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Cao X, Ye X, Sattar A. Transcriptomic and coexpression network analyses revealed the regulatory mechanism of Cydia pomonella infestation on the synthesis of phytohormones in walnut husks. PeerJ 2024; 12:e18130. [PMID: 39329139 PMCID: PMC11426320 DOI: 10.7717/peerj.18130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 08/28/2024] [Indexed: 09/28/2024] Open
Abstract
The codling moth (Cydia pomonella) has a major effect on the quality and yield of walnut fruit. Plant defences respond to insect infestation by activating hormonal signalling and the flavonoid biosynthetic pathway. However, little is known about the role of walnut husk hormones and flavonoid biosynthesis in response to C. pomonella infestation. The phytohormone content assay revealed that the contents of salicylic acid (SA), abscisic acid (ABA), jasmonic acid (JA), jasmonic acid-isoleucine conjugate (JA-ILE), jasmonic acid-valine (JA-Val) and methyl jasmonate (MeJA) increased after feeding at different time points (0, 12, 24, 36, 48, and 72 h) of walnut husk. RNA-seq analysis of walnut husks following C. pomonella feeding revealed a temporal pattern in differentially expressed genes (DEGs), with the number increasing from 3,988 at 12 h to 5,929 at 72 h postfeeding compared with the control at 0 h postfeeding. Walnut husks exhibited significant upregulation of genes involved in various defence pathways, including flavonoid biosynthesis (PAL, CYP73A, 4CL, CHS, CHI, F3H, ANS, and LAR), SA (PAL), ABA (ZEP and ABA2), and JA (AOS, AOC, OPR, JAZ, and MYC2) pathways. Three gene coexpression networks that had a significant positive association with these hormonal changes were constructed based on the basis of weighted gene coexpression network analysis (WGCNA). We identified several hub transcription factors, including the turquoise module (AIL6, MYB4, PRE6, WRKY71, WRKY31, ERF003, and WRKY75), the green module (bHLH79, PCL1, APRR5, ABI5, and ILR3), and the magenta module (ERF27, bHLH35, bHLH18, TIFY5A, WRKY31, and MYB44). Taken together, these findings provide useful genetic resources for exploring the defence response mediated by phytohormones in walnut husks.
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Affiliation(s)
- Xiaoyan Cao
- College of Horticulture, Xinjiang Agriculture University, Urumqi, China
| | - Xiaoqin Ye
- College of Forestry and Landscape Architecture, Xinjiang Agriculture University, Urumqi, China
| | - Adil Sattar
- College of Forestry and Landscape Architecture, Xinjiang Agriculture University, Urumqi, China
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2
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Kapp ABP, Vechia JFD, Sinico TE, Bassanezi RB, Ramos-González PL, Freitas-Astúa J, Andrade DJ. Brevipalpus yothersi Baker (Tenuipalpidae) development in sweet orange plants is influenced by previous mite infestation and the presence of shelters. EXPERIMENTAL & APPLIED ACAROLOGY 2024; 92:759-775. [PMID: 38512422 DOI: 10.1007/s10493-024-00903-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/22/2024] [Indexed: 03/23/2024]
Abstract
Citrus leprosis is the most important viral disease affecting citrus. The disease is caused predominantly by CiLV-C and is transmitted by Brevipalpus yothersi Baker mites. This study brings some insight into the colonization of B. yothersi in citrus [(Citrus × sinensis (L.) Osbeck (Rutaceae)] previously infested by viruliferous or non-viruliferous B. yothersi. It also assesses the putative role of shelters on the behavior of B. yothersi. Expression of PR1 and PR4 genes, markers of plant defense mechanisms, were evaluated by RT-qPCR to correlate the role of the plant hormonal changes during the tri-trophic virus-mite-plant interplay. A previous infestation with either non-viruliferous and viruliferous mites positively influenced oviposition and the number of adult individuals in the resulting populations. Mite populations were higher on branches that had received a previous mite infestation than branches that did not. There was an increase in the expression of PR4, a marker gene in the jasmonic acid (JA) pathway, in the treatment with non-viruliferous mites, indicating a response from the plant to their feeding. Conversely, an induced expression of PR1, a marker gene in the salicylic acid (SA) pathway, was observed mainly in the treatment with viruliferous mites, which suggests the activation of a plant response against the pathogen. The earlier mite infestation, as well as the presence of leprosis lesions and a gypsum mixture as artificial shelters, all fostered the growth of the B. yothersi populations after the second infestation, regardless of the presence or absence of CiLV-C. Furthermore, it is suggested that B. yothersi feeding actually induces the JA pathway in plants. At the same time, the CiLV-C represses the JA pathway and induces the SA pathway, which benefits the mite vector.
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Affiliation(s)
- Ana Beatriz Piai Kapp
- Laboratório de Acarologia (AcaroLab), Faculdade de Ciências Agrárias e Veterinárias (FCAV-Unesp), Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/nº, Jaboticabal, São Paulo, CEP 14884-900, Brazil
| | - Jaqueline Franciosi Della Vechia
- Laboratório de Acarologia (AcaroLab), Faculdade de Ciências Agrárias e Veterinárias (FCAV-Unesp), Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/nº, Jaboticabal, São Paulo, CEP 14884-900, Brazil
| | - Thaís Elise Sinico
- Instituto Biológico/IB, São Paulo, São Paulo, 04014-002, Brazil
- Centro de Citricultura Sylvio Moreira/IAC, Cordeirópolis, São Paulo, 13490-970, Brazil
| | | | | | - Juliana Freitas-Astúa
- Instituto Biológico/IB, São Paulo, São Paulo, 04014-002, Brazil
- Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, 44380-000, Brazil
| | - Daniel Júnior Andrade
- Laboratório de Acarologia (AcaroLab), Faculdade de Ciências Agrárias e Veterinárias (FCAV-Unesp), Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/nº, Jaboticabal, São Paulo, CEP 14884-900, Brazil.
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Złotkowska E, Wlazło A, Kiełkiewicz M, Misztal K, Dziosa P, Soja K, Barczak-Brzyżek A, Filipecki M. Automated imaging coupled with AI-powered analysis accelerates the assessment of plant resistance to Tetranychus urticae. Sci Rep 2024; 14:8020. [PMID: 38580663 PMCID: PMC10997613 DOI: 10.1038/s41598-024-58249-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 03/27/2024] [Indexed: 04/07/2024] Open
Abstract
The two-spotted spider mite (TSSM), Tetranychus urticae, is among the most destructive piercing-sucking herbivores, infesting more than 1100 plant species, including numerous greenhouse and open-field crops of significant economic importance. Its prolific fecundity and short life cycle contribute to the development of resistance to pesticides. However, effective resistance loci in plants are still unknown. To advance research on plant-mite interactions and identify genes contributing to plant immunity against TSSM, efficient methods are required to screen large, genetically diverse populations. In this study, we propose an analytical pipeline utilizing high-resolution imaging of infested leaves and an artificial intelligence-based computer program, MITESPOTTER, for the precise analysis of plant susceptibility. Our system accurately identifies and quantifies eggs, feces and damaged areas on leaves without expert intervention. Evaluation of 14 TSSM-infested Arabidopsis thaliana ecotypes originating from diverse global locations revealed significant variations in symptom quantity and distribution across leaf surfaces. This analytical pipeline can be adapted to various pest and host species, facilitating diverse experiments with large specimen numbers, including screening mutagenized plant populations or phenotyping polymorphic plant populations for genetic association studies. We anticipate that such methods will expedite the identification of loci crucial for breeding TSSM-resistant plants.
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Affiliation(s)
- Ewelina Złotkowska
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Anna Wlazło
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Małgorzata Kiełkiewicz
- Department of Applied Entomology, Institute of Horticultural Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Krzysztof Misztal
- Faculty of Mathematics and Computer Science, Jagiellonian University, Kraków, Poland
- diCELLa Ltd., Kraków, Poland
| | - Paulina Dziosa
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | | | - Anna Barczak-Brzyżek
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Marcin Filipecki
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland.
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Cui JR, Zhou B, Tang YJ, Zhou JY, Ren L, Liu F, Hoffmann AA, Hong XY. A new spider mite elicitor triggers plant defence and promotes resistance to herbivores. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1493-1509. [PMID: 37952109 DOI: 10.1093/jxb/erad452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
Herbivore-associated elicitors (HAEs) are active molecules produced by herbivorous insects. Recognition of HAEs by plants induces defence that resist herbivore attacks. We previously demonstrated that the tomato red spider mite Tetranychus evansi triggered defence in Nicotiana benthamiana. However, our knowledge of HAEs from T. evansi remains limited. Here, we characterize a novel HAE, Te16, from T. evansi and dissect its function in mite-plant interactions. We investigate the effects of Te16 on spider mites and plants by heterologous expression, virus-induced gene silencing assay, and RNA interference. Te16 induces cell death, reactive oxygen species (ROS) accumulation, callose deposition, and jasmonate (JA)-related responses in N. benthamiana leaves. Te16-mediated cell death requires a calcium signalling pathway, cytoplasmic localization, the plant co-receptor BAK1, and the signalling components SGT1 and HSP90. The active region of Te16-induced cell death is located at amino acids 114-293. Moreover, silencing Te16 gene in T. evansi reduces spider mite survival and hatchability, but expressing Te16 in N. benthamiana leaves enhances plant resistance to herbivores. Finally, Te16 gene is specific to Tetranychidae species and is highly conserved in activating plant immunity. Our findings reveal a novel salivary protein produced by spider mites that elicits plant defence and resistance to insects, providing valuable clues for pest management.
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Affiliation(s)
- Jia-Rong Cui
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Bin Zhou
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yi-Jing Tang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Jia-Yi Zhou
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Lu Ren
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Fan Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ary A Hoffmann
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Xiao-Yue Hong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
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Xia MH, Pan D, Li CZ, Li YC, Dou W, Wang JJ. Sublethal and transgenerational effects of lufenuron on the biological traits of Panonychus citri (McGregor) (Acari: Tetranychidae). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 198:105727. [PMID: 38225066 DOI: 10.1016/j.pestbp.2023.105727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 01/17/2024]
Abstract
The citrus red mite, Panonychus citri (McGregor), is a globally important pest that has developed severe resistance to various pesticides. Lufenuron has been widely used in the control of the related pests in citrus orchard ecosystem. In this study, the susceptibilities of egg, larva, deutonymph and female adult of P. citri to lufenuron was determined, and the LC50 values were 161.354 mg/L, 49.595 mg/L, 81.580 mg/L, and 147.006 mg/L, respectively. Life-table analysis indicated that the fecundities were significantly increased by 11.86% and 26.84% after the mites were treated with LC20 concentrations of lufenuron at the egg or deutonymph stages, respectively. After eggs were treated with lufenuron, the immature stage and longevity were also affected, and resulted in a significant increase in r, R0 and λ. After exposure of female adults to LC20 of lufenuron, the fecundity and longevity of F0 generation significantly decreased by 31.99% and 10.94%, respectively. Furthermore, the expression level of EcR and Vg was significantly inhibited upon mites was treated with lufenuron. However, lufenuron exposure has a positive effect on fecundity and R0 in F1 generation, the expression of all reproduction-related genes was significantly up-regulated. In conclusion, there was a stimulating effect on the offspring population. Our results will contribute to the assessment of the resurgence of P. citri in the field after the application of lufenuron and the development of integrated pest control strategies in citrus orchards.
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Affiliation(s)
- Meng-Hao Xia
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Deng Pan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China.
| | - Chuan-Zhen Li
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Yu-Chuang Li
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China.
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China.
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Wang Q, Wang X, Huang L, Cheng Y, Ren L, Yang H, Zhou C, Wang X, He J. Promoter characterization of a citrus linalool synthase gene mediating interspecific variation in resistance to a bacterial pathogen. BMC PLANT BIOLOGY 2023; 23:405. [PMID: 37620808 PMCID: PMC10463377 DOI: 10.1186/s12870-023-04413-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Terpenoids play essential roles in plant defense against biotic stresses. In Citrus species, the monoterpene linalool mediates resistance against citrus canker disease caused by the gram-negative bacteria Xanthomonas citri subsp. citri (Xcc). Previous work had associated linalool contents with resistance; here we characterize transcriptional responses of linalool synthase genes. RESULTS Leaf linalool contents are highly variable among different Citrus species. "Dongfang" tangerine (Citrus reticulata), a species with high linalool levels was more resistant to Xcc than "Shatian" pummelo (C. grandis) which accumulates only small amounts of linalool. The coding sequences of the major leaf-expressed linalool synthase gene (STS4) are highly conserved, while transcript levels differ between the two Citrus species. To understand this apparent differential transcription, we isolated the promoters of STS4 from the two species, fused them to a GUS reporter and expressed them in Arabidopsis. This reporter system revealed that the two promoters have different constitutive activities, mainly in trichomes. Interestingly, both linalool contents and STS4 transcript levels are insensitive to Xcc infestation in citrus plants, but in these transgenic Arabidopsis plants, the promoters are activated by challenge of a bacterial pathogen Pseudomonas syringae, as well as wounding and external jasmonic acid treatment. CONCLUSIONS Our study reveals variation in linalool and resistance to Xcc in citrus plants, which may be mediated by different promoter activities of a terpene synthase gene in different Citrus species.
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Affiliation(s)
- Qiying Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Xiaochun Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Linhua Huang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Yujiao Cheng
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Li Ren
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Huayu Yang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Changyong Zhou
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Xuefeng Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China.
| | - Jun He
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China.
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Lee M, Wang L, Yue GH. Transcriptomic Responses of Salvia hispanica to the Infestation of Red Spider Mites ( Tetranychus neocaledonicus). Int J Mol Sci 2023; 24:12261. [PMID: 37569636 PMCID: PMC10418447 DOI: 10.3390/ijms241512261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Salvia hispanica (chia) is a highly nutritious food source and has gained popularity due to its high omega-3 fatty acid content. Red spider mites are a serious problem in the production of S. hispanica. However, no study has been conducted to analyze the defensive response to the infestation of red spider mites in S. hispanica. To elucidate the molecular mechanisms of the defensive response of S. hispanica to red spider mites, we performed a transcriptomic analysis of S. hispanica when infested by red spider mites. In the comparative assessment of leaf transcriptomes, a total of 1743 differentially expressed genes (DEGs) were identified between control and mite-infested S. hispanica. From these, 1208 (69%) transcripts were upregulated and 535 (31%) were downregulated. The DEGs included transcription factors, defense hormones, and secondary metabolites that were either suppressed or activated in response to spider mite herbivory. Gene Ontology (GO) enrichment analysis revealed that plant secondary metabolites, such as glucosinolates, and signaling pathways, including the jasmonic acid signaling pathway, may play an important role in the defense against red spider mites. This study provides novel insights into the defense response of S. hispanica to insect herbivory and could be a resource for the improvement of pest resistance in the chia.
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Affiliation(s)
- May Lee
- Temasek Life Sciences Laboratory, National University of Singapore, 1 Research Link, Singapore 117604, Singapore (L.W.)
| | - Le Wang
- Temasek Life Sciences Laboratory, National University of Singapore, 1 Research Link, Singapore 117604, Singapore (L.W.)
| | - Gen Hua Yue
- Temasek Life Sciences Laboratory, National University of Singapore, 1 Research Link, Singapore 117604, Singapore (L.W.)
- Department of Biological Sciences, National University of Singapore, 14 Science Drive, Singapore 117543, Singapore
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Kutty NN, Mishra M. Dynamic distress calls: volatile info chemicals induce and regulate defense responses during herbivory. FRONTIERS IN PLANT SCIENCE 2023; 14:1135000. [PMID: 37416879 PMCID: PMC10322200 DOI: 10.3389/fpls.2023.1135000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 05/10/2023] [Indexed: 07/08/2023]
Abstract
Plants are continuously threatened by a plethora of biotic stresses caused by microbes, pathogens, and pests, which often act as the major constraint in crop productivity. To overcome such attacks, plants have evolved with an array of constitutive and induced defense mechanisms- morphological, biochemical, and molecular. Volatile organic compounds (VOCs) are a class of specialized metabolites that are naturally emitted by plants and play an important role in plant communication and signaling. During herbivory and mechanical damage, plants also emit an exclusive blend of volatiles often referred to as herbivore-induced plant volatiles (HIPVs). The composition of this unique aroma bouquet is dependent upon the plant species, developmental stage, environment, and herbivore species. HIPVs emitted from infested and non-infested plant parts can prime plant defense responses by various mechanisms such as redox, systemic and jasmonate signaling, activation of mitogen-activated protein (MAP) kinases, and transcription factors; mediate histone modifications; and can also modulate the interactions with natural enemies via direct and indirect mechanisms. These specific volatile cues mediate allelopathic interactions leading to altered transcription of defense-related genes, viz., proteinase inhibitors, amylase inhibitors in neighboring plants, and enhanced levels of defense-related secondary metabolites like terpenoids and phenolic compounds. These factors act as deterrents to feeding insects, attract parasitoids, and provoke behavioral changes in plants and their neighboring species. This review presents an overview of the plasticity identified in HIPVs and their role as regulators of plant defense in Solanaceous plants. The selective emission of green leaf volatiles (GLVs) including hexanal and its derivatives, terpenes, methyl salicylate, and methyl jasmonate (MeJa) inducing direct and indirect defense responses during an attack from phloem-sucking and leaf-chewing pests is discussed. Furthermore, we also focus on the recent developments in the field of metabolic engineering focused on modulation of the volatile bouquet to improve plant defenses.
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Meijer D, van der Vleut J, Weldegergis BT, Costaz T, Duarte MVA, Pekas A, van Loon JJA, Dicke M. Effects of far-red light on tritrophic interactions between the two-spotted spider mite (Tetranychus urticae) and the predatory mite Phytoseiulus persimilis on tomato. PEST MANAGEMENT SCIENCE 2023; 79:1820-1828. [PMID: 36641545 DOI: 10.1002/ps.7358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/09/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND The use of light-emitting diode (LED) lights in horticulture allows growers to adjust the light spectrum to optimize crop production and quality. However, changes in light quality can also influence plant-arthropod interactions, with possible consequences for pest management. The addition of far-red light has been shown to interfere with plant immunity, thereby increasing plant susceptibility to biotic stress and increasing pest performance. Far-red light also influences plant emission of volatile organic compounds (VOCs) and might thus influence tritrophic interactions with biological control agents. We investigated how far-red light influences the VOC-mediated attraction of the predatory mite Phytoseiulus persimilis to tomato plants infested with Tetranychus urticae, and its ability to control T. urticae populations. RESULTS Far-red light significantly influences herbivore-induced VOC emissions of tomato plants, characterized by a change in relative abundance of terpenoids, but this did not influence the attraction of P. persimilis to herbivore-induced plants. Supplemental far-red light led to an increased population growth of T. urticae and increased numbers of P. persimilis. This resulted in a stronger suppression of T. urticae populations under supplemental far-red light, to similar T. urticae numbers as in control conditions without supplemental far-red light. CONCLUSION We conclude that supplemental far-red light can change herbivore-induced VOC emissions but does not interfere with the attraction of the predator P. persimilis. Moreover, far-red light stimulates biological control of spider mites in glasshouse tomatoes due to increased population build-up of the biocontrol agent. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Davy Meijer
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
| | - Jaimie van der Vleut
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
- Biobest Group N.V., R&D Department, Westerlo, Belgium
| | | | - Thibault Costaz
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
| | | | | | - Joop J A van Loon
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
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Lemos F, Bajda S, Duarte MVA, Alba JM, Van Leeuwen T, Pallini A, Sabelis MW, Janssen A. Imperfect diet choice reduces the performance of a predatory mite. Oecologia 2023; 201:929-939. [PMID: 36947271 PMCID: PMC10113300 DOI: 10.1007/s00442-023-05359-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 03/08/2023] [Indexed: 03/23/2023]
Abstract
Two mutually unexclusive hypotheses prevail in the theory of nutritional ecology: the balanced diet hypothesis states that consumers feed on different food items because they have complementary nutrient and energy compositions. The toxin-dilution hypothesis poses that consumers feed on different food items to dilute the toxins present in each. Both predict that consumers should not feed on low-quality food when ample high-quality food forming a complete diet is present. We investigated the diet choice of Phytoseiulus persimilis, a predatory mite of web-producing spider mites. It can develop and reproduce on single prey species, for example the spider mite Tetranychus urticae. A closely related prey, T. evansi, is of notorious bad quality for P. persimilis and other predator species. We show that juvenile predators feeding on this prey have low survival and do not develop into adults. Adults stop reproducing and have increased mortality when feeding on it. Feeding on a mixed diet of the two prey decreases predator performance, but short-term effects of feeding on the low-quality prey can be partially reversed by subsequently feeding on the high-quality prey. Yet, predators consume low-quality prey in the presence of high-quality prey, which is in disagreement with both hypotheses. We suggest that it is perhaps not the instantaneous reproduction on single prey or mixtures of prey that matters for the fitness of predators, but that it is the overall reproduction by a female and her offspring on an ephemeral prey patch, which may be increased by including inferior prey in their diet.
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Affiliation(s)
- Felipe Lemos
- Department of Evolutionary and Population Ecology, IBED, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
- Laboratory of Acarology, Department of Entomology, Federal University of Viçosa, 36, Viçosa, MG, 570-000, Brazil
- Ecofit- Bioinsumos, Araxá, MG, Brazil
| | - Sabina Bajda
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Marcus V A Duarte
- Department of Evolutionary and Population Ecology, IBED, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
- Laboratory of Acarology, Department of Entomology, Federal University of Viçosa, 36, Viçosa, MG, 570-000, Brazil
- R&D Department, Biobest Group NV, Westerlo, Belgium
| | - Juan M Alba
- Department of Evolutionary and Population Ecology, IBED, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Thomas Van Leeuwen
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Angelo Pallini
- Laboratory of Acarology, Department of Entomology, Federal University of Viçosa, 36, Viçosa, MG, 570-000, Brazil
| | - Maurice W Sabelis
- Department of Evolutionary and Population Ecology, IBED, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Arne Janssen
- Department of Evolutionary and Population Ecology, IBED, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands.
- Laboratory of Acarology, Department of Entomology, Federal University of Viçosa, 36, Viçosa, MG, 570-000, Brazil.
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11
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Watts S, Kaur S, Kariyat R. Revisiting plant defense-fitness trade-off hypotheses using Solanum as a model genus. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2022.1094961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Plants possess physical and chemical defenses which have been found to deter herbivores that feed and oviposit on them. Despite having wide variety of defenses which can be constitutive or induced, plants are attacked and damaged by insects associated with different mouthparts and feeding habits. Since these defenses are costly, trade-offs for growth and defense traits play an important role in warding off the herbivores, with consequences for plant and herbivore growth, development and fitness. Solanum is a diverse and rich genus comprising of over 1,500 species with economic and ecological importance. Although a large number of studies on Solanum species with different herbivores have been carried out to understand plant defenses and herbivore counter defenses, they have primarily focused on pairwise interactions, and a few species of economic and ecological importance. Therefore, a detailed and updated understanding of the integrated defense system (sum of total defenses and trade-offs) is still lacking. Through this review, we take a closer look at the most common plant defense hypotheses, their assumptions and trade-offs and also a comprehensive evaluation of studies that use the genus Solanum as their host plant, and their generalist and specialist herbivores from different feeding guilds. Overall, review emphasizes on using ubiquitous Solanum genus and working toward building an integrated model which can predict defense-fitness-trade-offs in various systems with maximum accuracy and minimum deviations from realistic results.
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12
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Foba CN, Shi JH, An QQ, Liu L, Hu XJ, Hegab MAMS, Liu H, Zhao PM, Wang MQ. Volatile-mediated tritrophic defense and priming in neighboring maize against Ostrinia furnacalis and Mythimna separata. PEST MANAGEMENT SCIENCE 2023; 79:105-113. [PMID: 36088646 DOI: 10.1002/ps.7178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/19/2022] [Accepted: 09/11/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Plants respond to attackers by triggering phytohormones signaling associated metabolites, including herbivore-induced plant volatiles (HIPVs). HIPVs can indirectly act against herbivory by recruitment of natural enemies and priming of neighboring plants. Ostrinia furnacalis and Mythimna separata are important insect herbivores of maize plants that have a devastating influence on yield. However, little is known about how maize temporally reconfigures its defense systems against these herbivores and variation of neighboring plant resistance. RESULTS This study investigated the effects of HIPVs on the behavior of the dominant predatory beetle Harmonia axyridis and priming in neighboring maize defense against O. furnacalis and M. separata over time. The results showed that maize damaged by either O. furnacalis or M. separata enhanced the release of volatiles including terpenes, aldehydes, alkanes and an ester, which elicited an increased attractive response to H. axyridis after 3 and 12 h, respectively. O. furnacalis damage resulted in accumulations of leaf jasmonic acid (JA) and salicylic acid in maize after 6 and 3 h, respectively, while M. separata damage only raised the JA level after 3 h. Furthermore, HIPVs were able to prime neighboring plants through the accumulation of JA after 24 h. Both larvae showed a significant decrease in weight accumulation after 48 h of feeding on the third leaves of the primed plant. CONCLUSION Taken together, the findings provide a dynamic overview of how attacked maize reconfigures its volatiles and phytohormones to defend against herbivores, as well as priming of neighboring plants against oncoming attacks. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Caroline Ngichop Foba
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
- Lincoln University, College of Agriculture, Environmental and Human Sciences, Cooperative Extension, 65101, Jefferson City, MO, USA
| | - Jin-Hua Shi
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
| | - Qing-Qing An
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
| | - Le Liu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
| | - Xin-Jun Hu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
| | - Mahmoud Ali Morse Soliman Hegab
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
- Department of Entomology, Faculty of Agriculture, Damietta University, Damietta, Damietta El-Gadeeda City, Kafr Saad, Damietta Governorate, 34511, Egypt
| | - Hao Liu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
| | - Pei-Min Zhao
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
| | - Man-Qun Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei Province, P. R. China
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13
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Karalija E, Šamec D, Dahija S, Ibragić S. Plants strike back: Plant volatiles and their role in indirect defence against aphids. PHYSIOLOGIA PLANTARUM 2023; 175:e13850. [PMID: 36628570 DOI: 10.1111/ppl.13850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/12/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
As sessile organisms, plants have evolved different strategies to defend themselves against various biotic stressors. An important aspect of the complex response of plants to biotic stress is the emission of volatile compounds (VOCs), which are involved in direct and indirect plant defence mechanisms. Indirect plant defences include a range of plant traits that mediate defence against herbivores and play an important ecological role by not only utilising plants' own capabilities, but also signalling and attracting natural enemies of herbivores. Often the combination of volatiles emitted is specific to herbivores; they are consequently recognised by parasites and other predators, providing a clear link between the volatile signature and the prey. In this review, we focus on indirect plant defence and summarise current knowledge and perspectives on relationships between plants, aphids and parasitic wasps.
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Affiliation(s)
- Erna Karalija
- Laboratory for Plant Physiology, Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Dunja Šamec
- Department of Food Technology, University North, Koprivnica, Croatia
| | - Sabina Dahija
- Laboratory for Plant Physiology, Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Saida Ibragić
- Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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14
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Zhan C, Lei L, Guo H, Zhou S, Xu C, Liu Z, Wu Z, Deng Y, Miao Y, Han Y, Zhang M, Li H, Huang S, Yang C, Zhang F, Li Y, Liu L, Liu X, Abbas HMK, Fernie AR, Yuan M, Luo J. Disease resistance conferred by components of essential chrysanthemum oil and the epigenetic regulation of OsTPS1. SCIENCE CHINA LIFE SCIENCES 2022; 66:1108-1118. [PMID: 36462108 DOI: 10.1007/s11427-022-2241-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/10/2022] [Indexed: 12/04/2022]
Abstract
The sesquiterpene alpha-bisabolol is the predominant active ingredient in essential oils that are highly valued in the cosmetics industry due to its wound healing, anti-inflammatory, and skin-soothing properties. Alpha-bisabolol was thought to be restricted to Compositae plants. Here we reveal that alpha-bisabolol is also synthesized in rice, a non-Compositae plant, where it acts as a novel sesquiterpene phytoalexin. Overexpressing the gene responsible for the biosynthesis of alpha-bisabolol, OsTPS1, conferred bacterial blight resistance in rice. Phylogenomic analyses revealed that alpha-bisabolol-synthesizing enzymes in rice and Compositae evolved independently. Further experiments demonstrated that the natural variation in the disease resistance level was associated with differential transcription of OsTPS1 due to polymorphisms in its promoter. We demonstrated that OsTPS1 was regulated at the epigenetic level by JMJ705 through the methyl jasmonate pathway. These data reveal the cross-family accumulation and regulatory mechanisms of alpha-bisabolol production.
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15
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The scale of competition impacts parasite virulence evolution. Evol Ecol 2022. [DOI: 10.1007/s10682-022-10199-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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van Dijk LJA, Regazzoni EDE, Albrectsen BR, Ehrlén J, Abdelfattah A, Stenlund H, Pawlowski K, Tack AJM. Single, but not dual, attack by a biotrophic pathogen and a sap-sucking insect affects the oak leaf metabolome. FRONTIERS IN PLANT SCIENCE 2022; 13:897186. [PMID: 35991442 PMCID: PMC9381920 DOI: 10.3389/fpls.2022.897186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Plants interact with a multitude of microorganisms and insects, both below- and above ground, which might influence plant metabolism. Despite this, we lack knowledge of the impact of natural soil communities and multiple aboveground attackers on the metabolic responses of plants, and whether plant metabolic responses to single attack can predict responses to dual attack. We used untargeted metabolic fingerprinting (gas chromatography-mass spectrometry, GC-MS) on leaves of the pedunculate oak, Quercus robur, to assess the metabolic response to different soil microbiomes and aboveground single and dual attack by oak powdery mildew (Erysiphe alphitoides) and the common oak aphid (Tuberculatus annulatus). Distinct soil microbiomes were not associated with differences in the metabolic profile of oak seedling leaves. Single attacks by aphids or mildew had pronounced but different effects on the oak leaf metabolome, but we detected no difference between the metabolomes of healthy seedlings and seedlings attacked by both aphids and powdery mildew. Our findings show that aboveground attackers can have species-specific and non-additive effects on the leaf metabolome of oak. The lack of a metabolic signature detected by GC-MS upon dual attack might suggest the existence of a potential negative feedback, and highlights the importance of considering the impacts of multiple attackers to gain mechanistic insights into the ecology and evolution of species interactions and the structure of plant-associated communities, as well as for the development of sustainable strategies to control agricultural pests and diseases and plant breeding.
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Affiliation(s)
- Laura J. A. van Dijk
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Emilia D. E. Regazzoni
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | | | - Johan Ehrlén
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Ahmed Abdelfattah
- Institute of Environmental Biotechnology, Graz University of Technology, Graz, Austria
| | - Hans Stenlund
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå, Sweden
| | - Katharina Pawlowski
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Ayco J. M. Tack
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
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17
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Godinho DP, Serrano HC, Magalhães S, Branquinho C. Concurrent herbivory and metal accumulation: The outcome for plants and herbivores. PLANT-ENVIRONMENT INTERACTIONS (HOBOKEN, N.J.) 2022; 3:170-178. [PMID: 37283609 PMCID: PMC10168039 DOI: 10.1002/pei3.10088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 08/02/2022] [Accepted: 08/07/2022] [Indexed: 06/08/2023]
Abstract
The effects of metals on plants and herbivores, as well as the interaction among the latter, are well documented. However, the effects of simultaneous herbivory and metal accumulation remain poorly studied. Here, we shed light on this topic by infesting cadmium-accumulating tomato plants (Solanum lycopersicum), either exposed to cadmium or not, with herbivorous spider mites, Tetranychus urticae or T. evansi during 14 days. Whereas on plants without cadmium T. evansi had higher growth rate than T. urticae, on plants with cadmium both mite species had similar growth rates, which were lower than on plants without metal. Plants were affected by both cadmium toxicity and by herbivory, as shown by leaf reflectance, but not on the same wavelengths. Moreover, changes in leaf reflectance on the wavelength affected by herbivores were similar on plants with and without cadmium, and vice versa. Long-term effects of cadmium and herbivory did not affect H2O2 concentrations in the plant. Finally, plants infested with spider mites did not accumulate more cadmium, suggesting that metal accumulation is not induced by herbivory. We thus conclude that cadmium accumulation affects two congeneric herbivore species differently and that the effects of herbivory and cadmium toxicity on plants may be disentangled, via leaf reflectance, even during simultaneous exposure.
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Affiliation(s)
- Diogo P. Godinho
- Centre for Ecology, Evolution and Environmental Changes (cE3c)Faculdade de Ciências da Universidade de LisboaLisbonPortugal
| | - Helena C. Serrano
- Centre for Ecology, Evolution and Environmental Changes (cE3c)Faculdade de Ciências da Universidade de LisboaLisbonPortugal
| | - Sara Magalhães
- Centre for Ecology, Evolution and Environmental Changes (cE3c)Faculdade de Ciências da Universidade de LisboaLisbonPortugal
- Departamento de Biologia AnimalFaculdade de Ciências da Universidade de LisboaLisbonPortugal
| | - Cristina Branquinho
- Centre for Ecology, Evolution and Environmental Changes (cE3c)Faculdade de Ciências da Universidade de LisboaLisbonPortugal
- Departamento de Biologia VegetalFaculdade de Ciências da Universidade de LisboaLisbonPortugal
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18
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Bazinet Q, Tang L, Bede JC. Impact of Future Elevated Carbon Dioxide on C 3 Plant Resistance to Biotic Stresses. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2022; 35:527-539. [PMID: 34889654 DOI: 10.1094/mpmi-07-21-0189-fi] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Before the end of the century, atmospheric carbon dioxide levels are predicted to increase to approximately 900 ppm. This will dramatically affect plant physiology and influence environmental interactions and, in particular, plant resistance to biotic stresses. This review is a broad survey of the current research on the effects of elevated CO2 (eCO2) on phytohormone-mediated resistance of C3 agricultural crops and related model species to pathogens and insect herbivores. In general, while plants grown in eCO2 often have increased constitutive and induced salicylic acid levels and suppressed induced jasmonate levels, there are exceptions that implicate other environmental factors, such as light and nitrogen fertilization in modulating these responses. Therefore, this review sets the stage for future studies to delve into understanding the mechanistic basis behind how eCO2 will affect plant defensive phytohormone signaling pathways under future predicted environmental conditions that could threaten global food security to inform the best agricultural management practices.[Formula: see text] Copyright © 2022 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Quinn Bazinet
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada
| | - Lawrence Tang
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada
| | - Jacqueline C Bede
- Department of Plant Science, McGill University, 21,111 Lakeshore, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada
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19
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Njiru C, Xue W, De Rouck S, Alba JM, Kant MR, Chruszcz M, Vanholme B, Dermauw W, Wybouw N, Van Leeuwen T. Intradiol ring cleavage dioxygenases from herbivorous spider mites as a new detoxification enzyme family in animals. BMC Biol 2022; 20:131. [PMID: 35658860 PMCID: PMC9167512 DOI: 10.1186/s12915-022-01323-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/09/2022] [Indexed: 12/13/2022] Open
Abstract
Background Generalist herbivores such as the two-spotted spider mite Tetranychus urticae thrive on a wide variety of plants and can rapidly adapt to novel hosts. What traits enable polyphagous herbivores to cope with the diversity of secondary metabolites in their variable plant diet is unclear. Genome sequencing of T. urticae revealed the presence of 17 genes that code for secreted proteins with strong homology to “intradiol ring cleavage dioxygenases (DOGs)” from bacteria and fungi, and phylogenetic analyses show that they have been acquired by horizontal gene transfer from fungi. In bacteria and fungi, DOGs have been well characterized and cleave aromatic rings in catecholic compounds between adjacent hydroxyl groups. Such compounds are found in high amounts in solanaceous plants like tomato, where they protect against herbivory. To better understand the role of this gene family in spider mites, we used a multi-disciplinary approach to functionally characterize the various T. urticae DOG genes. Results We confirmed that DOG genes were present in the T. urticae genome and performed a phylogenetic reconstruction using transcriptomic and genomic data to advance our understanding of the evolutionary history of spider mite DOG genes. We found that DOG expression differed between mites from different plant hosts and was induced in response to jasmonic acid defense signaling. In consonance with a presumed role in detoxification, expression was localized in the mite’s gut region. Silencing selected DOGs expression by dsRNA injection reduced the mites’ survival rate on tomato, further supporting a role in mitigating the plant defense response. Recombinant purified DOGs displayed a broad substrate promiscuity, cleaving a surprisingly wide array of aromatic plant metabolites, greatly exceeding the metabolic capacity of previously characterized microbial DOGs. Conclusion Our findings suggest that the laterally acquired spider mite DOGs function as detoxification enzymes in the gut, disarming plant metabolites before they reach toxic levels. We provide experimental evidence to support the hypothesis that this proliferated gene family in T. urticae is causally linked to its ability to feed on an extremely wide range of host plants. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01323-1.
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20
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Mira AF, Marques L, Magalhães S, Rodrigues LR. A Method to Measure the Damage Caused by Cell-Sucking Herbivores. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2494:299-312. [PMID: 35467216 DOI: 10.1007/978-1-0716-2297-1_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The damage that herbivores inflict on plants is a key component of their interaction. Several methods have been proposed to quantify the damage caused by chewing insects, but such methods are not very successful when the damage is inflicted by a cell-sucking organism. Here, we present a protocol that allows a non-destructive quantification of the damage inflicted by cell-sucking arthropods, robustly filtering out leaf vascular structures that might be mistakenly classified as damage in many plant species. The protocol is set for the laboratory environment and uses Fiji and ilastik, two free software packages.
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Affiliation(s)
- André F Mira
- Centre for Ecology, Evolution and Environmental Changes, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Luís Marques
- Centre for Ecology, Evolution and Environmental Changes, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.,Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Sara Magalhães
- Centre for Ecology, Evolution and Environmental Changes, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Leonor R Rodrigues
- Centre for Ecology, Evolution and Environmental Changes, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
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21
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Mishra DK, Srivastava R, Pandey BK, Verma PC, Sawant SV. Identification and validation of the wound and insect bite early inducible promoter from Arabidopsis thaliana. 3 Biotech 2022; 12:74. [PMID: 35251877 PMCID: PMC8861216 DOI: 10.1007/s13205-022-03143-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/07/2022] [Indexed: 11/01/2022] Open
Abstract
A wound-inducible promoter facilitates the regulated gene expression at the targeted site during the time of mechanical stress or infestation by the pathogen. The present work has aimed to identify a wound-inducible promoter that expresses at early time points preceding wound-stress treatment in Arabidopsis thaliana. The computational analysis of microarray data (GSE5627) resulted in the identification of five early inducible genes, viz., AT1G17380, AT1G80440, AT2G43530, AT3G48360, and AT5G13220. The RT-PCR analysis showed AT5G13220 (JASMONATE-ASSOCIATED 1) gene induced at a significantly higher level post 30 min of wounding. Thus, the promoter of the highly induced and early expressed wound-inducible gene, AT5G13220 (named PW220), was characterized by fusing with β-glucuronidase (gusA) reporter or Cry1EC genes. The fluorometric analysis and histochemical staining of the gusA gene and quantitative estimation of Cry1EC protein in Nicotiana tabacum transgenic lines confirmed wound-induced expression characteristic of the selected promoter. Insect bioassay suggested that wound-inducible and constitutive expression of Cry1EC protein in transgenic lines showed a similar level of protection against different instar Spodoptera litura larvae. Furthermore, we identified that abscisic acid influenced the wound-specific expression of the selected PW220 promoter in the transgenic lines, which correlates with the presence of conserved cis-regulatory elements associated with dehydration and abscisic acid responses. Altogether, our results suggested that the wound-inducible promoter PW220 provides an excellent alternative for developing insect-tolerant transgenic crops in the future. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-022-03143-0.
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Affiliation(s)
- Devesh Kumar Mishra
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India ,Present Address: Department of Botany. School of Applied Sciences, Om Sterling Global University, Hisar, Haryana 125001 India
| | - Rakesh Srivastava
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India
| | - Bhoopendra K. Pandey
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India
| | - Praveen Chandra Verma
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India
| | - Samir Vishwanath Sawant
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India
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22
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He J, Verstappen F, Jiao A, Dicke M, Bouwmeester HJ, Kappers IF. Terpene synthases in cucumber (Cucumis sativus) and their contribution to herbivore-induced volatile terpenoid emission. THE NEW PHYTOLOGIST 2022; 233:862-877. [PMID: 34668204 PMCID: PMC9299122 DOI: 10.1111/nph.17814] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/12/2021] [Indexed: 05/10/2023]
Abstract
Terpenoids play important roles in flavour, pollinator attraction and defence of plants. In cucumber (Cucumis sativus) they are important components of the herbivore-induced plant volatile blend that attracts natural enemies of herbivores. We annotated the cucumber TERPENE SYNTHASE gene (CsTPS) family and characterized their involvement in the response towards herbivores with different feeding guilds using a combined molecular and biochemical approach. Transcripts of multiple CsTPS genes were upregulated in leaves upon herbivory and the products generated by the expressed proteins match the terpenoids recorded in the volatile blend released by herbivore-damaged leaves. Spatial and temporal analysis of the promoter activity of CsTPS genes showed that cell content-feeding spider mites (Tetranychus urticae) and thrips (Frankliniella occidentalis) induced promoter activity of CsTPS9 and CsTPS19 within hours after initiation of infestation, while phloem-feeding aphids (Myzus persicae) induced CsTPS2 promoter activity. Our findings offer detailed insights into the involvement of the TPS gene family in the dynamics and fine-tuning of the emission of herbivore-induced plant volatiles in cucumber, and open a new avenue to understand molecular mechanisms that affect plant-herbivore interactions.
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Affiliation(s)
- Jun He
- Laboratory of Plant PhysiologyPlant Sciences GroupWageningen University & Research6700AAWageningenthe Netherlands
- Citrus Research InstituteSouthwest University400712ChongqingChina
| | - Francel Verstappen
- Laboratory of Plant PhysiologyPlant Sciences GroupWageningen University & Research6700AAWageningenthe Netherlands
| | - Ao Jiao
- Laboratory of Plant PhysiologyPlant Sciences GroupWageningen University & Research6700AAWageningenthe Netherlands
| | - Marcel Dicke
- Laboratory of EntomologyPlant Sciences GroupWageningen University & Research6700AAWageningenthe Netherlands
| | - Harro J. Bouwmeester
- Laboratory of Plant PhysiologyPlant Sciences GroupWageningen University & Research6700AAWageningenthe Netherlands
- Plant Hormone Biology GroupSwammerdam Institute for Life SciencesUniversity of Amsterdam1000BEAmsterdamthe Netherlands
| | - Iris F. Kappers
- Laboratory of Plant PhysiologyPlant Sciences GroupWageningen University & Research6700AAWageningenthe Netherlands
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Development of Portable E-Nose System for Fast Diagnosis of Whitefly Infestation in Tomato Plant in Greenhouse. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9110297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An electronic nose (E-nose) system equipped with a gas sensor array and real-time control panel was developed for a fast diagnosis of whitefly infestation in tomato plants. Profile changes of volatile organic compounds (VOCs) released from tomato plants under different treatments (i.e., whitefly infestation, mechanical damage, and no treatment) were successfully determined by the developed E-nose system. A rapid sensor response with high sensitivity towards whitefly-infested tomato plants was observed in the E-nose system. Results of principal component analysis (PCA) and hierarchical clustering analysis (HCA) indicated that the E-nose system was able to provide accurate distinguishment between whitefly-infested plants and healthy plants, with the first three principal components (PCs) accounting for 87.4% of the classification. To reveal the mechanism of whitefly infestation in tomato plants, VOC profiles of whitefly-infested plants and mechanically damaged plants were investigated by using the E-nose system and GC-MS. VOCs of 2-nonanol, oxime-, methoxy-phenyl, and n-hexadecanoic acid were only detected in whitefly-infested plants, while compounds of dodecane and 4,6-dimethyl were only found in mechanically damaged plant samples. Those unique VOC profiles of different tomato plant groups could be considered as bio-markers for diagnosing different damages. Moreover, the E-nose system was demonstrated to have the capability to differentiate whitefly-infested plants and mechanically damaged plants. The relationship between sensor performance and VOC profiles confirmed that the developed E-nose system could be used as a fast and smart device to detect whitefly infestation in greenhouse cultivation.
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Resistance of Common Bean Genotypes to the Broad Mite, Polyphagotarsonemus latus (Banks, 1904) (Acari: Tarsonemidae): Offspring Development and Biochemical Basis. INSECTS 2021; 12:insects12100910. [PMID: 34680680 PMCID: PMC8540688 DOI: 10.3390/insects12100910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/18/2021] [Accepted: 09/23/2021] [Indexed: 11/24/2022]
Abstract
Simple Summary The broad mite is a prominent pest, and its management is difficult due to its fast life cycle and farmers’ difficulty in detecting it before the damage is caused. Thus, the use of resistant plants is critical for an integrated pest management program for this mite species. Experiments were conducted to search for common bean varieties with resistance against the broad mite. With our findings, selected genotypes could be used for an integrated pest management program. Carioca Original, one of the most-used varieties in Brazil, had a lower yield, despite low numbers of broad mites. Broad mite populations did not jeopardize the yield of the Verdão and Negrão 11 varieties. Abstract The broad mite (BM) Polyphagotarsonemus latus is a pest of great prominence for several crops, including the common bean (Phaseolus vulgaris). The objective of this study was to select resistant genotypes and to determine chemicals associated with resistance. In the first experiment, BM incidence was assessed for 36 genotypes in a greenhouse study. A group of 10 genotypes was selected according to the development of BM populations. Mite populations and phytometric and biochemical variables were then determined to study eventual differential genotypic responses to mite infestation. Lower numbers of mite mobile forms (larvae + adults) were found on Verdão, Negrão and Carioca Original genotypes. The magnitude of differences reached 5.4 times more BM in the IAC Alvorada than the Verdão genotype. Plant yields were reduced for the genotypes TAA Bola Cheia, IPR Sabiá, IPR Uirapuru, IAC Alvorada and Carioca Original when plants were infested with BM. The yields for LP 13833, BRS Esteio, Negrão 11, Verdão and MD 1133 were similar between infested and non-infested genotypes, indicating tolerance. Verdão and Negrão 11, besides the tolerance, exhibited low offspring development, indicating antibiosis and/or antixenosis. Higher phenolic compound levels were found in the Verdão genotype. Increased contents of catalase and peroxidase were detected for Negrão 11 genotype when infested with BM. This work allowed the detection of common bean genotypes that express resistance and tolerance to BM. These genotypes can be used in places with a history of BM infestation, or used in breeding programs to incorporate these characteristics in other genotypes.
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Silva DB, Jiménez A, Urbaneja A, Pérez-Hedo M, Bento JM. Changes in plant responses induced by an arthropod influence the colonization behavior of a subsequent herbivore. PEST MANAGEMENT SCIENCE 2021; 77:4168-4180. [PMID: 33938117 DOI: 10.1002/ps.6454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 04/12/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Plants in nature can be sequentially attacked by different arthropod herbivores. Feeding by one arthropod species may induce plant-defense responses that might affect the performance of a later-arriving herbivorous species. Understanding these interactions can help in developing pest-management strategies. In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests that frequently cohabit on the same plant. We studied whether colonization by one species can either facilitate or impede later colonization of tomato plants by conspecific or heterospecific individuals. RESULTS B. tabaci females showed a strong preference for and increased oviposition on plants previously colonized by conspecifics. In contrast, plants infested with T. urticae repelled B. tabaci females and reduced their oviposition rate by 86%. Although females of T. urticae showed no preference between conspecific-infested or uninfested plants, we observed a 50% reduction in the number of eggs laid on conspecific-infested plants. Both herbivorous arthropods up-regulated the expression of genes involving the jasmonic acid and abscisic acid pathways, increasing emissions of fatty-acid derivatives, but only B. tabaci increased the expression of genes related to the salicylic acid pathway and the total amount of phenylpropanoids released. Terpenoids were the most abundant compounds in the volatile blends; many terpenoids were emitted at different rates, which might have influenced the arthropods' host selection. CONCLUSION Our results indicate that B. tabaci infestation facilitated subsequent infestations by conspecifics and mites, while T. urticae infestation promoted herbivore-induced resistance. Based on both the molecular and behavioral findings, a novel sustainable pest-management strategy is discussed.
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Affiliation(s)
- Diego B Silva
- Department of Entomology and Acarology, Luis de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
- Instituto Valenciano de Investigaciones Agrarias, Centro de Protección Vegetal y Biotecnología, Valencia, Spain
| | - Alejandro Jiménez
- Department of Entomology and Acarology, Luis de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
- Department of Entomology, University of Tolima, Ibagué, Colombia
| | - Alberto Urbaneja
- Instituto Valenciano de Investigaciones Agrarias, Centro de Protección Vegetal y Biotecnología, Valencia, Spain
| | - Meritxell Pérez-Hedo
- Instituto Valenciano de Investigaciones Agrarias, Centro de Protección Vegetal y Biotecnología, Valencia, Spain
| | - José Ms Bento
- Department of Entomology and Acarology, Luis de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
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Noman A, Aqeel M, Islam W, Khalid N, Akhtar N, Qasim M, Yasin G, Hashem M, Alamri S, Al-Zoubi OM, Jalees MM, Al-Sadi A. Insects-plants-pathogens: Toxicity, dependence and defense dynamics. Toxicon 2021; 197:87-98. [PMID: 33848517 DOI: 10.1016/j.toxicon.2021.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 10/21/2022]
Abstract
In a natural ecosystem, the pathogen-plant-insect relationship has diverse implications for each other. The pathogens as well as insect-pests consume plant tissues as their feed that mostly results in damage. In turn, plant species have evolved specialized defense system to not only protect themselves but reduce the damage also. Such tripartite interactions involve toxicity, metabolic modulations, resistance etc. among all participants of interaction. These attributes result in selection pressure among participants. Coevolution of such traits reveals need to focus and unravel multiple hidden aspects of insect-plant-pathogen interactions. The definite modulations during plant responses to biotic stress and the operating defense network against herbivores are vital to research areas. Different types of plant pathogens and herbivores are tackled with various changes in plants, e.g. changes in genes expression, glucosinolate metabolism detoxification, signal transduction, cell wall modifications, Ca2+dependent signaling. It is essential to clarify which chemical in plants can work as a defense signal or weapon in plant-pathogen-herbivore interactions. In spite of increased knowledge regarding signal transduction pathways regulating growth-defense balance, much more is needed to unveil the coordination of growth rate with metabolic modulations in bi-trophic interactions. Here, we addressed plant-pathogen-insect interaction for toxicity as well as dependnce along with plant defense dynamics against pathogens and insects with broad range effects at the physio-biochemical and molecular level. We have reviewed interfaces in plant-pathogen-insect research to show pulsating regulation of plant immunity for attuning survival and ecological equilibrium. An improved understanding of the systematic foundation of growth-defense stability has vital repercussions for enhancing crop yield, including insights into uncoupling of host-parasite tradeoffs for ecological and environmental sustainability.
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Affiliation(s)
- Ali Noman
- Department of Botany, Government College University, Faisalabad, 38040, Pakistan.
| | - Muhammad Aqeel
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, Gansu, PR China.
| | - Waqar Islam
- College of Geography, Fujian Normal University, Fuzhou, PR China
| | - Noreen Khalid
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Noreen Akhtar
- Department of Botany, Government College for Women University, Faisalabad, Pakistan
| | - Muhammad Qasim
- Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China
| | - Ghulam Yasin
- Institute of Pure and Applied Biology, Bahau Din Zakria University Multan Pakistan, Pakistan
| | - Mohamed Hashem
- King Khalid University, College of Science, Department of Biology, Abha, 61413, Saudi Arabia; Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
| | - Saad Alamri
- King Khalid University, College of Science, Department of Biology, Abha, 61413, Saudi Arabia
| | | | - Muhammad Moazam Jalees
- Department of Microbiology, Cholistan University of Veterinary and Animal Sciences. Bahawalpur, Pakistan
| | - Abdullah Al-Sadi
- College of Agriculture and Marine Sciences, Sultan Qaboos University, Muscat. Sultanate of Oman, Oman
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Weinblum N, Cna'ani A, Yaakov B, Sadeh A, Avraham L, Opatovsky I, Tzin V. Tomato Cultivars Resistant or Susceptible to Spider Mites Differ in Their Biosynthesis and Metabolic Profile of the Monoterpenoid Pathway. FRONTIERS IN PLANT SCIENCE 2021; 12:630155. [PMID: 33719301 PMCID: PMC7952643 DOI: 10.3389/fpls.2021.630155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/19/2021] [Indexed: 05/24/2023]
Abstract
The two-spotted spider mite (TSSM; Tetranychus urticae) is a ubiquitous polyphagous arthropod pest that has a major economic impact on the tomato (Solanum lycopersicum) industry. Tomato plants have evolved broad defense mechanisms regulated by the expression of defense genes, phytohormones, and secondary metabolites present constitutively and/or induced upon infestation. Although tomato defense mechanisms have been studied for more than three decades, only a few studies have compared domesticated cultivars' natural mite resistance at the molecular level. The main goal of our research was to reveal the molecular differences between two tomato cultivars with similar physical (trichome morphology and density) and agronomic traits (fruit size, shape, color, cluster architecture), but with contrasting TSSM susceptibility. A net house experiment indicated a mite-resistance difference between the cultivars, and a climate-controlled performance and oviposition bioassay supported these findings. A transcriptome analysis of the two cultivars after 3 days of TSSM infestation, revealed changes in the genes associated with primary and secondary metabolism, including salicylic acid and volatile biosynthesis (volatile benzenoid ester and monoterpenes). The Terpene synthase genes, TPS5, TPS7, and TPS19/20, encoding enzymes that synthesize the monoterpenes linalool, β-myrcene, limonene, and β-phellandrene were highly expressed in the resistant cultivar. The volatile profile of these cultivars upon mite infestation for 1, 3, 5, and 7 days, revealed substantial differences in monoterpenoid and phenylpropanoid volatiles, results consistent with the transcriptomic data. Comparing the metabolic changes that occurred in each cultivar and upon mite-infestation indicated that monoterpenes are the main metabolites that differ between cultivars (constitutive levels), while only minor changes occurred upon TSSM attack. To test the effect of these volatile variations on mites, we subjected both the TSSM and its corresponding predator, Phytoseiulus persimilis, to an olfactory choice bioassay. The predator mites were only significantly attracted to the TSSM pre-infested resistant cultivar and not to the susceptible cultivar, while the TSSM itself showed no preference. Overall, our findings revealed the contribution of constitutive and inducible levels of volatiles on mite performance. This study highlights monoterpenoids' function in plant resistance to pests and may inform the development of new resistant tomato cultivars.
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Affiliation(s)
- Nati Weinblum
- The Albert Katz International School for Desert Studies, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Alon Cna'ani
- Jacob Blaustein Center for Scientific Cooperation, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Beery Yaakov
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Adi Sadeh
- Southern R&D MOP-Darom, Negev, Israel
| | - Lior Avraham
- Agriculture Extension Service, Ministry of Agriculture and Rural Development, Bet Dagan, Israel
| | | | - Vered Tzin
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
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Garcia A, Martinez M, Diaz I, Santamaria ME. The Price of the Induced Defense Against Pests: A Meta-Analysis. FRONTIERS IN PLANT SCIENCE 2021; 11:615122. [PMID: 33552106 PMCID: PMC7859116 DOI: 10.3389/fpls.2020.615122] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/23/2020] [Indexed: 05/21/2023]
Abstract
Plants and phytophagous arthropods have co-evolved for millions of years. During this long coexistence, plants have developed defense mechanisms including constitutive and inducible defenses. In an effort to survive upon herbivore attack, plants suffer a resource reallocation to facilitate the prioritization of defense toward growth. These rearrangements usually end up with a penalty in plant growth, development or reproduction directly linked to crop losses. Achieving the balance to maximize crop yield requires a fine tune regulation specific for each host-arthropod combination, which remains to be fully elucidated. The purpose of this work is to evaluate the effects of induced plant defenses produced upon pest feeding on plant fitness and surrogate parameters. The majority of the studies are focused on specific plant-pest interactions based on artificial herbivory damage or simulated defoliation on specific plant hosts. In this meta-analysis, the relevance of the variables mediating plant-pest interactions has been studied. The importance of plant and pest species, the infestation conditions (plant age, length/magnitude of infestation) and the parameters measured to estimate fitness (carbohydrate content, growth, photosynthesis and reproduction) in the final cost have been analyzed through a meta-analysis of 209 effects sizes from 46 different studies. Herbivore infestation reduced growth, photosynthesis and reproduction but not carbohydrate content. When focusing on the analyses of the variables modulating plant-pest interactions, new conclusions arise. Differences on the effect on plant growth and photosynthesis were observed among different feeding guilds or plant hosts, suggesting that these variables are key players in the final effects. Regarding the ontogenetic stage of a plant, negative effects were reported only in infestations during the vegetative stage of the plant, while no effect was observed during the reproductive stage. In addition, a direct relation was found between the durability and magnitude of the infestation, and the final negative effect on plant fitness. Among the parameters used to estimate the cost, growth and photosynthesis revealed more differences among subgroups than reproduction parameters. Altogether, this information on defense-growth trade-offs should be of great help for the scientific community to design pest management strategies reducing costs.
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Affiliation(s)
- Alejandro Garcia
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid – Instituto Nacional de Investigación y Tecnología Agraria y Alimentación, Madrid, Spain
| | - Manuel Martinez
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid – Instituto Nacional de Investigación y Tecnología Agraria y Alimentación, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Isabel Diaz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid – Instituto Nacional de Investigación y Tecnología Agraria y Alimentación, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - M. Estrella Santamaria
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid – Instituto Nacional de Investigación y Tecnología Agraria y Alimentación, Madrid, Spain
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Dehimeche N, Buatois B, Bertin N, Staudt M. Insights into the Intraspecific Variability of the above and Belowground Emissions of Volatile Organic Compounds in Tomato. Molecules 2021; 26:molecules26010237. [PMID: 33466378 PMCID: PMC7796079 DOI: 10.3390/molecules26010237] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 11/16/2022] Open
Abstract
The in-vivo monitoring of volatile organic compound (VOC) emissions is a potential non-invasive tool in plant protection, especially in greenhouse cultivation. We studied VOC production from above and belowground organs of the eight parents of the Multi-Parent Advanced Generation Intercross population (MAGIC) tomato population, which exhibits a high genetic variability, in order to obtain more insight into the variability of constitutive VOC emissions from tomato plants under stress-free conditions. Foliage emissions were composed of terpenes, the majority of which were also stored in the leaves. Foliage emissions were very low, partly light-dependent, and differed significantly among genotypes, both in quantity and quality. Soil with roots emitted VOCs at similar, though more variable, rates than foliage. Soil emissions were characterized by terpenes, oxygenated alkanes, and alkenes and phenolic compounds, only a few of which were found in root extracts at low concentrations. Correlation analyses revealed that several VOCs emitted from foliage or soil are jointly regulated and that above and belowground sources are partially interconnected. With respect to VOC monitoring in tomato crops, our results underline that genetic variability, light-dependent de-novo synthesis, and belowground sources are factors to be considered for successful use in crop monitoring.
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Affiliation(s)
- Nafissa Dehimeche
- Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France; (N.D.); (B.B.)
| | - Bruno Buatois
- Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France; (N.D.); (B.B.)
| | - Nadia Bertin
- INRAE, UR115 Plantes et Systèmes de Culture Horticoles, Site Agroparc, 84914 Avignon, France;
| | - Michael Staudt
- Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France; (N.D.); (B.B.)
- Correspondence: ; Tel.: +33-467613272
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Mouden S, Kappers IF, Klinkhamer PGL, Leiss KA. Cultivar Variation in Tomato Seed Coat Permeability Is an Important Determinant of Jasmonic Acid Elicited Defenses Against Western Flower Thrips. FRONTIERS IN PLANT SCIENCE 2020; 11:576505. [PMID: 33262775 PMCID: PMC7686761 DOI: 10.3389/fpls.2020.576505] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/14/2020] [Indexed: 05/20/2023]
Abstract
Induction of defenses is one of the most widely accepted eco-friendly approaches for management of pests and diseases. Seeds are receptive to resistance-inducing chemicals and could offer broad-spectrum protection at the early stages of development. However, seed treatment with elicitors has previously been shown to differentially influence induced defense responses among cultivars and thus, could hamper commercial exploitation. In this context, the objective of the present study was to evaluate the genotype-dependent ability of jasmonic acid (JA) to induce resistance against western flower thrips (WFT) at the seed stage. We examined the variation in inducibility of resistance in eight commercial tomato cultivars. Causal factors accounting for discrepancies in JA-induced responses at the seed stage were phenotypically and biochemically evaluated. Seed receptivity to exogenous JA appeared to be cultivar dependent. Thrips associated silver damage was only reduced in JA seed-treated plants of cultivar Carousel. Enhancement of resistance, was not associated with activation of defense-related traits such as polyphenol oxidase activity (PPO), trichomes or volatiles. Sulfuric acid scarification, prior to JA seed incubation, significantly augmented the embryonic responsiveness to JA in cv. Moneymaker without an adverse effect on growth. Hence, these results support the hypothesis that seed coat permeability is a key factor for successfully inducing JA mediated thrips defenses. The outcome of our study is of translational value as it creates opportunities for the seed industry to perform pre-treatments on non-responsive cultivars as well as for tomato breeding programs to select for genetic traits that affect seed permeability.
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Affiliation(s)
- Sanae Mouden
- Plant Science and Natural Products, Institute of Biology, Leiden University, Leiden, Netherlands
- Business Unit Horticulture, Wageningen University and Research, Bleiswijk, Netherlands
| | - Iris F. Kappers
- Laboratory of Plant Physiology, Wageningen University and Research, Wageningen, Netherlands
| | - Peter G. L. Klinkhamer
- Plant Science and Natural Products, Institute of Biology, Leiden University, Leiden, Netherlands
| | - Kirsten A. Leiss
- Laboratory of Plant Physiology, Wageningen University and Research, Wageningen, Netherlands
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Tarusikirwa VL, Machekano H, Mutamiswa R, Chidawanyika F, Nyamukondiwa C. Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on the "Offensive" in Africa: Prospects for Integrated Management Initiatives. INSECTS 2020; 11:E764. [PMID: 33171892 PMCID: PMC7694550 DOI: 10.3390/insects11110764] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/08/2020] [Accepted: 09/16/2020] [Indexed: 11/16/2022]
Abstract
The South American tomato pinworm Tuta absoluta (Meyrick) has aggressively invaded the African continent. Since its first detection in North Africa in Morocco and Tunisia in 2008, it has successfully invaded the entire southern, eastern and western Africa, where it has been on the offensive, causing significant damage to Solanaceous food crops. While control of this prolific invader is primarily based on conventional synthetic pesticides, this form of control is consistently losing societal approval owing to (1) pesticide resistance development and consequential loss of field efficacy; (2) growing public health concerns; (3) environmental contamination and loss of biological diversity and its associated ecological services; and (4) unsustainable costs, particularly for resource-poor African farmers. As such, more ecologically sound pest management strategies, e.g., the use of natural substances (NSs), may offer a more sustainable approach to tackling this offensive. A systematic literature search through digital libraries and online databases (JSTOR, PubMed, Web of Science, SCOPUS and Google Scholar) was conducted using predetermined keywords on T. absoluta, e.g., South American tomato pinworm. We use this to explain the invasion of T. absoluta in Africa, citing mechanisms facilitating African invasion and exploring the potential of its control using diverse biological control agents, natural and low-risk substances. Specifically, we explore how botanicals, entomopathogens, semiochemicals, predators, parasitoids, host plant resistance, sterile insect technique and others have been spatially employed to control T. absoluta and discuss the potential of these control agents in African landscapes using more integrated approaches. We discuss the use of NSs as assets to general insect pest control, some potential associated liabilities and explain the potential use and barriers to adoption in African systems from a legislative, economic, ecological and social standpoint.
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Affiliation(s)
- Vimbai L. Tarusikirwa
- Department of Biological Sciences and Biotechnology, Botswana International University of Science and Technology, Palapye, Botswana; (V.L.T.); (H.M.)
| | - Honest Machekano
- Department of Biological Sciences and Biotechnology, Botswana International University of Science and Technology, Palapye, Botswana; (V.L.T.); (H.M.)
| | - Reyard Mutamiswa
- Department of Zoology and Entomology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; (R.M.); (F.C.)
| | - Frank Chidawanyika
- Department of Zoology and Entomology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; (R.M.); (F.C.)
| | - Casper Nyamukondiwa
- Department of Biological Sciences and Biotechnology, Botswana International University of Science and Technology, Palapye, Botswana; (V.L.T.); (H.M.)
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Zhu YX, Song ZR, Song YL, Hong XY. Double infection of Wolbachia and Spiroplasma alters induced plant defense and spider mite fecundity. PEST MANAGEMENT SCIENCE 2020; 76:3273-3281. [PMID: 32388920 DOI: 10.1002/ps.5886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/14/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Herbivore-associated bacterial symbionts can change plant physiology and influence herbivore fitness. The spider mite Tetranychus truncatus is a notorious pest harboring various bacterial symbionts; however, the effect of bacterial symbionts on host plant physiology remains unclear. Here, we investigated whether infection with the endosymbionts Wolbachia and Spiroplasma altered spider mite performance on tomato plants and affected plant-induced defenses. RESULTS Wolbachia and Spiroplasma were mainly located in the gnathosoma and ovaries of their spider mite hosts. Wolbachia and Spiroplasma significantly improved spider mite reproductive performance in cultivated and wild-type tomato. However, in plants deficient in jasmonic acid (JA) and salicylic acid (SA), there were no significant differences in reproduction between spider mites infected with Wolbachia and Spiroplasma and uninfected mites. The results indicated that the reproduction benefits conferred by endosymbionts may relate to plant defenses. Both spider mites infected with Wolbachia and Spiroplasma and uninfected mites induced similar levels of JA and SA accumulation in tomato, whereas tomato plants damaged by spider mites infected with both Wolbachia and Spiroplasma showed lower expression levels of JA- and SA-responsive genes than those damaged by uninfected spider mites. In addition, mites infected with Wolbachia and Spiroplasma mites consumed more tomato amino acids compared to uninfected spider mites, which may have contributed to host fecundity. CONCLUSIONS Our results suggest that the reproduction benefits conferred by endosymbionts may be associated with changes in plant defense parameters and the concentrations of plant amino acids. The results highlight the importance of endosymbionts in interactions between spider mites and their host plants. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Yu-Xi Zhu
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Zhang-Rong Song
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Yue-Ling Song
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Xiao-Yue Hong
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
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Grunseich JM, Thompson MN, Hay AA, Gorman Z, Kolomiets MV, Eubanks MD, Helms AM. Risky roots and careful herbivores: Sustained herbivory by a root‐feeding herbivore attenuates indirect plant defences. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13627] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- John M. Grunseich
- Department of Entomology Texas A&M University College Station TX USA
| | | | - Allison A. Hay
- Department of Entomology Texas A&M University College Station TX USA
| | - Zachary Gorman
- Department of Plant Pathology and Microbiology Texas A&M University College Station TX USA
| | - Michael V. Kolomiets
- Department of Plant Pathology and Microbiology Texas A&M University College Station TX USA
| | - Micky D. Eubanks
- Department of Entomology Texas A&M University College Station TX USA
| | - Anjel M. Helms
- Department of Entomology Texas A&M University College Station TX USA
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Godinho DP, Janssen A, Li D, Cruz C, Magalhães S. The distribution of herbivores between leaves matches their performance only in the absence of competitors. Ecol Evol 2020; 10:8405-8415. [PMID: 32788989 PMCID: PMC7417252 DOI: 10.1002/ece3.6547] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 04/27/2020] [Accepted: 06/16/2020] [Indexed: 12/02/2022] Open
Abstract
Few studies have tested how plant quality and the presence of competitors interact in determining how herbivores choose between different leaves within a plant. We investigated this in two herbivorous spider mites sharing tomato plants: Tetranychus urticae, which generally induces plant defenses, and Tetranychus evansi, which suppresses them, creating asymmetrical effects on coinfesting competitors. On uninfested plants, both herbivore species preferred young leaves, coinciding with increased mite performance. On plants with heterospecifics, the mites did not prefer leaves on which they had a better performance. In particular, T. urticae avoided leaves infested with T. evansi, which is in agreement with T. urticae being outcompeted by T. evansi. In contrast, T. evansi did not avoid leaves with the other species, but distributed itself evenly over plants infested with heterospecifics. We hypothesize that this behavior of T. evansi may prevent further spread of T. urticae over the shared plant. Our results indicate that leaf age determines within-plant distribution of herbivores only in absence of competitors. Moreover, they show that this distribution depends on the order of arrival of competitors and on their effects on each other, with herbivores showing differences in behavior within the plant as a possible response to the outcome of those interactions.
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Affiliation(s)
- Diogo P. Godinho
- cE3c: Centre for Ecology, Evolution and Environmental ChangesFaculdade de CiênciasUniversidade de LisboaLisboaPortugal
| | - Arne Janssen
- Evolutionary and Population Biology (IBED)University of AmsterdamAmsterdamThe Netherlands
- Department of EntomologyFederal University of ViçosaViçosaBrazil
| | - Dan Li
- Evolutionary and Population Biology (IBED)University of AmsterdamAmsterdamThe Netherlands
| | - Cristina Cruz
- cE3c: Centre for Ecology, Evolution and Environmental ChangesFaculdade de CiênciasUniversidade de LisboaLisboaPortugal
| | - Sara Magalhães
- cE3c: Centre for Ecology, Evolution and Environmental ChangesFaculdade de CiênciasUniversidade de LisboaLisboaPortugal
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Liu J, Legarrea S, Alba JM, Dong L, Chafi R, Menken SBJ, Kant MR. Juvenile Spider Mites Induce Salicylate Defenses, but Not Jasmonate Defenses, Unlike Adults. FRONTIERS IN PLANT SCIENCE 2020; 11:980. [PMID: 32754172 PMCID: PMC7367147 DOI: 10.3389/fpls.2020.00980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/16/2020] [Indexed: 05/25/2023]
Abstract
When plants detect herbivores they strengthen their defenses. As a consequence, some herbivores evolved the means to suppress these defenses. Research on induction and suppression of plant defenses usually makes use of particular life stages of herbivores. Yet many herbivorous arthropods go through development cycles in which their successive stages have different characteristics and lifestyles. Here we investigated the interaction between tomato defenses and different herbivore developmental stages using two herbivorous spider mites, i.e., Tetranychus urticae of which the adult females induce defenses and T. evansi of which the adult females suppress defenses in Solanum lycopersicum (tomato). First, we monitored egg-to-adult developmental time on tomato wild type (WT) and the mutant defenseless-1 (def-1, unable to produce jasmonate-(JA)-defenses). Then we assessed expression of salivary effector genes (effector 28, 84, SHOT2b, and SHOT3b) in the consecutive spider mite life stages as well as adult males and females. Finally, we assessed the extent to which tomato plants upregulate JA- and salicylate-(SA)-defenses in response to the consecutive mite developmental stages and to the two sexes. The consecutive juvenile mite stages did not induce JA defenses and, accordingly, egg-to-adult development on WT and def-1 did not differ for either mite species. Their eggs however appeared to suppress the SA-response. In contrast, all the consecutive feeding stages upregulated SA-defenses with the strongest induction by T. urticae larvae. Expression of effector genes was higher in the later developmental stages. Comparing expression in adult males and females revealed a striking pattern: while expression of effector 84 and SHOT3b was higher in T. urticae females than in males, this was the opposite for T. evansi. We also observed T. urticae females to upregulate tomato defenses, while T. evansi females did not. In addition, of both species also the males did not upregulate defenses. Hence, we argue that mite ontogenetic niche shifts and stage-specific composition of salivary secreted proteins probably together determine the course and efficiency of induced tomato defenses.
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Affiliation(s)
- Jie Liu
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
- State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Saioa Legarrea
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Juan M. Alba
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Lin Dong
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Rachid Chafi
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Steph B. J. Menken
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Merijn R. Kant
- Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
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Liu J, Chafi R, Legarrea S, Alba JM, Meijer T, Menken SBJ, Kant MR. Spider Mites Cause More Damage to Tomato in the Dark When Induced Defenses Are Lower. J Chem Ecol 2020; 46:631-641. [PMID: 32588284 PMCID: PMC7371662 DOI: 10.1007/s10886-020-01195-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 11/18/2022]
Abstract
Plants have evolved robust mechanisms to cope with incidental variation (e.g. herbivory) and periodical variation (e.g. light/darkness during the day-night cycle) in their environment. It has been shown that a plant's susceptibility to pathogens can vary during its day-night cycle. We demonstrated earlier that the spider mite Tetranychus urticae induces jasmonate- and salicylate-mediated defenses in tomato plants while the spider mite T. evansi suppresses these defenses probably by secreting salivary effector proteins. Here we compared induction/suppression of plant defenses; the expression of mite-effector genes and the amount of damage due to mite feeding during the day and during the night. T. urticae feeding upregulated the expression of jasmonate and salicylate marker-genes albeit significantly higher under light than under darkness. Some of these marker-genes were also upregulated by T. evansi-feeding albeit to much lower levels than by T. urticae-feeding. The expression of effector 28 was not affected by light or darkness in either mite species. However, the expression of effector 84 was considerably higher under light, especially for T. evansi. Finally, while T. evansi produced overall more feeding damage than T. urticae both mites produced consistently more damage during the dark phase than under light. Our results suggest that induced defenses are subject to diurnal variation possibly causing tomatoes to incur more damage due to mite-feeding during the dark phase. We speculate that mites, but especially T. evansi, may relax effector production during the dark phase because under these conditions the plant's ability to upregulate defenses is reduced.
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Affiliation(s)
- Jie Liu
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
- State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Rachid Chafi
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Saioa Legarrea
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Juan M Alba
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Tomas Meijer
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Steph B J Menken
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Merijn R Kant
- Section Molecular and Chemical Ecology, Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands.
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Knegt B, Meijer TT, Kant MR, Kiers ET, Egas M. Tetranychus evansi spider mite populations suppress tomato defenses to varying degrees. Ecol Evol 2020; 10:4375-4390. [PMID: 32489604 PMCID: PMC7246200 DOI: 10.1002/ece3.6204] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 03/30/2019] [Accepted: 04/13/2019] [Indexed: 01/30/2023] Open
Abstract
Plant defense suppression is an offensive strategy of herbivores, in which they manipulate plant physiological processes to increase their performance. Paradoxically, defense suppression does not always benefit the defense-suppressing herbivores, because lowered plant defenses can also enhance the performance of competing herbivores and can expose herbivores to increased predation. Suppression of plant defense may therefore entail considerable ecological costs depending on the presence of competitors and natural enemies in a community. Hence, we hypothesize that the optimal magnitude of suppression differs among locations. To investigate this, we studied defense suppression across populations of Tetranychus evansi spider mites, a herbivore from South America that is an invasive pest of solanaceous plants including cultivated tomato, Solanum lycopersicum, in other parts of the world. We measured the level of expression of defense marker genes in tomato plants after infestation with mites from eleven different T. evansi populations. These populations were chosen across a range of native (South American) and non-native (other continents) environments and from different host plant species. We found significant variation at three out of four defense marker genes, demonstrating that T. evansi populations suppress jasmonic acid- and salicylic acid-dependent plant signaling pathways to varying degrees. While we found no indication that this variation in defense suppression was explained by differences in host plant species, invasive populations tended to suppress plant defense to a smaller extent than native populations. This may reflect either the genetic lineage of T. evansi-as all invasive populations we studied belong to one linage and both native populations to another-or the absence of specialized natural enemies in invasive T. evansi populations.
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Affiliation(s)
- Bram Knegt
- Department of Evolutionary and Population BiologyInstitute for Biodiversity and Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
| | - Tomas T. Meijer
- Department of Evolutionary and Population BiologyInstitute for Biodiversity and Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
| | - Merijn R. Kant
- Department of Evolutionary and Population BiologyInstitute for Biodiversity and Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
| | - E. Toby Kiers
- Department of Ecological ScienceVU UniversityAmsterdamThe Netherlands
| | - Martijn Egas
- Department of Evolutionary and Population BiologyInstitute for Biodiversity and Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
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Santamaria ME, Arnaiz A, Rosa-Diaz I, González-Melendi P, Romero-Hernandez G, Ojeda-Martinez DA, Garcia A, Contreras E, Martinez M, Diaz I. Plant Defenses Against Tetranychus urticae: Mind the Gaps. PLANTS 2020; 9:plants9040464. [PMID: 32272602 PMCID: PMC7238223 DOI: 10.3390/plants9040464] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 01/24/2023]
Abstract
The molecular interactions between a pest and its host plant are the consequence of an evolutionary arms race based on the perception of the phytophagous arthropod by the plant and the different strategies adopted by the pest to overcome plant triggered defenses. The complexity and the different levels of these interactions make it difficult to get a wide knowledge of the whole process. Extensive research in model species is an accurate way to progressively move forward in this direction. The two-spotted spider mite, Tetranychus urticae Koch has become a model species for phytophagous mites due to the development of a great number of genetic tools and a high-quality genome sequence. This review is an update of the current state of the art in the molecular interactions between the generalist pest T. urticae and its host plants. The knowledge of the physical and chemical constitutive defenses of the plant and the mechanisms involved in the induction of plant defenses are summarized. The molecular events produced from plant perception to the synthesis of defense compounds are detailed, with a special focus on the key steps that are little or totally uncovered by previous research.
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Affiliation(s)
- M. Estrella Santamaria
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Ana Arnaiz
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Irene Rosa-Diaz
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Pablo González-Melendi
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, UPM, 28040 Madrid, Spain
| | - Gara Romero-Hernandez
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Dairon A. Ojeda-Martinez
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Alejandro Garcia
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Estefania Contreras
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
| | - Manuel Martinez
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, UPM, 28040 Madrid, Spain
| | - Isabel Diaz
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain; (M.E.S.); (A.A.); (I.R.-D.); (P.G.-M.); (G.R.-H.); (D.A.O.-M.); (A.G.); (E.C.); (M.M.)
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, UPM, 28040 Madrid, Spain
- Correspondence: ; Tel.: +34-910679180
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Ahmad-Hosseini M, Khanjani M, Karamian R. Resistance of some commercial walnut cultivars and genotypes to Aceria tristriata (Nalepa) (Acari: Eriophyidae) and its correlation with some plant features. PEST MANAGEMENT SCIENCE 2020; 76:986-995. [PMID: 31489761 DOI: 10.1002/ps.5607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 08/10/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The walnut leaf gall mite (WLGM) (Aceria tristriata (Nalepa)) is one of the major pests of walnut in western Iran. The use of a resistant variety is an economical and environment-friendly method of pest control. The aim of the present study is to assess resistance of some walnut cultivars and genotypes in relation to WLGM. Also, the current research aimed to study a possible correlation between resistance with plant morphological and biochemical features. RESULTS Based on the leaf damage index (number of galls per leaf and plant, the percentage of infested leaves and the percentage of leaf injury area) induced by WLGM, the studied cultivars and genotypes were classified into four groups from susceptible to approximately resistant. Free-choice experiments indicated that Jamal and Chandler cultivars were colonized by lower densities of WLGM, whereas Seedling, Hartly, Lara and Z60 hosted denser populations. In antibiosis assay, the highest mite density was created in the galls on the leaves of Seedling and Hartly, whereas lowest mite density was observed in galled leaves of Chandler and Jamal cultivars. CONCLUSION Results from biochemical assays showed that nearly all evaluated biomarkers had negative correlation with number of galls per leaf and mite density. Generally, resistant cultivars (Chandler, Jamal and Pedro) significantly produced defensive compounds more than those of controls after mite infestation. Also, it is worth noting that, the content of photosynthetic pigments significantly reduced in susceptible cultivars after mite infestation. The obtained results from this study can be useful for provisional resistance screening. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Mohammad Ahmad-Hosseini
- Department of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran
| | - Mohammad Khanjani
- Department of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran
| | - Roya Karamian
- Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran
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Variation in Terpene Profiles of Thymus vulgaris in Water Deficit Stress Response. Molecules 2020; 25:molecules25051091. [PMID: 32121165 PMCID: PMC7179171 DOI: 10.3390/molecules25051091] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/22/2020] [Accepted: 02/26/2020] [Indexed: 11/17/2022] Open
Abstract
Thyme (Thymus spp.) volatiles predominantly consisting of monoterpenes and sesquiterpenes, serve as antimicrobial, antiseptic and antioxidant in phytomedicine. They also play a key role in plants as secondary metabolites via their potential role against herbivores, attracting pollinators and abiotic stress tolerance. Plant volatiles are affected by different environmental factors including drought. Here, the effect of prolonged water deficit stress on volatile composition was studied on the sensitive and tolerant thyme plant cultivars (T. vulgaris Var. Wagner and T. vulgaris Var. Varico3, respectively). Volatile sampling along with morpho–physiological parameters such as soil moisture, water potential, shoot dry weight, photosynthetic rate and water content measurements were performed on one-month-old plants subsequent to water withholding at 4-day intervals until the plants wilted. The tolerant and sensitive plants had clearly different responses at physiological and volatile levels. The most stress-induced changes on the plants’ physiological traits occurred in the photosynthetic rates, where the tolerant plants maintained their photosynthesis similar to the control ones until the 8th day of the drought stress period. While the analysis of the volatile compounds (VOCs) of the sensitive thyme plants displayed the same pattern for almost all of them, in the tolerant plants, the comparison of the pattern of changes in the tolerant plants revealed that the changes could be classified into three separate groups. Our experimental and theoretical studies totally revealed that the most determinant compounds involved in drought stress adaptation included α-phellandrene, O-cymene, γ-terpinene and β-caryophyelene. Overall, it can be concluded that in the sensitive plants trade-off between growth and defense, the tolerant ones simultaneously activate their stress response mechanism and continue their growth.
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Su Q, Yang F, Yao Q, Peng Z, Tong H, Wang S, Xie W, Wu Q, Zhang Y. A non‐vector herbivore indirectly increases the transmission of a vector‐borne virus by reducing plant chemical defences. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13535] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Qi Su
- Hubei Engineering Technology Center for Pest Forewarning and Management College of Agriculture Yangtze University JingzhouHubei China
| | - Fengbo Yang
- Hubei Engineering Technology Center for Pest Forewarning and Management College of Agriculture Yangtze University JingzhouHubei China
| | - Qixi Yao
- Hubei Engineering Technology Center for Pest Forewarning and Management College of Agriculture Yangtze University JingzhouHubei China
| | - Zhengke Peng
- Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China
| | - Hong Tong
- Hubei Engineering Technology Center for Pest Forewarning and Management College of Agriculture Yangtze University JingzhouHubei China
| | - Shaoli Wang
- Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China
| | - Wen Xie
- Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China
| | - Qingjun Wu
- Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China
| | - Youjun Zhang
- Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing China
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Bacteria Affect Plant-Mite Interactions Via Altered Scent Emissions. J Chem Ecol 2020; 46:782-792. [DOI: 10.1007/s10886-020-01147-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/18/2019] [Accepted: 01/08/2020] [Indexed: 12/16/2022]
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Oviposition-Induced Volatiles Affect Electrophysiological and Behavioral Responses of Egg Parasitoids. INSECTS 2019; 10:insects10120437. [PMID: 31817361 PMCID: PMC6956134 DOI: 10.3390/insects10120437] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/29/2019] [Accepted: 11/29/2019] [Indexed: 11/16/2022]
Abstract
In response to an attack by herbivores, plants emit a variety of compounds that may act as semiochemicals. Oviposition-induced volatiles (OIPVs) have been shown to mediate interactions between plants and natural enemies. Here, we investigated the role of OIPVs by Tuta absoluta towards two egg parasitoids, Trichogramma cordubense and T. achaeae. We collected headspace volatiles from tomato plants at 24, 48, and 72 h after oviposition by T. absoluta females and tested the antennographic response of Trichogramma parasitoids to them by means of gas chromatography- electro-antennographical detection (GC-EAD). The response of the parasitoids was also tested in behavioral experiments using a Y-tube olfactometer. Oviposition by T. absoluta females induced qualitative and quantitative changes in the volatiles emitted by tomato plants. Antennae of Trichogramma parasitoids responded to several of the induced volatiles in GC-EAD. T. cordubense females were attracted to tomato plants with T. absoluta eggs 24 h after oviposition. The elucidation of the behavior of egg parasitoids towards OIPVs enhances the development of sustainable management strategies either by selecting species that exploit OIPVs or by manipulating their foraging behavior by utilizing specific OIPVs that are used by parasitoids as a host location.
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Iida J, Desaki Y, Hata K, Uemura T, Yasuno A, Islam M, Maffei ME, Ozawa R, Nakajima T, Galis I, Arimura GI. Tetranins: new putative spider mite elicitors of host plant defense. THE NEW PHYTOLOGIST 2019; 224:875-885. [PMID: 30903698 DOI: 10.1111/nph.15813] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 03/08/2019] [Indexed: 05/07/2023]
Abstract
The two-spotted spider mite (Tetranychus urticae) is a plant-sucking arthropod herbivore that feeds on a wide array of cultivated plants. In contrast to the well-characterized classical chewing herbivore salivary elicitors that promote plant defense responses, little is known about sucking herbivores' elicitors. To characterize the sucking herbivore elicitors, we explored putative salivary gland proteins of spider mites by using an Agrobacterium-mediated transient expression system or protein infiltration in damaged bean leaves. Two candidate elicitors (designated as tetranin1 (Tet1) and tetranin2 (Tet2)) triggered early leaf responses (cytosolic calcium influx and membrane depolarization) and increased the transcript abundances of defense genes in the leaves, eventually resulting in reduced survivability of T. urticae on the host leaves as well as induction of indirect plant defenses by attracting predatory mites. Tet1 and/or Tet2 also induced jasmonate, salicylate and abscisic acid biosynthesis. Notably, Tet2-induced signaling cascades were also activated via the generation of reactive oxygen species. The signaling cascades of these two structurally dissimilar elicitors are mostly overlapping but partially distinct and thus they would coordinate the direct and indirect defense responses in host plants under spider mite attack in both shared and distinct manners.
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Affiliation(s)
- Junya Iida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
| | - Yoshitake Desaki
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
| | - Kumiko Hata
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
| | - Takuya Uemura
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
| | - Ayano Yasuno
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
| | - Monirul Islam
- Department of Life Sciences and Systems Biology, Plant Physiology-Innovation Centre, University of Turin, Via Quarello15/A, I-10135, Turin, Italy
| | - Massimo E Maffei
- Department of Life Sciences and Systems Biology, Plant Physiology-Innovation Centre, University of Turin, Via Quarello15/A, I-10135, Turin, Italy
| | - Rika Ozawa
- Center for Ecological Research, Kyoto University, Otsu, 520-2113, Japan
| | - Tadaaki Nakajima
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources (IPSR), Okayama University, 2-20-1 Chuo, Kurashiki, 710-0046, Japan
| | - Gen-Ichiro Arimura
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, 125-8585, Japan
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Ma L, Li MY, Chang CY, Chen FF, Hu Y, Liu XD. The host range of Aphis gossypii is dependent on aphid genetic background and feeding experience. PeerJ 2019; 7:e7774. [PMID: 31579627 PMCID: PMC6768058 DOI: 10.7717/peerj.7774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 08/27/2019] [Indexed: 01/12/2023] Open
Abstract
Background A polyphagous insect herbivore has a wide range of host plants. However, it has been found that many polyphagous herbivores commonly exhibit a strong preference for a subset of species in their broad host range, and various host biotypes exist in herbivore populations. Nutrition and secondary metabolites in plants affect herbivore preference and performance, but it is still not clear which factors determine the host range and host preference of polyphagous herbivores. Method Cotton-melon aphids, Aphis gossypii Glover, collected from cotton and cucumber crops, were used in this study. The genetic backgrounds of these aphids were detected using microsatellite PCR and six genotypes were evaluated. Performance of these six aphid genotypes on excised leaves and plants of cotton and cucumber seedlings were examined through a reciprocal transplant experiment. In order to detect whether the feeding experience on artificial diet would alter aphid host range, the six genotypes of aphids fed on artificial diet for seven days were transferred onto cotton and cucumber leaves, and then their population growth on these two host plants was surveyed. Results Aphids from cotton and cucumber plants could not colonize the excised leaves and intact plants of cucumber and cotton seedlings, respectively. All six genotypes of aphids collected from cotton and cucumber plants could survive and produce offspring on artificial diet, which lacked plant secondary metabolites. The feeding experience on the artificial diet did not alter the ability of all six genotypes to use their native host plants. However, after feeding on this artificial diet for seven days, two aphid genotypes from cotton and one from cucumber acquired the ability to use both of the excised leaves from cucumber and cotton plants. The two aphid genotypes from cotton conditioned by the feeding experience on artificial diet and then reared on excised cucumber leaves for >12 generations still maintained the ability to use intact cotton plants but did not establish a population on cucumber plants. However, one cucumber genotype conditioned by artificial diet and then reared on excised cotton leaves could use both the intact cotton and cucumber plants, showing that the expansion of host range was mediated by feeding experience. Conclusion Feeding experience on artificial diet induced the expansion of host range of the cucurbit-specialized A. gossypii, and this expansion was genotype-specific. We speculated that feeding on a constant set of host plants in the life cycle of aphids may contribute to the formation of host specialization.
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Affiliation(s)
- Lin Ma
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Meng-Yue Li
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Chun-Yan Chang
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Fang-Fang Chen
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Yang Hu
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
| | - Xiang-Dong Liu
- Department of Entomology, Nanjing Agricultural University, Nanjing, China
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Pollier J, De Geyter N, Moses T, Boachon B, Franco-Zorrilla JM, Bai Y, Lacchini E, Gholami A, Vanden Bossche R, Werck-Reichhart D, Goormachtig S, Goossens A. The MYB transcription factor Emission of Methyl Anthranilate 1 stimulates emission of methyl anthranilate from Medicago truncatula hairy roots. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 99:637-654. [PMID: 31009122 DOI: 10.1111/tpj.14347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 03/13/2019] [Accepted: 04/10/2019] [Indexed: 06/09/2023]
Abstract
Plants respond to herbivore or pathogen attacks by activating specific defense programs that include the production of bioactive specialized metabolites to eliminate or deter the attackers. Volatiles play an important role in the interaction of a plant with its environment. Through transcript profiling of jasmonate-elicited Medicago truncatula cells, we identified Emission of Methyl Anthranilate (EMA) 1, a MYB transcription factor that is involved in the emission of the volatile compound methyl anthranilate when expressed in M. truncatula hairy roots, giving them a fruity scent. RNA sequencing (RNA-Seq) analysis of the fragrant roots revealed the upregulation of a methyltransferase that was subsequently characterized to catalyze the O-methylation of anthranilic acid and was hence named M. truncatula anthranilic acid methyl transferase (MtAAMT) 1. Given that direct activation of the MtAAMT1 promoter by EMA1 could not be unambiguously demonstrated, we further probed the RNA-Seq data and identified the repressor protein M. truncatula plant AT-rich sequence and zinc-binding (MtPLATZ) 1. Emission of Methyl Anthranilate 1 binds a tandem repeat of the ACCTAAC motif in the MtPLATZ1 promoter to transactivate gene expression. Overexpression of MtPLATZ1 in transgenic M. truncatula hairy roots led to transcriptional silencing of EMA1, indicating that MtPLATZ1 may be part of a negative feedback loop to control the expression of EMA1. Finally, application of exogenous methyl anthranilate boosted EMA1 and MtAAMT1 expression dramatically, thus also revealing a positive amplification loop. Such positive and negative feedback loops seem to be the norm rather than the exception in the regulation of plant specialized metabolism.
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Affiliation(s)
- Jacob Pollier
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Nathan De Geyter
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Tessa Moses
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Benoît Boachon
- Institut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357 du Centre National de la Recherche Scientifique, Université de Strasbourg, 67000, Strasbourg, France
| | | | - Yuechen Bai
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Elia Lacchini
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Azra Gholami
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Robin Vanden Bossche
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Danièle Werck-Reichhart
- Institut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357 du Centre National de la Recherche Scientifique, Université de Strasbourg, 67000, Strasbourg, France
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
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Murata M, Nakai Y, Kawazu K, Ishizaka M, Kajiwara H, Abe H, Takeuchi K, Ichinose Y, Mitsuhara I, Mochizuki A, Seo S. Loliolide, a Carotenoid Metabolite, Is a Potential Endogenous Inducer of Herbivore Resistance. PLANT PHYSIOLOGY 2019; 179:1822-1833. [PMID: 30700538 PMCID: PMC6446782 DOI: 10.1104/pp.18.00837] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 01/18/2019] [Indexed: 05/12/2023]
Abstract
Jasmonic acid (JA) plays an important role in the induction of herbivore resistance in many plants. However, JA-independent herbivore resistance has been suggested. An herbivore-resistance-inducing substance was isolated from Tobacco mosaic virus-infected tobacco (Nicotiana tabacum) leaves in which a hypersensitive response (HR) was induced and identified as loliolide, which has been identified as a β-carotene metabolite. When applied to tomato (Solanum lycopersicum) leaves, loliolide decreased the survival rate of the two-spotted spider mite, Tetranychus urticae, egg deposition by the same pest, and the survival rate of larvae of the common cutworm Spodoptera litura without exhibiting toxicity against these herbivores. Endogenous loliolide levels increased not only with an infestation by S litura larvae, but also with the exogenous application of their oral secretions in tomato. A microarray analysis identified cell-wall-associated defense genes as loliolide-responsive tomato genes, and exogenous JA application did not induce the expression of these genes. Suppressor of zeaxanthin-less (szl), an Arabidopsis (Arabidopsis thaliana) mutant with a point mutation in a key gene of the β-carotene metabolic pathway, exhibited the decreased accumulation of endogenous loliolide and increased susceptibility to infestation by the western flower thrip (Frankliniella occidentalis). A pretreatment with loliolide decreased susceptibility to thrips in the JA-insensitive Arabidopsis mutant coronatine-insensitive1 Exogenous loliolide did not restore reduced electrolyte leakage in szl in response to a HR-inducing bacterial strain. These results suggest that loliolide functions as an endogenous signal that mediates defense responses to herbivores, possibly independently of JA, at least in tomato and Arabidopsis plants.
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Affiliation(s)
- Mika Murata
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
- Institute of Vegetable and Floriculture Science, National Agriculture and Food Research Organization, Tsu, Mie, 514-2392, Japan
| | - Yusuke Nakai
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
- Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research Organization, Kurume, Fukuoka 839-8503, Japan
| | - Kei Kawazu
- National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki 305-8604, Japan
| | - Masumi Ishizaka
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8604, Japan
| | - Hideyuki Kajiwara
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8604, Japan
| | - Hiroshi Abe
- Experimantal Plant Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki 305-0074, Japan
| | - Kasumi Takeuchi
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8602, Japan
| | - Yuki Ichinose
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Ichiro Mitsuhara
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Atsushi Mochizuki
- National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki 305-8604, Japan
| | - Shigemi Seo
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8602, Japan
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Rossouw LT, Madala NE, Tugizimana F, Steenkamp PA, Esterhuizen LL, Dubery IA. Deciphering the Resistance Mechanism of Tomato Plants Against Whitefly-Mediated Tomato Curly Stunt Virus Infection through Ultra-High-Performance Liquid Chromatography Coupled to Mass Spectrometry (UHPLC-MS)-Based Metabolomics Approaches. Metabolites 2019; 9:E60. [PMID: 30925828 PMCID: PMC6523100 DOI: 10.3390/metabo9040060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/18/2019] [Accepted: 03/25/2019] [Indexed: 01/13/2023] Open
Abstract
Begomoviruses, such as the Tomato curly stunt virus (ToCSV), pose serious economic consequences due to severe crop losses. Therefore, the development and screening of possible resistance markers is imperative. While some tomato cultivars exhibit differential resistance to different begomovirus species, in most cases, the mechanism of resistance is not fully understood. In this study, the response of two near-isogenic lines of tomato (Solanum lycopersicum), differing in resistance against whitefly-mediated ToCSV infection were investigated using untargeted ultra-high-performance liquid chromatography coupled to mass spectrometry (UHPLC-MS)-based metabolomics. The responses of the two lines were deciphered using multivariate statistics models. Principal component analysis (PCA) scores plots from various time intervals revealed that the resistant line responded more rapidly with changes to the metabolome than the susceptible counterpart. Moreover, the metabolic reprogramming of chemically diverse metabolites that span a range of metabolic pathways was associated with the defence response. Biomarkers primarily included hydroxycinnamic acids conjugated to quinic acid, galactaric acid, and glucose. Minor constituents included benzenoids, flavonoids, and steroidal glycoalkaloids. Interestingly, when reduced to the level of metabolites, the phytochemistry of the infected plants' responses was very similar. However, the resistant phenotype was strongly associated with the hydroxycinnamic acid derivatives deployed in response to infection. In addition, the resistant line was able to mount a stronger and quicker response.
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Affiliation(s)
- Leandri T Rossouw
- Centre for Plant Metabolomics Research, Department of Biochemistry, University of Johannesburg, Auckland Park 2006, South Africa.
| | - Ntakadzeni E Madala
- Centre for Plant Metabolomics Research, Department of Biochemistry, University of Johannesburg, Auckland Park 2006, South Africa.
| | - Fidele Tugizimana
- Centre for Plant Metabolomics Research, Department of Biochemistry, University of Johannesburg, Auckland Park 2006, South Africa.
| | - Paul A Steenkamp
- Centre for Plant Metabolomics Research, Department of Biochemistry, University of Johannesburg, Auckland Park 2006, South Africa.
| | - Lindy L Esterhuizen
- Centre for Plant Metabolomics Research, Department of Biochemistry, University of Johannesburg, Auckland Park 2006, South Africa.
| | - Ian A Dubery
- Centre for Plant Metabolomics Research, Department of Biochemistry, University of Johannesburg, Auckland Park 2006, South Africa.
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Kiełkiewicz M, Barczak-Brzyżek A, Karpińska B, Filipecki M. Unravelling the Complexity of Plant Defense Induced by a Simultaneous and Sequential Mite and Aphid Infestation. Int J Mol Sci 2019; 20:E806. [PMID: 30781828 PMCID: PMC6412847 DOI: 10.3390/ijms20040806] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/05/2019] [Accepted: 02/10/2019] [Indexed: 12/14/2022] Open
Abstract
In natural and agricultural conditions, plants are attacked by a community of herbivores, including aphids and mites. The green peach aphid and the two-spotted spider mite, both economically important pests, may share the same plant. Therefore, an important question arises as to how plants integrate signals induced by dual herbivore attack into the optimal defensive response. We showed that regardless of which attacker was first, 24 h of infestation allowed for efficient priming of the Arabidopsis defense, which decreased the reproductive performance of one of the subsequent herbivores. The expression analysis of several defense-related genes demonstrated that the individual impact of mite and aphid feeding spread systematically, engaging the salicylic acid (SA) and jasmonic acid (JA) signaling pathways. Interestingly, aphids feeding on the systemic leaf of the plant simultaneously attacked by mites, efficiently reduced the magnitude of the SA and JA activation, whereas mites feeding remotely increased the aphid-induced SA marker gene expression, while the JA-dependent response was completely abolished. We also indicated that the weaker performance of mites and aphids in double infestation essays might be attributed to aliphatic glucosinolates. Our report is the first to provide molecular data on signaling cross-talk when representatives of two distinct taxonomical classes within the phylum Arthropoda co-infest the same plant.
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Affiliation(s)
- Małgorzata Kiełkiewicz
- Department of Applied Entomology, Warsaw University of Life Sciences-SGGW, 02-776 Warsaw, Poland.
| | - Anna Barczak-Brzyżek
- Department of Plant Genetics, Breeding and Biotechnology, Warsaw University of Life Sciences-SGGW, 02-776 Warsaw, Poland.
| | - Barbara Karpińska
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, UK.
| | - Marcin Filipecki
- Department of Plant Genetics, Breeding and Biotechnology, Warsaw University of Life Sciences-SGGW, 02-776 Warsaw, Poland.
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Food decisions of an omnivorous thrips are independent from the indirect effects of jasmonate-inducible plant defences on prey quality. Sci Rep 2019; 9:1727. [PMID: 30741999 PMCID: PMC6370905 DOI: 10.1038/s41598-018-38463-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 12/28/2018] [Indexed: 11/25/2022] Open
Abstract
Plant defensive substances can affect the quality of herbivores as prey for predators either directly or indirectly. Directly when the prey has become toxic since it ingested toxic plant material and indirectly when these defences have affected the size and/or nutritional value (both quality parameters) of prey or their abundance. To disentangle direct and indirect effects of JA-defences on prey quality for predators, we used larvae of the omnivorous thrips Frankliniella occidentalis because these are not directly affected by the jasmonate-(JA)-regulated defences of tomato. We offered these thrips larvae the eggs of spider mites (Tetranychus urticae or T. evansi) that had been feeding from either normal tomato plants, JA-impaired plants, or plants treated with JA to artificially boost defences and assessed their performance. Thrips development and survival was reduced on the diet of T. evansi eggs relative to the diet of T. urticae eggs yet these effects were independent from the absence/presence of JA-defences. This indicates that the detrimental effects of tomato JA-defences on herbivores not necessarily also affects their quality as prey.
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