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Khan MF, Umar UUD, Alrefaei AF, Rao MJ. Elicitor-Driven Defense Mechanisms: Shielding Cotton Plants against the Onslaught of Cotton Leaf Curl Multan Virus (CLCuMuV) Disease. Metabolites 2023; 13:1148. [PMID: 37999244 PMCID: PMC10673074 DOI: 10.3390/metabo13111148] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023] Open
Abstract
Salicylic acid (SA), benzothiadiazole (BTH), and methyl jasmonate (MeJA) are potential elicitors found in plants, playing a crucial role against various biotic and abiotic stresses. The systemic acquired resistance (SAR) mechanism was evaluated in cotton plants for the suppression of Cotton leaf curl Multan Virus (CLCuMuV) by the exogenous application of different elicitors. Seven different treatments of SA, MeJA, and BTH were applied exogenously at different concentrations and combinations. In response to elicitors treatment, enzymatic activities such as SOD, POD, CAT, PPO, PAL, β-1,3 glucanse, and chitinase as biochemical markers for resistance were determined from virus-inoculated and uninoculated cotton plants of susceptible and tolerant varieties, respectively. CLCuMuV was inoculated on cotton plants by whitefly (Bemesia tabaci biotype Asia II-1) and detected by PCR using specific primers for the coat protein region and the Cotton leaf curl betasatellite (CLCuMuBV)-associated component of CLCuMuV. The development of disease symptoms was observed and recorded on treated and control plants. The results revealed that BTH applied at a concentration of 1.1 mM appeared to be the most effective treatment for suppressing CLCuMuV disease in both varieties. The enzymatic activities in both varieties were not significantly different, and the disease was almost equally suppressed in BTH-treated cotton plants following virus inoculation. The beta satellite and coat protein regions of CLCuMuV were not detected by PCR in the cotton plants treated with BTH at either concentration. Among all elicitors, 1.1 mM BTH was proven to be the best option for inducing resistance after the onset of CLCuMuV infection and hence it could be part of the integrated disease management program against Cotton leaf curl virus.
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Affiliation(s)
- Muhammad Fahad Khan
- Department of Plant Pathology, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University, Multan 60800, Pakistan;
- Department of Plant Protection, Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan 32200, Pakistan
| | - Ummad Ud Din Umar
- Department of Plant Pathology, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University, Multan 60800, Pakistan;
| | - Abdulwahed Fahad Alrefaei
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Muhammad Junaid Rao
- College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan 430070, China
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Fra Ckowiak P, Gawlik-Dziki U, Sanchez-Bel P, Obrępalska-Stęplowska A. The Effect of Benzo(1,2,3)-thiadiazole-7-carbothioic Acid S-Methyl Ester ( BTH) and Its Cholinium Ionic Liquid Derivative on the Resistance Induction and Antioxidant Properties of Tomato ( Solanum lycopersicum L.). J Agric Food Chem 2023; 71:12958-12974. [PMID: 37611234 DOI: 10.1021/acs.jafc.3c03876] [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] [Indexed: 08/25/2023]
Abstract
Tomatoes are one of the most important vegetables thanks to their taste attributes and nutritional value. Their cultivation is threatened by various pathogens including viruses. The application of resistance inducers (RI), such as benzo(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) may be used to enhance plant performance against viruses. Here we aimed to compare the impact of BTH and its choline derivative (Chol-BTH) on resistance induction and antioxidant properties of healthy plants and tomato mosaic virus (ToMV)-infected ones. The response of tomato plants to treatment with BTH or Chol-BTH was manifested by increased expression of not only pathogenesis-related (PR) genes but also WRKY and Jasmonate Zim-domain protein (JAZ) genes and increased jasmonic acid (JA) levels. The effect of BTH as a resistance inducer was observed early after application, while with Chol-BTH the plant defense system reacted more strongly after 8 days. The antioxidant properties of RI-treated tomatoes are related to both glutathione content and peroxidase activity. In the case of BTH, an increase in these activities occurred early after application, while in the case of Chol-BTH, the glutathione level was particularly high in the plant early after treatment, and high peroxidase activity was observed 8 days post-treatment. Overall, the collected results indicate that Chol-BTH, due to its physicochemical parameters (e.g., good solubility) and biological activity (increased expression of lignification-related genes, supported by increases in peroxidase activity and total phenolic compounds levels), can also be a very useful agent inducing tomato resistance against viral pathogens.
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Affiliation(s)
- Patryk Fra Ckowiak
- Department of Molecular Biology and Biotechnology, Institute of Plant Protection - National Research Institute, 20 Węgorka, 60-318 Poznań, Poland
| | - Urszula Gawlik-Dziki
- Department of Biochemistry and Food Chemistry, University of Life Sciences, 8 Skromna, 20-704 Lublin, Poland
| | - Paloma Sanchez-Bel
- Department of Biology, Biochemistry and Natural Sciences, Universitat Jaume I, Vicent Sos Baynat, 15, 12006, Castelló de la Plana, Spain
| | - Aleksandra Obrępalska-Stęplowska
- Department of Molecular Biology and Biotechnology, Institute of Plant Protection - National Research Institute, 20 Węgorka, 60-318 Poznań, Poland
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3
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Deng H, Ma L, Gong D, Xue S, Ackah S, Prusky D, Bi Y. BTH-induced joint regulation of wound healing at the wounds of apple fruit by JA and its downstream transcription factors. Food Chem 2023; 410:135184. [PMID: 36623456 DOI: 10.1016/j.foodchem.2022.135184] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/23/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Jasmonic acids (JAs) are important injury signaling molecules, which participate in the process of wound healing in plants. However, how JA and its downstream transcription factors involve in wound healing in apple fruit mediated by BTH has not been reported yet. In the present study, BTH treatment up-regulated gene expression of MdLOX3.1, MdAOS1, MdAOC, and MdOPR3, promoting JA synthesis at fruit wounds. Moreover, BTH up-regulated the gene expression of MdMYC2, MdGAIPB, and MdMYB108 transcription factors and increased MdPAL1, Md4CL2, MdCOMT1, and MdCAD6 expression. In addition, BTH facilitated the synthesis of phenylpropanoid metabolism products and accelerated suberin polyphenolics deposition at the wounds, which effectively reduced fruit weight loss and lesion diameter of apple fruit inoculated with Penicillium expansum during healing. It is suggested that BTH induced wound healing in apple fruit by the stimulating JA and its downstream transcription factors, and phenylpropanoid metabolism.
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Affiliation(s)
- Huiwen Deng
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Li Ma
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Di Gong
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Rishon LeZion 7505101, Israel
| | - Sulin Xue
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Sabina Ackah
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Dov Prusky
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Rishon LeZion 7505101, Israel
| | - Yang Bi
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
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Jiang H, Li X, Ma L, Ren Y, Bi Y, Prusky D. Transcriptome sequencing and differential expression analysis of natural and BTH-treated wound healing in potato tubers (Solanum tuberosum L.). BMC Genomics 2022; 23:263. [PMID: 35382736 PMCID: PMC8981635 DOI: 10.1186/s12864-022-08480-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 09/02/2021] [Accepted: 03/14/2022] [Indexed: 02/05/2023] Open
Abstract
Background Wound healing is a representative phenomenon of potato tubers subjected to mechanical injuries. Our previous results found that benzo-(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) promoted the wound healing of potato tubers. However, the molecular mechanism related to inducible wound healing remains unknown. Results Transcriptomic evaluation of healing tissues from potato tubers at three stages, namely, 0 d (nonhealing), 5 d (wounded tubers healed for 5 d) and 5 d (BTH-treated tubers healed for 5 d) using RNA-Seq and differentially expressed genes (DEGs) analysis showed that more than 515 million high-quality reads were generated and a total of 7665 DEGs were enriched, and 16 of these DEGs were selected by qRT-PCR analysis to further confirm the RNA sequencing data. Gene ontology (GO) enrichment analysis indicated that the most highly DEGs were involved in metabolic and cellular processes, and KEGG enrichment analysis indicated that a large number of DEGs were associated with plant hormones, starch and sugar metabolism, fatty acid metabolism, phenylpropanoid biosynthesis and terpenoid skeleton biosynthesis. Furthermore, a few candidate transcription factors, including MYB, NAC and WRKY, and genes related to Ca2+-mediated signal transduction were also found to be differentially expressed during wound healing. Most of these enriched DEGs were upregulated after BTH treatment. Conclusion This comparative expression profile provided useful resources for studies of the molecular mechanism via these promising candidates involved in natural or elicitor-induced wound healing in potato tubers. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08480-1.
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Affiliation(s)
- Hong Jiang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Xue Li
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Li Ma
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Yingyue Ren
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Yang Bi
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China.
| | - Dov Prusky
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China.,Department of Postharvest Science, Agricultural Research Organization, 7505101, Rishon LeZion, Israel
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Ding X, Zhu X, Zheng W, Li F, Xiao S, Duan X. BTH Treatment Delays the Senescence of Postharvest Pitaya Fruit in Relation to Enhancing Antioxidant System and Phenylpropanoid Pathway. Foods 2021; 10:846. [PMID: 33924541 DOI: 10.3390/foods10040846] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 01/03/2023] Open
Abstract
The plant resistance elicitor Benzo (1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) can enhance disease resistance of harvested fruit. Nonetheless, it is still unknown whether BTH plays a role in regulating fruit senescence. In this study, exogenous BTH treatment efficiently delayed the senescence of postharvest pitaya fruit with lower lipid peroxidation level. Furthermore, BTH-treated fruit exhibited lower hydrogen peroxide (H2O2) content, higher contents of reduced ascorbic acid (AsA) and reduced glutathione (GSH) levels and higher ratios of reduced to oxidized glutathione (GSH/GSSG) and ascorbic acid (AsA/DHA), as well as higher activities of ROS scavenging enzymes, including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD) and glutathione reductase (GR) in comparison with control fruit. Moreover, BTH treatment enhanced the activities of phenylpropanoid pathway-related enzymes, including cinnamate-4-hydroxylase (C4H), phenylalanine ammonia-lyase (PAL) and 4-coumarate/coenzyme A ligase (4CL) and the levels of phenolics, flavonoids and lignin. In addition, BTH treatment upregulated the expression of HuSOD1/3/4, HuCAT2, HuAPX1/2 and HuPOD1/2/4 genes. These results suggested that application of BTH delayed the senescence of harvested pitaya fruit in relation to enhanced antioxidant system and phenylpropanoid pathway.
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Burdziej A, Bellée A, Bodin E, Valls Fonayet J, Magnin N, Szakiel A, Richard T, Cluzet S, Corio-Costet MF. Three Types of Elicitors Induce Grapevine Resistance against Downy Mildew via Common and Specific Immune Responses. J Agric Food Chem 2021; 69:1781-1795. [PMID: 33529021 DOI: 10.1021/acs.jafc.0c06103] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Three recognized plant defense stimulators (PDS), methyl jasmonate (MeJA), benzothiadiazole (BTH) and phosphonates (PHOS), were sprayed on grapevine Vitis vinifera cuttings and conferred resistance to the biotrophic pathogen Plasmopara viticola. The effects on molecular defense-related genes and polyphenol content (stilbenes and flavanols) were revealed at 6 and 8 days post-elicitation. The transcript accumulation was consistent with the signaling pathway specific to the elicitor, salicylic acid for BTH, and jasmonic acid for MeJA, with some cross-talks. PHOS tended to modulate the defense responses like BTH. Moreover, in response to a downy mildew inoculation, the leaves pre-treated with PHOS and BTH overproduced pterostilbene, and after MeJA treatment, piceids and ε-viniferin, compared to uninoculated elicitor-treated leaves. These results provide evidence of the different modes of action of PDS and their role in sustainable viticulture.
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Affiliation(s)
- Aleksandra Burdziej
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
- Department of Plant Biochemistry, Faculty of Biology, University of Warsaw, ul. Miecznikowa 1, 02-096 Warszawa, Poland
| | - Anthony Bellée
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
| | - Enora Bodin
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
| | - Josep Valls Fonayet
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
| | - Noël Magnin
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
| | - Anna Szakiel
- Department of Plant Biochemistry, Faculty of Biology, University of Warsaw, ul. Miecznikowa 1, 02-096 Warszawa, Poland
| | - Tristan Richard
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
| | - Stéphanie Cluzet
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
| | - Marie-France Corio-Costet
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
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Abstract
The common bean rust fungus reduces harvests of the dry, edible common bean. Natural resistance genes in the plant can provide protection until a fungal strain that breaks resistance emerges. In this study, we demonstrate that benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester (BTH) sprayed on susceptible beans induces resistance to common bean rust. Protection occurred as soon as 72 h after treatment and resulted in no signs of disease 10 days after inoculation with rust spores. By contrast, the susceptible control plants sustained heavy infections and died. To understand the effect BTH has on the bean proteome, we measured the changes of accumulation for 3,973 proteins using mass spectrometry. The set of 409 proteins with significantly increased accumulation in BTH-treated leaves included receptor-like kinases SOBIR1, CERK1, and LYK5, which perceive pathogens, and EDS1, a regulator of the salicylic acid defense pathway. Other proteins that likely contributed to resistance included pathogenesis-related proteins, a full complement of enzymes that catalyze phenylpropanoid biosynthesis, and protein receptors, transporters, and enzymes that modulate other defense responses controlled by jasmonic acid, ethylene, brassinosteroid, abscisic acid, and auxin. Increases in the accumulation of proteins required for vesicle-mediated protein secretion and RNA splicing occurred as well. By contrast, more than half of the 168 decreases belonged to chloroplast proteins and proteins involved in cell expansion. These results reveal a set of proteins needed for rust resistance and reaffirm the utility of BTH to control disease by amplifying the natural immune system of the bean plant.
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Affiliation(s)
- Bret Cooper
- Soybean Genomics and Improvement Laboratory, USDA-ARS, Beltsville, MD, U.S.A
| | - Hunter S Beard
- Soybean Genomics and Improvement Laboratory, USDA-ARS, Beltsville, MD, U.S.A
| | - Wesley M Garrett
- Animal Biosciences and Biotechnology Laboratory, USDA-ARS, Beltsville, MD, U.S.A
| | - Kimberly B Campbell
- Soybean Genomics and Improvement Laboratory, USDA-ARS, Beltsville, MD, U.S.A
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Bei N, Li X, Tie X, Zhao L, Wu J, Li X, Liu L, Shen Z, Li G. Impact of synoptic patterns and meteorological elements on the wintertime haze in the Beijing-Tianjin-Hebei region, China from 2013 to 2017. Sci Total Environ 2020; 704:135210. [PMID: 31821922 DOI: 10.1016/j.scitotenv.2019.135210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
Meteorological conditions play a key role in formation of air pollution, determining dispersion or accumulation of air pollutants. Aggressive emission mitigation measures have been taken recently in the Beijing-Tianjin-Hebei region (BTH), China, but pervasive and persistent haze still frequently engulfs this region during wintertime. Occurrence frequency of unfavorable meteorological conditions in winter is anticipated to constitute a significantly important factor in driving the heavy haze formation in BTH. Large scale synoptic patterns influencing BTH during the wintertime from 2013 to 2017 are categorized into six types, including "north-low", "southwest-trough", "southeast-high", "southeast-trough", "transition", and "inland-high" using the NCEP reanalysis data. "Southwest-trough" and "southeast-high" are defined as favorable synoptic patterns and the remaining four categories are unfavorable ones based on FLEXPART simulations. Compared to measurements of fine particulate matter (PM2.5) in BTH, favorable synoptic conditions generally correspond to the low level or decreasing trend of PM2.5 concentrations while under unfavorable conditions PM2.5 concentrations are high or increasing. Occurrence of wintertime haze episodes in BTH correlates well with the evolution trend of unfavorable synoptic patterns from 2013 to 2017 although the anthropogenic emissions have substantially decreased. PM2.5 concentrations also exhibit correlations with local meteorological elements, including winds, temperature, and relative humidity, which are ultimately steered by large scale synoptic situations. The WRF-Chem model simulations further reveal the critical role of large-scale synoptic patterns in the heavy haze formation. Overall, under unfavorable synoptic situations, emission mitigation is the best choice to improve the air quality in BTH.
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Affiliation(s)
- Naifang Bei
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Xiaopei Li
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China; Jiangsu XCMG Construction Machinery Research Institute Ltd, Xuzhou, China
| | - Xuexi Tie
- Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Linna Zhao
- State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China
| | - Jiarui Wu
- Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Xia Li
- Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Lang Liu
- Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - Zhenxing Shen
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Guohui Li
- Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, China.
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Wang L, Xiong Q, Wu G, Gautam A, Jiang J, Liu S, Zhao W, Guan H. Spatio-Temporal Variation Characteristics of PM 2.5 in the Beijing-Tianjin-Hebei Region, China, from 2013 to 2018. Int J Environ Res Public Health 2019; 16:ijerph16214276. [PMID: 31689921 PMCID: PMC6862089 DOI: 10.3390/ijerph16214276] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/23/2019] [Accepted: 11/01/2019] [Indexed: 11/16/2022]
Abstract
Air pollution, including particulate matter (PM2.5) pollution, is extremely harmful to the environment as well as human health. The Beijing–Tianjin–Hebei (BTH) Region has experienced heavy PM2.5 pollution within China. In this study, a six-year time series (January 2013–December 2018) of PM2.5 mass concentration data from 102 air quality monitoring stations were studied to understand the spatio-temporal variation characteristics of the BTH region. The average annual PM2.5 mass concentration in the BTH region decreased from 98.9 μg/m3 in 2013 to 64.9 μg/m3 in 2017. Therefore, China has achieved its Air Pollution Prevention and Control Plan goal of reducing the concentration of fine particulate matter in the BTH region by 25% by 2017. The PM2.5 pollution in BTH plain areas showed a more significant change than mountains areas, with the highest PM2.5 mass concentration in winter and the lowest in summer. The results of spatial autocorrelation and cluster analyses showed that the PM2.5 mass concentration in the BTH region from 2013–2018 showed a significant spatial agglomeration, and that spatial distribution characteristics were high in the south and low in the north. Changes in PM2.5 mass concentration in the BTH region were affected by both socio-economic factors and meteorological factors. Our results can provide a point of reference for making PM2.5 pollution control decisions.
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Affiliation(s)
- Lili Wang
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
| | - Qiulin Xiong
- Faculty of Geomatics, East China University of Technology, Nanchang 330013, China.
| | - Gaofeng Wu
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
| | - Atul Gautam
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
| | - Jianfang Jiang
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
| | - Shuang Liu
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
| | - Wenji Zhao
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
| | - Hongliang Guan
- College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
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López-Gresa MP, Payá C, Rodrigo I, Bellés JM, Barceló S, Hae Choi Y, Verpoorte R, Lisón P. Effect of Benzothiadiazole on the Metabolome of Tomato Plants Infected by Citrus Exocortis Viroid. Viruses 2019; 11:E437. [PMID: 31091764 DOI: 10.3390/v11050437] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 11/17/2022] Open
Abstract
Benzothiadiazole (BTH) is a functional analogue of the phytohormone salycilic acid (SA) involved in the plant immune response. NahG tomato plants are unable to accumulate SA, which makes them hypersusceptible to several pathogens. Treatments with BTH increase the resistance to bacterial, fungal, viroid, or viral infections. In this study, metabolic alterations in BTH-treated Money Maker and NahG tomato plants infected by citrus exocortis viroid (CEVd) were investigated by nuclear magnetic resonance spectroscopy. Using multivariate data analysis, we have identified defence metabolites induced after viroid infection and BTH-treatment. Glycosylated phenolic compounds include gentisic and ferulic acid accumulated in CEVd-infected tomato plants, as well as phenylalanine, tyrosine, aspartate, glutamate, and asparagine. Besides, an increase of γ-aminobutyric acid (GABA), glutamine, adenosine, and trigonelline, contributed to a clear discrimination between the metabolome of BTH-treated tomato leaves and their corresponding controls. Among them, GABA was the only metabolite significantly accumulated in both genotypes after the chemical treatment. In view of these results, the addition of GABA was performed on tomato plants infected by CEVd, and a reversion of the NahG hypersusceptibility to CEVd was observed, indicating that GABA could regulate the resistance to CEVd induced by BTH.
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11
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Frąckowiak P, Pospieszny H, Smiglak M, Obrępalska-Stęplowska A. Assessment of the Efficacy and Mode of Action of Benzo(1,2,3)-Thiadiazole-7-Carbothioic Acid S-Methyl Ester ( BTH) and Its Derivatives in Plant Protection Against Viral Disease. Int J Mol Sci 2019; 20:E1598. [PMID: 30935036 PMCID: PMC6480033 DOI: 10.3390/ijms20071598] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 11/17/2022] Open
Abstract
Systemic acquired resistance (SAR) induction is one of the primary defence mechanisms of plants against a broad range of pathogens. It can be induced by infectious agents or by synthetic molecules, such as benzo(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH). SAR induction is associated with increases in salicylic acid (SA) accumulation and expression of defence marker genes (e.g., phenylalanine ammonia-lyase (PAL), the pathogenesis-related (PR) protein family, and non-expressor of PR genes (NPR1)). Various types of pathogens and pests induce plant responses by activating signalling pathways associated with SA, jasmonic acid (JA) and ethylene (ET). This work presents an analysis of the influence of BTH and its derivatives as resistance inducers in healthy and virus-infected plants by determining the expression levels of selected resistance markers associated with the SA, JA, and ET pathways. The phytotoxic effects of these compounds and their influence on the course of viral infection were also studied. Based on the results obtained, the best-performing BTH derivatives and their optimal concentration for plant performance were selected, and their mode of action was suggested. It was shown that application of BTH and its derivatives induces increased expression of marker genes of both the SA- and JA-mediated pathways.
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Affiliation(s)
- Patryk Frąckowiak
- Department of Molecular Biology and Biotechnology, Institute of Plant Protection, National Research Institute, ul. Władysława Węgorka 20, 60-318 Poznań, Poland.
| | - Henryk Pospieszny
- Department of Virology and Bacteriology, Institute of Plant Protection, National Research Institute, ul. Władysława Węgorka 20, 60-318 Poznań, Poland.
| | - Marcin Smiglak
- Poznań Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubież 46, 61-612 Poznań, Poland.
| | - Aleksandra Obrępalska-Stęplowska
- Department of Molecular Biology and Biotechnology, Institute of Plant Protection, National Research Institute, ul. Władysława Węgorka 20, 60-318 Poznań, Poland.
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12
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Wang Q, Zeng Q, Tao J, Sun L, Zhang L, Gu T, Wang Z, Chen L. Estimating PM 2.5 Concentrations Based on MODIS AOD and NAQPMS Data over Beijing⁻Tianjin⁻Hebei. Sensors (Basel) 2019; 19:s19051207. [PMID: 30857313 PMCID: PMC6427133 DOI: 10.3390/s19051207] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 01/02/2019] [Revised: 02/25/2019] [Accepted: 03/05/2019] [Indexed: 11/23/2022]
Abstract
Accurately estimating fine ambient particulate matter (PM2.5) is important to assess air quality and to support epidemiological studies. To analyze the spatiotemporal variation of PM2.5 concentrations, previous studies used different methodologies, such as statistical models or neural networks, to estimate PM2.5. However, there is little research on full-coverage PM2.5 estimation using a combination of ground-measured, satellite-estimated, and atmospheric chemical model data. In this study, the linear mixed effect (LME) model, which used the aerosol optical depth (AOD) from the Moderate Resolution Imaging Spectroradiometer (MODIS), meteorological data, normalized difference vegetation index (NDVI), and elevation data as predictors, was fitted for 2017 over Beijing–Tianjin–Hebei (BTH). The LME model was used to calibrate the PM2.5 concentration using the nested air-quality prediction modeling system (NAQPMS) simulated with ground measurements. The inverse variance weighting (IVW) method was used to fuse satellite-estimated and model-calibrated PM2.5. The results showed a strong agreement with ground measurements, with an overall coefficient (R2) of 0.78 and a root-mean-square error (RMSE) of 26.44 μg/m3 in cross-validation (CV). The seasonal R2 values were 0.75, 0.62, 0.80, and 0.78 in the spring, summer, autumn, and winter, respectively. The fusion results supplement the lack of satellite estimates and can capture more detailed information than the NAQPMS model. Therefore, the results will be helpful for pollution process analyses and health-related studies.
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Affiliation(s)
- Qingxin Wang
- College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China.
- State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences, Beijing 100101, China.
| | - Qiaolin Zeng
- State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences, Beijing 100101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
- Chongqing Engineering Research Center of Spatial Big Data Intelligent Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China.
| | - Jinhua Tao
- State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences, Beijing 100101, China.
| | - Lin Sun
- College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Liang Zhang
- Environmental Emergency and Heavy Pollution Weather Warning Center, Shijiazhuang 050000, China.
| | - Tianyu Gu
- Environmental Emergency and Heavy Pollution Weather Warning Center, Shijiazhuang 050000, China.
| | - Zifeng Wang
- State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences, Beijing 100101, China.
| | - Liangfu Chen
- State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences, Beijing 100101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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13
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Yang H, Tao W, Liu Y, Qiu M, Liu J, Jiang K, Yi K, Xiao Y, Tao S. The contribution of the Beijing, Tianjin and Hebei region's iron and steel industry to local air pollution in winter. Environ Pollut 2019; 245:1095-1106. [PMID: 30682744 DOI: 10.1016/j.envpol.2018.11.088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 06/25/2018] [Revised: 10/19/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
The Beijing, Tianjin and Hebei region (BTH) in China is a highly populated area that has recently experienced frequent haze episodes in winter. With high production capacities, the iron and steel industry (ISI) has long been a key source of air pollutants in BTH and is thus considered responsible for the degradation of local air quality. Here, we conducted a cross-disciplinary research combining the Weather Research and Forecasting with Chemistry (WRF/Chem) model, the multiregional input-output model (MRIO) and the health assessment model to explore the impacts of the ISI on air pollution in the BTH region in January 2012. Our results show large increases in air pollution due to direct ISI emissions, with up to a 90 μg/m3 monthly average of fine particulate matter (PM2.5) and sulfur dioxide (SO2) in eastern Tangshan and western Handan. In addition to direct emissions, the ISI has induced large quantities of indirect emissions from upstream sectors (e.g., the electricity and transportation sectors), leading to PM2.5, SO2 and NOx increases of 2-10 μg/m3 in BTH. Considering the direct and indirect emissions, we estimated that 275 (233-313) PM2.5-related mortalities occurred in January, and approximately 42% of these premature deaths occurred in Tangshan. A high rate of premature deaths also occurred in urban Beijing due to its high population density. Revealing the great health burden caused by the ISI, our results underscore the necessity for the Chinese government to reduce air pollutant emissions from the ISI and its upstream industries in BTH.
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Affiliation(s)
- Haozhe Yang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Wei Tao
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128, Germany
| | - Ying Liu
- School of Statistics, University of International Business and Economics, Beijing, 100029, China
| | - Minghao Qiu
- Institute for Data, Systems and Society and Earth, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, United States
| | - Junfeng Liu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
| | - Kejun Jiang
- Energy Research Institute, Guohong Mansion, Xicheng District, Beijing, 100038, China
| | - Kan Yi
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Yao Xiao
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Shu Tao
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
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Veronico P, Paciolla C, Pomar F, De Leonardis S, García-Ulloa A, Melillo MT. Changes in lignin biosynthesis and monomer composition in response to benzothiadiazole and root-knot nematode Meloidogyne incognita infection in tomato. J Plant Physiol 2018; 230:40-50. [PMID: 30145275 DOI: 10.1016/j.jplph.2018.07.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 02/01/2018] [Revised: 07/19/2018] [Accepted: 07/31/2018] [Indexed: 05/27/2023]
Abstract
Benzothiadiazole (BTH) acts as a priming agent in plant defence leading to a reduction in penetration and development of the root-knot nematode Meloidogyne incognita in susceptible tomato roots. Changes in lignin biosynthesis in the susceptible tomato cv. Roma following nematode infection and/or BTH treatment were investigated in comparison to the resistant cv. Rossol. Both untreated and BTH-treated susceptible infected roots (galls) showed an increased level of expression of lignin synthesis-related genes (PAL, C4H, HCT and F5H) at early times during infection (2-4 days post inoculation). Peroxidase (soluble and cell-wall bound, POX) enzyme activities increased after inoculation with M. incognita and the priming effect of BTH treatment was evident at later stages of infection (7 days post inoculation). As expected, the induction of PAL and POXs and lignin synthesis-related genes was faster and greater in resistant roots after infection. Histochemical analysis revealed accumulation of higher lignin levels at later infection stages in BTH-treated galls compared to untreated ones. Furthermore, the monomer composition of lignin indicated a different composition in guaiacyl (G) and syringyl (S) units in BTH-treated galls compared to untreated galls. The increase in G units made G/S ratio similar to that in the resistant genotype. Overall, lignin played a critical role in tomato defence to M. incognita in response to BTH.
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Affiliation(s)
- Pasqua Veronico
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, Via G. Amendola 122/D, 70126 Bari, Italy.
| | - Costantino Paciolla
- Dipartimento di Biologia, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy.
| | - Federico Pomar
- Departamento de Biología Animal, Biología Vexetal e Ecología, Facultade de Ciencias, Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071, A Coruña, Spain.
| | - Silvana De Leonardis
- Dipartimento di Biologia, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy.
| | - Alba García-Ulloa
- Departamento de Biología Animal, Biología Vexetal e Ecología, Facultade de Ciencias, Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071, A Coruña, Spain.
| | - Maria Teresa Melillo
- Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, Via G. Amendola 122/D, 70126 Bari, Italy.
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Bellée A, Cluzet S, Dufour MC, Mérillon JM, Corio-Costet MF. Comparison of the Impact of Two Molecules on Plant Defense and on Efficacy against Botrytis cinerea in the Vineyard: A Plant Defense Inducer (Benzothiadiazole) and a Fungicide (Pyrimethanil). J Agric Food Chem 2018; 66:3338-3350. [PMID: 29557656 DOI: 10.1021/acs.jafc.7b05725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Grapevine is subject to diseases that affect yield and wine quality caused by various pathogens including Botrytis cinerea. To limit the use of fungicides, an alternative is to use plant elicitors such as benzothiadiazole (BTH). We investigated the effect of a fungicide (Pyrimethanil) and an elicitor (benzothiadiazole) on plant defenses. Applications for two consecutive years in the vineyard significantly reduced gray mold. Two and seven days after treatments, the expressions of 48 genes involved in defenses showed differential modulation (up- or down-regulation) depending on treatment. Some genes were identified as potential markers of protection and were linked to an increase in total polyphenols (TP) in leaves. Surprisingly, the fungicide also induced the expression of defense genes and increased the polyphenol content. This suggests that BTH acts as an efficient elicitor in the vineyard and that Pyrimethanil may act, in part, as a defense-inducing agent on the vine.
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Affiliation(s)
- Anthony Bellée
- UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032 , INRA , 33882 Villenave d'Ornon , France
| | - Stéphanie Cluzet
- Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (GESVAB), Institut des Sciences de la Vigne et du Vin, CS 50008 , Université de Bordeaux , 33882 Villenave d'Ornon , France
| | - Marie-Cécile Dufour
- UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032 , INRA , 33882 Villenave d'Ornon , France
| | - Jean-Michel Mérillon
- Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (GESVAB), Institut des Sciences de la Vigne et du Vin, CS 50008 , Université de Bordeaux , 33882 Villenave d'Ornon , France
| | - Marie-France Corio-Costet
- UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032 , INRA , 33882 Villenave d'Ornon , France
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16
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Lavergne F, Richard C, Saudreau M, Venisse JS, Fumanal B, Goupil P. Effect of acibenzolar-S-methyl phototransformation on its elicitation activity in tobacco cells. Plant Physiol Biochem 2017; 118:370-376. [PMID: 28710944 DOI: 10.1016/j.plaphy.2017.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 03/31/2017] [Revised: 06/21/2017] [Accepted: 07/06/2017] [Indexed: 06/07/2023]
Abstract
The plant activator acibenzolar-S-methyl (BTH) undergoes phototransformation when exposed to solar radiation. Here we investigated the changes in its elicitation properties on BY-2 tobacco cells at different stages of the photochemical reaction. Both pure BTH and formulated BTH were irradiated in controlled conditions to achieve different extents of conversion. Both pure BTH (900 μM) and Bion® (0.4 g.L-1) induced BY-2 cell death, but BTH photoconverted to an extent of 25 ± 3% lowered the cell death rate. A kinetic study of β-1,3-glucanase and chitinase activities was conducted on BY-2 extracellular medium. Exposure of tobacco cells to either pure BTH or Bion® resulted in a significant increase in the activities of both defense enzymes, which peaked 48 h after the treatment. The pathogenesis-related (PR) protein activities were quantified 48 h after elicitation for a range of phototransformed BTH solutions. The enzyme activities were reduced when BY-2 cells were treated with solutions in which BTH conversion was 22 ± 3%, 42 ± 3% and 100 ± 3%, but were not affected by the solution in which BTH was phototransformed at 60%, suggesting that some of the secondary photoproducts also exhibit eliciting properties. Solar irradiation of BTH thus impairs its elicitation properties, but this impairment depends strongly on the extent of phototransformation.
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Affiliation(s)
- Florent Lavergne
- Université Clermont Auvergne, UMR 547-UBP/INRA PIAF, Campus universitaire des Cézeaux, 8 Avenue Blaise Pascal, 63178 Aubière Cedex, France; INRA, UMR 547 PIAF, Clermont-Ferrand, France
| | - Claire Richard
- Université Clermont Auvergne, CNRS, UMR 6296, Campus universitaire des Cézeaux, Institut de Chimie de Clermont-Ferrand (ICCF), 24 Avenue Blaise Pascal, 63178 Aubière Cedex, France; Equipe Photochimie CNRS, UMR 6296, ICCF, 63178 Aubière, France
| | | | - Jean-Stéphane Venisse
- Université Clermont Auvergne, UMR 547-UBP/INRA PIAF, Campus universitaire des Cézeaux, 8 Avenue Blaise Pascal, 63178 Aubière Cedex, France; INRA, UMR 547 PIAF, Clermont-Ferrand, France
| | - Boris Fumanal
- Université Clermont Auvergne, UMR 547-UBP/INRA PIAF, Campus universitaire des Cézeaux, 8 Avenue Blaise Pascal, 63178 Aubière Cedex, France; INRA, UMR 547 PIAF, Clermont-Ferrand, France
| | - Pascale Goupil
- Université Clermont Auvergne, UMR 547-UBP/INRA PIAF, Campus universitaire des Cézeaux, 8 Avenue Blaise Pascal, 63178 Aubière Cedex, France; INRA, UMR 547 PIAF, Clermont-Ferrand, France.
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17
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Abstract
Macroautophagy (hereafter as autophagy), is a metabolic process for sequestration of cytoplasmic cargos into a double membrane structure named as autophagosome. In plants, autophagy is required for nutrition mobilization/recycling and clearance of protein aggregates or damaged organelles during starvation or other unfavorable conditions, as well as for plant immunity during pathogen infection. Multiple experimental approaches have been developed to elucidate the autophagic activity. To facilitate further investigations on the potential involvement of autophagy in protein secretion process in plant cells, here we describe detailed protocols to measure the autophagic activity in model plant Arabidopsis. Using the autophagosome marker ATG8 and a novel autophagic regulator SH3P2 as examples, we illustrate the major cell biology tools and methods using microscopy to analyze the autophagosomal structures in plant cells, including BTH-induced autophagic response, transient expression and colocalization analysis, as well as immuno-EM labeling.
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Affiliation(s)
- Weili Lin
- State Key Laboratory of Agrobiotechnology, Centre for Cell & Developmental Biology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Xiaohong Zhuang
- State Key Laboratory of Agrobiotechnology, Centre for Cell & Developmental Biology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
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Dufour MC, Magnin N, Dumas B, Vergnes S, Corio-Costet MF. High-throughput gene-expression quantification of grapevine defense responses in the field using microfluidic dynamic arrays. BMC Genomics 2016; 17:957. [PMID: 27875995 PMCID: PMC5120521 DOI: 10.1186/s12864-016-3304-z] [Citation(s) in RCA: 23] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 11/16/2016] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The fight against grapevine diseases due to biotrophic pathogens usually requires the massive use of chemical fungicides with harmful environmental effects. An alternative strategy could be the use of compounds able to stimulate plant immune responses which significantly limit the development of pathogens in laboratory conditions. However, the efficiency of this strategy in natura is still insufficient to be included in pest management programs. To understand and to improve the mode of action of plant defense stimulators in the field, it is essential to develop reliable tools that describe the resistance status of the plant upon treatment. RESULTS We have developed a pioneering tool ("NeoViGen96" chip) based on a microfluidic dynamic array platform allowing the expression profiling of 85 defense-related grapevine genes in 90 cDNA preparations in a 4 h single run. Two defense inducers, benzothiadiazole (BTH) and fosetyl-aluminum (FOS), have been tested in natura using the "NeoViGen96" chip as well as their efficacy against downy mildew. BTH-induced grapevine resistance is accompanied by the induction of PR protein genes (PR1, PR2 and PR3), genes coding key enzymes in the phenylpropanoid pathway (PAL and STS), a GST gene coding an enzyme involved in the redox status and an ACC gene involved in the ethylene pathway. FOS, a phosphonate known to possess a toxic activity against pathogens and an inducing effect on defense genes provided a better grapevine protection than BTH. Its mode of action was probably strictly due to its fungicide effect at high concentrations because treatment did not induce significant change in the expression level of selected defense-related genes. CONCLUSIONS The NeoViGen96" chip assesses the effectiveness of plant defense inducers on grapevine in vineyard with an excellent reproducibility. A single run with this system (4 h and 1,500 €), corresponds to 180 qPCR plates with conventional Q-PCR assays (Stragene system, 270 h and 9,000 €) thus a throughput 60-70 times higher and 6 times cheaper. Grapevine responses after BTH elicitation in the vineyard were similar to those obtained in laboratory conditions, whereas our results suggest that the protective effect of FOS against downy mildew in the vineyard was only due to its fungicide activity since no activity on plant defense genes was observed. This tool provides better understanding of how the grapevine replies to elicitation in its natural environment and how the elicitor potential can be used to reduce chemical fungicide inputs.
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Affiliation(s)
- Marie-Cécile Dufour
- INRA, UMR Santé et Agroécologie du vignoble (SAVE-1065), CS 20032, ISVV, 33882 Villenave d’Ornon, CEDEX France
| | - Noël Magnin
- INRA, UMR Santé et Agroécologie du vignoble (SAVE-1065), CS 20032, ISVV, 33882 Villenave d’Ornon, CEDEX France
| | - Bernard Dumas
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, Auzeville, F-31326 Castanet-Tolosan, France
- CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Sophie Vergnes
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, Auzeville, F-31326 Castanet-Tolosan, France
- CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Marie-France Corio-Costet
- INRA, UMR Santé et Agroécologie du vignoble (SAVE-1065), CS 20032, ISVV, 33882 Villenave d’Ornon, CEDEX France
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Zhu X, Lin H, Si Z, Xia Y, Chen W, Li X. Benzothiadiazole-Mediated Induced Resistance to Colletotrichum musae and Delayed Ripening of Harvested Banana Fruit. J Agric Food Chem 2016; 64:1494-502. [PMID: 26871966 DOI: 10.1021/acs.jafc.5b05655] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Benzothiadiazole (BTH) works as a plant activator. The effects of different BTH treatments and fungicides SPORGON on fruit ripening and disease incidence were investigated. The results showed that BTH treatment significantly delayed fruit ripening, maintained fruit firmness, color, and good fruit quality, and dramatically reduced the incidence of disease. BTH effectively inhibited the invasion and development of pathogenic bacteria and controlled the occurrence of disease. BTH treatment enhanced the activities of defense-related enzymes, including chitinase, phenylalanine ammonia-lyase, peroxidase, and polyphenol oxidase, increased the content of hydrogen peroxide and total antioxidant capacity, and reduced malondialdehyde content. Cellular structure analysis after inoculation confirmed that BTH treatment effectively maintained the cell structural integrity. SPORGON did not provide benefits for delaying fruit ripening or for the resistance system, while it can control the disease only during the earlier stage and not at later stages.
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Affiliation(s)
- Xiaoyang Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, College of Horticulture, South China Agricultural University , Guangzhou 510642, P. R. China
| | - Huanzhang Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, College of Horticulture, South China Agricultural University , Guangzhou 510642, P. R. China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology , Guangzhou 510006, P. R. China
| | - Zhenwei Si
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, College of Horticulture, South China Agricultural University , Guangzhou 510642, P. R. China
| | - Yihua Xia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, College of Horticulture, South China Agricultural University , Guangzhou 510642, P. R. China
- Hainan University , Haikou, Hainan Province 570228, P. R. China
| | - Weixin Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, College of Horticulture, South China Agricultural University , Guangzhou 510642, P. R. China
| | - Xueping Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, College of Horticulture, South China Agricultural University , Guangzhou 510642, P. R. China
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Tayeh C, Randoux B, Bourdon N, Reignault P. Lipid metabolism is differentially modulated by salicylic acid and heptanoyl salicylic acid during the induction of resistance in wheat against powdery mildew. J Plant Physiol 2013; 170:1620-1629. [PMID: 23880093 DOI: 10.1016/j.jplph.2013.06.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 04/05/2013] [Revised: 06/24/2013] [Accepted: 06/24/2013] [Indexed: 06/02/2023]
Abstract
Heptanoyl salicylic acid (HSA) is a salicylic acid (SA) derivative obtained by esterification of 2-OH benzoic acid with heptanoic acid. In wheat, the protection levels obtained against Blumeria graminis f. sp. tritici (Bgt) increased from 50% with SA to 95% with HSA. Using molecular, biochemical and cytological approaches, we investigated here how wheat lipid metabolism is differentially activated by SA and HSA in both infectious and non-infectious conditions, and how Bgt infectious process is altered by both inducers. First, in the absence of Bgt, continuous lipoxygenase (LOX)-encoding gene expression and corresponding activity were specifically induced by HSA. Moreover, compared to SA, HSA treatment resulted in earlier up-regulations of the phospholipase C2-encoding gene expression and it specifically affected the expression of a lipid transfer protein-encoding gene. In infectious context, both HSA and SA sprayings impaired penetration events and therefore haustorium formation, leading to less frequent fungal colonies. While this alteration only slowed down the evolution of Bgt infectious process in SA-sprayed leaves, it completely impaired the establishment of successful infectious events in HSA-sprayed leaves. In addition, HSA induced continuous increases of a LOX-encoding gene expression and of the corresponding LOX activity when compared to SA-sprayed leaves. Lipid metabolism is therefore overall highly responsive to HSA spraying and could represent effective defence mechanism triggered during the induction of resistance in wheat toward Bgt. The concepts of priming and energy costs of the defences induced by SA and HSA are also discussed.
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Affiliation(s)
- Christine Tayeh
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), GIS PhyNoPi, Université du Littoral Côte d'Opale, C.S. 80699, F-62228 Calais cedex, France
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21
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Park YS, Ryu CM. Understanding cross-communication between aboveground and belowground tissues via transcriptome analysis of a sucking insect whitefly-infested pepper plants. Biochem Biophys Res Commun 2013; 443:272-7. [PMID: 24309116 DOI: 10.1016/j.bbrc.2013.11.105] [Citation(s) in RCA: 14] [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: 11/15/2013] [Accepted: 11/24/2013] [Indexed: 11/28/2022]
Abstract
Plants have developed defensive machinery to protect themselves against herbivore and pathogen attacks. We previously reported that aboveground whitefly (Bemisia tabaci Genn.) infestation elicited induced resistance in leaves and roots and influenced the modification of the rhizosphere microflora. In this study, to obtain molecular evidence supporting these plant fitness strategies against whitefly infestation, we performed a 300 K pepper microarray analysis using leaf and root tissues of pepper (Capsicum annuum L.) applied with whitefly, benzo-(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH), and the combination of BTH+whitefly. We defined differentially expressed genes (DEGs) as genes exhibiting more than 2-fold change (1.0 based on log2 values) in expression in leaves and roots in response to each treatment compared to the control. We identified a total of 16,188 DEGs in leaves and roots. Of these, 6685, 6752, and 4045 DEGs from leaf tissue and 6768, 7705, and 7667 DEGs from root tissue were identified in the BTH, BTH+whitefly, and whitefly treatment groups, respectively. The total number of DEGs was approximately two-times higher in roots than in whitefly-infested leaves subjected to whitefly infestation. Among DEGs, whitefly feeding induced salicylic acid and jasmonic acid/ethylene-dependent signaling pathways in leaves and roots. Several transporters and auxin-responsive genes were upregulated in roots, which can explain why biomass increase is facilitated. Using transcriptome analysis, our study provides new insights into the molecular basis of whitefly-mediated intercommunication between aboveground and belowground plant tissues and provides molecular evidence that may explain the alteration of rhizosphere microflora and root biomass by whitefly infestation.
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Affiliation(s)
- Yong-Soon Park
- Molecular Phytobacteriology Laboratory, Superbacteria Research Center, KRIBB, Daejeon 305-806, South Korea
| | - Choong-Min Ryu
- Molecular Phytobacteriology Laboratory, Superbacteria Research Center, KRIBB, Daejeon 305-806, South Korea; Biosystems and Bioengineering Program, University of Science and Technology (UST), Daejeon 305-333, South Korea.
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Luzzatto-Knaan T, Kerem Z, Lipsky A, Yedidia I. A systemic response of geophytes is demonstrated by patterns of protein expression and the accumulation of signal molecules in Zantedeschia aethiopica. Plant Physiol Biochem 2013; 71:218-225. [PMID: 23968930 DOI: 10.1016/j.plaphy.2013.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 05/13/2013] [Accepted: 07/25/2013] [Indexed: 06/02/2023]
Abstract
In geophyte plants, such as Zantedeschia, individual leaves are directly connected to a specialized underground storage organ (rhizome/tuber), raising a question regarding systemic resistance as a mechanism of defense. A systemic response requires a transfer of a signal through the storage organ which has been evolutionary adapted to store food, minerals and moisture for seasonal growth and development. We have characterized the nature of induced defense responses in Zantedeschia aethiopica, a rhizomatous (tuber-like) ornamental plant by the application of local elicitation using two well-known defense elicitors, benzo-(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) and methyl jasmonate (MJ). The system consisted leaves in which local responses were directly induced, and systemically responsive leaves in which defense molecules were detected, demonstrating a transported vascular signal. Using anatomical and biochemical tools and local elicitation with MJ, the systemic nature of the response was verified in adjacent leaves by unique protein expression patterns; similarly polyphenol oxidase (PPO) activity was found to increase systemically in all parts of the locally induced plants, including the rhizome, and adjacent leaves; finally, significant accumulation of defense signal molecules such as salicylic and jasmonic acids was recorded in local and systemic leaves following elicitation with BTH. Anatomical sections through the leaves and the rhizome revealed that to be transferred from one leaf to its neighbor, signal molecules must have been transferred through the storage organ. The collected data strongly support our hypothesis that defense signals may and are transferred through the storage organ in monocot geophytes.
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Affiliation(s)
- Tal Luzzatto-Knaan
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel; Department of Ornamental Horticulture, ARO, The Volcani Center, Derech Hamacabim 20, P.O. Box 6, Bet-Dagan 50250, Israel
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Baldoni E, Mattana M, Locatelli F, Consonni R, Cagliani LR, Picchi V, Abbruscato P, Genga A. Analysis of transcript and metabolite levels in Italian rice (Oryza sativa L.) cultivars subjected to osmotic stress or benzothiadiazole treatment. Plant Physiol Biochem 2013; 70:492-503. [PMID: 23860229 DOI: 10.1016/j.plaphy.2013.06.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 11/26/2012] [Accepted: 06/19/2013] [Indexed: 04/30/2023]
Abstract
One of the major objectives of rice (Oryza sativa L.) breeding programs is the development of new varieties with higher tolerance/resistance to both abiotic and biotic stresses. In this study, Italian rice cultivars were subjected to osmotic stress or benzothiadiazole (BTH) treatments. An analysis of the expression of selected genes known to be involved in the stress response and (1)H nuclear magnetic resonance ((1)H NMR) metabolic profiling were combined with multivariate statistical analyses to elucidate potential correlations between gene expression or metabolite content and observed tolerant/resistant phenotypes. We observed that the expression of three chosen genes (two WRKY genes and one peroxidase encoding gene) differed between susceptible and resistant cultivars in response to BTH treatments. Moreover, the analysis of metabolite content, in particular in the osmotic stress experiment, enabled discrimination between selected cultivars based on differences in the accumulation of some primary metabolites, primarily sugars. This research highlights the potential usefulness of this approach to characterise rice varieties based on transcriptional or metabolic changes due to adverse environmental conditions.
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Affiliation(s)
- Elena Baldoni
- Istituto di Biologia e Biotecnologia Agraria, C.N.R., via E. Bassini 15, 20133 Milano, Italy
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Asimakopoulos AG, Wang L, Thomaidis NS, Kannan K. Benzotriazoles and benzothiazoles in human urine from several countries: a perspective on occurrence, biotransformation, and human exposure. Environ Int 2013; 59:274-281. [PMID: 23850588 DOI: 10.1016/j.envint.2013.06.007] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 06/02/2023]
Abstract
Benzotriazole (BTR) and benzothiazole (BTH) derivatives are high-production-volume chemicals that are mainly used as corrosion inhibitors, and are widely distributed in the environment. BTR derivatives are found in plastics, dishwasher detergents, dry cleaning equipment, and de-icing/anti-icing fluids. BTH derivatives are found in rubber materials, herbicides, slimicides, algicides, fungicides, photosensitizers, azo dyes, drugs, de-icing/anti-icing fluids, and food flavors. However, exposure of humans to BTRs and BTHs is still not known. In this study, six BTRs (1H-benzotriazole, 1-hydroxy-benzotriazole, 4- and 5-hydroxy-benzotriazole [mixture of two isomers], tolyltriazole, xylyltriazole [or 5,6-dimethyl-1H-benzotriazole], and 5-chloro-benzotriazole) and six BTHs (benzothiazole, 2-morpholin-4-yl-benzothiazole, 2-hydroxy-benzothiazole, 2-methylthio-benzothiazole, 2-amino-benzothiazole, and 2-thiocyanomethylthio-benzothiazole) were determined in human urine collected from general populations in seven countries (the U.S., Greece, Vietnam, Korea, Japan, China, and India). The median urinary concentration of the sum of five BTRs (Σ5BTRs; 4- and 5-hydroxy-benzotriazole were not included) ranged from 0.2 (Korea) to 2.8 (India)ng/mL among the countries studied, with the highest concentration of 24.5ng/mL found in a sample from China. Xylyltriazole was found more frequently in urine from all five Asian countries than in urine from the U.S. and Greece. The median concentration of the sum of the six BTHs (Σ6BTHs) ranged from 3.6 (U.S.) to 10.9 (Japan)ng/mL among the countries studied, with a maximum detection rate of 100% in urine samples from Vietnam; BTH was the predominant derivative, accounting for, on average, 43% of the Σ6BTH concentration. Based on the concentrations and detection rates of several BTR and BTH derivatives in urine, possible metabolic transformation pathways of these compounds were presented and human exposure doses calculated. The estimated daily intake doses of BTRs and BTHs were on the order of a few to few tens of micrograms per day.
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Affiliation(s)
- Alexandros G Asimakopoulos
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, New York 12201-0509, United States.
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Aryal SK, Davis RF, Stevenson KL, Timper P, Ji P. Influence of infection of cotton by rotylenchulus reniformis and meloidogyne incognita on the production of enzymes involved in systemic acquired resistance. J Nematol 2011; 43:152-159. [PMID: 23431029 PMCID: PMC3547351] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Indexed: 06/01/2023] Open
Abstract
Systemic acquired resistance (SAR), which results in enhanced defense mechanisms in plants, can be elicited by virulent and avirulent strains of pathogens including nematodes. Recent studies of nematode reproduction strongly suggest that Meloidogyne incognita and Rotylenchulus reniformis induce SAR in cotton, but biochemical evidence of SAR was lacking. Our objective was to determine whether infection of cotton by M. incognita and R. reniformis increases the levels of P-peroxidase, G-peroxidase, and catalase enzymes which are involved in induced resistance. A series of greenhouse trials was conducted; each trial included six replications of four treatments applied to one of three cotton genotypes in a randomized complete block design. The four treatments were cotton plants inoculated with i) R. reniformis, ii) M. incognita, iii) BTH (Actigard), and iv) a nontreated control. Experiments were conducted on cotton genotypes DP 0935 B2RF (susceptible to both nematodes), LONREN-1 (resistant to R. reniformis), and M-120 RNR (resistant to M. incognita), and the level of P-peroxidase, G-peroxidase, and catalase activity was measured before and 2, 4, 6, 10, and 14 d after treatment application. In all cotton genotypes, activities of all three enzymes were higher (P ≤ 0.05) in leaves of plants infected with M. incognita and R. reniformis than in the leaves of control plants, except that M. incognita did not increase catalase activity on LONREN-1. Increased enzyme activity was usually apparent 6 d after treatment. This study documents that infection of cotton by M. incognita or R. reniformis increases the activity of the enzymes involved in systemic acquired resistance; thereby providing biochemical evidence to substantiate previous reports of nematode-induced SAR in cotton.
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Affiliation(s)
- Sudarshan K Aryal
- Department of Plant Pathology, University of Georgia, Tifton, GA 31793
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