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Mmbando GS. The recent relationship between ultraviolet-B radiation and biotic resistance in plants: a novel non-chemical strategy for managing biotic stresses. Plant Signal Behav 2023; 18:2191463. [PMID: 36934364 PMCID: PMC10730183 DOI: 10.1080/15592324.2023.2191463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/07/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Ultraviolet-B radiation (UVB; 280-315 nm) is a significant environmental factor that alters plant development, changes interactions between species, and reduces the prevalence of pests and diseases. While UVB radiation has negative effects on plant growth and performance at higher doses, at lower and ambient doses, UVB radiation acts as a non-chemical method for managing biotic stresses by having positive effects on disease resistance and genes that protect plants from pests. Understanding the recent relationship between UVB radiation and plants' biotic stresses is crucial for the development of crops that are resistant to UVB and biotic stresses. However, little is known about the recent interactions between UVB radiation and biotic stresses in plants. This review discusses the most recent connections between UVB radiation and biotic stresses in crops, including how UVB radiation affects a plant's resistance to disease and pests. The interaction of UVB radiation with pathogens and herbivores has been the subject of the most extensive research of these. This review also discusses additional potential strategies for conferring multiple UVB-biotic stress resistance in crop plants, such as controlling growth inhibition, miRNA 396 and 398 modulations, and MAP kinase. This study provides crucial knowledge and methods for scientists looking to develop multiple resistant crops that will improve global food security.
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Affiliation(s)
- Gideon Sadikiel Mmbando
- Department of Biology, College of Natural and Mathematical Sciences, University of Dodoma (UDOM), Dodoma, Tanzania
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2
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Shen XJ, Zhang YJ, Wang SY, Chen JC, Cao LJ, Gong YJ, Pang BS, Hoffmann AA, Wei SJ. A high-throughput KASP assay provides insights into the evolution of multiple resistant mutations in populations of the two-spotted spider mite Tetranychus urticae across China. Pest Manag Sci 2023; 79:1702-1712. [PMID: 36594581 DOI: 10.1002/ps.7344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/24/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND The two-spotted spider mite (TSSM), Tetranychus urticae (Acari: Tetranychidae), is a cosmopolitan phytophagous pest in agriculture and horticulture. It has developed resistance to many acaricides by target-site mutations. Understanding the status and evolution of resistant mutations in the field is essential for resistance management. Here, we applied a high-throughput Kompetitive allele-specific polymerase chain reaction (KASP) method for detecting six mutations conferring resistance to four acaricides of the TSSM. We genotyped 3274 female adults of TSSM from 43 populations collected across China in 2017, 2020, and 2021. RESULTS The KASP genotyping of 24 testing individuals showed 99% agreement with Sanger sequencing results. KASP assays showed that most populations had a high frequency of mutations conferring avermectin (G314D and G326E) and pyridaben (H92R) resistance. The frequency of mutation conferring bifenazate (A269V and G126S) and etoxazole (I1017F) resistance was relatively low. Multiple mutations were common in the TSSM, with 70.2% and 24.6% of individuals having 2-6 and 7-10 of 10 possible resistant alleles, respectively. No loci were linked in most populations among the six mutations, indicating the development of multiple resistance is mainly by independent selection. However, G314D and I1017F on the nuclear genome deviated from Hardy-Weinberg equilibrium in most populations, indicating significant selective pressure on TSSM populations by acaricides or fitness cost of the mutations in the absence of acaricide selection. CONCLUSION Our study revealed that the high frequency of TSSMs evolved multiple resistant mutations in population and individual levels by independent selection across China, alarming for managing multiple-acaricides resistance. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xiu-Jing Shen
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yu-Jie Zhang
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | | | - Jin-Cui Chen
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Li-Jun Cao
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ya-Jun Gong
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Bin-Shuang Pang
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ary Anthony Hoffmann
- Bio21 Institute, School of BioSciences, University of Melbourne, Parkville, Victoria, Australia
| | - Shu-Jun Wei
- Institute of Plant Protection and Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Samejima H, Sugimoto Y. Phenotypic Diversity in Pre- and Post-Attachment Resistance to Striga hermonthica in a Core Collection of Rice Germplasms. Plants (Basel) 2022; 12:19. [PMID: 36616148 PMCID: PMC9824375 DOI: 10.3390/plants12010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/17/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
In sub-Saharan Africa, upland rice cultivation is expanding into rainfed areas endemic to the root parasitic weed Striga hermonthica. We evaluated the Striga resistance of 69 accessions from the World Rice Core Collection (WRC) to estimate the phenotypic diversity within the Oryza sativa species. Pre-attachment resistance was screened based on the germination-inducing activities of the root exudates, while post-attachment resistance was screened through rhizotron evaluation. The 69 WRC accessions showed a wide variation in both pre- and post-attachment resistance. Root exudates of one accession induced 0.04% germination, and those of some accessions displayed >80% germination. In the evaluation of post-attachment resistance, the successful parasitism percentages ranged from 1.3% to 60.7%. The results of these resistance evaluations were subjected to cluster analysis, which recognized five groups: group I of 27 accessions, with high pre- and post-attachment resistance; group II of 12 accessions, with high post-attachment resistance but moderate pre-attachment resistance; group III of 4 accessions, with low pre-attachment resistance; group IV of 13 accessions, with low post-attachment resistance; and group V of 13 accessions, with low pre- and post-attachment resistance. The wide variation found in the WRC accessions will help to elucidate the genetic factors underpinning pre- and post-attachment resistance.
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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: 193] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Tian E, Muhammad I, Hu W, Wu Z, Li R, Lu X, Chen C, Li J. Tentative epidemiologic cut-off value and resistant characteristic detection of apramycin against Escherichia coli from chickens. FEMS Microbiol Lett 2020; 366:5569653. [PMID: 31518404 DOI: 10.1093/femsle/fnz196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 09/12/2019] [Indexed: 01/08/2023] Open
Abstract
Escherichia coli are important foodborne zoonotic pathogens. Apramycin is a key aminoglycoside antibiotic used by veterinarians against E. coli. This study was conducted to establish the epidemiological cut-off value (ECV) and resistant characteristics of apramycin against E. coli. In this study, 1412 clinical isolates of E. coli from chickens in China were characterized. Minimum inhibitory concentrations (MICs) of apramycin were assessed by broth microdilution method. MIC50 and MIC90 for apramycin against E. coli (0.5-256 µg/mL) were 8 and 16 µg/mL, respectively. In this study, the tentative ECV was determined to be 16 µg/mL by the statistical method and 32 µg/mL by ECOFFinder software. Besides, the percentages of aac(3)-IV positive strains ascended with the increase of MIC values of apramycin, and the gene npmA was detected in strains with higher MICs. Sixteen apramycin highly resistant strains displayed multiple drug resistance (100%) to amoxicillin, ampicillin, gentamicin, doxycycline, tetracycline, trimethoprim and florfenicol, while most of them were susceptible to amikacin and spectinomycin. In summary, the tentative ECV of apramycin against E. coli was recommended to be 16 µg/mL.
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Affiliation(s)
- Erjie Tian
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Ishfaq Muhammad
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Wanjun Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Zhiyong Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Rui Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xiaoxiao Lu
- Wenxian County Agriculture and Forestry Bureau, Jiaozuo 454850, P. R. China
| | - Chunli Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, P. R. China
| | - Jichang Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, P. R. China
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Yu Y, Fang JT, Zheng M, Zhang Q, Walsh TR, Liao XP, Sun J, Liu YH. Combination Therapy Strategies Against Multiple-Resistant Streptococcus Suis. Front Pharmacol 2018; 9:489. [PMID: 29867493 PMCID: PMC5962770 DOI: 10.3389/fphar.2018.00489] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/24/2018] [Indexed: 01/09/2023] Open
Abstract
Streptococcus suis is a major swine pathogen, an emerging zoonotic agent responsible for meningitis, endocarditis and septicaemia followed by deafness in humans. The development of antimicrobial resistance in S. suis increases the risk for therapeutic failure in both animals and humans. In this study, we report the synergism of combination therapy against multi-resistant S. suis isolates from swine. Twelve antibiotic profiles were determined against 11 S. suis strains. To investigate their synergistic/antagonistic activity, checkerboard assay was performed for all the possible combinations. In-vitro killing curves and in-vivo treatment trials were used to confirm the synergistic activity of special combinations against S. suis dominant clones. In this study, 11 S. suis isolates were highly resistant to erythromycin, clindamycin, trimethoprim/sulfamethoxazole, and tetracycline with ratios of 80–100%, and the resistance percentages to enrofloxacin, florfenicol, and spectinomycin were ~50%. The checkerboard data identified two combination regimens, ampicillin plus apramycin and tiamulin plus spectinomycin which gave the greatest level of synergism against the S. suis strains. In-vitro kill-curves showed a bacterial reduction of over 3-logCFU with the use of combination treatments, whilst the application of mono-therapies achieve less than a 2-logCFU cell killing. In-vivo models confirm that administration of these two combinations significantly reduced the number of bacterial cells after 24 h of treatment. In conclusions, the combinations of ampicillin plus apramycin and tiamulin plus spectinomycin showed the greatest synergism and may be potential strategies for treatment of multi-resistant S. suis in animal.
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Affiliation(s)
- Yang Yu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China.,National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Department of Medical, Microbiology and Infectious Disease, Institute of Infection & Immunity, Heath Park Hospital, Cardiff, United Kingdom
| | - Jin-Tao Fang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China.,National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Mei Zheng
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Qing Zhang
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Timothy R Walsh
- Department of Medical, Microbiology and Infectious Disease, Institute of Infection & Immunity, Heath Park Hospital, Cardiff, United Kingdom
| | - Xiao-Ping Liao
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China.,National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jian Sun
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China.,National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ya-Hong Liu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
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7
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Heap I, Duke SO. Overview of glyphosate-resistant weeds worldwide. Pest Manag Sci 2018; 74:1040-1049. [PMID: 29024306 DOI: 10.1002/ps.4760] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 10/05/2017] [Accepted: 10/05/2017] [Indexed: 05/06/2023]
Abstract
Glyphosate is the most widely used and successful herbicide discovered to date, but its utility is now threatened by the occurrence of several glyphosate-resistant weed species. Glyphosate resistance first appeared in Lolium rigidum in an apple orchard in Australia in 1996, ironically the year that the first glyphosate-resistant crop (soybean) was introduced in the USA. Thirty-eight weed species have now evolved resistance to glyphosate, distributed across 37 countries and in 34 different crops and six non-crop situations. Although glyphosate-resistant weeds have been identified in orchards, vineyards, plantations, cereals, fallow and non-crop situations, it is the glyphosate-resistant weeds in glyphosate-resistant crop systems that dominate the area infested and growing economic impact. Glyphosate-resistant weeds present the greatest threat to sustained weed control in major agronomic crops because this herbicide is used to control weeds with resistance to herbicides with other sites of action, and no new herbicide sites of action have been introduced for over 30 years. Industry has responded by developing herbicide resistance traits in major crops that allow existing herbicides to be used in a new way. However, over reliance on these traits will result in multiple-resistance in weeds. Weed control in major crops is at a precarious point, where we must maintain the utility of the herbicides we have until we can transition to new weed management technologies. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Ian Heap
- International Survey of Herbicide-Resistant Weeds, Corvallis, OR, USA
| | - Stephen O Duke
- USDA, ARS, Natural Products Utilization Research Unit, National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, MS, USA
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8
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Beckie HJ, Harker KN. Our top 10 herbicide-resistant weed management practices. Pest Manag Sci 2017; 73:1045-1052. [PMID: 28160383 DOI: 10.1002/ps.4543] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 05/26/2023]
Abstract
Although proactive or reactive herbicide-resistant weed management (HRWM) practices have been recommended to growers in different agroecoregions globally, there is a need to identify and prioritise those having the most impact in mitigating or managing herbicide selection pressure in the northern Great Plains of North America. Our perspective on this issue is based on collaborative research, extension activities and dialogue with growers or farming experience (cereal, oilseed and pulse crop production) during the past 30 years. We list our top 10 HRWM practices, concluding with the number 1 practice which is the foundation of the other nine practices: crop diversity. Although our top 10 HRWM practices have broad applicability across agroecoregions, their ranking may vary widely. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Hugh J Beckie
- Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, Saskatoon, Saskatchewan, Canada
| | - K Neil Harker
- Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada
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9
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Rupp S, Weber RWS, Rieger D, Detzel P, Hahn M. Spread of Botrytis cinerea Strains with Multiple Fungicide Resistance in German Horticulture. Front Microbiol 2017; 7:2075. [PMID: 28096799 PMCID: PMC5206850 DOI: 10.3389/fmicb.2016.02075] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 12/08/2016] [Indexed: 11/13/2022] Open
Abstract
Botrytis cinerea is a major plant pathogen, causing gray mold rot in a variety of cultures. Repeated fungicide applications are common but have resulted in the development of fungal populations with resistance to one or more fungicides. In this study, we have monitored fungicide resistance frequencies and the occurrence of multiple resistance in Botrytis isolates from raspberries, strawberries, grapes, stone fruits and ornamental flowers in Germany in 2010 to 2015. High frequencies of resistance to all classes of botryticides was common in all cultures, and isolates with multiple fungicide resistance represented a major part of the populations. A monitoring in a raspberry field over six seasons revealed a continuous increase in resistance frequencies and the emergence of multiresistant Botrytis strains. In a cherry orchard and a vineyard, evidence of the immigration of multiresistant strains from the outside was obtained. Inoculation experiments with fungicide-treated leaves in the laboratory and with strawberry plants cultivated in the greenhouse or outdoors revealed a nearly complete loss of fungicide efficacy against multiresistant strains. B. cinerea field strains carrying multiple resistance mutations against all classes of site-specific fungicides were found to show similar fitness as sensitive field strains under laboratory conditions, based on their vegetative growth, reproduction, stress resistance, virulence and competitiveness in mixed infection experiments. Our data indicate an alarming increase in the occurrence of multiresistance in B. cinerea populations from different cultures, which presents a major threat to the chemical control of gray mold.
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Affiliation(s)
- Sabrina Rupp
- Department of Biology, University of KaiserslauternKaiserslautern, Germany
| | - Roland W. S. Weber
- Esteburg Fruit Research and Advisory CentreJork, Germany
- Department of Food Science, Aarhus UniversityÅrslev, Denmark
| | | | | | - Matthias Hahn
- Department of Biology, University of KaiserslauternKaiserslautern, Germany
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Salas RA, Burgos NR, Tranel PJ, Singh S, Glasgow L, Scott RC, Nichols RL. Resistance to PPO-inhibiting herbicide in Palmer amaranth from Arkansas. Pest Manag Sci 2016; 72:864-9. [PMID: 26817647 PMCID: PMC5069602 DOI: 10.1002/ps.4241] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 05/06/2023]
Abstract
BACKGROUND The widespread occurrence of ALS inhibitor- and glyphosate-resistant Amaranthus palmeri has led to increasing use of protoporphyrinogen oxidase (PPO)-inhibiting herbicides in cotton and soybean. Studies were conducted to confirm resistance to fomesafen (a PPO inhibitor), determine the resistance frequency, examine the resistance profile to other foliar-applied herbicides and investigate the resistance mechanism of resistant plants in a population collected in 2011 (AR11-LAW B) and its progenies from two cycles of fomesafen selection (C1 and C2). RESULTS The frequency of fomesafen-resistant plants increased from 5% in the original AR11-LAW-B to 17% in the C2 population. The amounts of fomesafen that caused 50% growth reduction were 6-, 13- and 21-fold greater in AR11-LAW-B, C1 and C2 populations, respectively, than in the sensitive ecotype. The AR11-LAW-B population was sensitive to atrazine, dicamba, glufosinate, glyphosate and mesotrione but resistant to ALS-inhibiting herbicides pyrithiobac and trifloxysulfuron. Fomesafen survivors from C1 and C2 populations tested positive for the PPO glycine 210 deletion previously reported in waterhemp (Amaranthus tuberculatus). CONCLUSION These studies confirmed that Palmer amaranth in Arkansas has evolved resistance to foliar-applied PPO-inhibiting herbicide.
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Affiliation(s)
- Reiofeli A Salas
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Nilda R Burgos
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Patrick J Tranel
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Shilpa Singh
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Les Glasgow
- Syngenta Crop Protection Inc., Greensboro, NC, USA
| | - Robert C Scott
- Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR, USA
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Van Mai T, Fujita D, Matsumura M, Yoshimura A, Yasui H. Genetic basis of multiple resistance to the brown planthopper (Nilaparvata lugens Stål) and the green rice leafhopper (Nephotettix cincticeps Uhler) in the rice cultivar 'ASD7' (Oryza sativa L. ssp. indica). Breed Sci 2015; 65:420-9. [PMID: 26719745 PMCID: PMC4671703 DOI: 10.1270/jsbbs.65.420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 10/07/2015] [Indexed: 05/16/2023]
Abstract
The rice cultivar ASD7 (Oryza sativa L. ssp. indica) is resistant to the brown planthopper (BPH; Nilaparvata lugens Stål) and the green leafhopper (Nephotettix virescens Distant). Here, we analyzed multiple genetic resistance to BPH and the green rice leafhopper (GRH; Nephotettix cincticeps Uhler). Using two independent F2 populations derived from a cross between ASD7 and Taichung 65 (Oryza sativa ssp. japonica), we detected two QTLs (qBPH6 and qBPH12) for resistance to BPH and one QTL (qGRH5) for resistance to GRH. Linkage analysis in BC2F3 populations revealed that qBPH12 controlled resistance to BPH and co-segregated with SSR markers RM28466 and RM7376 in plants homozygous for the ASD7 allele at qBPH6. Plants homozygous for the ASD7 alleles at both QTLs showed a much faster antibiosis response to BPH than plants homozygous at only one of these QTLs. It revealed that epistatic interaction between qBPH6 and qBPH12 is the basis of resistance to BPH in ASD7. In addition, qGRH5 controlled resistance to GRH and co-segregated with SSR markers RM6082 and RM3381. qGRH5 is identical to GRH1. Thus, we clarified the genetic basis of multiple resistance of ASD7 to BPH and GRH.
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Affiliation(s)
- Tan Van Mai
- Plant Breeding Laboratory, Faculty of Agriculture, Graduate School, Kyushu University,
6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581,
Japan
| | - Daisuke Fujita
- Plant Breeding Laboratory, Faculty of Agriculture, Graduate School, Kyushu University,
6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581,
Japan
- Global Human Resources Development Project, Faculty of Agriculture, Kyushu University,
6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581,
Japan
| | - Masaya Matsumura
- NARO Kyushu Okinawa Agricultural Research Center,
Koshi, Kumamoto 861-1192,
Japan
| | - Atsushi Yoshimura
- Plant Breeding Laboratory, Faculty of Agriculture, Graduate School, Kyushu University,
6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581,
Japan
| | - Hideshi Yasui
- Plant Breeding Laboratory, Faculty of Agriculture, Graduate School, Kyushu University,
6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581,
Japan
- Corresponding author (e-mail: )
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Preston C, Malone JM. Inheritance of resistance to 2,4-D and chlorsulfuron in a multiple-resistant population of Sisymbrium orientale. Pest Manag Sci 2015; 71:1523-1528. [PMID: 25476820 DOI: 10.1002/ps.3956] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 10/31/2014] [Accepted: 12/02/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND A population of Sisymbrium orientale from South Australia has multiple resistance to auxinic herbicides and inhibitors of acetohydroxyacid synthase (AHAS). Inheritance of resistance to 2,4-D and chlorsulfuron was studied in this population. RESULTS Crosses were made between seven resistant individuals as pollen donors to seven susceptible individuals. Sixteen F1 individuals from three crosses were identified by their lack of strong epinasty when treated with 200 g 2,4-D ha(-1). These individuals were selfed, and segregation analysis of strong epinasty in the resulting progeny fitted a 3:1 ratio for resistant:susceptible individuals when treated with 200 g 2,4-D ha(-1), as predicted by a single major gene. A detailed dose-response analysis of the F2 populations to 2,4-D confirmed single-gene inheritance. Analysis of segregation to 1 g chlorsulfuron ha(-1), a concentration that kills all susceptible individuals, was unable to determine the mode of inheritance. A detailed dose-response analysis indicated that two genes contributed to chlorsulfuron resistance: a dominant target-site mutation of Pro 197 to Ser and a second gene with dose-dependent dominance. CONCLUSIONS This population has a single dominant allele conferring 2,4-D resistance, whereas two genes contribute to chlorsulfuron resistance. Single dominant gene inheritance demonstrates that 2,4-D resistance can be readily selected.
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Affiliation(s)
- Christopher Preston
- School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia
| | - Jenna M Malone
- School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia
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Shaner DL, Beckie HJ. The future for weed control and technology. Pest Manag Sci 2014; 70:1329-39. [PMID: 24339388 DOI: 10.1002/ps.3706] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/02/2013] [Accepted: 12/11/2013] [Indexed: 05/19/2023]
Abstract
This review is both a retrospective (what have we missed?) and prospective (where are we going?) examination of weed control and technology, particularly as it applies to herbicide-resistant weed management (RWM). Major obstacles to RWM are discussed, including lack of diversity in weed management, unwillingness of many weed researchers to conduct real integrated weed management research or growers to accept recommendations, influence or role of agrichemical marketing and governmental policy and lack of multidisciplinary research. We then look ahead to new technologies that are needed for future weed control in general and RWM in particular, in areas such as non-chemical and chemical weed management, novel herbicides, site-specific weed management, drones for monitoring large areas, wider application of 'omics' and simulation model development. Finally, we discuss implementation strategies for integrated weed management to achieve RWM, development of RWM for developing countries, a new classification of herbicides based on mode of metabolism to facilitate greater stewardship and greater global exchange of information to focus efforts on areas that maximize progress in weed control and RWM. There is little doubt that new or emerging technologies will provide novel tools for RMW in the future, but will they arrive in time?
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Affiliation(s)
- Dale L Shaner
- United States Department of Agriculture - Agricultural Research Service, Water Management Research Unit, Fort Collins, Colorado, USA
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Bahrini I, Ogawa T, Kobayashi F, Kawahigashi H, Handa H. Overexpression of the pathogen-inducible wheat TaWRKY45 gene confers disease resistance to multiple fungi in transgenic wheat plants. Breed Sci 2011; 61:319-26. [PMID: 23136468 PMCID: PMC3406764 DOI: 10.1270/jsbbs.61.319] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 07/31/2011] [Indexed: 05/10/2023]
Abstract
Recently we cloned and characterized the gene for the wheat transcription factor TaWRKY45 and showed that TaWRKY45 was upregulated in response to benzothiadiazole (BTH) and Fusarium head blight (FHB) and that its overexpression conferred enhanced resistance against F. graminearum. To characterize the functional role of TaWRKY45 in the disease resistance of wheat, in the present study we conducted expression analyses of TaWRKY45 with inoculations of powdery mildew and leaf rust and evaluated TaWRKY45-overexpressing wheat plants for resistance to these diseases. TaWRKY45 was upregulated in response to infections with Blumeria graminis, a causal fungus for powdery mildew, and Puccinia triticina, a causal fungus for leaf rust. Constitutive overexpression of the TaWRKY45 transgene conferred enhanced resistance against these two fungi on transgenic wheat plants grown under greenhouse conditions. However, the expression of two resistance-related genes, Pm3 and Lr34, was not induced by the inoculation with powdery mildew in TaWRKY45-overexpressing wheat plants. These results suggest that TaWRKY45 is involved in the defense responses for multiple fungal diseases in wheat but that resistance involving TaWRKY45 differs from at least Pm3 and/or Lr34-related resistance. Our present and previous studies indicate that TaWRKY45 may be potentially utilized to improve a wide range of disease resistance in wheat.
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Affiliation(s)
- Insaf Bahrini
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Tennohdai, Tsukuba, Ibaraki 305-8572, Japan
| | - Taiichi Ogawa
- Plant Genome Research Unit, National Institute of Agrobiological Sciences, 2-1-2, Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Fuminori Kobayashi
- Plant Genome Research Unit, National Institute of Agrobiological Sciences, 2-1-2, Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Hiroyuki Kawahigashi
- Plant Genome Research Unit, National Institute of Agrobiological Sciences, 2-1-2, Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Hirokazu Handa
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Tennohdai, Tsukuba, Ibaraki 305-8572, Japan
- Plant Genome Research Unit, National Institute of Agrobiological Sciences, 2-1-2, Kannondai, Tsukuba, Ibaraki 305-8602, Japan
- Corresponding author (e-mail: )
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Trojak-Goluch A, Laskowska D, Agacka M, Czarnecka D, Kawka M, Czubacka A. Effectiveness of combining resistance to Thielaviopsis basicola and Tomato spotted wilt virus in haploid tobacco genotypes. Breed Sci 2011; 61:389-93. [PMID: 23136476 PMCID: PMC3406771 DOI: 10.1270/jsbbs.61.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 09/08/2011] [Indexed: 06/01/2023]
Abstract
Black root rot (BRR) caused by Thielaviopsis basicola as well as Tomato spotted wilt virus (TSWV) are the most serious problems in tobacco growing regions. We crossed the breeding line WGL 3 carrying BRR resistance derived from N.glauca with the line PW-834 the resistance of which to TSWV was transferred from cultivar Polalta. Anthers obtained from F(1) hybrid plants were cultured to induce haploids combining resistance to Th. basicola and TSWV. Flow cytometry analysis revealed 242 haploids and 2 spontaneous doubled haploids among regenerants. All haploids were cloned and then evaluated for BRR as well as TSWV resistance. The presence of pathogens was detected by microscopic evaluation of roots or using DAS-ELISA test. Microscopic assessment showed that, 132 haploids had no symptoms of Th. basicola which, together with the absence of symptoms in the F(1) hybrids, indicated a dominant monogenic mode of inheritance. At the same time only 30 haploids demonstrated resistance to TSWV. SCAR markers associated with TSWV resistance gene detection was applied. The results indicate that small proportion of TSWV-resistant haploids is probably due to the influence of deleterious genes flanking the resistance factor that reduced vitality of gametophytes. Altogether, 24 haploids showed multiple resistance to Th. basicola and TSWV.
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Affiliation(s)
- Anna Trojak-Goluch
- Department of Plant Breeding and Biotechnology, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, PL-24-100 Pulawy, Poland
| | - Dorota Laskowska
- Department of Plant Breeding and Biotechnology, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, PL-24-100 Pulawy, Poland
| | - Monika Agacka
- Department of Plant Breeding and Biotechnology, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, PL-24-100 Pulawy, Poland
| | - Diana Czarnecka
- Department of Plant Breeding and Biotechnology, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, PL-24-100 Pulawy, Poland
| | - Magdalena Kawka
- Department of Plant Breeding and Biotechnology, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, PL-24-100 Pulawy, Poland
| | - Anna Czubacka
- Department of Plant Breeding and Biotechnology, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, PL-24-100 Pulawy, Poland
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Sharma SB, Remanandan P, McDonald D. Resistance to Meloidogyne javanica and Rotylenchulus reniformis in Wild Relatives of Pigeonpea. J Nematol 1993; 25:824-829. [PMID: 19279848 PMCID: PMC2619445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
Meloidogyne javanica and Rotylenchulus reniformis are important nematode pests of pigeonpea. Greenhouse evaluation of 66 accessions of 25 species of Cajanus, Rhynchosia, and Flemingia for resistance to M. javanica based on number and size of galls, galled area of root, and number of egg masses showed resistance to be available in these wild relatives of pigeonpea. Thirty-five accessions had </= 10 galls. Five accessions of C. scarabaeoides (ICPW 92, 101, 103, 128, and 133) had very small or no galls. Damage indices (based on gall number, gall size, and galled area of root) ranged between 1 and 8 on a 1 (highly resistant) to 9 (highly susceptible) scale. ICPW 92 was highly resistant to M. javanica, and 38 other accessions were resistant. Accessions of Flemingia spp. and Rhynchosia spp. showed greater susceptibility than accessions of Cajanus spp. Based on the number of egg masses on roots, no accession of the three genera was highly resistant to R. reniformis, and 83% of the tested accessions were susceptible. Two accessions of C. scarabaeoides (ICPW 38 and 92) and one accession each of R. aurea (ICPW 210), R. minima (ICPW 237), and R. rothii (ICPW 257) were resistant to R. reniformis. Species of Cajanus and Flemingia were generally more susceptible to R. reniformis than were Rhynchosia spp. ICPW 92 was identified as a promising genotype with genes for resistance to both nematodes.
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