Dinitroaniline derivatives have been widely used as herbicidal agents to control weeds and grass. Previous studies demonstrated that these compounds also exhibit good antiparasitic activity against some protozoan parasites. Oryzalin (ORY), a representative dinitroaniline derivative, exerts its antiprotozoal activity against Toxoplasma gondii by inhibiting the microtubule polymerization process. Moreover, the identification of ORY-resistant T. gondii lines obtained by chemical mutagenesis confirmed that this compound binds selectively to α-tubulin. Based on experimental information reported so far and a multiple sequence analysis carried out in this work, we propose that the pironetin (PIR) site is the potential ORY-binding site. Therefore, we employed state-of-the-art computational approaches to characterize the interaction profile of ORY at the proposed site in the α-tubulin of T. gondii. An exhaustive search for other possible binding sites was performed using the Wrap "N" Shake method, which showed that ORY exhibits highest stability and affinity for the PIR site. Moreover, our molecular dynamics simulations revealed that the dipropylamine substituent of ORY interacts with a hydrophobic pocket, while the sulfonamide group formed hydrogen bonds with water molecules at the site entrance. Overall, our results suggest that ORY binds to the PIR site on the α-tubulin of the protozoan parasite T. gondii. This information will be very useful for designing less toxic and more potent antiprotozoal agents.
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Affiliation(s)
- Rodrigo Aguayo-Ortiz
- Departamento
de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Laura Dominguez
- Departamento
de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
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Wang Y, Han H, Chen J, Yu Q, Vila-Aiub M, Beckie HJ, Powles SB. A dinitroaniline herbicide resistance mutation can be nearly lethal to plants. PEST MANAGEMENT SCIENCE 2022; 78:1547-1554. [PMID: 34981627 DOI: 10.1002/ps.6773] [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: 08/25/2021] [Revised: 12/28/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Lolium rigidum is the most important weed in Australian agriculture and pre-emergence dinitroaniline herbicides (e.g., trifluralin) are widely and persistently used for Lolium control. Consequently, evolution of resistance to dinitroaniline herbicides has been increasingly reported. Resistance-endowing target-site α-tubulin gene mutations are identified with varying frequency. This study investigated the putative fitness cost associated with the common resistance mutation Val-202-Phe and the rare resistance mutation Arg-243-Met causing helical plant growth. RESULTS Results showed a deleterious effect of Arg-243-Met on fitness when plants are homozygous for this mutation. This was evidenced as high plant mortality, severely diminished root and aboveground vegetative growth (lower relative growth rate), and very poor fecundity compared with the wild-type, which led to a nearly lethal fitness cost of >99.9% in competition with a wheat crop. A fitness penalty in vegetative growth was evident, but to a much lesser extent, in plants heterozygous for the Arg-243-Met mutation. By contrast, plants possessing the Val-202-Phe mutation exhibited a fitness advantage in vegetative and reproductive growth. CONCLUSION The α-tubulin mutations Arg-243-Met and Val-202-Phe have contrasting effects on fitness. These results help understand the absence of plants homozygous for the Arg-243-Met mutation and the high frequency of plants carrying the Val-202-Phe mutation in dinitroaniline-resistant L. rigidum populations. The α-tubulin Arg-243-Met mutation can have an exceptional fitness cost with nearly lethal effects on resistant L. rigidum plants. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yanhui Wang
- Guangxi Key Laboratory for Biology of Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning, China
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
| | - Heping Han
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
| | - Jinyi Chen
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qin Yu
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
| | - Martin Vila-Aiub
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
- IFEVA - CONICET - Faculty of Agronomy, Department of Ecology, University of Buenos Aires (UBA), Buenos Aires, Argentina
| | - Hugh J Beckie
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
| | - Stephen B Powles
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Crawley, WA, Australia
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Chen J, Yu Q, Owen M, Han H, Patterson E, Sayer C, Powles S. Target-site resistance to trifluralin is more prevalent in annual ryegrass populations from Western Australia. PEST MANAGEMENT SCIENCE 2022; 78:1206-1212. [PMID: 34837476 DOI: 10.1002/ps.6737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/08/2021] [Accepted: 11/27/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Trifluralin is widely used in Australia as one of the important pre-emergence herbicides to control annual ryegrass (Lolium rigidum Gaud.) populations. Trifluralin resistance evolution and mechanisms have been identified in some ryegrass populations. RESULTS In this study, 21 putative resistant field survey populations from Western Australian were screened with trifluralin, and 90% (19 of 21) contained individuals surviving 480 g ha-1 trifluralin treatment. Twelve populations contained individuals possessing the known α-tubulin resistance mutations at Val-202, Thr-239 and Arg-243 in TUA4 (alpha-tubulin 4 n), plus multiple potential resistance mutations in TUA4 pending genetic confirmation. Three populations had only individuals carrying newly identified (but uncharacterized) mutations in TUA3/TUA4. Radioactive work found that six populations evolved metabolic resistance to trifluralin, and at least four of them also possessed the known and/or putative target-site mutations. CONCLUSION These results confirm that a high incidence of resistance to the dinitroaniline herbicide (trifluralin) is present, and target-site tubulin mutations make a major contribution to resistance in these annual ryegrass populations. Co-evolution of both target-site and non-target-site resistance to per-emergence herbicides warrants diverse management tactics.
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Affiliation(s)
- Jinyi Chen
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing, China
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Perth, Australia
| | - Qin Yu
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Perth, Australia
| | - Mechelle Owen
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Perth, Australia
| | - Heping Han
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Perth, Australia
| | - Eric Patterson
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, USA
| | | | - Stephen Powles
- Australian Herbicide Resistance Initiative (AHRI)-School of Agriculture and Environment, University of Western Australia (UWA), Perth, Australia
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Laforest M, Soufiane B, Patterson EL, Vargas JJ, Boggess SL, Houston LC, Trigiano RN, Brosnan JT. Differential expression of genes associated with non-target site resistance in Poa annua with target site resistance to acetolactate synthase inhibitors. PEST MANAGEMENT SCIENCE 2021; 77:4993-5000. [PMID: 34218510 PMCID: PMC8518846 DOI: 10.1002/ps.6541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 06/28/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Poa annua is a pervasive grassy, self-pollinating, weed that has evolved resistance to 10 different herbicide modes-of-action, third most of all weed species. We investigated constitutive overexpression of genes associated with non-target site resistance (NTSR) in POAAN-R3 and the response of those genes when treated with trifloxysulfuron despite the biotype having a known target site mutation in acetolactate synthase (ALS). RESULTS Despite having an ALS target site mutation, POAAN-R3 still had a transcriptomic response to herbicide application that differed from a susceptible biotype. We observed differential expression of genes associated with transmembrane transport and oxidation-reduction activities, with differences being most pronounced prior to herbicide treatment. CONCLUSIONS In the P. annua biotype we studied with confirmed target site resistance to ALS inhibitors, we also observed constitutive expression of genes regulating transmembrane transport, as well as differential expression of genes associated with oxidative stress after treatment with trifloxysulfuron. This accumulation of mechanisms, in addition to the manifestation of target site resistance, could potentially increase the chance of survival when plants are challenged by different modes of action.
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Affiliation(s)
- Martin Laforest
- Saint‐Jean‐sur‐Richelieu R&D Centre, Agriculture and Agri‐Food CanadaSaint‐Jean‐sur‐RichelieuQCCanada
| | - Brahim Soufiane
- Saint‐Jean‐sur‐Richelieu R&D Centre, Agriculture and Agri‐Food CanadaSaint‐Jean‐sur‐RichelieuQCCanada
| | - Eric L Patterson
- Department of Plant, Soil, & Microbial SciencesMichigan State UniversityEast LansingMIUSA
| | - José J Vargas
- Department of Plant SciencesUniversity of TennesseeKnoxvilleTNUSA
| | - Sarah L Boggess
- Department of Entomology & Plant PathologyUniversity of TennesseeKnoxvilleTNUSA
| | - Logan C Houston
- Department of Entomology & Plant PathologyUniversity of TennesseeKnoxvilleTNUSA
| | - Robert N Trigiano
- Department of Entomology & Plant PathologyUniversity of TennesseeKnoxvilleTNUSA
| | - James T Brosnan
- Department of Plant SciencesUniversity of TennesseeKnoxvilleTNUSA
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Torra J, Osuna MD, Merotto A, Vila-Aiub M. Editorial: Multiple Herbicide-Resistant Weeds and Non-target Site Resistance Mechanisms: A Global Challenge for Food Production. FRONTIERS IN PLANT SCIENCE 2021; 12:763212. [PMID: 34777445 PMCID: PMC8581628 DOI: 10.3389/fpls.2021.763212] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 09/29/2021] [Indexed: 05/07/2023]
Affiliation(s)
- Joel Torra
- Department d'Hortofructicultura, Botànica i Jardineria, Agrotecnio-CERCA Center, Universitat de Lleida, Lleida, Spain
| | - María Dolores Osuna
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Agrarian Research Center “Finca La Orden” Valdesequera, Badajoz, Spain
| | - Aldo Merotto
- Department of Crop Science, Faculty of Agronomy, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Martin Vila-Aiub
- Department of Ecology, IFEVA -CONICET, Faculty of Agronomy, University of Buenos Aires (UBA), Buenos Aires, Argentina
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González-Torralva F, Norsworthy JK. Understanding Resistance Mechanisms to Trifluralin in an Arkansas Palmer Amaranth Population. Genes (Basel) 2021; 12:genes12081225. [PMID: 34440399 PMCID: PMC8394034 DOI: 10.3390/genes12081225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/05/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022] Open
Abstract
Amaranthus palmeri S. Watson (Palmer amaranth) is considered a problematic and troublesome weed species in many crops in the USA, partly because of its ability to evolve resistance to herbicides. In this study, we explored the mechanism of resistance in a trifluralin-resistant A. palmeri accession collected from Arkansas, USA. Dose-response assays using agar plates demonstrated an EC50 (effective concentration that reduces root length by 50%) of 1.02 µM trifluralin compared to 0.39 µM obtained in the susceptible accession. Thus, under these conditions, the resistant accession required 2.6 times more trifluralin to inhibit root length by 50%. Seeds in the presence or absence of the cytochrome P450-inhibitior malathion displayed a differential response with no significant influence on root length, suggesting that resistance is not P450-mediated. In addition, application of 4-chloro-7-nitrobenzofurazan (NBD-Cl), a glutathione S-transferase (GST) inhibitor, showed significant differences in root length, indicating that GSTs are most likely involved in the resistance mechanism. Sequencing of α- and β-tubulin genes revealed no single nucleotide polymorphisms (SNPs) previously described between accessions. In addition, relative gene copy number of α- and β-tubulin genes were estimated; however, both resistant and susceptible accessions displayed similar gene copy numbers. Overall, our results revealed that GST-mediated metabolism contributes to trifluralin resistance in this A. palmeri accession from Arkansas.
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Abdollahi F, Alebrahim MT, Ngov C, Lallemand E, Zheng Y, Villette C, Zumsteg J, André F, Navrot N, Werck-Reichhart D, Miesch L. Innate promiscuity of the CYP706 family of P450 enzymes provides a suitable context for the evolution of dinitroaniline resistance in weed. THE NEW PHYTOLOGIST 2021; 229:3253-3268. [PMID: 33253456 DOI: 10.1111/nph.17126] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/24/2020] [Indexed: 05/24/2023]
Abstract
Increased metabolism is one of the main causes for evolution of herbicide resistance in weeds, a major challenge for sustainable food production. The molecular drivers of this evolution are poorly understood. We tested here the hypothesis that a suitable context for the emergence of herbicide resistance could be provided by plant enzymes with high innate promiscuity with regard to their natural substrates. A selection of yeast-expressed plant cytochrome P450 enzymes with well documented narrow to broad promiscuity when metabolizing natural substrates was tested for herbicide metabolism competence. The positive candidate was assayed for capacity to confer herbicide tolerance in Arabidopsis thaliana. Our data demonstrate that Arabidopsis thaliana CYP706A3, with the most promiscuous activity on monoterpenes and sesquiterpenes for flower defence, can also oxidize plant microtubule assembly inhibitors, dinitroanilines. Ectopic overexpression of CYP706A3 confers dinitroaniline resistance. We show, in addition, that the capacity to metabolize dinitroanilines is shared by other members of the CYP706 family from plants as diverse as eucalyptus and cedar. Supported by three-dimensional (3D) modelling of CYP706A3, the properties of enzyme active site and substrate access channel are discussed together with the shared physicochemical properties of the natural and exogenous substrates to explain herbicide metabolism.
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Affiliation(s)
- Fatemeh Abdollahi
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67084, France
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Sciences & Natural Resources, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
- Equipe de Synthèse Organique et Phytochimie, Institut de Chimie, CNRS, Université de Strasbourg, Strasbourg, 67081, France
| | - Mohammad Taghi Alebrahim
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Sciences & Natural Resources, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
| | - Chheng Ngov
- Equipe de Synthèse Organique et Phytochimie, Institut de Chimie, CNRS, Université de Strasbourg, Strasbourg, 67081, France
| | - Etienne Lallemand
- Institute for Integrative Biology of the Cell (I2BC), Commissariat à l'Energie Atomique (CEA), CNRS, Université Paris-Saclay, Gif-sur-Yvette, 91198, France
| | - Yongxiang Zheng
- Equipe de Synthèse Organique et Phytochimie, Institut de Chimie, CNRS, Université de Strasbourg, Strasbourg, 67081, France
| | - Claire Villette
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67084, France
| | - Julie Zumsteg
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67084, France
| | - François André
- Institute for Integrative Biology of the Cell (I2BC), Commissariat à l'Energie Atomique (CEA), CNRS, Université Paris-Saclay, Gif-sur-Yvette, 91198, France
| | - Nicolas Navrot
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67084, France
| | - Danièle Werck-Reichhart
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67084, France
| | - Laurence Miesch
- Equipe de Synthèse Organique et Phytochimie, Institut de Chimie, CNRS, Université de Strasbourg, Strasbourg, 67081, France
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Chen J, Chu Z, Han H, Patterson E, Yu Q, Powles S. Diversity of α-tubulin transcripts in Lolium rigidum. PEST MANAGEMENT SCIENCE 2021; 77:970-977. [PMID: 32991064 DOI: 10.1002/ps.6109] [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: 06/16/2020] [Revised: 09/18/2020] [Accepted: 09/29/2020] [Indexed: 05/24/2023]
Abstract
BACKGROUND Tubulin, the target site of dinitroaniline herbicides, is encoded by small gene families in plants. To better characterize the mechanisms of target-site resistance to dinitroaniline herbicides in the globally important weedy species Lolium rigidum, attempts were made to amplify and sequence α-tubulin transcripts. RESULTS Four α-tubulin isoforms (TUA1, TUA2, TUA3 and TUA4) were identified in L. rigidum. Variations in the number and sequence of transcripts encoding these α-tubulin proteins were found in individuals from the two L. rigidum populations examined. Within and among populations, differences in the 5'- and 3'-untranslated regions of cDNA in TUA3 and TUA4 were identified. Furthermore, a novel double mutation, Arg-390-Cys+Asp-442-Glu, in the TUA3 transcript was identified and has the potential to confer dinitroaniline resistance. CONCLUSION This research reveals the complexity of the α-tubulin gene family in individuals/populations of the cross-pollinated weedy species L. rigidum, and highlights the need for better understanding of the molecular architecture of tubulin gene families for detecting resistance point mutations. Although TUA4 is a commonly expressed α-tubulin isoform containing most frequently reported resistance mutations, other mutant tubulin isoforms may also have a role in conferring dinitroaniline resistance.
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Affiliation(s)
- Jinyi Chen
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Western Australia, Australia
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, USA
| | - Zhizhan Chu
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Heping Han
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Western Australia, Australia
| | - Eric Patterson
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, USA
| | - Qin Yu
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Western Australia, Australia
| | - Stephen Powles
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Western Australia, Australia
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Chen J, Yu Q, Patterson E, Sayer C, Powles S. Dinitroaniline Herbicide Resistance and Mechanisms in Weeds. FRONTIERS IN PLANT SCIENCE 2021; 12:634018. [PMID: 33841462 PMCID: PMC8027333 DOI: 10.3389/fpls.2021.634018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/08/2021] [Indexed: 05/08/2023]
Abstract
Dinitroanilines are microtubule inhibitors, targeting tubulin proteins in plants and protists. Dinitroaniline herbicides, such as trifluralin, pendimethalin and oryzalin, have been used as pre-emergence herbicides for weed control for decades. With widespread resistance to post-emergence herbicides in weeds, the use of pre-emergence herbicides such as dinitroanilines has increased, in part, due to relatively slow evolution of resistance in weeds to these herbicides. Target-site resistance (TSR) to dinitroaniline herbicides due to point mutations in α-tubulin genes has been confirmed in a few weedy plant species (e.g., Eleusine indica, Setaria viridis, and recently in Lolium rigidum). Of particular interest is the resistance mutation Arg-243-Met identified from dinitroaniline-resistant L. rigidum that causes helical growth when plants are homozygous for the mutation. The recessive nature of the TSR, plus possible fitness cost for some resistance mutations, likely slows resistance evolution. Furthermore, non-target-site resistance (NTSR) to dinitroanilines has been rarely reported and only confirmed in Lolium rigidum due to enhanced herbicide metabolism (metabolic resistance). A cytochrome P450 gene (CYP81A10) has been recently identified in L. rigidum that confers resistance to trifluralin. Moreover, TSR and NTSR have been shown to co-exist in the same weedy species, population, and plant. The implication of knowledge and information on TSR and NTSR in management of dinitroaniline resistance is discussed.
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Affiliation(s)
- Jinyi Chen
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, University of Western Australia (UWA), Perth, WA, Australia
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Qin Yu
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, University of Western Australia (UWA), Perth, WA, Australia
- *Correspondence: Qin Yu,
| | - Eric Patterson
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Chad Sayer
- Nufarm Limited, Melbourne, VIC, Australia
| | - Stephen Powles
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, University of Western Australia (UWA), Perth, WA, Australia
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Busi R, Goggin DE, Onofri A, Boutsalis P, Preston C, Powles SB, Beckie HJ. Loss of trifluralin metabolic resistance in Lolium rigidum plants exposed to prosulfocarb recurrent selection. PEST MANAGEMENT SCIENCE 2020; 76:3926-3934. [PMID: 32638493 DOI: 10.1002/ps.5993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/29/2020] [Accepted: 07/08/2020] [Indexed: 05/24/2023]
Abstract
BACKGROUND Resistance to the dinitroaniline herbicide trifluralin in Lolium rigidum (annual ryegrass) often is mediated by the enhanced capacity to metabolize the herbicide to less toxic polar conjugates and/or by functionally recessive target-site mutations in α-tubulin. RESULTS In two L. rigidum populations possessing enhanced trifluralin metabolism, resistance was largely reversed by recurrent selection with the thiocarbamate herbicide prosulfocarb (i.e. plant survival was two- to >20-fold lower). Their ability to metabolize trifluralin was significantly decreased (by ≈2.3-fold) following recurrent prosulfocarb selection, to levels comparable to those observed in susceptible plants or when trifluralin metabolism was inhibited by treatment with the insecticide phorate. CONCLUSIONS This study provides evidence that trait(s) enabling efficient trifluralin metabolism in L. rigidum are purged from the population under prosulfocarb recurrent selection. The level of trifluralin metabolism in vitro and its inhibition caused by phorate action on trifluralin-metabolizing enzyme(s) is equivalent to the effect produced by prosulfocarb selection. The hypothetical link between the two phenomena is that the putative monooxygenase(s) conferring trifluralin metabolic resistance also mediate the activation of prosulfocarb to its toxic sulfoxide. Thus, we speculate that survival to prosulfocarb via a lack of metabolic herbicide activation, and survival to trifluralin conferred by enhanced herbicide metabolism, are mutually exclusive. These findings not only open up a new research direction in terms of the interaction between different herbicide resistance mechanisms in L. rigidum, but also offer strategies for immediate management of the population dynamics of metabolism-based resistance in the field. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Roberto Busi
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Crawley, Western Australia, Australia
| | - Danica E Goggin
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Crawley, Western Australia, Australia
| | - Andrea Onofri
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Peter Boutsalis
- School of Agriculture, Food and Wine, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Christopher Preston
- School of Agriculture, Food and Wine, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Stephen B Powles
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Crawley, Western Australia, Australia
| | - Hugh J Beckie
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Crawley, Western Australia, Australia
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Gaines TA, Duke SO, Morran S, Rigon CAG, Tranel PJ, Küpper A, Dayan FE. Mechanisms of evolved herbicide resistance. J Biol Chem 2020; 295:10307-10330. [PMID: 32430396 PMCID: PMC7383398 DOI: 10.1074/jbc.rev120.013572] [Citation(s) in RCA: 213] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
The widely successful use of synthetic herbicides over the past 70 years has imposed strong and widespread selection pressure, leading to the evolution of herbicide resistance in hundreds of weed species. Both target-site resistance (TSR) and nontarget-site resistance (NTSR) mechanisms have evolved to most herbicide classes. TSR often involves mutations in genes encoding the protein targets of herbicides, affecting the binding of the herbicide either at or near catalytic domains or in regions affecting access to them. Most of these mutations are nonsynonymous SNPs, but polymorphisms in more than one codon or entire codon deletions have also evolved. Some herbicides bind multiple proteins, making the evolution of TSR mechanisms more difficult. Increased amounts of protein target, by increased gene expression or by gene duplication, are an important, albeit less common, TSR mechanism. NTSR mechanisms include reduced absorption or translocation and increased sequestration or metabolic degradation. The mechanisms that can contribute to NTSR are complex and often involve genes that are members of large gene families. For example, enzymes involved in herbicide metabolism-based resistances include cytochromes P450, GSH S-transferases, glucosyl and other transferases, aryl acylamidase, and others. Both TSR and NTSR mechanisms can combine at the individual level to produce higher resistance levels. The vast array of herbicide-resistance mechanisms for generalist (NTSR) and specialist (TSR and some NTSR) adaptations that have evolved over a few decades illustrate the evolutionary resilience of weed populations to extreme selection pressures. These evolutionary processes drive herbicide and herbicide-resistant crop development and resistance management strategies.
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Affiliation(s)
- Todd A Gaines
- Agricultural Biology Department, Colorado State University, Fort Collins, Colorado, USA
| | - Stephen O Duke
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Sarah Morran
- Agricultural Biology Department, Colorado State University, Fort Collins, Colorado, USA
| | - Carlos A G Rigon
- Agricultural Biology Department, Colorado State University, Fort Collins, Colorado, USA
| | - Patrick J Tranel
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA
| | - Anita Küpper
- Bayer AG, CropScience Division, Frankfurt am Main, Germany
| | - Franck E Dayan
- Agricultural Biology Department, Colorado State University, Fort Collins, Colorado, USA
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Omics Potential in Herbicide-Resistant Weed Management. PLANTS 2019; 8:plants8120607. [PMID: 31847327 PMCID: PMC6963460 DOI: 10.3390/plants8120607] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 12/20/2022]
Abstract
The rapid development of omics technologies has drastically altered the way biologists conduct research. Basic plant biology and genomics have incorporated these technologies, while some challenges remain for use in applied biology. Weed science, on the whole, is still learning how to integrate omics technologies into the discipline; however, omics techniques are more frequently being implemented in new and creative ways to address basic questions in weed biology as well as the more practical questions of improving weed management. This has been especially true in the subdiscipline of herbicide resistance where important questions are the evolution and genetic basis of herbicide resistance. This review examines the advantages, challenges, potential solutions, and outlook for omics technologies in the discipline of weed science, with examples of how omics technologies will impact herbicide resistance studies and ultimately improve management of herbicide-resistant populations.
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Non-Target-Site Resistance to Herbicides: Recent Developments. PLANTS 2019; 8:plants8100417. [PMID: 31618956 PMCID: PMC6843234 DOI: 10.3390/plants8100417] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 01/07/2023]
Abstract
Non-target-site resistance (NTSR) to herbicides in weeds can be conferred as a result of the alteration of one or more physiological processes, including herbicide absorption, translocation, sequestration, and metabolism. The mechanisms of NTSR are generally more complex to decipher than target-site resistance (TSR) and can impart cross-resistance to herbicides with different modes of action. Metabolism-based NTSR has been reported in many agriculturally important weeds, although reduced translocation and sequestration of herbicides has also been found in some weeds. This review focuses on summarizing the recent advances in our understanding of the physiological, biochemical, and molecular basis of NTSR mechanisms found in weed species. Further, the importance of examining the co-existence of TSR and NTSR for the same herbicide in the same weed species and influence of environmental conditions in the altering and selection of NTSR is also discussed. Knowledge of the prevalence of NTSR mechanisms and co-existing TSR and NTSR in weeds is crucial for designing sustainable weed management strategies to discourage the further evolution and selection of herbicide resistance in weeds.
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