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Mikulka J, Sen MK, Košnarová P, Hamouz P, Hamouzová K, Sur VP, Šuk J, Bhattacharya S, Soukup J. Molecular Mechanisms of Resistance against PSII-Inhibiting Herbicides in Amaranthus retroflexus from the Czech Republic. Genes (Basel) 2024; 15:904. [PMID: 39062683 PMCID: PMC11275581 DOI: 10.3390/genes15070904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/25/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Amaranthus retroflexus L. (redroot pigweed) is one of the most problematic weeds in maize, sugar beet, vegetables, and soybean crop fields in Europe. Two pigweed amaranth biotypes (R1 and R2) from the Czech Republic resistant to photosystem II (PSII)-inhibiting herbicides were analyzed in this study. This study aimed to identify the genetic mechanisms that underlie the resistance observed in the biotypes. Additionally, we also intended to establish the use of chlorophyll fluorescence measurement as a rapid and reliable method for confirming herbicide resistance in this weed species. Both biotypes analyzed showed high resistance factors in a dose-response study and were thus confirmed to be resistant to PSII-inhibiting herbicides. A sequence analysis of the D1 protein revealed a well-known Ser-Gly substitution at amino acid position 264 in both biotypes. Molecular docking studies, along with the wild-type and mutant D1 protein's secondary structure analyses, revealed that the S264G mutation did not reduce herbicide affinity but instead indirectly affected the interaction between the target protein and the herbicides. The current study identified the S264G mutation as being responsible for conferring herbicide resistance in the pigweed amaranth biotypes. These findings can provide a strong basis for future studies that might use protein structure and mutation-based approaches to gain further insights into the detailed mechanisms of resistance in this weed species. In many individuals from both biotypes, resistance at a very early stage (BBCH10) of plants was demonstrated several hours after the application of the active ingredients by the chlorophyll fluorescence method. The effective PS II quantum yield parameter can be used as a rapid diagnostic tool for distinguishing between sensitive and resistant plants on an individual level. This method can be useful for identifying herbicide-resistant weed biotypes in the field, which can help farmers and weed management practitioners develop more effective weed control tactics.
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Affiliation(s)
- Jakub Mikulka
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Madhab Kumar Sen
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Pavlína Košnarová
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Pavel Hamouz
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Kateřina Hamouzová
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Vishma Pratap Sur
- Institute of Microbiology, The Czech Academy of Sciences, Centre Algatech, Novohradská 237-Opatovický Mlýn, 379 01 Třebon, Czech Republic;
| | - Jaromír Šuk
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Soham Bhattacharya
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
| | - Josef Soukup
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 1176, 165 00 Prague, Czech Republic; (J.M.); (M.K.S.); (P.K.); (P.H.); (K.H.); (J.Š.); (S.B.)
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Liu Y, Wang H, Gao H, Zhu G, Peng Z, Li J, Dong L. Two mechanisms provide tolerance to cyhalofop-butyl in pond lovegrass [Eragrostis japonica (Thunb.) Trin.]. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105247. [PMID: 36464357 DOI: 10.1016/j.pestbp.2022.105247] [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: 07/30/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 06/17/2023]
Abstract
Pond lovegrass [Eragrostis japonica (Thunb.) Trin.] is an annual grass weed of rice fields worldwide. Cyhalofop-butyl has been widely used for controlling annual grass weeds in rice fields. However, E. japonica is tolerant to cyhalofop-butyl. The effective dose values of cyhalofop-butyl for 29 E. japonica populations causing 50% inhibition of fresh weight (GR50: 130.15 to 187.61 g a.i. ha-1) were much higher than the recommended dose of cyhalofop-butyl (75 g a.i. ha-1) in the field. The mechanisms of tolerance to cyhalofop-butyl in E. japonica were identified. In vitro activity assays revealed that the cyhalofop-butyl concentration required to inhibit 50% of the acetyl-coenzyme A carboxylase (ACCase) activity (IC50) was 6.22-fold higher in E. japonica than that in the cyhalofop-butyl-susceptible Chinese sprangletop [Leptochloa chinensis (L.) Nees]. However, mutations in the ACCase gene, previously found to endow target-site resistance in weeds, were not detected in the sequences obtained. Additionally, the expression level of genes encoding ACCase in E. japonica was found to be as similar to L. chinensis. Tolerance was reduced by two cytochrome P450 monooxygenases (Cyt P450s) inhibitors (1-aminobenzotriazole and piperonyl butoxide) and the activity of NADPH-dependent cytochrome P450 reductase in E. japonica was approximately 4.46-fold higher than that of L. chinensis after cyhalofop-butyl treatment. Taken together, it is concluded that two co-existing mechanisms, an insensitive target ACCase and an enhanced metabolism mediated by Cyt P450s, endow tolerance to cyhalofop-butyl in E. japonica.
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Affiliation(s)
- Ying Liu
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, 210095 Nanjing, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, 210095 Nanjing, China
| | - Hao Wang
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, 210095 Nanjing, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, 210095 Nanjing, China
| | - Haitao Gao
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, 210095 Nanjing, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, 210095 Nanjing, China
| | - Guangtao Zhu
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, 210095 Nanjing, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, 210095 Nanjing, China
| | - Zhen Peng
- Shanghai Agricultural Technology Extension Service Center, 200000 Shanghai, China
| | - Jun Li
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, 210095 Nanjing, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, 210095 Nanjing, China
| | - Liyao Dong
- Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, 210095 Nanjing, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, 210095 Nanjing, China.
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Li W, Cao Y, Liu Z, Wei S, Huang H, Lan Y, Sun Y, Huang Z. Investigation of resistance mechanisms to bentazone in multiple resistant Amaranthus retroflexus populations. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 186:105164. [PMID: 35973771 DOI: 10.1016/j.pestbp.2022.105164] [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: 04/13/2022] [Revised: 06/27/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Redroot amaranth (Amaranthus retroflexus L.) is a noxious weed that affects soybean production in China. Experiments were conducted to determine the molecular basis of resistance to bentazone. Whole-plant dose-response experiments showed that two populations (R1 and R2) exhibited resistance to bentazone with resistance indices of 9.01 and 6.85, respectively. Sequencing of the psbA gene revealed no amino acid substitution in the two populations. qRT-PCR analysis verified that psbA gene expression in R1 and R2 populations was increased significantly after treatment with bentazone, which was 3-fold and 5-fold higher than that in S1 and S2 populations, respectively. The P450 inhibitor malathion significantly reduced the level of resistance in the R1 and R2 populations when used prior to bentazone treatment. The R1 population exhibited multiple resistance to thifensulfuron-methyl and lactofen, caused by target site mutations (Asp-376-Glu in ALS, Arg-128-Gly in PPO2). In conclusion, increased gene expression of the psbA gene and enhanced herbicide metabolism seem to be the basis of resistance to bentazone in these A. retroflexus populations.
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Affiliation(s)
- Wenyu Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China; College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Yi Cao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhen Liu
- 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
| | - Hongjuan Huang
- 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
| | - Ying Sun
- 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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Ma H, Lu H, Han H, Yu Q, Powles S. Metribuzin resistance via enhanced metabolism in a multiple herbicide resistant Lolium rigidum population. PEST MANAGEMENT SCIENCE 2020; 76:3785-3791. [PMID: 32452149 DOI: 10.1002/ps.5929] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/11/2020] [Accepted: 05/26/2020] [Indexed: 05/10/2023]
Abstract
BACKGROUND The photosystem II (PSII)-inhibiting herbicides are important for Australian farmers to control Lolium rigidum Gaud. and other weed species in trazine tolerant (TT)-canola fields. A L. rigidum population (R) collected from a TT-canola field from Western Australia showed multiple resistance to PSII, acetyl-coenzyme A carboxylase (ACCase) and acetolactate synthase (ALS) inhibitors. The mechanisms of multiple resistance in this R population were determined. RESULTS The R population showed a low-level (about 3.0-fold) resistance to the PSII-inhibiting herbicides metribuzin and atrazine. Sequencing of the psbA gene revealed no differences between the R and susceptible (S) sequences. Furthermore, [14 C]-metribuzin experiments found no significant difference in metribuzin foliar uptake and translocation between the R and S plants. However, [14 C]-metribuzin metabolism in R plants was 2.3-fold greater than in S plants. The cytochrome P450 monooxygenase inhibitor piperonyl butoxide (PBO) enhanced plant mortality response to metribuzin and atrazine in both R and S populations. In addition, multiple resistance to ALS and ACCase inhibitors are due to known resistance mutations in ALS and ACCase genes. CONCLUSION The results demonstrate that enhanced metribuzin metabolism likely involving cytochrome P450 monooxygenase contributes to metribuzin resistance in Lolium rigidum. This is the first report of metabolic resistance to the PSII-inhibiting herbicide metribuzin in Australian Lolium rigidum. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Hongju Ma
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, P. R. China
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
| | - Huan Lu
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
| | - Heping Han
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
| | - Qin Yu
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
| | - Stephen Powles
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
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Perotti VE, Larran AS, Palmieri VE, Martinatto AK, Permingeat HR. Herbicide resistant weeds: A call to integrate conventional agricultural practices, molecular biology knowledge and new technologies. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 290:110255. [PMID: 31779903 DOI: 10.1016/j.plantsci.2019.110255] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 05/16/2023]
Abstract
Herbicide resistant (HR) weeds are of major concern in modern agriculture. This situation is exacerbated by the massive adoption of herbicide-based technologies along with the overuse of a few active ingredients to control weeds over vast areas year after year. Also, many other anthropological, biological, and environmental factors have defined a higher rate of herbicide resistance evolution in numerous weed species around the world. This review focuses on two central points: 1) how these factors have affected the resistance evolution process; and 2) which cultural practices and new approaches would help to achieve an effective integrated weed management. We claim that global climate change is an unnoticed factor that may be acting on the selection of HR weeds, especially those evolving into non-target-site resistance mechanisms. And we present several new tools -such as Gene Drive and RNAi technologies- that may be adopted to cope with herbicide resistance spread, as well as discuss their potential application at field level. This is the first review that integrates agronomic and molecular knowledge of herbicide resistance. It covers not only the genetic basis of the most relevant resistance mechanisms but also the strengths and weaknesses of traditional and forthcoming agricultural practices.
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Affiliation(s)
- Valeria E Perotti
- Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina
| | - Alvaro S Larran
- Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina; Instituto de Investigaciones en Ciencias Agrarias de Rosario (IICAR-CONICET-UNR), Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina
| | - Valeria E Palmieri
- Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina
| | - Andrea K Martinatto
- Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina
| | - Hugo R Permingeat
- Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina; Instituto de Investigaciones en Ciencias Agrarias de Rosario (IICAR-CONICET-UNR), Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental Villarino, S2125ZAA, Zavalla, Argentina.
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Guo M, Shen J, Song XE, Dong S, Wen Y, Yuan X, Guo P. Comprehensive evaluation of fluroxypyr herbicide on physiological parameters of spring hybrid millet. PeerJ 2019; 7:e7794. [PMID: 31579632 PMCID: PMC6766372 DOI: 10.7717/peerj.7794] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 08/29/2019] [Indexed: 11/21/2022] Open
Abstract
Foxtail millet (Setaria italic L.) is an important food and fodder crop that is cultivated worldwide. Quantifying the effects of herbicides on foxtail millet is critical for safe herbicide application. In this study, we analyzed the effects of different fluroxypyr dosages on the growth parameters and physiological parametric of foxtail millet, that is, peroxidation characteristics, photosynthetic characteristics, and endogenous hormone production, by using multivariate statistical analysis. Indicators were screened via Fisher discriminant analysis, and the growth parameters, peroxidation characteristics, photosynthesis characteristics and endogenous hormones of foxtail millet at different fluroxypyr dosages were comprehensively evaluated by principal component analysis. On the basis of the results of principal component analysis, the cumulative contribution rate of the first two principal component factors was 93.72%. The first principal component, which explained 59.23% of total variance, was selected to represent the photosynthetic characteristics and endogenous hormones of foxtail millet. The second principal component, which explained 34.49% of total variance, represented the growth parameters of foxtail millet. According to the principal component analysis, the indexes were simplified into comprehensive index Z, and the mathematical model of comprehensive index Z was set as F = 0.592Z1 + 0.345Z2. The results showed that the comprehensive evaluation score of fluroxypyr at moderate concentrations was higher than at high concentrations. Consequently, one L (active ingredient, ai) ha−1 fluroxypyr exerted minimal effects on growth parameters, oxidase activity, photosynthetic activity, and endogenous hormones, and had highest value of comprehensive evaluation, which had efficient and safe benefits in foxtail millet field.
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Affiliation(s)
- Meijun Guo
- Agronomy College, Shanxi Agricultural University, Taigu, China
| | - Jie Shen
- Agronomy College, Shanxi Agricultural University, Taigu, China
| | - Xi-E Song
- Agronomy College, Shanxi Agricultural University, Taigu, China
| | - Shuqi Dong
- Agronomy College, Shanxi Agricultural University, Taigu, China
| | - Yinyuan Wen
- Agronomy College, Shanxi Agricultural University, Taigu, China
| | - Xiangyang Yuan
- Agronomy College, Shanxi Agricultural University, Taigu, China
| | - Pingyi Guo
- Agronomy College, Shanxi Agricultural University, Taigu, China
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Murphy BP, Tranel PJ. Target-Site Mutations Conferring Herbicide Resistance. PLANTS 2019; 8:plants8100382. [PMID: 31569336 PMCID: PMC6843678 DOI: 10.3390/plants8100382] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 12/01/2022]
Abstract
Mutations conferring evolved herbicide resistance in weeds are known in nine different herbicide sites of action. This review summarizes recently reported resistance-conferring mutations for each of these nine target sites. One emerging trend is an increase in reports of multiple mutations, including multiple amino acid changes at the glyphosate target site, as well as mutations involving two nucleotide changes at a single amino acid codon. Standard reference sequences are suggested for target sites for which standards do not already exist. We also discuss experimental approaches for investigating cross-resistance patterns and for investigating fitness costs of specific target-site mutations.
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Affiliation(s)
- Brent P Murphy
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.
| | - Patrick J Tranel
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.
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McMurray LS, Preston C, Vandenberg A, Mao D, Bett KE, Paull JG. Induced novel psbA mutation (Ala 251 to Thr) in higher plants confers resistance to PSII inhibitor metribuzin in Lens culinaris. PEST MANAGEMENT SCIENCE 2019; 75:1564-1570. [PMID: 30632275 DOI: 10.1002/ps.5328] [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: 10/08/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Weed competition is a major limitation to worldwide lentil (Lens culinaris Medik.) production in part due to limited effective safe herbicide options. Metribuzin is a photosystem II inhibiting herbicide that provides broad spectrum weed control, however it causes excessive injury in lentil. Dose response analysis of photosystem II inhibiting herbicides and DNA sequencing of the psbA chloroplast gene occurred to quantify the spectrum and mechanism of herbicide resistance in two ethyl-methanesulfonate (EMS) induced mutant lentils. RESULTS Compared to susceptible parent PBA Flash, the level of metribuzin resistance was 33-fold for mutant M043 and 10-fold for M009. No improvement in resistance occurred in either mutant to bromoxynil, diuron, bromacil and atrazine herbicides. Nucleotide sequencing of the psbA gene of both mutants identified a substitution at position 751 compared to PBA Flash. The resulting deduced amino acid sequence indicated an Ala251 Thr substitution as being most likely responsible for the high level of metribuzin resistance. CONCLUSIONS The Ala251 Thr substitution discovered in this study is unique in mutagenized higher plants and the first report of an induced psbA target site mutation in higher plants. This target site metribuzin resistance is likely to have a significant impact on lentil production in Australia and worldwide. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Larn S McMurray
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, South Australia, Australia
- South Australian Research and Development Institute, Clare, South Australia, Australia
| | - Christopher Preston
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Albert Vandenberg
- Department of Plant Sciences/Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Dili Mao
- South Australian Research and Development Institute, Clare, South Australia, Australia
| | - Kirstin E Bett
- Department of Plant Sciences/Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Jeffrey G Paull
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, South Australia, Australia
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Lu H, Yu Q, Han H, Owen MJ, Powles SB. Metribuzin Resistance in a Wild Radish ( Raphanus raphanistrum) Population via Both psbA Gene Mutation and Enhanced Metabolism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:1353-1359. [PMID: 30640451 DOI: 10.1021/acs.jafc.8b05974] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
There have been many studies on target-site resistance (TSR) to PSII-inhibiting herbicides, but only a few on the non-target-site resistance (NTSR). Here, we reported both TSR and NTSR to metribuzin in a wild radish population. Dose-response studies revealed a higher level of resistance to metribuzin in the resistant (R) compared to the susceptible (S) population. Sequencing of the target psbA gene revealed the known Ser-264-Gly mutation in R plants. In addition, a higher level of [14C]-metribuzin metabolism and, consequently, a lower level of [14C] translocation were also detected in the R plants. These results demonstrated that both psbA gene mutation and enhanced metabolism contribute to metribuzin resistance in this wild radish population. Furthermore, this resistant population showed resistance to ALS-inhibiting herbicides due to multiple ALS gene mutations. This is the first report in wild radish of metabolic herbicide resistance, in addition to the target-site psbA gene mutation.
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Affiliation(s)
- Huan Lu
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment , University of Western Australia , Perth WA 6009 , Australia
| | - Qin Yu
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment , University of Western Australia , Perth WA 6009 , Australia
| | - Heping Han
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment , University of Western Australia , Perth WA 6009 , Australia
| | - Mechelle J Owen
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment , University of Western Australia , Perth WA 6009 , Australia
| | - Stephen B Powles
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment , University of Western Australia , Perth WA 6009 , Australia
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Lu H, Yu Q, Han H, Owen MJ, Powles SB. A novel psbA mutation (Phe274-Val) confers resistance to PSII herbicides in wild radish (Raphanus raphanistrum). PEST MANAGEMENT SCIENCE 2019; 75:144-151. [PMID: 29797480 DOI: 10.1002/ps.5079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Wild radish (Raphanus raphanistrum) is a globally important weed of crops. Two atrazine-resistant wild radish populations (R1 and R2), collected from the Western Australia grain belt, were investigated for resistance to photosystem II (PSII) herbicides. RESULTS Sequencing of the full-length psbA gene revealed the well-known Ser264-Gly substitution in population R1, whereas population R2 displayed a novel Phe274-Val substitution. Herbicide dose-response studies confirmed that the population with the Ser264-Gly mutation exhibited high-level resistance to atrazine, but super-sensitivity to bromoxynil. Plants possessing the novel Phe274-Val mutation exhibited a modest level of resistance to atrazine, metribuzin and diuron, and were bromoxynil susceptible. Structural modelling of the mutant D1 proteins predicts that the Ser264-Gly mutation endows atrazine resistance by abolishing H-bonds, but confers bromoxynil super-sensitivity by enhancing hydrogen bonding. The Phe274-Val substitution provides resistance to atrazine and diuron by indirectly affecting H-bond formation between the Ser264 residue and the herbicides. CONCLUSION The results demonstrate that the Phe274-Val mutation is likely responsible for resistance to PSII-inhibiting triazine and urea herbicides. To our knowledge, this is the first evidence of the psbA Phe274-Val mutation in wild radish conferring resistance to PSII herbicides. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Huan Lu
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Australia
| | - Qin Yu
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Australia
| | - Heping Han
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Australia
| | - Mechelle J Owen
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Australia
| | - Stephen B Powles
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, Australia
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Zhu M, Wang L, Wang Y, Zhou J, Ding J, Li W, Xin Y, Fan S, Wang Z, Wang Y. Biointeractions of Herbicide Atrazine with Human Serum Albumin: UV-Vis, Fluorescence and Circular Dichroism Approaches. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15010116. [PMID: 29324720 PMCID: PMC5800215 DOI: 10.3390/ijerph15010116] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/06/2018] [Accepted: 01/09/2018] [Indexed: 12/17/2022]
Abstract
The herbicide atrazine is widely used across the globe, which is a great concern. To investigate its potential toxicity in the human body, human serum albumin (HSA) was selected as a model protein. The interaction between atrazine and HSA was investigated using steady-state fluorescence spectroscopy, synchronous fluorescence spectroscopy, UV-Vis spectroscopy, three-dimensional (3D) fluorescence spectroscopy and circular dichroism (CD) spectroscopy. The intrinsic fluorescence of HSA was quenched by the atrazine through a static quenching mechanism. Fluorescence spectra at two excitation wavelengths (280 and 295 nm) showed that the fluorescence quenched in HSA was mainly contributed to by tryptophan residues. In addition, the atrazine bound to HSA, which induced changes in the conformation and secondary structure of HSA and caused an energy transfer. Thermodynamic parameters revealed that this binding is spontaneous. Moreover, electrostatic interactions play a major role in the combination of atrazine and HSA. One atrazine molecule can only bind to one HSA molecule to form a complex, and the atrazine molecule is bound at site II (subdomain IIIA) of HSA. This study furthers the understanding of the potential effects posed by atrazine on humans at the molecular level.
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Affiliation(s)
- Meiqing Zhu
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Lijun Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Yu Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Jie Zhou
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Jie Ding
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Wei Li
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Yue Xin
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Shisuo Fan
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Zhen Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Yi Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
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Ladewig E, Buhre C, Kenter C, Stockfisch N, Varrelmann M, Mahlein AK. Pflanzenschutz im Zuckerrübenanbau in Deutschland – Situationsanalyse 2018. SUGAR INDUSTRY-ZUCKERINDUSTRIE 2018. [DOI: 10.36961/si20130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Die Kontrolle von Schaderregern ist eine wesentliche Voraussetzung zur Sicherung der Erträge von Kulturpflanzen. Diese Situationsanalyse stellt das Auftreten von Unkräutern, Krankheiten und tierischen Schädlingen im Zuckerrübenanbau in Deutschland dar und erläutert die Verfahren zu ihrer Kontrolle. Wesentlicher Baustein des integrierten Pflanzenschutzes, der in der EU maßgeblich ist, sind Sorten mit Resistenz- oder Toleranzeigenschaften, z.B. gegenüber Rizomania oder Nematoden. Zur Bekämpfung von Schad- erregern werden auch chemische Pflanzenschutzmittel eingesetzt, deren aktuelle und mittelfristige Verfügbarkeit gezeigt ist. Hier steht der Zuckerrübenanbau derzeit vor großen Herausforderungen, insbesondere durch den Wegfall der neonicotinoiden Saatgutbeizungen ab 2019. Neben der Zulassungssituation, die auch noch weitere Wirkstoffe betrifft, spielt auch die Entwicklung von resistenten Schaderregern eine entscheidende Rolle für die Verfügbarkeit effizienter chemischer Bekämpfungsverfahren. Konsequenzen für den zukünftigen Pflanzenschutz im Zuckerrübenanbau werden aufgezeigt. Für eine längerfristige Nutzung der vorhandenen Wirkstoffe ist ein spezifisches Resistenzmanagement unerlässlich.
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Corral MG, Leroux J, Tresch S, Newton T, Stubbs KA, Mylne JS. Exploiting the Evolutionary Relationship between Malarial Parasites and Plants To Develop New Herbicides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maxime G. Corral
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- ARC Centre of Excellence in Plant Energy Biology University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Julie Leroux
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- ARC Centre of Excellence in Plant Energy Biology University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | | | | | - Keith A. Stubbs
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Joshua S. Mylne
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- ARC Centre of Excellence in Plant Energy Biology University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
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Corral MG, Leroux J, Tresch S, Newton T, Stubbs KA, Mylne JS. Exploiting the Evolutionary Relationship between Malarial Parasites and Plants To Develop New Herbicides. Angew Chem Int Ed Engl 2017; 56:9881-9885. [DOI: 10.1002/anie.201705400] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Maxime G. Corral
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- ARC Centre of Excellence in Plant Energy Biology University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Julie Leroux
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- ARC Centre of Excellence in Plant Energy Biology University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | | | | | - Keith A. Stubbs
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Joshua S. Mylne
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- ARC Centre of Excellence in Plant Energy Biology University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
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Frenkel E, Matzrafi M, Rubin B, Peleg Z. Effects of Environmental Conditions on the Fitness Penalty in Herbicide Resistant Brachypodium hybridum. FRONTIERS IN PLANT SCIENCE 2017; 8:94. [PMID: 28217132 PMCID: PMC5289963 DOI: 10.3389/fpls.2017.00094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 01/17/2017] [Indexed: 05/19/2023]
Abstract
Herbicide-resistance mutations may impose a fitness penalty in herbicide-free environments. Moreover, the fitness penalty associated with herbicide resistance is not a stable parameter and can be influenced by ecological factors. Here, we used two Brachypodium hybridum accessions collected from the same planted forest, sensitive (S) and target-site resistance (TSR) to photosystem II (PSII) inhibitors, to study the effect of agro-ecological parameters on fitness penalty. Both accessions were collected in the same habitat, thus, we can assume that the genetic variance between them is relatively low. This allow us to focus on the effect of PSII TSR on plant fitness. S plants grains were significantly larger than those of the TSR plants and this was associated with a higher rate of germination. Under low radiation, the TSR plants showed a significant fitness penalty relative to S plants. S plants exhibiting dominance when both types of plants were grown together in a low-light environment. In contrast to previous documented studies, under high-light environment our TSR accession didn't show any significant difference in fitness compared to the S accession. Nitrogen deficiency had significant effect on the R compared to the S accession and was demonstrated in significant yield reduction. TSR plants also expressed a high fitness penalty, relative to the S plants, when grown in competition with wheat plants. Two evolutionary scenarios can be suggested to explain the coexistence of both TSR and S plants in the same habitat. The application of PSII inhibitors may have created selective pressure toward TSR dominancy; termination of herbicide application gave an ecological advantage to S plants, creating changes in the composition of the seed bank. Alternatively, the high radiation intensities found in the Mediterranean-like climate may reduce the fitness penalty associated with TSR. Our results may suggest that by integrating non-herbicidal approaches into weed-management programs, we can reduce the agricultural costs associated with herbicide resistance.
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Pedroso RM, Al-Khatib K, Alarcón-Reverte R, Fischer AJ. A psbA mutation (Val219 to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis. PEST MANAGEMENT SCIENCE 2016; 72:1673-1680. [PMID: 26929096 DOI: 10.1002/ps.4267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/18/2016] [Accepted: 02/22/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Propanil-resistant (R) Cyperus difformis populations were recently confirmed in California rice fields. To date, propanil resistance in other weed species has been associated with enhanced aryl acylamidase (AAA)-mediated propanil conversion into 3,4-dichloroaniline. Our objectives were to determine the level of propanil resistance and cross-resistance to other PSII inhibitors in C. difformis lines, and to elucidate the mechanism of propanil resistance. RESULTS The propanil-R line had a 14-fold propanil resistance and increased resistance to bromoxynil, diuron and metribuzin, but not to atrazine. The R line, however, displayed a fourfold increased susceptibility to bentazon. Interestingly, susceptible (S) plants accumulated more 3,4-dichloroaniline and were more injured by propanil and carbaryl (AAA-inhibitor) applications than R plants, suggesting that propanil metabolism is not the resistance mechanism. psbA gene sequence analysis indicated a valine-219-isoleucine (Val219 Ile) amino acid exchange in the propanil-R chloroplast D1 protein. CONCLUSION The D1 Val219 Ile modification in C. difformis causes resistance to propanil, diuron, metribuzin and bromoxynil but increased susceptibility to bentazon, suggesting that the Val219 residue participates in binding of these herbicides. This is the first report of a higher plant exhibiting target-site propanil resistance. Tank mixing of bentazon and propanil, where permitted, can control both propanil-R and propanil-S C. difformis and prevent the spread of the resistant phenotype. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Rafael M Pedroso
- Department of Plant Sciences, University of California, Davis, CA, USA
| | - Kassim Al-Khatib
- Department of Plant Sciences, University of California, Davis, CA, USA
| | | | - Albert J Fischer
- Department of Plant Sciences, University of California, Davis, CA, USA
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Matzrafi M, Lazar TW, Sibony M, Rubin B. Conyza species: distribution and evolution of multiple target-site herbicide resistances. PLANTA 2015; 242:259-67. [PMID: 25912190 DOI: 10.1007/s00425-015-2306-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 04/16/2015] [Indexed: 05/27/2023]
Abstract
Distribution of Conyza species is well correlated with human interference. Multiple herbicide resistance is caused by the attempt to overcome resistance to one mode of action by overuse of another. Conyza canadensis (CC) and Conyza bonariensis (CB) are troublesome weeds around the world. Extensive use of herbicides has led to the evolution of numerous Conyza spp. herbicide-resistant populations. Seeds of 91 CC and CB populations were collected across Israel. They were mostly found (86 %) in roadsides and urban habitats, two disturbed habitats that had been dramatically impacted by human activities, thus we classify these species as anthropogenic. Although pyrithiobac-sodium was only used in cotton fields, 90 % of Conyza spp. populations were identified as pyrithiobac-sodium resistant, suggesting possible natural resistance to pyrithiobac-sodium. CC21 and CC17 C. canadensis populations were highly resistant to all tested ALS inhibitors due to a substitution in the ALS gene from Trp574 to Leu. They were also atrazine resistant due to a substitution in the psbA gene from Ser264 to Gly. The high level of imazapyr and pyrithiobac-sodium resistance observed in the CC10 population was due to an Ala205 to Val substitution. However, high resistance to sulfometuron methyl and pyrithiobac-sodium in population CC6 was due to a point mutation at Pro197 to Ser. All resistant plants of CC21 population showed both psbA (Ser264 to Gly) and ALS (Trp574 to Leu) substitutions, leading us to the conclusion that the attempt to overcome resistance to one mode of action by overuse of another will most likely lead to multiple herbicide resistance. Furthermore, we concluded that only individuals that carry both mutations could survive the shift between the two modes of action and overcome the fitness cost associated with the PSII resistance.
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Affiliation(s)
- Maor Matzrafi
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, 7610001, Rehovot, Israel,
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Matzrafi M, Gadri Y, Frenkel E, Rubin B, Peleg Z. Evolution of herbicide resistance mechanisms in grass weeds. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2014; 229:43-52. [PMID: 25443832 DOI: 10.1016/j.plantsci.2014.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Revised: 08/14/2014] [Accepted: 08/21/2014] [Indexed: 05/27/2023]
Abstract
Herbicide resistant weeds are becoming increasingly common, threatening global food security. Here, we present BrIFAR: a new model system for the functional study of mechanisms of herbicide resistance in grass weeds. We have developed a large collection of Brachypodium accessions, the BrI collection, representing a wide range of habitats. Wide screening of the responses of the accessions to four major herbicide groups (PSII, ACCase, ALS/AHAS and EPSPS inhibitors) identified 28 herbicide-resistance candidate accessions. Target-site resistance to PSII inhibitors was found in accessions collected from habitats with a known history of herbicide applications. An amino acid substitution in the psbA gene (serine264 to glycine) conferred resistance and also significantly affected the flowering and shoot dry weight of the resistant accession, as compared to the sensitive accession. Non-target site resistance to ACCase inhibitors was found in accessions collected from habitats with a history of herbicide application and from a nature reserve. In-vitro enzyme activity tests and responses following pre-treatment with malathion (a cytochrome-P450 inhibitor) indicated sensitivity at the enzyme level, and give strong support to diclofop-methyl and pinoxaden enhanced detoxification as NTS resistance mechanism. BrIFAR can promote better understanding of the evolution of mechanisms of herbicide resistance and aid the implementation of integrative management approaches for sustainable agriculture.
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Affiliation(s)
- Maor Matzrafi
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 7610001, Israel.
| | - Yaron Gadri
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 7610001, Israel.
| | - Eyal Frenkel
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 7610001, Israel.
| | - Baruch Rubin
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 7610001, Israel.
| | - Zvi Peleg
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 7610001, Israel.
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