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Wan NF, Dainese M, Wang YQ, Loreau M. Cascading social-ecological benefits of biodiversity for agriculture. Curr Biol 2024; 34:R587-R603. [PMID: 38889684 DOI: 10.1016/j.cub.2024.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Cultivated species diversity can provide numerous benefits to agricultural systems. Many ecological theories have been proposed to understand the relationships between plant species diversity and trophic interactions. However, extending such theories to socioeconomic systems has been rare for agriculture. Here, we establish ten hypotheses (e.g., the natural enemy hypothesis, resource concentration hypothesis, insurance hypothesis, and aggregation hypothesis) about the relationships between cultivated species diversity (i.e., crop diversification, co-cultures of crops and domestic animals, and co-cultures of crops and edible fungi) and trophic cascades of crops, invertebrate herbivores and natural enemies in cropping systems. We then explore the socioeconomic advantages (e.g., yield, economic and environmental performance) of these trophic cascades. Finally, we propose a multi-perspective framework to promote the cascading social-ecological benefits of species diversity for agricultural sustainability. Integrating the benefits of trophic cascades into agricultural socioeconomic systems requires policies and legislation that support multi-species co-culture practices and the willingness of consumers to pay for these practices through higher prices for agricultural products.
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Affiliation(s)
- Nian-Feng Wan
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
| | - Matteo Dainese
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Yu-Quan Wang
- School of Life Sciences, Fudan University, State Key Laboratory of Genetic Engineering, Shanghai, China
| | - Michel Loreau
- Theoretical and Experimental Ecology Station, CNRS, 2 route du CNRS, 09200 Moulis, France; Institute of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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2
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Ali J, Tonğa A, Islam T, Mir S, Mukarram M, Konôpková AS, Chen R. Defense strategies and associated phytohormonal regulation in Brassica plants in response to chewing and sap-sucking insects. FRONTIERS IN PLANT SCIENCE 2024; 15:1376917. [PMID: 38645389 PMCID: PMC11026728 DOI: 10.3389/fpls.2024.1376917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/19/2024] [Indexed: 04/23/2024]
Abstract
Plants have evolved distinct defense strategies in response to a diverse range of chewing and sucking insect herbivory. While chewing insect herbivores, exemplified by caterpillars and beetles, cause visible tissue damage and induce jasmonic acid (JA)-mediated defense responses, sucking insects, such as aphids and whiteflies, delicately tap into the phloem sap and elicit salicylic acid (SA)-mediated defense responses. This review aims to highlight the specificity of defense strategies in Brassica plants and associated underlying molecular mechanisms when challenged by herbivorous insects from different feeding guilds (i.e., chewing and sucking insects). To establish such an understanding in Brassica plants, the typical defense responses were categorized into physical, chemical, and metabolic adjustments. Further, the impact of contrasting feeding patterns on Brassica is discussed in context to unique biochemical and molecular modus operandi that governs the resistance against chewing and sucking insect pests. Grasping these interactions is crucial to developing innovative and targeted pest management approaches to ensure ecosystem sustainability and Brassica productivity.
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Affiliation(s)
- Jamin Ali
- College of Plant Protection, Jilin Agricultural University, Changchun, China
- School of Life Sciences, Keele University, Newcastle-Under-Lyme, United Kingdom
| | - Adil Tonğa
- Entomology Department, Diyarbakır Plant Protection Research Institute, Diyarbakir, Türkiye
| | - Tarikul Islam
- Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh
- Department of Entomology, Rutgers University, New Brunswick, NJ, United States
| | - Sajad Mir
- Entomology Section, Sher-E-Kashmir University of Agricultural Science and Technology, Kashmir, India
| | - Mohammad Mukarram
- Food and Plant Biology Group, Department of Plant Biology, Universidad de la República, Montevideo, Uruguay
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - Alena Sliacka Konôpková
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
- Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
| | - Rizhao Chen
- College of Plant Protection, Jilin Agricultural University, Changchun, China
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Montesinos Á, Sacristán S, Del Prado-Polonio P, Arnaiz A, Díaz-González S, Diaz I, Santamaria ME. Contrasting plant transcriptome responses between a pierce-sucking and a chewing herbivore go beyond the infestation site. BMC PLANT BIOLOGY 2024; 24:120. [PMID: 38369495 PMCID: PMC10875829 DOI: 10.1186/s12870-024-04806-1] [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: 11/30/2023] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Plants have acquired a repertoire of mechanisms to combat biotic stressors, which may vary depending on the feeding strategies of herbivores and the plant species. Hormonal regulation crucially modulates this malleable defense response. Jasmonic acid (JA) and salicylic acid (SA) stand out as pivotal regulators of defense, while other hormones like abscisic acid (ABA), ethylene (ET), gibberellic acid (GA) or auxin also play a role in modulating plant-pest interactions. The plant defense response has been described to elicit effects in distal tissues, whereby aboveground herbivory can influence belowground response, and vice versa. This impact on distal tissues may be contingent upon the feeding guild, even affecting both the recovery of infested tissues and those that have not suffered active infestation. RESULTS To study how phytophagous with distinct feeding strategies may differently trigger the plant defense response during and after infestation in both infested and distal tissues, Arabidopsis thaliana L. rosettes were infested separately with the chewing herbivore Pieris brassicae L. and the piercing-sucker Tetranychus urticae Koch. Moderate infestation conditions were selected for both pests, though no quantitative control of damage levels was carried out. Feeding mode did distinctly influence the transcriptomic response of the plant under these conditions. Though overall affected processes were similar under either infestation, their magnitude differed significantly. Plants infested with P. brassicae exhibited a short-term response, involving stress-related genes, JA and ABA regulation and suppressing growth-related genes. In contrast, T. urticae elicited a longer transcriptomic response in plants, albeit with a lower degree of differential expression, in particular influencing SA regulation. These distinct defense responses transcended beyond infestation and through the roots, where hormonal response, flavonoid regulation or cell wall reorganization were differentially affected. CONCLUSION These outcomes confirm that the existent divergent transcriptomic responses elicited by herbivores employing distinct feeding strategies possess the capacity to extend beyond infestation and even affect tissues that have not been directly infested. This remarks the importance of considering the entire plant's response to localized biotic stresses.
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Affiliation(s)
- Álvaro Montesinos
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
- Universidad de Zaragoza, Calle Pedro Cerbuna, 12, Zaragoza, 50009, Spain
| | - Soledad Sacristán
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Palmira Del Prado-Polonio
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
| | - Ana Arnaiz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, Burgos, 09001, Spain
| | - Sandra Díaz-González
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
| | - Isabel Diaz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, 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 (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC) Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain.
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain.
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Nye DG, Irigoyen ML, Perez-Fons L, Bohorquez-Chaux A, Hur M, Medina-Yerena D, Lopez-Lavalle LAB, Fraser PD, Walling LL. Integrative transcriptomics reveals association of abscisic acid and lignin pathways with cassava whitefly resistance. BMC PLANT BIOLOGY 2023; 23:657. [PMID: 38124051 PMCID: PMC10731783 DOI: 10.1186/s12870-023-04607-y] [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: 11/11/2022] [Accepted: 11/14/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Whiteflies are a global threat to crop yields, including the African subsistence crop cassava (Manihot esculenta). Outbreaks of superabundant whitefly populations throughout Eastern and Central Africa in recent years have dramatically increased the pressures of whitefly feeding and virus transmission on cassava. Whitefly-transmitted viral diseases threaten the food security of hundreds of millions of African farmers, highlighting the need for developing and deploying whitefly-resistant cassava. However, plant resistance to whiteflies remains largely poorly characterized at the genetic and molecular levels. Knowledge of cassava-defense programs also remains incomplete, limiting characterization of whitefly-resistance mechanisms. To better understand the genetic basis of whitefly resistance in cassava, we define the defense hormone- and Aleurotrachelus socialis (whitefly)-responsive transcriptome of whitefly-susceptible (COL2246) and whitefly-resistant (ECU72) cassava using RNA-seq. For broader comparison, hormone-responsive transcriptomes of Arabidopsis thaliana were also generated. RESULTS Whitefly infestation, salicylic acid (SA), jasmonic acid (JA), ethylene (ET), and abscisic acid (ABA) transcriptome responses of ECU72 and COL2246 were defined and analyzed. Strikingly, SA responses were largely reciprocal between the two cassava genotypes and we suggest candidate regulators. While susceptibility was associated with SA in COL2246, resistance to whitefly in ECU72 was associated with ABA, with SA-ABA antagonism observed. This was evidenced by expression of genes within the SA and ABA pathways and hormone levels during A. socialis infestation. Gene-enrichment analyses of whitefly- and hormone-responsive genes suggest the importance of fast-acting cell wall defenses (e.g., elicitor recognition, lignin biosynthesis) during early infestation stages in whitefly-resistant ECU72. A surge of ineffective immune and SA responses characterized the whitefly-susceptible COL2246's response to late-stage nymphs. Lastly, in comparison with the model plant Arabidopsis, cassava's hormone-responsive genes showed striking divergence in expression. CONCLUSIONS This study provides the first characterization of cassava's global transcriptome responses to whitefly infestation and defense hormone treatment. Our analyses of ECU72 and COL2246 uncovered possible whitefly resistance/susceptibility mechanisms in cassava. Comparative analysis of cassava and Arabidopsis demonstrated that defense programs in Arabidopsis may not always mirror those in crop species. More broadly, our hormone-responsive transcriptomes will also provide a baseline for the cassava community to better understand global responses to other yield-limiting pests/pathogens.
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Affiliation(s)
- Danielle G Nye
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| | - Maria L Irigoyen
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| | - Laura Perez-Fons
- Department of Biological Sciences, Royal Holloway University of London, Egham, UK
| | - Adriana Bohorquez-Chaux
- Alliance Bioversity International and International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - Manhoi Hur
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
- Institute of Integrative Genome Biology, University of California, Riverside, CA, 92521, USA
| | - Diana Medina-Yerena
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| | - Luis Augusto Becerra Lopez-Lavalle
- Alliance Bioversity International and International Center for Tropical Agriculture (CIAT), Cali, Colombia
- Present Address: International Center of Biosaline Agriculture, Dubai, United Arab Emirates
| | - Paul D Fraser
- Department of Biological Sciences, Royal Holloway University of London, Egham, UK
| | - Linda L Walling
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA.
- Institute of Integrative Genome Biology, University of California, Riverside, CA, 92521, USA.
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5
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Kundu P, Grover S, Perez A, Raya Vaca JD, Kariyat R, Louis J. Sorghum defense responses to sequential attack by insect herbivores of different feeding guilds. PLANTA 2023; 258:35. [PMID: 37389680 DOI: 10.1007/s00425-023-04195-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/25/2023] [Indexed: 07/01/2023]
Abstract
MAIN CONCLUSION Insect herbivores of different feeding guilds induced sorghum defenses through differential mechanisms, regardless of the order of herbivore arrival on sorghum plants. Sorghum, one of the world's most important cereal crops, suffers severe yield losses due to attack by insects of different feeding guilds. In most instances, the emergence of these pests are not secluded incidents and are followed by another or can also co-infest host plants. Sugarcane aphid (SCA) and fall armyworm (FAW) are the two most important destructive pests of sorghum, which belongs to sap-sucking and chewing feeding guilds, respectively. While the order of the herbivore arriving on the plants has been found to alter the defense response to subsequent herbivores, this is seldom studied with herbivores from different feeding guilds. In this study, we investigated the effects of sequential herbivory of FAW and SCA on sorghum defense responses and their underlying mechanism(s). Sequential feeding on the sorghum RTx430 genotype by either FAW primed-SCA or SCA primed-FAW were monitored to unravel the mechanisms underlying defense priming, and its mode of action. Regardless of the order of herbivore arrival on sorghum RTx430 plants, significant defense induction was observed in the primed state compared to the non-primed condition, irrespective of their feeding guild. Additionally, gene expression and secondary metabolite analysis revealed differential modulation of the phenylpropanoid pathway upon insect attack by different feeding guilds. Our findings suggest that priming in sorghum plants upon sequential herbivory induces defense by the accumulation of the total flavonoids and lignin/salicylic acid in FAW primed-SCA and SCA primed-FAW interaction, respectively.
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Affiliation(s)
- Pritha Kundu
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Sajjan Grover
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Adryenna Perez
- Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, 78539, USA
| | - Juan D Raya Vaca
- Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, 78539, USA
| | - Rupesh Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Joe Louis
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
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Wang D, Dawadi B, Qu J, Ye J. Light-Engineering Technology for Enhancing Plant Disease Resistance. FRONTIERS IN PLANT SCIENCE 2022; 12:805614. [PMID: 35251062 PMCID: PMC8891579 DOI: 10.3389/fpls.2021.805614] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Insect vector-borne diseases are a major constraint to a wide variety of crops. Plants integrate environmental light and internal signalings to defend dual stresses both from the vector insects and vector-transmitted pathogens. In this review, we highlight a studies that demonstrate how light regulates plants deploying mechanisms against vector-borne diseases. Four major host defensive pathways involved in the host defense network against multiple biotic stresses are reviewed: innate immunity, phytohormone signaling, RNA interference, and protein degradation. The potential with light-engineering technology with light emitting diodes (LEDs) and genome engineering technology for fine-tuning crop defense and yield are also discussed.
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Affiliation(s)
- Duan Wang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Bishnu Dawadi
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Jing Qu
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China
| | - Jian Ye
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
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Yin W, Wang X, Liu H, Wang Y, van Nocker S, Tu M, Fang J, Guo J, Li Z, Wang X. Overexpression of VqWRKY31 enhances powdery mildew resistance in grapevine by promoting salicylic acid signaling and specific metabolite synthesis. HORTICULTURE RESEARCH 2022; 9:uhab064. [PMID: 35043152 PMCID: PMC8944305 DOI: 10.1093/hr/uhab064] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 10/31/2021] [Indexed: 05/11/2023]
Abstract
Powdery mildew (PM), caused by the fungal pathogen Erysiphe necator, is one of the most destructive diseases of grapevine (Vitis vinifera and other Vitis spp). Resistance to PM is an important goal for cultivar improvement, and understanding the underlying molecular mechanisms conditioning resistance is critical. Here, we report that transgenic expression of the WRKY transcription factor gene VqWRKY31 from the PM-resistant species Vitis quinquangularis conferred resistance to powdery mildew in V. vinifera through promoting salicylic acid signaling and specific metabolite synthesis. VqWRKY31 belongs to the WRKY IIb subfamily, and expression of the VqWRKY31 gene was induced in response to E. necator inoculation. Transgenic V. vinifera plants expressing VqWRKY31 were substantially less susceptible to E. necator infection, and this was associated with increased levels of salicylic acid and reactive oxygen species. Correlation analysis of transcriptomic and metabolomic data revealed that VqWRKY31 promoted expression of genes in metabolic pathways and the accumulation of many disease resistance-related metabolites, including stilbenes, flavonoids, and proanthocyanidins. In addition, results indicated that VqWRKY31 can directly bind to the promoters of two structural genes in stilbene synthesis, STS9 and STS48, and activate their expression. Based on our results, we propose a model where VqWRKY31 enhances grapevine PM resistance through activation of salicylic acid defense signaling and promotion of specific disease resistance-related metabolite synthesis. These findings can be directly exploited for molecular breeding strategies to produce PM-resistant grapevine germplasm.
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Affiliation(s)
- Wuchen Yin
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xianhang Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- College of Enology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hui Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ya Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Steve van Nocker
- Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA
| | - Mingxing Tu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jinghao Fang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Junqiang Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhi Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiping Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
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8
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Basu S, Clark RE, Bera S, Casteel CL, Crowder DW. Responses of pea plants to multiple antagonists are mediated by order of attack and phytohormone crosstalk. Mol Ecol 2021; 30:4939-4948. [PMID: 34347913 DOI: 10.1111/mec.16103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/19/2021] [Accepted: 07/28/2021] [Indexed: 11/28/2022]
Abstract
Plants are often attacked by multiple antagonists and traits of the attacking organisms and their order of arrival onto hosts may affect plant defences. However, few studies have assessed how multiple antagonists, and varying attack order, affect plant defence or nutrition. To address this, we assessed defensive and nutritional responses of Pisum sativum plants after attack by a vector herbivore (Acrythosiphon pisum), a nonvector herbivore (Sitona lineatus), and a pathogen (Pea enation mosaic virus, PEMV). We show viruliferous A. pisum induced several antipathogen plant defence signals, but these defences were inhibited by S. lineatus feeding on peas infected with PEMV. In contrast, S. lineatus feeding induced antiherbivore defence signals, and these plant defences were enhanced by PEMV. Sitona lineatus also increased abundance of plant amino acids, but only when they attacked after viruliferous A. pisum. Our results suggest that diverse communities of biotic antagonists alter defence and nutritional traits of plants through complex pathways that depend on the identity of attackers and their order of arrival onto hosts. Moreover, we show interactions among a group of biotic stressors can vary along a spectrum from antagonism to enhancement/synergism based on the identity and order of attackers, and these interactions are mediated by a multitude of phytohormone pathways.
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Affiliation(s)
- Saumik Basu
- Department of Entomology, Washington State University, Pullman, WA, USA
| | - Robert E Clark
- Department of Entomology, Washington State University, Pullman, WA, USA
| | - Sayanta Bera
- School of Integrative Plant Science, Plant Pathology and Plant-Microbe Biology Section, Cornell University, Ithaca, NY, USA
| | - Clare L Casteel
- School of Integrative Plant Science, Plant Pathology and Plant-Microbe Biology Section, Cornell University, Ithaca, NY, USA
| | - David W Crowder
- Department of Entomology, Washington State University, Pullman, WA, USA
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9
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Fernández de Bobadilla M, Bourne ME, Bloem J, Kalisvaart SN, Gort G, Dicke M, Poelman EH. Insect species richness affects plant responses to multi-herbivore attack. THE NEW PHYTOLOGIST 2021; 231:2333-2345. [PMID: 33484613 PMCID: PMC8451852 DOI: 10.1111/nph.17228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/14/2021] [Indexed: 05/05/2023]
Abstract
Plants are often attacked by multiple insect herbivores. How plants deal with an increasing richness of attackers from a single or multiple feeding guilds is poorly understood. We subjected black mustard (Brassica nigra) plants to 51 treatments representing attack by an increasing species richness (one, two or four species) of either phloem feeders, leaf chewers, or a mix of both feeding guilds when keeping total density of attackers constant and studied how this affects plant resistance to subsequent attack by caterpillars of the diamondback moth (Plutella xylostella). Increased richness in phloem-feeding attackers compromised resistance to P. xylostella. By contrast, leaf chewers induced a stronger resistance to subsequent attack by caterpillars of P. xylostella while species richness did not play a significant role for chewing herbivore induced responses. Attack by a mix of herbivores from different feeding guilds resulted in plant resistance similar to resistance levels of plants that were not previously exposed to herbivory. We conclude that B. nigra plants channel their defence responses stronger towards a feeding-guild specific response when under multi-species attack by herbivores of the same feeding guild, but integrate responses when simultaneously confronted with a mix of herbivores from different feeding guilds.
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Affiliation(s)
- Maite Fernández de Bobadilla
- Laboratory of EntomologyWageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
| | - Mitchel E. Bourne
- Laboratory of EntomologyWageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
| | - Janneke Bloem
- Laboratory of EntomologyWageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
| | - Sarah N. Kalisvaart
- Laboratory of EntomologyWageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
| | - Gerrit Gort
- Biometris, Wageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
| | - Marcel Dicke
- Laboratory of EntomologyWageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
| | - Erik H. Poelman
- Laboratory of EntomologyWageningen University and Research CentreDroevendaalsesteeg 1Wageningen6708PBthe Netherlands
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10
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Garcia A, Santamaria ME, Diaz I, Martinez M. Disentangling transcriptional responses in plant defense against arthropod herbivores. Sci Rep 2021; 11:12996. [PMID: 34155286 PMCID: PMC8217245 DOI: 10.1038/s41598-021-92468-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/03/2021] [Indexed: 01/21/2023] Open
Abstract
The success in the response of a plant to a pest depends on the regulatory networks that connect plant perception and plant response. Meta-analyses of transcriptomic responses are valuable tools to discover novel mechanisms in the plant/herbivore interplay. Considering the quantity and quality of available transcriptomic analyses, Arabidopsis thaliana was selected to test the ability of comprehensive meta-analyses to disentangle plant responses. The analysis of the transcriptomic data showed a general induction of biological processes commonly associated with the response to herbivory, like jasmonate signaling or glucosinolate biosynthesis. However, an uneven induction of many genes belonging to these biological categories was found, which was likely associated with the particularities of each specific Arabidopsis-herbivore interaction. A thorough analysis of the responses to the lepidopteran Pieris rapae and the spider mite Tetranychus urticae highlighted specificities in the perception and signaling pathways associated with the expression of receptors and transcription factors. This information was translated to a variable alteration of secondary metabolic pathways. In conclusion, transcriptomic meta-analysis has been revealed as a potent way to sort out relevant physiological processes in the plant response to herbivores. Translation of these transcriptomic-based analyses to crop species will permit a more appropriate design of biotechnological programs.
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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 Alimentaria, Madrid, Spain
| | - M Estrella Santamaria
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - Isabel Diaz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain.,Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
| | - Manuel Martinez
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain. .,Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain.
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11
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Prajapati VK, Varma M, Vadassery J. In silico identification of effector proteins from generalist herbivore Spodoptera litura. BMC Genomics 2020; 21:819. [PMID: 33225897 PMCID: PMC7681983 DOI: 10.1186/s12864-020-07196-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 10/27/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND The common cutworm, Spodoptera litura Fabricius is a leaf and fruit feeding generalist insect of the order Lepidoptera and a destructive agriculture pest. The broad host range of the herbivore is due to its ability to downregulate plant defense across different plants. The identity of Spodoptera litura released effectors that downregulate plant defense are largely unknown. The current study aims to identify genes encoding effector proteins from salivary glands of S. litura (Fab.). RESULTS Head and salivary glands of Spodoptera litura were used for de-novo transcriptome analysis and effector prediction. Eight hundred ninety-nine proteins from the head and 330 from salivary gland were identified as secretory proteins. Eight hundred eight proteins from the head and 267 from salivary gland proteins were predicted to be potential effector proteins. CONCLUSIONS This study is the first report on identification of potential effectors from Spodoptera litura salivary glands.
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Affiliation(s)
- Vinod Kumar Prajapati
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Mahendra Varma
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067 India
- Present Address-Population Ecology Group, Institute of Ecology and Evolution, Friedrich Schiller University Jena, Dornburger Straße 159, 07743 Jena, Germany
| | - Jyothilakshmi Vadassery
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067 India
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12
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Bastías DA, Martínez-Ghersa MA, Newman JA, Card SD, Mace WJ, Gundel PE. Sipha maydis sensitivity to defences of Lolium multiflorum and its endophytic fungus Epichloë occultans. PeerJ 2019; 7:e8257. [PMID: 31976166 PMCID: PMC6966988 DOI: 10.7717/peerj.8257] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/20/2019] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Plants possess a sophisticated immune system to defend from herbivores. These defence responses are regulated by plant hormones including salicylic acid (SA) and jasmonic acid (JA). Sometimes, plant defences can be complemented by the presence of symbiotic microorganisms. A remarkable example of this are grasses establishing symbiotic associations with Epichloë fungal endophytes. We studied the level of resistance provided by the grass' defence hormones, and that provided by Epichloë fungal endophytes, against an introduced herbivore aphid. These fungi protect their hosts against herbivores by producing bioactive alkaloids. We hypothesized that either the presence of fungal endophytes or the induction of the plant salicylic acid (SA) defence pathway would enhance the level of resistance of the grass to the aphid. METHODS Lolium multiflorum plants, with and without the fungal endophyte Epichloë occultans, were subjected to an exogenous application of SA followed by a challenge with the aphid, Sipha maydis. RESULTS Our results indicate that neither the presence of E. occultans nor the induction of the plant's SA pathway regulate S. maydis populations. However, endophyte-symbiotic plants may have been more tolerant to the aphid feeding because these plants produced more aboveground biomass. We suggest that this insect insensitivity could be explained by a combination between the ineffectiveness of the specific alkaloids produced by E. occultans in controlling S. maydis aphids and the capacity of this herbivore to deal with hormone-dependent defences of L. multiflorum.
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Affiliation(s)
- Daniel A. Bastías
- IFEVA, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Buenos Aires, Argentina
- Forage Science, AgResearch Limited, Grasslands Research Centre, Palmerston North, New Zealand
| | | | - Jonathan A. Newman
- Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Stuart D. Card
- Forage Science, AgResearch Limited, Grasslands Research Centre, Palmerston North, New Zealand
| | - Wade J. Mace
- Forage Science, AgResearch Limited, Grasslands Research Centre, Palmerston North, New Zealand
| | - Pedro E. Gundel
- IFEVA, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Buenos Aires, Argentina
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13
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Omega hydroxylated JA-Ile is an endogenous bioactive jasmonate that signals through the canonical jasmonate signaling pathway. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158520. [PMID: 31473347 DOI: 10.1016/j.bbalip.2019.158520] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/12/2019] [Accepted: 08/26/2019] [Indexed: 11/21/2022]
Abstract
Jasmonates are fatty acid derivatives that control several plant processes including growth, development and defense. Despite the chemical diversity of jasmonates, only jasmonoyl-L-isoleucine (JA-Ile) has been clearly characterized as the endogenous ligand of the jasmonate co-receptors (COI1-JAZs) in higher plants. Currently, it is accepted that ω-hydroxylation of JA-Ile leads to inactivation of the molecule. This study shows that ω-hydroxylated JA-Ile (12-OH-JA-Ile) retains bioactivity and signals through the canonical JA-pathway. The results suggest that 12-OH-JA-Ile differentially activates a subset of JA-Ile co-receptors that may control and/or modulate particular jasmonate dependent responses. It is proposed that after a strong immune response mediated by JA-Ile, the ω-hydroxylated form modulates JA-Ile activated processes thereby improving plant resilience.
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14
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Onkokesung N, Reichelt M, Wright LP, Phillips MA, Gershenzon J, Dicke M. The plastidial metabolite 2-C-methyl-D-erythritol-2,4-cyclodiphosphate modulates defence responses against aphids. PLANT, CELL & ENVIRONMENT 2019; 42:2309-2323. [PMID: 30786032 PMCID: PMC6850158 DOI: 10.1111/pce.13538] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/09/2019] [Accepted: 02/17/2019] [Indexed: 05/30/2023]
Abstract
Feeding by insect herbivores such as caterpillars and aphids induces plant resistance mechanisms that are mediated by the phytohormones jasmonic acid (JA) and salicylic acid (SA). These phytohormonal pathways often crosstalk. Besides phytohormones, methyl-D-erythriol-2,4-cyclodiphosphate (MEcPP), the penultimate metabolite in the methyl-D-erythritol-4-phosphate pathway, has been speculated to regulate transcription of nuclear genes in response to biotic stressors such as aphids. Here, we show that MEcPP uniquely enhances the SA pathway without attenuating the JA pathway. Arabidopsis mutant plants that accumulate high levels of MEcPP (hds3) are highly resistant to the cabbage aphid (Brevicoryne brassicae), whereas resistance to the large cabbage white caterpillar (Pieris brassicae) remains unaltered. Thus, MEcPP is a distinct signalling molecule that acts beyond phytohormonal crosstalk to induce resistance against the cabbage aphid in Arabidopsis. We dissect the molecular mechanisms of MEcPP mediating plant resistance against the aphid B. brassicae. This shows that MEcPP induces the expression of genes encoding enzymes involved in the biosynthesis of several primary and secondary metabolic pathways contributing to enhanced resistance against this aphid species. A unique ability to regulate multifaceted molecular mechanisms makes MEcPP an attractive target for metabolic engineering in Brassica crop plants to increase resistance to cabbage aphids.
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Affiliation(s)
| | - Michael Reichelt
- Department of BiochemistryMax Planck Institute for Chemical EcologyJenaGermany
| | - Louwrance P. Wright
- Department of BiochemistryMax Planck Institute for Chemical EcologyJenaGermany
| | - Michael A. Phillips
- Department of Biology and Graduate Program in Cellular and Systems BiologyUniversity of Toronto‐MississaugaMississaugaOntarioCanada
| | - Jonathan Gershenzon
- Department of BiochemistryMax Planck Institute for Chemical EcologyJenaGermany
| | - Marcel Dicke
- Laboratory of EntomologyWageningen UniversityWageningenThe Netherlands
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15
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Abstract
Diverse molecular processes regulate the interactions between plants and insect herbivores. Here, we review genes and proteins that are involved in plant-herbivore interactions and discuss how their discovery has structured the current standard model of plant-herbivore interactions. Plants perceive damage-associated and, possibly, herbivore-associated molecular patterns via receptors that activate early signaling components such as Ca2+, reactive oxygen species, and MAP kinases. Specific defense reprogramming proceeds via signaling networks that include phytohormones, secondary metabolites, and transcription factors. Local and systemic regulation of toxins, defense proteins, physical barriers, and tolerance traits protect plants against herbivores. Herbivores counteract plant defenses through biochemical defense deactivation, effector-mediated suppression of defense signaling, and chemically controlled behavioral changes. The molecular basis of plant-herbivore interactions is now well established for model systems. Expanding molecular approaches to unexplored dimensions of plant-insect interactions should be a future priority.
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Affiliation(s)
- Matthias Erb
- Institute of Plant Sciences, University of Bern, 3000 Bern, Switzerland;
| | - Philippe Reymond
- Department of Plant Molecular Biology, University of Lausanne, 1015 Lausanne, Switzerland;
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16
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Lortzing V, Oberländer J, Lortzing T, Tohge T, Steppuhn A, Kunze R, Hilker M. Insect egg deposition renders plant defence against hatching larvae more effective in a salicylic acid-dependent manner. PLANT, CELL & ENVIRONMENT 2019; 42:1019-1032. [PMID: 30252928 DOI: 10.1111/pce.13447] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 09/15/2018] [Indexed: 05/06/2023]
Abstract
Plants can improve their antiherbivore defence by taking insect egg deposition as cue of impending feeding damage. Previous studies showed that Pieris brassicae larvae feeding upon egg-deposited Brassicaceae perform worse and gain less weight than larvae on egg-free plants. We investigated how P. brassicae oviposition on Arabidopsis thaliana affects the plant's molecular and chemical responses to larvae. A transcriptome comparison of feeding-damaged leaves without and with prior oviposition revealed about 200 differently expressed genes, including enhanced expression of PR5, which is involved in salicylic acid (SA)-signalling. SA levels were induced by larval feeding to a slightly greater extent in egg-deposited than egg-free plants. The adverse effect of egg-deposited wild-type (WT) plants on larval weight was absent in an egg-deposited PR5-deficient mutant or other mutants impaired in SA-mediated signalling, that is, sid2/ics1, ald1, and pad4. In contrast, the adverse effect of egg-deposited WT plants on larvae was retained in egg-deposited npr1 and wrky70 mutants impaired further downstream in SA-signalling. Oviposition induced accumulation of flavonols in WT plants with and without feeding damage, but not in the PR5-deficient mutant. We demonstrated that egg-mediated improvement of A. thaliana's antiherbivore defence involves SA-signalling in an NPR1-independent manner and is associated with accumulation of flavonols.
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Affiliation(s)
- Vivien Lortzing
- Institute of Biology, Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany
| | - Jana Oberländer
- Institute of Biology, Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany
| | - Tobias Lortzing
- Institute of Biology, Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany
| | - Takayuki Tohge
- Max Planck Institute of Molecular Plant Physiology, Department Secondary Metabolism, Potsdam, Germany
| | - Anke Steppuhn
- Institute of Biology, Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany
| | - Reinhard Kunze
- Institute of Biology, Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany
| | - Monika Hilker
- Institute of Biology, Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany
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17
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Fabisch T, Gershenzon J, Unsicker SB. Specificity of Herbivore Defense Responses in a Woody Plant, Black Poplar (Populus nigra). J Chem Ecol 2019; 45:162-177. [PMID: 30788656 PMCID: PMC6469625 DOI: 10.1007/s10886-019-01050-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/08/2019] [Accepted: 01/21/2019] [Indexed: 11/25/2022]
Abstract
The specificity of woody plant defense responses to different attacking herbivores is poorly known. We investigated the responses of black poplar (Populus nigra) to leaf feeding by three lepidopteran species (Lymantria dispar, Laothoe populi and Amata mogadorensis) and two leaf beetle species (Phratora vulgatissima and Chrysomela populi). Of the direct defenses monitored, increases in trypsin protease inhibitor activity and the salicinoid salicin were triggered by herbivore damage, but this was not herbivore-specific. Moreover, the majority of leaf salicinoid content was present constitutively and not induced by herbivory. On the other hand, volatile emission profiles did vary among herbivore species, especially between coleopterans and lepidopterans. Monoterpenes and sesquiterpenes were induced in damaged and adjacent undamaged leaves, while the emission of green leaf volatiles, aromatic and nitrogen-containing compounds (known to attract herbivore enemies) was restricted to damaged leaves. In conclusion, indirect defenses appear to show more specific responses to attacking herbivores than direct defenses in this woody plant.
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Affiliation(s)
- Thomas Fabisch
- Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745, Jena, Germany
| | - Jonathan Gershenzon
- Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745, Jena, Germany
| | - Sybille B Unsicker
- Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Strasse 8, 07745, Jena, Germany.
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18
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Stahl E, Hilfiker O, Reymond P. Plant-arthropod interactions: who is the winner? THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:703-728. [PMID: 29160609 DOI: 10.1111/tpj.13773] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/27/2017] [Accepted: 10/31/2017] [Indexed: 05/17/2023]
Abstract
Herbivorous arthropods have interacted with plants for millions of years. During feeding they release chemical cues that allow plants to detect the attack and mount an efficient defense response. A signaling cascade triggers the expression of hundreds of genes, which encode defensive proteins and enzymes for synthesis of toxic metabolites. This direct defense is often complemented by emission of volatiles that attract beneficial parasitoids. In return, arthropods have evolved strategies to interfere with plant defenses, either by producing effectors to inhibit detection and downstream signaling steps, or by adapting to their detrimental effect. In this review, we address the current knowledge on the molecular and chemical dialog between plants and herbivores, with an emphasis on co-evolutionary aspects.
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Affiliation(s)
- Elia Stahl
- Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015, Lausanne, Switzerland
| | - Olivier Hilfiker
- Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015, Lausanne, Switzerland
| | - Philippe Reymond
- Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015, Lausanne, Switzerland
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19
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Xiao Z, Wang X, Koricheva J, Kergunteuil A, Le Bayon R, Liu M, Hu F, Rasmann S. Earthworms affect plant growth and resistance against herbivores: A meta‐analysis. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12969] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhenggao Xiao
- Soil Ecology LabCollege of Resources and Environmental SciencesNanjing Agricultural University Nanjing China
- Institute of BiologyUniversity of Neuchâtel Neuchatel Switzerland
| | - Xie Wang
- Soil and Fertilizer Research InstituteSichuan Academy of Agricultural Sciences Chengdu China
| | - Julia Koricheva
- School of Biological SciencesRoyal Holloway University of London Egham UK
| | - Alan Kergunteuil
- Institute of BiologyUniversity of Neuchâtel Neuchatel Switzerland
| | | | - Manqiang Liu
- Soil Ecology LabCollege of Resources and Environmental SciencesNanjing Agricultural University Nanjing China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization Nanjing China
| | - Feng Hu
- Soil Ecology LabCollege of Resources and Environmental SciencesNanjing Agricultural University Nanjing China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization Nanjing China
| | - Sergio Rasmann
- Institute of BiologyUniversity of Neuchâtel Neuchatel Switzerland
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20
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Bonnet C, Lassueur S, Ponzio C, Gols R, Dicke M, Reymond P. Combined biotic stresses trigger similar transcriptomic responses but contrasting resistance against a chewing herbivore in Brassica nigra. BMC PLANT BIOLOGY 2017; 17:127. [PMID: 28716054 PMCID: PMC5513356 DOI: 10.1186/s12870-017-1074-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 07/10/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND In nature, plants are frequently exposed to simultaneous biotic stresses that activate distinct and often antagonistic defense signaling pathways. How plants integrate this information and whether they prioritize one stress over the other is not well understood. RESULTS We investigated the transcriptome signature of the wild annual crucifer, Brassica nigra, in response to eggs and caterpillars of Pieris brassicae butterflies, Brevicoryne brassicae aphids and the bacterial phytopathogen Xanthomonas campestris pv. raphani (Xcr). Pretreatment with egg extract, aphids, or Xcr had a weak impact on the subsequent transcriptome profile of plants challenged with caterpillars, suggesting that the second stress dominates the transcriptional response. Nevertheless, P. brassicae larval performance was strongly affected by egg extract or Xcr pretreatment and depended on the site where the initial stress was applied. Although egg extract and Xcr pretreatments inhibited insect-induced defense gene expression, suggesting salicylic acid (SA)/jasmonic acid (JA) pathway cross talk, this was not strictly correlated with larval performance. CONCLUSION These results emphasize the need to better integrate plant responses at different levels of biological organization and to consider localized effects in order to predict the consequence of multiple stresses on plant resistance.
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Affiliation(s)
- Christelle Bonnet
- Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015, Lausanne, Switzerland
| | - Steve Lassueur
- Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015, Lausanne, Switzerland
| | - Camille Ponzio
- Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Rieta Gols
- Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Philippe Reymond
- Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015, Lausanne, Switzerland.
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21
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Züst T, Agrawal AA. Trade-Offs Between Plant Growth and Defense Against Insect Herbivory: An Emerging Mechanistic Synthesis. ANNUAL REVIEW OF PLANT BIOLOGY 2017; 68:513-534. [PMID: 28142282 DOI: 10.1146/annurev-arplant-042916-040856] [Citation(s) in RCA: 239] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Costs of defense are central to our understanding of interactions between organisms and their environment, and defensive phenotypes of plants have long been considered to be constrained by trade-offs that reflect the allocation of limiting resources. Recent advances in uncovering signal transduction networks have revealed that defense trade-offs are often the result of regulatory "decisions" by the plant, enabling it to fine-tune its phenotype in response to diverse environmental challenges. We place these results in the context of classic studies in ecology and evolutionary biology, and propose a unifying framework for growth-defense trade-offs as a means to study the plant's allocation of limiting resources. Pervasive physiological costs constrain the upper limit to growth and defense traits, but the diversity of selective pressures on plants often favors negative correlations at intermediate trait levels. Despite the ubiquity of underlying costs of defense, the current challenge is using physiological and molecular approaches to predict the conditions where they manifest as detectable trade-offs.
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Affiliation(s)
- Tobias Züst
- Institute of Plant Sciences, University of Bern, 3013 Bern, Switzerland;
| | - Anurag A Agrawal
- Department of Ecology and Evolutionary Biology and Department of Entomology, Cornell University, Ithaca, New York 14853;
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22
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Kroes A, Broekgaarden C, Castellanos Uribe M, May S, van Loon JJA, Dicke M. Brevicoryne brassicae aphids interfere with transcriptome responses of Arabidopsis thaliana to feeding by Plutella xylostella caterpillars in a density-dependent manner. Oecologia 2016; 183:107-120. [PMID: 27771762 PMCID: PMC5239811 DOI: 10.1007/s00442-016-3758-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 10/16/2016] [Indexed: 01/09/2023]
Abstract
Plants are commonly attacked by multiple herbivorous species. Yet, little is known about transcriptional patterns underlying plant responses to multiple insect attackers feeding simultaneously. Here, we assessed transcriptomic responses of Arabidopsis thaliana plants to simultaneous feeding by Plutella xylostella caterpillars and Brevicoryne brassicae aphids in comparison to plants infested by P. xylostella caterpillars alone, using microarray analysis. We particularly investigated how aphid feeding interferes with the transcriptomic response to P. xylostella caterpillars and whether this interference is dependent on aphid density and time since aphid attack. Various JA-responsive genes were up-regulated in response to feeding by P. xylostella caterpillars. The additional presence of aphids, both at low and high densities, clearly affected the transcriptional plant response to caterpillars. Interestingly, some important modulators of plant defense signalling, including WRKY transcription factor genes and ABA-dependent genes, were differentially induced in response to simultaneous aphid feeding at low or high density compared with responses to P. xylostella caterpillars feeding alone. Furthermore, aphids affected the P. xylostella-induced transcriptomic response in a density-dependent manner, which caused an acceleration in plant response against dual insect attack at high aphid density compared to dual insect attack at low aphid density. In conclusion, our study provides evidence that aphids influence the caterpillar-induced transcriptional response of A. thaliana in a density-dependent manner. It highlights the importance of addressing insect density to understand how plant responses to single attackers interfere with responses to other attackers and thus underlines the importance of the dynamics of transcriptional plant responses to multiple herbivory.
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Affiliation(s)
- Anneke Kroes
- Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands.
| | - Colette Broekgaarden
- Plant-Microbe Interactions, Department of Biology, Faculty of Science, Utrecht University, 3508 TB, Utrecht, The Netherlands
| | - Marcos Castellanos Uribe
- Nottingham Arabidopsis Stock Centre, University of Nottingham, School of Biosciences, Loughborough, LE12 5RD, UK
| | - Sean May
- Nottingham Arabidopsis Stock Centre, University of Nottingham, School of Biosciences, Loughborough, LE12 5RD, UK
| | - Joop J A van Loon
- Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
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