date: 2017-03-22T09:23:31Z pdf:PDFVersion: 1.5 pdf:docinfo:title: Independent Effects of a Herbivore?s Bacterial Symbionts on Its Performance and Induced Plant Defences xmp:CreatorTool: LaTeX with hyperref package access_permission:can_print_degraded: true subject: It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant?s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant?s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly. dc:format: application/pdf; version=1.5 pdf:docinfo:creator_tool: LaTeX with hyperref package access_permission:fill_in_form: true pdf:encrypted: false dc:title: Independent Effects of a Herbivore?s Bacterial Symbionts on Its Performance and Induced Plant Defences modified: 2017-03-22T09:23:31Z cp:subject: It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant?s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant?s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly. pdf:docinfo:subject: It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant?s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant?s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly. pdf:docinfo:creator: Heike Staudacher, Bernardus C. J. Schimmel, Mart M. Lamers, Nicky Wybouw, Astrid T. Groot and Merijn R. Kant PTEX.Fullbanner: This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2014/W32TeX) kpathsea version 6.2.0 meta:author: Heike Staudacher, Bernardus C. J. Schimmel, Mart M. Lamers, Nicky Wybouw, Astrid T. Groot and Merijn R. Kant trapped: False meta:creation-date: 2017-01-19T01:00:36Z created: 2017-01-19T01:00:36Z access_permission:extract_for_accessibility: true Creation-Date: 2017-01-19T01:00:36Z Author: Heike Staudacher, Bernardus C. J. Schimmel, Mart M. Lamers, Nicky Wybouw, Astrid T. Groot and Merijn R. Kant producer: pdfTeX-1.40.15 pdf:docinfo:producer: pdfTeX-1.40.15 pdf:unmappedUnicodeCharsPerPage: 0 dc:description: It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant?s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant?s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly. Keywords: Tetranychus urticae; Wolbachia; Cardinium; Spiroplasma; symbiosis; plant?herbivore interaction; plant defence access_permission:modify_annotations: true dc:creator: Heike Staudacher, Bernardus C. J. Schimmel, Mart M. Lamers, Nicky Wybouw, Astrid T. Groot and Merijn R. Kant description: It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant?s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant?s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly. dcterms:created: 2017-01-19T01:00:36Z Last-Modified: 2017-03-22T09:23:31Z dcterms:modified: 2017-03-22T09:23:31Z title: Independent Effects of a Herbivore?s Bacterial Symbionts on Its Performance and Induced Plant Defences xmpMM:DocumentID: uuid:9f26b3be-4e80-4d08-a48a-05b18f08d9dd Last-Save-Date: 2017-03-22T09:23:31Z pdf:docinfo:keywords: Tetranychus urticae; Wolbachia; Cardinium; Spiroplasma; symbiosis; plant?herbivore interaction; plant defence pdf:docinfo:modified: 2017-03-22T09:23:31Z meta:save-date: 2017-03-22T09:23:31Z pdf:docinfo:custom:PTEX.Fullbanner: This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2014/W32TeX) kpathsea version 6.2.0 Content-Type: application/pdf X-Parsed-By: org.apache.tika.parser.DefaultParser creator: Heike Staudacher, Bernardus C. J. Schimmel, Mart M. Lamers, Nicky Wybouw, Astrid T. Groot and Merijn R. Kant dc:subject: Tetranychus urticae; Wolbachia; Cardinium; Spiroplasma; symbiosis; plant?herbivore interaction; plant defence access_permission:assemble_document: true xmpTPg:NPages: 26 pdf:charsPerPage: 3028 access_permission:extract_content: true access_permission:can_print: true pdf:docinfo:trapped: False meta:keyword: Tetranychus urticae; Wolbachia; Cardinium; Spiroplasma; symbiosis; plant?herbivore interaction; plant defence access_permission:can_modify: true pdf:docinfo:created: 2017-01-19T01:00:36Z