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Srinivasan TS, Premachandran K, Clinton PX. Bacterial microbiome associated with cigarette beetle Lasioderma serricorne (F.) and its microbial plasticity in relation to diet sources. PLoS One 2024; 19:e0289215. [PMID: 38241343 PMCID: PMC10798513 DOI: 10.1371/journal.pone.0289215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 07/14/2023] [Indexed: 01/21/2024] Open
Abstract
Insect-microbial symbiosis contributes positively to the physiology of the insect and diet is considered as one important factor determining microbial symbiosis. In this study, we have characterized the microbiota of cigarette beetle, Lasioderma serricorne (Fabricius) on different diets and phases. The beetles were reared on different diet sources (exposed phase) for six generations and were reverted to their natal source (reverted phase) and further maintained for six more generations. The bacterial diversity and richness were higher in the exposed phase and once reverted to the natal source, the microbial abundance has re-assembled according to the natal diet source. There was re-assemblage of microbial composition in accordance to the diet and the bacterial cells are able to establish and proliferate on reverting to their natal source. The bacterial composition of the beetle was mainly dynamic and not transient where the bacterial cells were maintained at low abundance and were re-established according to the diet source. Overall, we found that the microbiota of cigarette beetle to be dynamic and bacterial composition to re-assemble in a diet-specific manner. The study provides insights on diet associated microbial plasticity of cigarette beetle and a further comprehensive understanding on mechanisms involved in microbial plasticity will help develop novel pest management strategies for this invasive insect pest.
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Affiliation(s)
- Thanga Suja Srinivasan
- Centre for Climate Change Studies, International Research Centre, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Krishnamanikumar Premachandran
- Centre for Climate Change Studies, International Research Centre, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Paul X. Clinton
- Centre for Climate Change Studies, International Research Centre, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
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Gao HH, Zhao S, Wang RJ, Qin DY, Chen P, Zhang AS, Zhuang QY, Zhai YF, Zhou XH. Gut bacterium promotes host fitness in special ecological niche by affecting sugar metabolism in Drosophila suzukii. INSECT SCIENCE 2023; 30:1713-1733. [PMID: 36810869 DOI: 10.1111/1744-7917.13189] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
As an important fruit pest of global significance, Drosophila suzukii occupies a special ecological niche, with the characteristics of high sugar and low protein contents. This niche differs from those occupied by other fruit-damaging Drosophila species. Gut bacteria substantially impact the physiology and ecology of insects. However, the contribution of gut microbes to the fitness of D. suzukii in their special ecological niche remains unclear. In this study, the effect of Klebsiella oxytoca on the development of D. suzukii was examined at physiological and molecular levels. The results showed that, after the removal of gut microbiota, the survival rate and longevity of axenic D. suzukii decreased significantly. Reintroduction of K. oxytoca to the midgut of D. suzukii advanced the development level of D. suzukii. The differentially expressed genes and metabolites between axenic and K. oxytoca-reintroduced D. suzukii were enriched in the pathways of carbohydrate metabolism. This advancement was achieved through an increased glycolysis rate and the regulation of the transcript level of key genes in the glycolysis/gluconeogenesis pathway. Klebsiella oxytoca is likely to play an important role in increasing host fitness in their high-sugar ecological niche by stimulating the glycolysis/gluconeogenesis pathway. As a protein source, bacteria can also provide direct nutrition for D. suzukii, which depends on the quantity or biomass of K. oxytoca. This result may provide a new target for controlling D. suzukii by inhibiting sugar metabolism through eliminating the effect of K. oxytoca and thus disrupting the balance of gut microbial communities.
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Affiliation(s)
- Huan-Huan Gao
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Academy of Grape, Jinan, China
| | - Shan Zhao
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Rui-Juan Wang
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Dong-Yun Qin
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Peng Chen
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - An-Sheng Zhang
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Qian-Ying Zhuang
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yi-Fan Zhai
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xian-Hong Zhou
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
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Akter H, Fanson BG, Inskeep J, Rempoulakis P. Raspberry ketone feeding makes Queensland fruit fly, Bactrocera tryoni (Froggatt), more vulnerable to desiccation but not starvation. PEST MANAGEMENT SCIENCE 2023; 79:4858-4867. [PMID: 37507354 DOI: 10.1002/ps.7687] [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: 04/11/2023] [Revised: 06/26/2023] [Accepted: 07/29/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Queensland fruit fly (Qfly) males exhibit accelerated sexual maturation when their diet is supplemented with raspberry ketone (RK) for 48 h following emergence, which is beneficial for sterile insect technique operation. The present study tests whether RK supplementation makes Qfly more vulnerable to starvation or desiccation. RESULTS Flies were fed for 48 h with a yeast hydrolysate and sugar diet (1:3) that contained 0% RK (control), 1.25% RK (low dose) or 5% RK (high dose) to test subsequent vulnerability to starvation and desiccation. RK feeding decreased body weight and water content in males and increased lipid levels in both sexes before exposure to any stress treatment. Under nutritional stress, flies fed the low RK dose, but not the high RK dose, had higher survival than controls. Under desiccation stress, flies fed both the low and high RK doses had lower survival than the controls. Body weight, water content and lipid reserves at death were all affected by RK dose when under nutritional stress, but not when under desiccation stress. In the absence of stress, body weight at death was higher than controls in flies provided with the high RK dose and lipids were lower than controls in flies provided with the low RK dose. CONCLUSION Feeding with RK makes Qflies more vulnerable to desiccation but not starvation. In most conditions, it is expected that the disadvantage of increased desiccation vulnerability would be outweighed by the benefits of accelerated sexual maturation in RK-fed young adult Qflies. © 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)
- Humayra Akter
- Applied BioSciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Benjamin G Fanson
- Arthur Rylah Institute for Environmental Research, Department of Energy, Environment, and Climate Action, Heidelberg, Melbourne, Victoria, Australia
| | - Jess Inskeep
- Applied BioSciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Polychronis Rempoulakis
- NSW DPI, Central Coast Primary Industries Centre, University of Newcastle Ourimbah Campus, Ourimbah, New South Wales, Australia
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Hafsi A, Delatte H. Enterobactereaceae symbiont as facilitators of biological invasion: review on Tephritidae fruit flies. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02960-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ochoa-Sánchez M, Cerqueda-García D, Moya A, Ibarra-Laclette E, Altúzar-Molina A, Desgarennes D, Aluja M. Bitter friends are not always toxic: The loss of acetic acid bacteria and the absence of Komagataeibacter in the gut microbiota of the polyphagous fly Anastrepha ludens could inhibit its development in Psidium guajava in contrast to A. striata and A. fraterculus that flourish in this host. Front Microbiol 2022; 13:979817. [PMID: 36246214 PMCID: PMC9554433 DOI: 10.3389/fmicb.2022.979817] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
The gut microbiota is key for the homeostasis of many phytophagous insects, but there are few studies comparing its role on host use by stenophagous or polyphagous frugivores. Guava (Psidium guajava) is a fruit infested in nature by the tephritids Anastrepha striata and A. fraterculus. In contrast, the extremely polyphagous A. ludens infests guava only under artificial conditions, but unlike A. striata and the Mexican A. fraterculus, it infests bitter oranges (Citrus x aurantium). We used these models to analyze whether the gut microbiota could explain the differences in host use observed in these flies. We compared the gut microbiota of the larvae of the three species when they developed in guava and the microbiota of the fruit pulp larvae fed on. We also compared the gut microbiota of A. ludens developing in C. x aurantium with the pulp microbiota of this widely used host. The three flies modified the composition of the host pulp microbiota (i.e., pulp the larvae fed on). We observed a depletion of Acetic Acid Bacteria (AAB) associated with a deleterious phenotype in A. ludens when infesting P. guajava. In contrast, the ability of A. striata and A. fraterculus to infest this fruit is likely associated to a symbiotic interaction with species of the Komagataeibacter genus, which are known to degrade a wide spectrum of tannins and polyphenols. The three flies establish genera specific symbiotic associations with AABs. In the case of A. ludens, the association is with Gluconobacter and Acetobacter, but importantly, it cannot be colonized by Komagataeibacter, a factor likely inhibiting its development in guava.
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Affiliation(s)
- Manuel Ochoa-Sánchez
- Red de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico Biomimic, Instituto de Ecología, A.C., Xalapa, Mexico
| | - Daniel Cerqueda-García
- Red de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico Biomimic, Instituto de Ecología, A.C., Xalapa, Mexico
- *Correspondence: Daniel Cerqueda-García,
| | - Andrés Moya
- Instituto de Biología Integrativa de Sistemas (I2SysBio), Universidad de Valencia and Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
- Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Valencia, Spain
| | - Enrique Ibarra-Laclette
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico Biomimic, Instituto de Ecología, A.C., Xalapa, Mexico
| | - Alma Altúzar-Molina
- Red de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico Biomimic, Instituto de Ecología, A.C., Xalapa, Mexico
| | - Damaris Desgarennes
- Red de Biodiversidad y Sistemática, Clúster Científico y Tecnológico Biomimic, Instituto de Ecología, A.C., Xalapa, Mexico
| | - Martín Aluja
- Red de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico Biomimic, Instituto de Ecología, A.C., Xalapa, Mexico
- Martín Aluja,
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Hendrycks W, Delatte H, Moquet L, Bourtzis K, Mullens N, De Meyer M, Backeljau T, Virgilio M. Eating eggplants as a cucurbit feeder: Dietary shifts affect the gut microbiome of the melon fly Zeugodacus cucurbitae (Diptera, Tephritidae). Microbiologyopen 2022; 11:e1307. [PMID: 36031958 PMCID: PMC9380402 DOI: 10.1002/mbo3.1307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/09/2022] [Accepted: 07/09/2022] [Indexed: 11/10/2022] Open
Abstract
While contemporary changes in feeding preferences have been documented in phytophagous insects, the mechanisms behind these processes remain to be fully clarified. In this context, the insect gut microbiome plays a central role in adaptation to novel host plants. The cucurbit frugivorous fruit fly Zeugodacus cucurbitae (Diptera, Tephritidae) has occasionally been reported on "unconventional" host plants from different families, including Solanaceae. In this study, we focus on wild parental (F0 ) adults and semiwild first filial (F1 ) larvae of Z. cucurbitae from multiple sites in La Réunion and explore how the gut microbiome composition changes when this fly is feeding on a noncucurbit host (Solanum melongena). Our analyses show nonobvious gut microbiome responses following the F0 -F1 host shift and the importance of not just diet but also local effects, which heavily affected the diversity and composition of microbiomes. We identified the main bacterial genera responsible for differences between treatments. These data further stress the importance of a careful approach when drawing general conclusions based on laboratory populations or inadequately replicated field samples.
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Affiliation(s)
- Wouter Hendrycks
- Department of Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium.,Evolutionary Ecology Group, Department of Biology, University of Antwerp, Wilrijk, Belgium
| | | | - Laura Moquet
- UMR PVBMT, CIRAD, Saint-Pierre, La Réunion, France
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Vienna, Austria
| | - Nele Mullens
- Department of Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium.,Evolutionary Ecology Group, Department of Biology, University of Antwerp, Wilrijk, Belgium
| | - Marc De Meyer
- Department of Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium
| | - Thierry Backeljau
- Evolutionary Ecology Group, Department of Biology, University of Antwerp, Wilrijk, Belgium.,OD Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences (RBINS), Brussels, Belgium
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Goane L, Salgueiro J, Medina Pereyra P, Arce OEA, Ruiz MJ, Nussenbaum AL, Segura DF, Vera MT. Antibiotic treatment reduces fecundity and nutrient content in females of Anastrepha fraterculus (Diptera: Tephritidae) in a diet dependent way. JOURNAL OF INSECT PHYSIOLOGY 2022; 139:104396. [PMID: 35447135 DOI: 10.1016/j.jinsphys.2022.104396] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 03/11/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
Insect microbiota, particularly, gut bacteria has recently gained especial attention in Tephritidae fruit flies, being Enterobacteriaceae the predominant bacterial group. This bacterial group has been postulated to contribute to the fitness of fruit flies through several life-history traits. Particularly in Anastrepha fraterculus, removal of Enterobacteria from male gut via antibiotic treatment impaired their mating behavior. Because the impact of gut bacteria on female reproduction was not yet addressed, we here analysed the effect of antibiotic treatment on female fecundity and nutritional status, and further explored the role of bacteria under different dietary regimes. The removal of culturable Enterobacteria from the gut of females was associated to a reduction in fecundity as well as in the protein and lipid reserves. However, fecundity reduction depended on the dietary regime; being more pronounced when females fed a poor diet. Our results suggest that nutrient reserves of females are determined, at least to some extent, by intestinal bacteria (particularly Enterobacteria). The effect of antibiotics on fecundity could be explained, thus, as a consequence of a poorer nutritional status in antibiotic-treated females compared to control females. Our results contribute to understand the interaction between gut bacteria and Tephritidae fruit flies. Considering the relevance of this insect as fruit pest and the widespread use of the sterile insect technique to control them, these findings may lead to practical applications, such as development of efficient mass rearing protocols of A. fraterculus that supplement the adult diet with probiotics.
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Affiliation(s)
- Lucía Goane
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, Tucumán, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
| | - Julieta Salgueiro
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Insectos de Importancia Agronómica, Instituto de Genética "E.A. Favret" (IGEAF), Centro de Investigación en Ciencias Veterinarias y Agronómicas- Instituto Nacional de Tecnología Agropecuaria, Instituto de Agrobiotecnología y Biología Molecular - Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | | | - Osvaldo E A Arce
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - M Josefina Ruiz
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, Tucumán, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Ana L Nussenbaum
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Insectos de Importancia Agronómica, Instituto de Genética "E.A. Favret" (IGEAF), Centro de Investigación en Ciencias Veterinarias y Agronómicas- Instituto Nacional de Tecnología Agropecuaria, Instituto de Agrobiotecnología y Biología Molecular - Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Diego F Segura
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Insectos de Importancia Agronómica, Instituto de Genética "E.A. Favret" (IGEAF), Centro de Investigación en Ciencias Veterinarias y Agronómicas- Instituto Nacional de Tecnología Agropecuaria, Instituto de Agrobiotecnología y Biología Molecular - Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - M Teresa Vera
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, Tucumán, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
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Campos C, Gomes L, Rei FT, Nobre T. Olive Fruit Fly Symbiont Population: Impact of Metamorphosis. Front Microbiol 2022; 13:868458. [PMID: 35509306 PMCID: PMC9058165 DOI: 10.3389/fmicb.2022.868458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/21/2022] [Indexed: 11/14/2022] Open
Abstract
The current symbiotic view of the organisms also calls for new approaches in the way we perceive and manage our pest species. The olive fruit fly, the most important olive tree pest, is dependent on an obligate bacterial symbiont to its larvae development in the immature fruit. This symbiont, Candidatus (Ca.) Erwinia dacicola, is prevalent throughout the host life stages, and we have shown significant changes in its numbers due to olive fruit fly metamorphosis. The olive fruit fly microbiota was analyzed through 16S metabarcoding, at three development stages: last instar larvae, pupae, and adult. Besides Ca. E. dacicola, the olive fruit flies harbor a diverse bacterial flora of which 13 operational taxonomic units (grouped in 9 genera/species) were now determined to persist excluding at metamorphosis (Corynebacterium sp., Delftia sp., Enhydrobacter sp., Kocuria sp., Micrococcus sp., Propionibacterium sp., Pseudomonas sp., Raoultella sp., and Staphylococcus sp.). These findings open a new window of opportunities in symbiosis-based pest management.
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Affiliation(s)
- Catarina Campos
- Laboratory of Molecular Biology, MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Luis Gomes
- MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Fernando T. Rei
- Laboratory of Entomology, MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Tania Nobre
- Laboratory of Entomology, MED – Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
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Field and Laboratory Efficacy of Low-Impact Commercial Products in Preventing Olive Fruit Fly, Bactrocera oleae, Infestation. INSECTS 2022; 13:insects13020213. [PMID: 35206786 PMCID: PMC8878719 DOI: 10.3390/insects13020213] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/02/2022] [Accepted: 02/18/2022] [Indexed: 02/04/2023]
Abstract
Simple Summary The adoption of sustainable methods for herbivore pest control has become mandatory in Europe, with the EU directive 128/09. Since then, stringent evaluation protocols have been applied to insecticides and several molecules (that are suspected to be unsafe for the environment or human health) have been banned. Hence, the evaluation of sustainable methods, e.g., preventive tools based on the manipulation of pest behaviour, must be considered. Using field and laboratory assays, we tested the efficacy of different products in preventing infestation of a key pest of olive orchards, the olive fruit fly Bactrocera oleae. Our findings may be useful for the development of control strategies in integrated pest management (IPM) and organic agriculture. Abstract The olive fruit fly, Bactrocera oleae, is the key pest of olive trees in several areas of the world. Given the need for the development of sustainable control methods, preventive tools, based on the manipulation of pest behaviour, must be considered. Here, under field and laboratory conditions, we tested the efficacy of different products in preventing B. oleae infestation. A field trial was conducted, from July to November 2020, in an olive orchard located in Central Italy. A table olive variety was selected and sprayed with rock powder, propolis, the mixture of both, copper oxychloride, or water (control). All treatments, except propolis, caused a reduction of B. oleae oviposition in olives, compared to the control. The mixture allowed the strongest reduction of fly infestation throughout the season, suggesting a synergistic effect. Behavioural no-choice assays were conducted to better understand the effects of treatments on B. oleae females. Compared to the control, females showed a lower preference for the central area of an arena containing an olive twig bearing two olive fruits, fully developed, but still green, treated with rock powder, plus propolis mixture. For all treatments, B. oleae showed lower oviposition events, suggesting deterrence to oviposition. Our results indicate that the tested products may have value against B. oleae, within integrated pest management (IPM) and organic agriculture.
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Akami M, Tamgue O, Ren X, Wang Y, Qi X, Martin Luther KM, Ngono Ngane RA, Niu CY. Effects of symbiotic population impairment on microbiome composition and longevity of Bactrocera dorsalis. ROYAL SOCIETY OPEN SCIENCE 2021; 8:211104. [PMID: 34804572 PMCID: PMC8580452 DOI: 10.1098/rsos.211104] [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: 06/28/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
In order to understand the role of symbionts for their insect hosts, it is customary to treat them with antibiotics or to sterilize eggs (treatments), resulting in aposymbiotic and axenic insects, respectively. Such axenic insects can then be compared with untreated controls. Fruit flies often bear complex communities which are greatly reduced by such treatments. However, the bacterial community is not completely eliminated. Here, we examine the effect of these procedures on the structure of the remaining bacterial communities in Bactrocera dorsalis (Diptera: Tephritidae) and on the insect longevity. The antibiotics (Norfloxacin and Ceftazedime) were administered to 1-day-old adult flies through sugar meal for 7 days, and eggs were surface sterilized and dechorionated to produce axenic lines. The flies were starved of protein before they were offered full diets or diets containing non-essential amino acids only. Antibiotic and egg disinfection treatments resulted in a significant reduction of the vast majority of gut bacterial populations, especially Proteobacteria, Firmicutes and Bacteroidetes. On the other hand, antibiotic allowed the persistence of Actinobacteria, Cyanobacteria and Acidobacteria populations. In untreated control flies, longevity was extended irrespective of diet quality in comparison to treated flies. Conversely, when gut bacteria were largely reduced (aposymbiotic and axenic flies), longevity was reduced in the non-essential amino acids diet treatment versus slightly improved in the presence of a protein diet. We discuss these results in an ecological-life-history perspective.
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Affiliation(s)
- Mazarin Akami
- Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
- Department of Biochemistry, Faculty of Science, University of Douala, PO Box 24157, Douala, Cameroon
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Ousman Tamgue
- Department of Biochemistry, Faculty of Science, University of Douala, PO Box 24157, Douala, Cameroon
| | - Xueming Ren
- Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Yaohui Wang
- Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Xuewei Qi
- Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | | | - Rosalie Annie Ngono Ngane
- Department of Biochemistry, Faculty of Science, University of Douala, PO Box 24157, Douala, Cameroon
| | - Chang-Ying Niu
- Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
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Boutry J, Tissot S, Ujvari B, Capp JP, Giraudeau M, Nedelcu AM, Thomas F. The evolution and ecology of benign tumors. Biochim Biophys Acta Rev Cancer 2021; 1877:188643. [PMID: 34715267 DOI: 10.1016/j.bbcan.2021.188643] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/22/2021] [Accepted: 10/23/2021] [Indexed: 12/12/2022]
Abstract
Tumors are usually classified into two main categories - benign or malignant, with much more attention being devoted to the second category given that they are usually associated with more severe health issues (i.e., metastatic cancers). Here, we argue that the mechanistic distinction between benign and malignant tumors has narrowed our understanding of neoplastic processes. This review provides the first comprehensive discussion of benign tumors in the context of their evolution and ecology as well as interactions with their hosts. We compare the genetic and epigenetic profiles, cellular activities, and the involvement of viruses in benign and malignant tumors. We also address the impact of intra-tumoral cell composition and its relationship with the tumoral microenvironment. Lastly, we explore the differences in the distribution of benign and malignant neoplasia across the tree of life and provide examples on how benign tumors can also affect individual fitness and consequently the evolutionary trajectories of populations and species. Overall, our goal is to bring attention to the non-cancerous manifestations of tumors, at different scales, and to stimulate research on the evolutionary ecology of host-tumor interactions on a broader scale. Ultimately, we suggest that a better appreciation of the differences and similarities between benign and malignant tumors is fundamental to our understanding of malignancy both at mechanistic and evolutionary levels.
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Affiliation(s)
- Justine Boutry
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France
| | - Sophie Tissot
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France
| | - Beata Ujvari
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin, University, Vic., Australia
| | - Jean-Pascal Capp
- Toulouse Biotechnology Institute, University of Toulouse, INSA, CNRS, INRAE, Toulouse, France
| | - Mathieu Giraudeau
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France; LIENSs, UMR 7266 CNRS-La Rochelle Université, 2 Rue Olympe de Gouges, 17000 La Rochelle, France
| | - Aurora M Nedelcu
- Department of Biology, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canada
| | - Frédéric Thomas
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France.
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12
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Bigiotti G, Sacchetti P, Pastorelli R, Lauzon CR, Belcari A. Bacterial symbiosis in Bactrocera oleae, an Achilles' heel for its pest control. INSECT SCIENCE 2021; 28:874-884. [PMID: 32519794 DOI: 10.1111/1744-7917.12835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Investigations on microbial symbioses in Tephritidae have increased over the past 30 years owing to the potential use of these relationships in developing new control strategies for economically important fruit flies. Bactrocera oleae (Rossi)-the olive fruit fly-is a monophagous species strictly associated with the olive tree, and among all the tephritids, its symbionts are the most investigated. The bacterium Candidatus Erwinia dacicola is the major persistent resident endosymbiont in wild B. oleae populations. Its relationship with B. oleae has been investigated since being identified in 2005. This endosymbiont is vertically transmitted through generations from the female to the egg. It exists at every developmental stage, although it is more abundant in larvae and ovipositing females, and is necessary for both larvae and adults. Studying B. oleae-Ca. E. dacicola, or other B. oleae-microbe interactions, will allow us to develop modern biological control systems for area-wide olive protection and set an example for similar programs in other important food crops. This review summarizes the information available on tephritid-microbe interactions and investigates relationships among fruit flies, bacteria and host plants; however, its focus is on B. oleae and its strict association with Ca. E. dacicola to promote environmentally friendly control strategies for area-wide pest management.
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Affiliation(s)
- Gaia Bigiotti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Italy
| | - Patrizia Sacchetti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Italy
| | - Roberta Pastorelli
- Research Centre for Agriculture and Environment, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA-AA), Florence, Italy
| | - Carol R Lauzon
- Department of Biological Sciences, California State University, Hayward, USA
| | - Antonio Belcari
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Italy
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13
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Noman MS, Shi G, Liu LJ, Li ZH. Diversity of bacteria in different life stages and their impact on the development and reproduction of Zeugodacus tau (Diptera: Tephritidae). INSECT SCIENCE 2021; 28:363-376. [PMID: 32091660 DOI: 10.1111/1744-7917.12768] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 02/08/2020] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Fruit flies usually harbor diverse communities of bacteria in their digestive systems, which are known to play a significant role in their fitness. However, little information is available on Zeugodacus tau, a polyphagous pest worldwide. This study reports the first extensive analysis of bacterial communities in different life stages and their effect on the development and reproduction of laboratory-reared Z. tau. Cultured bacteria were identified using the conventional method, and all bacteria were identified by high-throughput technologies (16S ribosomal RNA gene sequencing of V3-V4 region). A total of six bacterial phyla were identified in larvae, pupae, and male and female adult flies, which were distributed into 14 classes, 32 orders, 58 families and 96 genera. Proteobacteria was the most represented phylum in all the stages except larvae. Enterobacter, Klebsiella, Providencia, and Pseudomonas were identified by conventional and next-generation sequencing analysis in both male and female adult flies, and Enterobacter was found to be the main genus. After being fed with antibiotics from the first instar larvae, bacterial diversity changed markedly in the adult stage. Untreated flies laid eggs and needed 20 days before oviposition while the treated flies showed ovary development inhibited and were not able to lay eggs, probably due to the alteration of the microbiota. These findings provide the cornerstone for unexplored research on bacterial function in Z. tau, which will help to develop an environmentally friendly management technique for this kind of harmful insect.
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Affiliation(s)
- Md Shibly Noman
- Department of Entomology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Ge Shi
- Department of Entomology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Li-Jun Liu
- Department of Entomology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Zhi-Hong Li
- Department of Entomology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
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14
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Góngora E, Elliott KH, Whyte L. Gut microbiome is affected by inter-sexual and inter-seasonal variation in diet for thick-billed murres (Uria lomvia). Sci Rep 2021; 11:1200. [PMID: 33441848 PMCID: PMC7806582 DOI: 10.1038/s41598-020-80557-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 12/14/2020] [Indexed: 01/29/2023] Open
Abstract
The role of the gut microbiome is increasingly being recognized by health scientists and veterinarians, yet its role in wild animals remains understudied. Variations in the gut microbiome could be the result of differential diets among individuals, such as variation between sexes, across seasons, or across reproductive stages. We evaluated the hypothesis that diet alters the avian gut microbiome using stable isotope analysis (SIA) and 16S rRNA gene sequencing. We present the first description of the thick-billed murre (Uria lomvia) fecal microbiome. The murre microbiome was dominated by bacteria from the genus Catellicoccus, ubiquitous in the guts of many seabirds. Microbiome variation was explained by murre diet in terms of proportion of littoral carbon, trophic position, and sulfur isotopes, especially for the classes Actinobacteria, Bacilli, Bacteroidia, Clostridia, Alphaproteobacteria, and Gammaproteobacteria. We also observed differences in the abundance of bacterial genera such as Catellicoccus and Cetobacterium between sexes and reproductive stages. These results are in accordance with behavioural observations of changes in diet between sexes and across the reproductive season. We concluded that the observed variation in the gut microbiome may be caused by individual prey specialization and may also be reinforced by sexual and reproductive stage differences in diet.
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Affiliation(s)
- Esteban Góngora
- Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, H9X 3V9, Canada.
| | - Kyle H Elliott
- Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, H9X 3V9, Canada
| | - Lyle Whyte
- Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, H9X 3V9, Canada
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15
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Blow F, Gioti A, Goodhead IB, Kalyva M, Kampouraki A, Vontas J, Darby AC. Functional Genomics of a Symbiotic Community: Shared Traits in the Olive Fruit Fly Gut Microbiota. Genome Biol Evol 2020; 12:3778-3791. [PMID: 31830246 PMCID: PMC6999849 DOI: 10.1093/gbe/evz258] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2019] [Indexed: 12/11/2022] Open
Abstract
The olive fruit fly Bactrocera oleae is a major pest of olives worldwide and houses a specialized gut microbiota dominated by the obligate symbiont “Candidatus Erwinia dacicola.” Candidatus Erwinia dacicola is thought to supplement dietary nitrogen to the host, with only indirect evidence for this hypothesis so far. Here, we sought to investigate the contribution of the symbiosis to insect fitness and explore the ecology of the insect gut. For this purpose, we examined the composition of bacterial communities associated with Cretan olive fruit fly populations, and inspected several genomes and one transcriptome assembly. We identified, and reconstructed the genome of, a novel component of the gut microbiota, Tatumella sp. TA1, which is stably associated with Mediterranean olive fruit fly populations. We also reconstructed a number of pathways related to nitrogen assimilation and interactions with the host. The results show that, despite variation in taxa composition of the gut microbial community, core functions related to the symbiosis are maintained. Functional redundancy between different microbial taxa was observed for genes involved in urea hydrolysis. The latter is encoded in the obligate symbiont genome by a conserved urease operon, likely acquired by horizontal gene transfer, based on phylogenetic evidence. A potential underlying mechanism is the action of mobile elements, especially abundant in the Ca. E. dacicola genome. This finding, along with the identification, in the studied genomes, of extracellular surface structure components that may mediate interactions within the gut community, suggest that ongoing and past genetic exchanges between microbes may have shaped the symbiosis.
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Affiliation(s)
- Frances Blow
- Institute of Integrative Biology, University of Liverpool, United Kingdom.,Department of Entomology, Cornell University, Ithaca, New York
| | - Anastasia Gioti
- Bioinformatics Facility, Perrotis College, American Farm School, Thessaloniki, Greece
| | - Ian B Goodhead
- Institute of Integrative Biology, University of Liverpool, United Kingdom.,School of Environment and Life Sciences, University of Salford, United Kingdom
| | - Maria Kalyva
- Bioinformatics Facility, Perrotis College, American Farm School, Thessaloniki, Greece.,Department of Biology, University of Crete, Heraklion, Greece
| | - Anastasia Kampouraki
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology Hellas, Heraklion, Greece.,Pesticide Science, Agricultural University of Athens, Greece
| | - John Vontas
- Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology Hellas, Heraklion, Greece.,Pesticide Science, Agricultural University of Athens, Greece
| | - Alistair C Darby
- Institute of Integrative Biology, University of Liverpool, United Kingdom
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16
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Li Y, Schal C, Pan X, Huang Y, Zhang F. Effects of Antibiotics on the Dynamic Balance of Bacteria and Fungi in the Gut of the German Cockroach. JOURNAL OF ECONOMIC ENTOMOLOGY 2020; 113:2666-2678. [PMID: 32968762 DOI: 10.1093/jee/toaa205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Indexed: 06/11/2023]
Abstract
The German cockroach, Blattella germanica (L.) (Blattaria: Blattidae) harbored diverse microorganisms in the digestive tract, including bacteria, fungi, viruses, archaea, and protozoa. This diverse community maintains a relatively stable balance. Some bacteria have been confirmed to play crucial roles in the insect's physiology, biochemistry, and behavior. Antibiotics can effectively eliminate bacteria and disrupt the balance of gut microbiota, but the time-course of this process, the structure of the new microbial community, and the dynamics of re-assemblage of a bacterial community after antibiotic treatment have not been investigated. In the present study, antibiotic (levofloxacin and gentamicin) ingestion reduced bacterial diversity and abundance in the cockroach gut. Within 14 d of discontinuing antibiotic treatment, the number of culturable gut bacteria returned to its original level. However, the composition of the new bacterial community with greater abundance of antibiotic-resistant Enterococcus and Dysgonomonas was significantly different from the original community. Network analysis showed that antibiotic treatment made the interaction between bacteria and fungi closer and stronger in the cockroach gut during the recovery of gut microorganisms. The study on the composition change, recovery rules, and interaction dynamics between gut bacteria and fungi after antibiotic treatment are helpful to explore gut microbes' colonization and interaction with insects, which contributes to the selection of stable core gut bacteria as biological carriers of paratransgenesis for controlling Blattella germanica.
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Affiliation(s)
- Yaru Li
- Key Laboratory of Animal Resistance Biology of Shandong Province, College of Life Science, Shandong Normal University, Jinan, People of Republic of China
| | - Coby Schal
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC
| | - Xiaoyuan Pan
- Key Laboratory of Animal Resistance Biology of Shandong Province, College of Life Science, Shandong Normal University, Jinan, People of Republic of China
| | - Yanhong Huang
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Food Ferment Industry Research and Design Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250013, 41 Jiefang Road, People's Republic of China
| | - Fan Zhang
- Key Laboratory of Animal Resistance Biology of Shandong Province, College of Life Science, Shandong Normal University, Jinan, People of Republic of China
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17
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Hamden H, MSaad Guerfali M, Charaabi K, Djobbi W, Fadhl S, Mahjoubi M, Mnasri K, Najjari A, Saidi M, Chevrier C, Cherif A. Screening and selection of potential probiotic strains from the Mediterranean fruit fly (Ceratitis capitata) guts origin based on SIT application. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2020. [DOI: 10.1080/16878507.2020.1848010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- H. Hamden
- Laboratory of Biotechnology and Nuclear Technologies LR16CNSTN01, National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - Meriem MSaad Guerfali
- Laboratory of Biotechnology and Nuclear Technologies LR16CNSTN01, National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - K. Charaabi
- Laboratory of Biotechnology and Nuclear Technologies LR16CNSTN01, National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - W. Djobbi
- Laboratory of Biotechnology and Nuclear Technologies LR16CNSTN01, National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - S. Fadhl
- Laboratory of Biotechnology and Nuclear Technologies LR16CNSTN01, National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - M. Mahjoubi
- Isbst, BVBGR-LR11ES31, University of Manouba, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - K. Mnasri
- Isbst, BVBGR-LR11ES31, University of Manouba, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - A. Najjari
- Isbst, BVBGR-LR11ES31, University of Manouba, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - M. Saidi
- Laboratory of Biotechnology and Nuclear Technologies LR16CNSTN01, National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet 2020, Ariana, Tunisia
| | - C. Chevrier
- IRBI, University of Tours UMR CNRS, 7261, Tours, France
| | - A. Cherif
- Isbst, BVBGR-LR11ES31, University of Manouba, Technopole Sidi Thabet 2020, Ariana, Tunisia
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18
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Hassan B, Siddiqui JA, Xu Y. Vertically Transmitted Gut Bacteria and Nutrition Influence the Immunity and Fitness of Bactrocera dorsalis Larvae. Front Microbiol 2020; 11:596352. [PMID: 33193277 PMCID: PMC7661685 DOI: 10.3389/fmicb.2020.596352] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/12/2020] [Indexed: 01/12/2023] Open
Abstract
Symbiotic bacterial communities that colonize the digestive tract of tephritid fruit flies interact with nutrient intake to improve the flies' fitness and immunity. Some bacterial species consistently inhabit the tephritid guts and are transmitted to the next generation vertically. These species contribute significantly to some aspects of their host's physiology. In the current study, we examined the role of four vertically transmitted bacteria (Citrobacter, Enterobacter, Klebsiella, and Providencia) on the fitness parameters and immunity of Bactrocera dorsalis larvae that were fed a nutritionally manipulated diet. For this purpose, eggs were collected from axenic, gnotobiotic, and symbiotic adult flies, and larvae were reared on four types of diets in which carbohydrate and/or protein contents were reduced and then compared with larvae raised on a control diet. The diet and bacterial interactions significantly affected the fitness and immunity of B. dorsalis. Larvae of axenic flies grew slower and displayed weaker immune-based responses (PO activity, antibacterial activity, survival) than larvae of gnotobiotic and symbiotic flies. Overall, larvae reared on the low-protein diet grew slower than those reared on the control or low-carbohydrate diets. Survival, PO activity, and antibacterial activity were significantly lower in the hemolymph of larvae reared on low-protein diets. Our results also revealed that the levels of hemolymph protein, glucose, trehalose, and triglyceride in larvae from axenic flies were significantly lower than those in larvae of the symbiotic group after they fed on most of the tested diets. These results strongly infer that diet and vertically transmitted bacteria are both essential contributors to the fitness and immunity of B. dorsalis.
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Affiliation(s)
- Babar Hassan
- Laboratory of Quarantine and Invasive Pests, Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Junaid Ali Siddiqui
- Laboratory of Quarantine and Invasive Pests, Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Yijuan Xu
- Laboratory of Quarantine and Invasive Pests, Department of Entomology, South China Agricultural University, Guangzhou, China
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19
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Shukla SP, Beran F. Gut microbiota degrades toxic isothiocyanates in a flea beetle pest. Mol Ecol 2020; 29:4692-4705. [PMID: 33006166 DOI: 10.1111/mec.15657] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 09/04/2020] [Accepted: 09/22/2020] [Indexed: 11/30/2022]
Abstract
Microbial symbionts of herbivorous insects have been suggested to aid in the detoxification of plant defense compounds; however, quantitative studies on microbial contribution to plant toxin degradation remain scarce. Here, we demonstrate microbiome-mediated degradation of plant-derived toxic isothiocyanates in the cabbage stem flea beetle Psylliodes chrysocephala, a major pest of oilseed rape. Suppression of microbiota in antibiotic-fed beetles resulted in up to 11.3-fold higher levels of unmetabolized isothiocyanates compared to control beetles but did not affect other known detoxification pathways in P. chrysocephala. We characterized the microbiome of laboratory-reared and field-collected insects using 16S rRNA amplicon sequencing and isolated bacteria belonging to the three core genera Pantoea, Acinetobacter and Pseudomonas. Only Pantoea isolates rapidly degraded isothiocyanates in vitro, and restored isothiocyanate degradation in vivo when reintroduced in antibiotic-fed beetles. Pantoea was consistently present across beetle life stages and in field and lab populations. In addition, Pantoea was detected in undamaged tissues of the host plant Brassica rapa, indicating that P. chrysocephala could possibly acquire an isothiocyanate detoxifying bacterium through their diet. Our results demonstrate that both insect endogenous mechanisms and the microbiota can contribute to the detoxification of plant defense compounds and together they can better account for the fate of ingested plant metabolites.
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Affiliation(s)
- Shantanu P Shukla
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany.,Research Group Sequestration and Detoxification in Insects, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Franziska Beran
- Research Group Sequestration and Detoxification in Insects, Max Planck Institute for Chemical Ecology, Jena, Germany
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20
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Roque-Romero L, Hernández E, Aceituno-Medina M, Ventura C, Toledo J, Malo EA. Attractiveness and Sexual Competitiveness of Anastrepha obliqua Males (Diptera: Tephritidae) Fed on a Diet Enriched With Providencia rettgeri. Front Microbiol 2020; 11:1777. [PMID: 33013722 PMCID: PMC7509840 DOI: 10.3389/fmicb.2020.01777] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 07/07/2020] [Indexed: 12/05/2022] Open
Abstract
The West Indian fruit fly, Anastrepha obliqua (Macquart), is the second most important tephritid fruit fly in Mexico, infesting mango, hog plum and guava fruits. To control this pest, the Mexican government has implemented the use of the sterile insect technique (SIT), which involves the mass production, sterilization and release of flies. However, the A. obliqua laboratory males used in SIT are selected to a lesser extent by the wild females during competitiveness tests. The objective of this study was to compare the effects of males fed on fruit fly food enriched with Providencia rettgeri to those in males fed on food alone, assessing male mating competitiveness, capture of females using traps baited with males fed with the enriched diet and sex pheromone components. The results indicated that males fed with the diet enriched with P. rettgeri had increased mating competitiveness and captured more females in the field cage tests. However, no difference was observed in the proportion of volatile sex pheromone components identified during the calling of A. obliqua males. The results suggest the value of incorporating bacteria into the mass rearing technique of A. obliqua adults in order to improve the sexual competitiveness of males from the laboratory compared to wild males.
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Affiliation(s)
| | - Emilio Hernández
- Programa Moscafrut SADER-SENASICA, Subdirección de Desarrollo de Métodos, Chiapas, Mexico
| | | | - Carmen Ventura
- Programa Moscafrut SADER-SENASICA, Subdirección de Desarrollo de Métodos, Chiapas, Mexico
| | - Jorge Toledo
- Grupo de Ecología de Artrópodos y Manejo de Plagas, El Colegio de la Frontera Sur, Chiapas, Mexico
| | - Edi A Malo
- Grupo de Ecología de Artrópodos y Manejo de Plagas, El Colegio de la Frontera Sur, Chiapas, Mexico
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21
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Sarvari M, Mikani A, Mehrabadi M. The innate immune gene Relish and Caudal jointly contribute to the gut immune homeostasis by regulating antimicrobial peptides in Galleria mellonella. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 110:103732. [PMID: 32423863 DOI: 10.1016/j.dci.2020.103732] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 06/11/2023]
Abstract
Gut microbiota modulates various physiologic processes in insects, such as nutrition, metabolic homeostasis, and pathogen exclusion. Maintaining a normal microbiome is an essential element of the gut homeostasis, requiring an extensive network of regulatory immune responses. The molecular mechanisms driving these various effects and the events leading to the establishment of a normal microbiota in insects are still largely unknown. In this study, the NF-kB (IMD and Toll) signaling pathways in the gut of Galleria mellonella and their roles in the regulation of its gut microbes were assessed. For this, the transcript levels of the IMD pathway (Imd and Relish) and the Toll pathway (Spätzle and Dif/Dorsal) genes were analyzed and the results showed that all the genes were expressed in the gut of G. mellonella. Silencing of Relish resulted in reduced expression levels of the IMD pathway genes and antimicrobial peptides (AMPs) followed by overpopulation of gut bacteria. Antibiotics-treated larvae showed lower expression levels of the IMD and Toll pathway genes followed by lower AMPs expression levels. The expression level of caudal decreased in the antibiotics-treated larvae compared with the controls. Together, these data suggest that the IMD and Toll pathways are active in the gut of G. mellonella. The IMD pathway gene, relish functions in the regulation of gut microbes in this insect model.
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Affiliation(s)
- Mehdi Sarvari
- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Azam Mikani
- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Mehrabadi
- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
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22
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Sinno M, Bézier A, Vinale F, Giron D, Laudonia S, Garonna AP, Pennacchio F. Symbiosis disruption in the olive fruit fly, Bactrocera oleae (Rossi), as a potential tool for sustainable control. PEST MANAGEMENT SCIENCE 2020; 76:3199-3207. [PMID: 32358914 DOI: 10.1002/ps.5875] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/23/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The olive fruit fly Bactrocera oleae (Rossi) (OLF) is a major agricultural pest, whose control primarily relies on the use of chemical insecticides. Therefore, development of sustainable control strategies is highly desirable. The primary endosymbiotic bacterium of OLF, 'Candidatus Erwinia dacicola', is essential for successful larval development in unripe olive fruits. Therefore, targeting this endosymbiont with antimicrobial compounds may result in OLF fitness reduction and may exert control on natural populations of OLF. RESULTS Here, we evaluate the impact of compounds with antimicrobial activity on the OLF endosymbiont. Copper oxychloride (CO) and the fungal metabolite viridiol (Vi), produced by Trichoderma spp., were used. Laboratory bioassays were carried out to assess the effect of oral administration of these compounds on OLF fitness and molecular analyses (quantitative polymerase chain reaction) were conducted to measure the load of OLF-associated microorganisms in treated flies. CO and Vi were both able to disrupt the symbiotic association between OLF and its symbiotic bacteria, determining a significant reduction in the endosymbiont and gut microbiota load as well as a decrease in OLF fitness. CO had a direct negative effect on OLF adults. Conversely, exposure to Vi significantly undermined larval development of the treated female's progeny but did not show any toxicity in OLF adults. CONCLUSIONS These results provide new insights into the symbiotic control of OLF and pave the way for the development of more sustainable strategies of pest control based on the use of natural compounds with antimicrobial activity. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Martina Sinno
- Department of Agricultural Sciences, University of Naples Federico II, Portici (NA), Italy
| | - Annie Bézier
- Research Institute for the Biology of Insect (IRBI) - UMR 7261 CNRS/Université de Tours, Tours, France
| | - Francesco Vinale
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
- CNR Institute for Sustainable Plant Protection, Portici (NA), Italy
| | - David Giron
- Research Institute for the Biology of Insect (IRBI) - UMR 7261 CNRS/Université de Tours, Tours, France
| | - Stefania Laudonia
- Department of Agricultural Sciences, University of Naples Federico II, Portici (NA), Italy
| | - Antonio P Garonna
- Department of Agricultural Sciences, University of Naples Federico II, Portici (NA), Italy
| | - Francesco Pennacchio
- Department of Agricultural Sciences, University of Naples Federico II, Portici (NA), Italy
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23
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Nguyen B, Than A, Dinh H, Morimoto J, Ponton F. Parental Microbiota Modulates Offspring Development, Body Mass and Fecundity in a Polyphagous Fruit Fly. Microorganisms 2020; 8:E1289. [PMID: 32846933 PMCID: PMC7563405 DOI: 10.3390/microorganisms8091289] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/03/2020] [Accepted: 08/21/2020] [Indexed: 02/07/2023] Open
Abstract
The commensal microbiota is a key modulator of animal fitness, but little is known about the extent to which the parental microbiota influences fitness-related traits of future generations. We addressed this gap by manipulating the parental microbiota of a polyphagous fruit fly (Bactrocera tryoni) and measuring offspring developmental traits, body composition, and fecundity. We generated three parental microbiota treatments where parents had a microbiota that was non-manipulated (control), removed (axenic), or removed-and-reintroduced (reinoculation). We found that the percentage of egg hatching, of pupal production, and body weight of larvae and adult females were lower in offspring of axenic parents compared to that of non-axenic parents. The percentage of partially emerged adults was higher, and fecundity of adult females was lower in offspring of axenic parents relative to offspring of control and reinoculated parents. There was no significant effect of parental microbiota manipulation on offspring developmental time or lipid reserve. Our results reveal transgenerational effects of the parental commensal microbiota on different aspects of offspring life-history traits, thereby providing a better understanding of the long-lasting effects of host-microbe interactions.
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Affiliation(s)
- Binh Nguyen
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2113, Australia; (B.N.); (A.T.); (H.D.); (J.M.)
| | - Anh Than
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2113, Australia; (B.N.); (A.T.); (H.D.); (J.M.)
- Department of Entomology, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Hanoi 100000, Vietnam
| | - Hue Dinh
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2113, Australia; (B.N.); (A.T.); (H.D.); (J.M.)
| | - Juliano Morimoto
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2113, Australia; (B.N.); (A.T.); (H.D.); (J.M.)
- School of Biological Sciences, Zoology Building, Tillydrone Ave, Aberdeen AB24 2TZ, UK
| | - Fleur Ponton
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2113, Australia; (B.N.); (A.T.); (H.D.); (J.M.)
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24
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De Cock M, Virgilio M, Vandamme P, Bourtzis K, De Meyer M, Willems A. Comparative Microbiomics of Tephritid Frugivorous Pests (Diptera: Tephritidae) From the Field: A Tale of High Variability Across and Within Species. Front Microbiol 2020; 11:1890. [PMID: 32849469 PMCID: PMC7431611 DOI: 10.3389/fmicb.2020.01890] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 07/20/2020] [Indexed: 01/04/2023] Open
Abstract
The family Tephritidae includes some of the most notorious insect pests of agricultural and horticultural crops in tropical and sub-tropical regions. Despite the interest in the study of their gut microbiome, our present knowledge is largely based on the analysis of laboratory strains. In this study, we present a first comparative analysis of the gut microbiome profiles of field populations of ten African and Mediterranean tephritid pests. For each species, third instar larvae were sampled from different locations and host fruits and compared using 16S rRNA amplicon sequencing and a multi-factorial sampling design. We observed considerable variation in gut microbiome diversity and composition both between and within fruit fly species. A “core” microbiome, shared across all targeted species, could only be identified at most at family level (Enterobacteriaceae). At genus level only a few bacterial genera (Klebsiella, Enterobacter, and Bacillus) were present in most, but not all, samples, with high variability in their relative abundance. Higher relative abundances were found for seven bacterial genera in five of the fruit fly species considered. These were Erwinia in Bactrocera oleae, Lactococcus in B. zonata, Providencia in Ceratitis flexuosa, Klebsiella, and Rahnella in C. podocarpi and Acetobacter and Serratia in C. rosa. With the possible exception of C. capitata and B. dorsalis (the two most polyphagous species considered) we could not detect obvious relationships between fruit fly dietary breadth and microbiome diversity or abundance patterns. Similarly, our results did not suggest straightforward differences between the microbiome profiles of species belonging to Ceratitis and the closely related Bactrocera/Zeugodacus. These results provide a first comparative analysis of the gut microbiomes of field populations of multiple economically relevant tephritids and provide base line information for future studies that will further investigate the possible functional role of the observed associations.
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Affiliation(s)
- Maarten De Cock
- Royal Museum for Central Africa, Tervuren, Belgium.,Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | | | - Peter Vandamme
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint Food and Agriculture Organization of the UnitedNations/International Atomic Energy Agency (FAO/IAEA) Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria
| | | | - Anne Willems
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
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25
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Raza MF, Yao Z, Bai S, Cai Z, Zhang H. Tephritidae fruit fly gut microbiome diversity, function and potential for applications. BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:423-437. [PMID: 32041675 DOI: 10.1017/s0007485319000853] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The family Tephritidae (order: Diptera), commonly known as fruit flies, comprises a widely distributed group of agricultural pests. The tephritid pests infest multiple species of fruits and vegetables, resulting in huge crop losses. Here, we summarize the composition and diversity of tephritid gut-associated bacteria communities and host intrinsic and environmental factors that influence the microbiome structures. Diverse members of Enterobacteriaceae, most commonly Klebsiella and Enterobacter bacteria, are prevalent in fruit flies guts. Roles played by gut bacteria in host nutrition, development, physiology and resistance to insecticides and pathogens are also addressed. This review provides an overview of fruit fly microbiome structure and points to diverse roles that it can play in fly physiology and survival. It also considers potential use of this knowledge for the control of economically important fruit flies, including the sterile insect technique and cue-lure baiting.
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Affiliation(s)
- Muhammad Fahim Raza
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), China-Australia Joint Research Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Zhichao Yao
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), China-Australia Joint Research Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Shuai Bai
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), China-Australia Joint Research Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Zhaohui Cai
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), China-Australia Joint Research Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Hongyu Zhang
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), China-Australia Joint Research Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
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26
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Kucuk RA. Gut Bacteria in the Holometabola: A Review of Obligate and Facultative Symbionts. JOURNAL OF INSECT SCIENCE (ONLINE) 2020; 20:5893943. [PMID: 32809024 PMCID: PMC7433766 DOI: 10.1093/jisesa/ieaa084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Indexed: 06/11/2023]
Abstract
The diversity and ecological variety of Holometabola foregrounds a wide array of dynamic symbiotic relationships with gut-dwelling bacteria. A review of the literature highlights that holometabolous insects rely on both obligate bacteria and facultative bacteria living in their guts to satisfy a number of physiological needs. The driving forces behind these differing relationships can be hypothesized through the scrutiny of bacterial associations with host gut morphology, and transmission of bacteria within a given host taxon. Our knowledge of the evolution of facultative or obligate symbiotic bacteria in holometabolan systems is further enhanced by an assessment of the various services the bacteria provide, including nutrition, immune system health, and development. The diversity of Holometabola can thus be examined through an assessment of known bacterial partnerships within the orders of Holometabola.
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Affiliation(s)
- R A Kucuk
- Clemson University, Poole Agricultural Center, Clemson, SC
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27
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Bayega A, Djambazian H, Tsoumani KT, Gregoriou ME, Sagri E, Drosopoulou E, Mavragani-Tsipidou P, Giorda K, Tsiamis G, Bourtzis K, Oikonomopoulos S, Dewar K, Church DM, Papanicolaou A, Mathiopoulos KD, Ragoussis J. De novo assembly of the olive fruit fly (Bactrocera oleae) genome with linked-reads and long-read technologies minimizes gaps and provides exceptional Y chromosome assembly. BMC Genomics 2020; 21:259. [PMID: 32228451 PMCID: PMC7106766 DOI: 10.1186/s12864-020-6672-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/13/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The olive fruit fly, Bactrocera oleae, is the most important pest in the olive fruit agribusiness industry. This is because female flies lay their eggs in the unripe fruits and upon hatching the larvae feed on the fruits thus destroying them. The lack of a high-quality genome and other genomic and transcriptomic data has hindered progress in understanding the fly's biology and proposing alternative control methods to pesticide use. RESULTS Genomic DNA was sequenced from male and female Demokritos strain flies, maintained in the laboratory for over 45 years. We used short-, mate-pair-, and long-read sequencing technologies to generate a combined male-female genome assembly (GenBank accession GCA_001188975.2). Genomic DNA sequencing from male insects using 10x Genomics linked-reads technology followed by mate-pair and long-read scaffolding and gap-closing generated a highly contiguous 489 Mb genome with a scaffold N50 of 4.69 Mb and L50 of 30 scaffolds (GenBank accession GCA_001188975.4). RNA-seq data generated from 12 tissues and/or developmental stages allowed for genome annotation. Short reads from both males and females and the chromosome quotient method enabled identification of Y-chromosome scaffolds which were extensively validated by PCR. CONCLUSIONS The high-quality genome generated represents a critical tool in olive fruit fly research. We provide an extensive RNA-seq data set, and genome annotation, critical towards gaining an insight into the biology of the olive fruit fly. In addition, elucidation of Y-chromosome sequences will advance our understanding of the Y-chromosome's organization, function and evolution and is poised to provide avenues for sterile insect technique approaches.
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Affiliation(s)
- Anthony Bayega
- McGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada
| | - Haig Djambazian
- McGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada
| | - Konstantina T. Tsoumani
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Maria-Eleni Gregoriou
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Efthimia Sagri
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Eleni Drosopoulou
- Department of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Kristina Giorda
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, Iowa, 52241 USA
| | - George Tsiamis
- Department of Environmental Engineering, University of Patras, Agrinio, Greece
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria
| | - Spyridon Oikonomopoulos
- McGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada
| | - Ken Dewar
- McGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada
| | - Deanna M. Church
- Inscripta, Inc., 5500 Central Avenue #220, Boulder, CO 80301 USA
| | - Alexie Papanicolaou
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW 2753 Australia
| | - Kostas D. Mathiopoulos
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Jiannis Ragoussis
- McGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada
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28
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Andongma AA, Wan L, Dong YC, Wang YL, He J, Niu CY. Assessment of the Bacteria community structure across life stages of the Chinese Citrus Fly, Bactrocera minax (Diptera: Tephritidae). BMC Microbiol 2019; 19:285. [PMID: 31870291 PMCID: PMC6929268 DOI: 10.1186/s12866-019-1646-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Background Symbiotic bacteria play a critical role in insect’s biology. They also offer great opportunities to improve on current pest management techniques. In order to exploit and integrate the roles played by the gut microbiota on pest management programs, a better understanding of the structural organization of the microbial community in the Chinese citrus fly Bactrocera minax is essential. Results The results revealed a total of 162 OTUs at 97% similarity interval. The dominant bacteria phyla were Proteobacteria, Bacteroidetes, Antinobacteria and Firmicutes, with the Proteobacteria having the highest relative abundance (more than 80% in all life stages). There was also a shift in the dominant OTUs from the early developmental stages to the late developmental stages and adult stages in B. minax. These OTUs related to Klebsiella pneumoniae, Providencia rettgeri and Enterobacter aerogenes, respectively. Six bacteria OTU were shared by all the life stages. These belonged to the Enterobacteriaceae and the Enterococcaceae families. Conclusion The common bacteria groups shared by all the life stages and other fruit flies could be important targets for further research. This should aim towards realizing how these bacteria affect the biology of the fly and how their relationship could be exploited in the development of sustainable management strategies against fruit flies.
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Affiliation(s)
| | - Lun Wan
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yong-Cheng Dong
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yu-Lei Wang
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jin He
- State key laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chang-Ying Niu
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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29
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Woruba DN, Morrow JL, Reynolds OL, Chapman TA, Collins DP, Riegler M. Diet and irradiation effects on the bacterial community composition and structure in the gut of domesticated teneral and mature Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae). BMC Microbiol 2019; 19:281. [PMID: 31870300 PMCID: PMC6929413 DOI: 10.1186/s12866-019-1649-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mass-rearing, domestication and gamma irradiation of tephritid fruit flies used in sterile insect technique (SIT) programmes can negatively impact fly quality and performance. Symbiotic bacteria supplied as probiotics to mass-reared fruit flies may help to overcome some of these issues. However, the effects of tephritid ontogeny, sex, diet and irradiation on their microbiota are not well known. RESULTS We have used next-generation sequencing to characterise the bacterial community composition and structure within Queensland fruit fly, Bactrocera tryoni (Froggatt), by generating 16S rRNA gene amplicon libraries derived from the guts of 58 individual teneral and mature, female and male, sterile and fertile adult flies reared on artificial larval diets in a laboratory or mass-rearing environment, and fed either a full adult diet (i.e. sugar and yeast hydrolysate) or a sugar only adult diet. Overall, the amplicon sequence read volume in tenerals was low and smaller than in mature adult flies. Operational taxonomic units (OTUs), belonging to the families Enterobacteriaceae (8 OTUs) and Acetobacteraceae (1 OTU) were most prevalent. Enterobacteriaceae dominated laboratory-reared tenerals from a colony fed a carrot-based larval diet, while Acetobacteraceae dominated mass-reared tenerals from a production facility colony fed a lucerne chaff based larval diet. As adult flies matured, Enterobacteriaceae became dominant irrespective of larval origin. The inclusion of yeast in the adult diet strengthened this shift away from Acetobacteraceae towards Enterobacteriaceae. Interestingly, irradiation increased 16S rRNA gene sequence read volume. CONCLUSIONS Our findings suggest that bacterial populations in fruit flies experience significant bottlenecks during metamorphosis. Gut bacteria in teneral flies were less abundant and less diverse, and impacted by colony origin. In contrast, mature adult flies had selectively increased abundances for some gut bacteria, or acquired these bacteria from the adult diet and environment. Furthermore, irradiation augmented bacterial abundance in mature flies. This implies that either some gut bacteria were compensating for damage caused by irradiation or irradiated flies had lost their ability to regulate bacterial load. Our findings suggest that the adult stage prior to sexual maturity may be ideal to target for probiotic manipulation of fly microbiota to increase fly performance in SIT programmes.
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Affiliation(s)
- Deane N Woruba
- Plant Biosecurity Cooperative Research Centre, LPO, Box 5012, Bruce, ACT, 2617, Australia. .,Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia. .,Biosecurity and Food Safety, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Private Bag 4008, Narellan, NSW, 2567, Australia.
| | - Jennifer L Morrow
- Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia
| | - Olivia L Reynolds
- Plant Biosecurity Cooperative Research Centre, LPO, Box 5012, Bruce, ACT, 2617, Australia.,Biosecurity and Food Safety, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Private Bag 4008, Narellan, NSW, 2567, Australia.,Graham Centre for Agricultural Innovation (an alliance between Charles Sturt University and NSW DPI), Locked Bag 588, Wagga Wagga, NSW, 2678, Australia.,cesar Pty Ltd, 293 Royal Parade, Parkville, Victoria, 3052, Australia
| | - Toni A Chapman
- Plant Biosecurity Cooperative Research Centre, LPO, Box 5012, Bruce, ACT, 2617, Australia.,Biosecurity and Food Safety, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Private Bag 4008, Narellan, NSW, 2567, Australia
| | - Damian P Collins
- Biometrics Unit, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Private Bag 4008, Narellan, NSW, 2567, Australia
| | - Markus Riegler
- Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia.
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30
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Kyritsis GA, Augustinos AA, Ntougias S, Papadopoulos NT, Bourtzis K, Cáceres C. Enterobacter sp. AA26 gut symbiont as a protein source for Mediterranean fruit fly mass-rearing and sterile insect technique applications. BMC Microbiol 2019; 19:288. [PMID: 31870292 PMCID: PMC6929400 DOI: 10.1186/s12866-019-1651-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background Insect species have established sophisticated symbiotic associations with diverse groups of microorganisms including bacteria which have been shown to affect several aspects of their biology, physiology, ecology and evolution. In addition, recent studies have shown that insect symbionts, including those localized in the gastrointestinal tract, can be exploited for the enhancement of sterile insect technique (SIT) applications against major insect pests such as the Mediterranean fruit fly (medfly) Ceratitis capitata. We previously showed that Enterobacter sp. AA26 can be used as probiotic supplement in medfly larval diet improving the productivity and accelerating the development of the VIENNA 8 genetic sexing strain (GSS), which is currently used in large scale operational SIT programs worldwide. Results Enterobacter sp. AA26 was an adequate nutritional source for C. capitata larvae, comprising an effective substitute for brewer’s yeast. Incorporating inactive bacterial cells in the larval diet conferred a number of substantial beneficial effects on medfly biology. The consumption of bacteria-based diet (either as full or partial yeast replacement) resulted in decreased immature stages mortality, accelerated immature development, increased pupal weight, and elongated the survival under stress conditions. Moreover, neither the partial nor the complete replacement of yeast with Enterobacter sp. AA26 had significant impact on adult sex ratio, females’ fecundity, adults’ flight ability and males’ mating competitiveness. The absence of both yeast and Enterobacter sp. AA26 (deprivation of protein source and possible other important nutrients) from the larval diet detrimentally affected the larval development, survival and elongated the immature developmental duration. Conclusions Enterobacter sp. AA26 dry biomass can fully replace the brewer’s yeast as a protein source in medfly larval diet without any effect on the productivity and the biological quality of reared medfly of VIENNA 8 GSS as assessed by the FAO/IAEA/USDA standard quality control tests. We discuss this finding in the context of mass-rearing and SIT applications.
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Affiliation(s)
- Georgios A Kyritsis
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400, Vienna, Austria.,Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Phytokou St., 38446, N. Ionia, Magnisia, Greece
| | - Antonios A Augustinos
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400, Vienna, Austria
| | - Spyridon Ntougias
- Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas Sofias 12, 67100, Xanthi, Greece
| | - Nikos T Papadopoulos
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Phytokou St., 38446, N. Ionia, Magnisia, Greece
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400, Vienna, Austria.
| | - Carlos Cáceres
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400, Vienna, Austria
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31
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Juárez ML, Pimper LE, Bachmann GE, Conte CA, Ruiz MJ, Goane L, Medina Pereyra P, Castro F, Salgueiro J, Cladera JL, Fernández PC, Bourtzis K, Lanzavecchia SB, Vera MT, Segura DF. Gut bacterial diversity and physiological traits of Anastrepha fraterculus Brazilian-1 morphotype males are affected by antibiotic treatment. BMC Microbiol 2019; 19:283. [PMID: 31870309 PMCID: PMC6929401 DOI: 10.1186/s12866-019-1645-x] [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] [Indexed: 11/10/2022] Open
Abstract
Background The interaction between gut bacterial symbionts and Tephritidae became the focus of several studies that showed that bacteria contributed to the nutritional status and the reproductive potential of its fruit fly hosts. Anastrepha fraterculus is an economically important fruit pest in South America. This pest is currently controlled by insecticides, which prompt the development of environmentally friendly methods such as the sterile insect technique (SIT). For SIT to be effective, a deep understanding of the biology and sexual behavior of the target species is needed. Although many studies have contributed in this direction, little is known about the composition and role of A. fraterculus symbiotic bacteria. In this study we tested the hypothesis that gut bacteria contribute to nutritional status and reproductive success of A. fraterculus males. Results AB affected the bacterial community of the digestive tract of A. fraterculus, in particular bacteria belonging to the Enterobacteriaceae family, which was the dominant bacterial group in the control flies (i.e., non-treated with AB). AB negatively affected parameters directly related to the mating success of laboratory males and their nutritional status. AB also affected males’ survival under starvation conditions. The effect of AB on the behaviour and nutritional status of the males depended on two additional factors: the origin of the males and the presence of a proteinaceous source in the diet. Conclusions Our results suggest that A. fraterculus males gut contain symbiotic organisms that are able to exert a positive contribution on A. fraterculus males’ fitness, although the physiological mechanisms still need further studies.
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Affiliation(s)
- María Laura Juárez
- Cátedra Terapéutica Vegetal, Facultad de Agronomía y Zootecnia (FAZ), Universidad Nacional de Tucumán (UNT), Tucumán, Argentina.,Unidad Ejecutora Lillo, Fundación Miguel Lillo, Tucumán, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Lida Elena Pimper
- Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina
| | - Guillermo Enrique Bachmann
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina
| | - Claudia Alejandra Conte
- Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina
| | - María Josefina Ruiz
- Cátedra Terapéutica Vegetal, Facultad de Agronomía y Zootecnia (FAZ), Universidad Nacional de Tucumán (UNT), Tucumán, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Lucía Goane
- Cátedra Terapéutica Vegetal, Facultad de Agronomía y Zootecnia (FAZ), Universidad Nacional de Tucumán (UNT), Tucumán, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | | | - Felipe Castro
- Instituto de Fisiología Animal, Fundación Miguel Lillo, Tucumán, Argentina
| | - Julieta Salgueiro
- Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina
| | - Jorge Luis Cladera
- Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina
| | - Patricia Carina Fernández
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Estación Agropecuaria Delta, Instituto Nacional de Tecnología Agropecuaria (INTA), Campana, Argentina
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria
| | - Silvia Beatriz Lanzavecchia
- Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina
| | - María Teresa Vera
- Cátedra Terapéutica Vegetal, Facultad de Agronomía y Zootecnia (FAZ), Universidad Nacional de Tucumán (UNT), Tucumán, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Diego Fernando Segura
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. .,Instituto de Genética Ewald A. Favret (IGEAF), Instituto Nacional de Tecnología Agropecuaria (INTA) - GV Instituto de Agrobiotecnología y Biología Molecular (IABIMO, CONICET), Hurlingham, Argentina.
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Abstract
BACKGROUND The Sterile Insect Technique (SIT) is being applied for the management of economically important pest fruit flies (Diptera: Tephritidae) in a number of countries worldwide. The success and cost effectiveness of SIT depends upon the ability of mass-reared sterilized male insects to successfully copulate with conspecific wild fertile females when released in the field. METHODS We conducted a critical analysis of the literature about the tephritid gut microbiome including the advancement of methods for the identification and characterization of microbiota, particularly next generation sequencing, the impacts of irradiation (to induce sterility of flies) and fruit fly rearing, and the use of probiotics to manipulate the fruit fly gut microbiota. RESULTS Domestication, mass-rearing, irradiation and handling, as required in SIT, may change the structure of the fruit flies' gut microbial community compared to that of wild flies under field conditions. Gut microbiota of tephritids are important in their hosts' development, performance and physiology. Knowledge of how mass-rearing and associated changes of the microbial community impact the functional role of the bacteria and host biology is limited. Probiotics offer potential to encourage a gut microbial community that limits pathogens, and improves the quality of fruit flies. CONCLUSIONS Advances in technologies used to identify and characterize the gut microbiota will continue to expand our understanding of tephritid gut microbial diversity and community composition. Knowledge about the functions of gut microbes will increase through the use of gnotobiotic models, genome sequencing, metagenomics, metatranscriptomics, metabolomics and metaproteomics. The use of probiotics, or manipulation of the gut microbiota, offers significant opportunities to enhance the production of high quality, performing fruit flies in operational SIT programs.
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Asimakis ED, Khan M, Stathopoulou P, Caceres C, Bourtzis K, Tsiamis G. The effect of diet and radiation on the bacterial symbiome of the melon fly, Zeugodacus cucurbitae (Coquillett). BMC Biotechnol 2019; 19:88. [PMID: 31847902 PMCID: PMC6918631 DOI: 10.1186/s12896-019-0578-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Symbiotic bacteria contribute to a multitude of important biological functions such as nutrition and reproduction and affect multiple physiological factors like fitness and longevity in their insect hosts. The melon fly, Zeugodacus cucurbitae (Coquillett), is an important agricultural pest that affects a variety of cultivated plants belonging mostly to the Cucurbitaceae family. It is considered invasive and widespread in many parts of the world. Several approaches are currently being considered for the management of its populations including the environmentally friendly and effective sterile insect technique (SIT), as a component of an integrated pest management (IPM) strategy. In the present study, we examined the effect of diet and radiation on the bacterial symbiome of Z. cucurbitae flies with the use of Next Generation Sequencing technologies. Results Melon flies were reared on two diets at the larval stage, an artificial bran-based diet and on sweet gourd, which affected significantly the development of the bacterial profiles. Significant differentiation was also observed based on gender. The effect of radiation was mostly diet dependent, with irradiated melon flies reared on the bran diet exhibiting a significant reduction in species diversity and richness compared to their non-irradiated controls. Changes in the bacterial symbiome of the irradiated melon flies included a drastic reduction in the number of sequences affiliated with members of Citrobacter, Raoultella, and Enterobacteriaceae. At the same time, an increase was observed for members of Enterobacter, Providencia and Morganella. Interestingly, the irradiated male melon flies reared on sweet gourd showed a clear differentiation compared to their non-irradiated controls, namely a significant reduction in species richness and minor differences in the relative abundance for members of Enterobacter and Providencia. Conclusions The two diets in conjunction with the irradiation affected significantly the formation of the bacterial symbiome. Melon flies reared on the bran-based artificial diet displayed significant changes in the bacterial symbiome upon irradiation, in all aspects, including species richness, diversity and composition. When reared on sweet gourd, significant changes occurred to male samples due to radiation, only in terms of species richness.
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Affiliation(s)
- Elias D Asimakis
- Department of Environmental Engineering, University of Patras, 2 Seferi St., 30131, Agrinio, Greece
| | - Mahfuza Khan
- Insect Biotechnology Division, Institute of Food and Radiation Biology (IFRB), Atomic Energy Research Establishment (AERE), Ganak bari, Savar, Dhaka, 1349, Bangladesh
| | - Panagiota Stathopoulou
- Department of Environmental Engineering, University of Patras, 2 Seferi St., 30131, Agrinio, Greece
| | - Carlos Caceres
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Centre, P.O. Box 100, 1400, Vienna, Austria
| | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Centre, P.O. Box 100, 1400, Vienna, Austria
| | - George Tsiamis
- Department of Environmental Engineering, University of Patras, 2 Seferi St., 30131, Agrinio, Greece.
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Sacchetti P, Pastorelli R, Bigiotti G, Guidi R, Ruschioni S, Viti C, Belcari A. Olive fruit fly rearing procedures affect the vertical transmission of the bacterial symbiont Candidatus Erwinia dacicola. BMC Biotechnol 2019; 19:91. [PMID: 31847839 PMCID: PMC6918546 DOI: 10.1186/s12896-019-0582-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND The symbiosis between the olive fruit fly, Bactrocera oleae, and Candidatus Erwinia dacicola has been demonstrated as essential for the fly's larval development and adult physiology. The mass rearing of the olive fruit fly has been hindered by several issues, including problems which could be related to the lack of the symbiont, presumably due to preservatives and antibiotics currently used during rearing under laboratory conditions. To better understand the mechanisms underlying symbiont removal or loss during the rearing of lab colonies of the olive fruit fly, we performed experiments that focused on bacterial transfer from wild female flies to their eggs. In this research, eggs laid by wild females were treated with propionic acid solution, which is often used as an antifungal agent, a mixture of sodium hypochlorite and Triton X, or water (as a control). The presence of the bacterial symbiont on eggs was evaluated by real-time PCR and scanning electron microscopy. RESULTS DGGE analysis showed a clear band with the same migration behavior present in all DGGE profiles but with a decreasing intensity. Molecular analyses performed by real-time PCR showed a significant reduction in Ca. E. dacicola abundance in eggs treated with propionic acid solution or a mixture of sodium hypochlorite and Triton X compared to those treated with water. In addition, the removal of bacteria from the surfaces of treated eggs was highlighted by scanning electron microscopy. CONCLUSIONS The results clearly indicate how the first phases of the colony-establishment process are important in maintaining the symbiont load in laboratory populations and suggest that the use of products with antimicrobial activity should be avoided. The results also suggest that alternative rearing procedures for the olive fruit fly should be investigated.
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Affiliation(s)
- Patrizia Sacchetti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Roberta Pastorelli
- Research Centre for Agriculture and Environment, Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria (CREA-AA), via di Lanciola, 12/A, 50125 Florence, Italy
| | - Gaia Bigiotti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Roberto Guidi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Sara Ruschioni
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche 10, 60131 Ancona, Italy
| | - Carlo Viti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Antonio Belcari
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
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Bigiotti G, Pastorelli R, Guidi R, Belcari A, Sacchetti P. Horizontal transfer and finalization of a reliable detection method for the olive fruit fly endosymbiont, Candidatus Erwinia dacicola. BMC Biotechnol 2019; 19:93. [PMID: 31847845 PMCID: PMC6918556 DOI: 10.1186/s12896-019-0583-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The olive fly, Bactrocera oleae, is the most important insect pest in olive production, causing economic damage to olive crops worldwide. In addition to extensive research on B. oleae control methods, scientists have devoted much effort in the last century to understanding olive fly endosymbiosis with a bacterium eventually identified as Candidatus Erwinia dacicola. This bacterium plays a relevant role in olive fly fitness. It is vertically transmitted, and it benefits both larvae and adults in wild populations; however, the endosymbiont is not present in lab colonies, probably due to the antibiotics and preservatives required for the preparation of artificial diets. Endosymbiont transfer from wild B. oleae populations to laboratory-reared ones allows olive fly mass-rearing, thus producing more competitive flies for future Sterile Insect Technique (SIT) applications. RESULTS We tested the hypothesis that Ca. E. dacicola might be transmitted from wild, naturally symbiotic adults to laboratory-reared flies. Several trials have been performed with different contamination sources of Ca. E. dacicola, such as ripe olives and gelled water contaminated by wild flies, wax domes containing eggs laid by wild females, cages dirtied by faeces dropped by wild flies and matings between lab and wild adults. PCR-DGGE, performed with the primer set 63F-GC/518R, demonstrated that the transfer of the endosymbiont from wild flies to lab-reared ones occurred only in the case of cohabitation. CONCLUSIONS Cohabitation of symbiotic wild flies and non-symbiotic lab flies allows the transfer of Ca. E. dacicola through adults. Moreover, PCR-DGGE performed with the primer set 63F-GC/518R was shown to be a consistent method for screening Ca. E. dacicola, also showing the potential to distinguish between the two haplotypes (htA and htB). This study represents the first successful attempt at horizontal transfer of Ca. E. dacicola and the first step in acquiring a better understanding of the endosymbiont physiology and its relationship with the olive fly. Our research also represents a starting point for the development of a laboratory symbiotic olive fly colony, improving perspectives for future applications of the Sterile Insect Technique.
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Affiliation(s)
- Gaia Bigiotti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Roberta Pastorelli
- Research Centre for Agriculture and Environment, Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria (CREA-AA), via di Lanciola, 12/A, 50125 Florence, Italy
| | - Roberto Guidi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Antonio Belcari
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
| | - Patrizia Sacchetti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, via Maragliano 77, 50144 Florence, Italy
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Khamis FM, Mireji PO, Ombura FLO, Malacrida AR, Awuoche EO, Rono M, Mohamed SA, Tanga CM, Ekesi S. Species-specific transcriptional profiles of the gut and gut microbiome of Ceratitis quilicii and Ceratitis rosa sensu stricto. Sci Rep 2019; 9:18355. [PMID: 31798006 PMCID: PMC6892911 DOI: 10.1038/s41598-019-54989-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 11/19/2019] [Indexed: 12/27/2022] Open
Abstract
The fruit fly species, Ceratitis rosa sensu stricto and Ceratitis quilicii, are sibling species restricted to the lowland and highland regions, respectively. Until recently, these sibling species were considered as allopatric populations of C. rosa with distinct bionomics. We used deep Next Generation Sequencing (NGS) technology on intact guts of individuals from the two sibling species to compare their transcriptional profiles and simultaneously understand gut microbiome and host molecular processes and identify distinguishing genetic differences between the two species. Since the genomes of both species had not been published previously, the transcriptomes were assembled de novo into transcripts. Microbe-specific transcript orthologs were separated from the assembly by filtering searches of the transcripts against microbe databases using OrthoMCL. We then used differential expression analysis of host-specific transcripts (i.e. those remaining after the microbe-specific transcripts had been removed) and microbe-specific transcripts from the two-sibling species to identify defining species-specific transcripts that were present in only one fruit fly species or the other, but not in both. In C. quilicii females, bacterial transcripts of Pectobacterium spp., Enterobacterium buttiauxella, Enterobacter cloacae and Klebsiella variicola were upregulated compared to the C. rosa s.s. females. Comparison of expression levels of the host transcripts revealed a heavier investment by C. quilicii (compared with C. rosa s.s.) in: immunity; energy production; cell proliferation; insecticide resistance; reproduction and proliferation; and redox reactions that are usually associated with responses to stress and degradation of fruit metabolites.
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Affiliation(s)
- Fathiya M Khamis
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya.
| | - Paul O Mireji
- Biotechnology Research Institute, Kenya Agricultural and Livestock Research Organization, P.O. Box 362-00902, Kikuyu, Kenya.,Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute, P.O. Box 428, Kilifi, Kenya
| | - Fidelis L O Ombura
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - Anna R Malacrida
- Department of Biology and Biotechnology, Universita degli Studi di Pavia, Corso Strada Nuova, 65, 27100, Pavia, Italy
| | - Erick O Awuoche
- Biotechnology Research Institute, Kenya Agricultural and Livestock Research Organization, P.O. Box 362-00902, Kikuyu, Kenya.,Department of Agriculture, School of Agriculture and Food Science, Meru University of Science and Technology, P.O. Box 972, Meru, Kenya
| | - Martin Rono
- Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute, P.O. Box 428, Kilifi, Kenya
| | - Samira A Mohamed
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - Chrysantus M Tanga
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - Sunday Ekesi
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
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Akami M, Ren XM, Qi X, Mansour A, Gao B, Cao S, Niu CY. Symbiotic bacteria motivate the foraging decision and promote fecundity and survival of Bactrocera dorsalis (Diptera: Tephritidae). BMC Microbiol 2019; 19:229. [PMID: 31640545 PMCID: PMC6805663 DOI: 10.1186/s12866-019-1607-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/30/2019] [Indexed: 01/30/2023] Open
Abstract
Background The gut bacteria of tephritid fruit flies play prominent roles in nutrition, reproduction, maintenance and ecological adaptations of the host. Here, we adopted an approach based on direct observation of symbiotic or axenic flies feeding on dishes seeded with drops of full diet (containing all amino acids) or full diet supplemented with bacteria at similar concentrations to explore the effects of intestinal bacteria on foraging decision and fitness of Bactrocera dorsalis. Results The results show that intestinal probiotics elicit beneficial foraging decision and enhance the female reproduction fitness and survival of B. dorsalis (symbiotic and axenic), yet preferences for probiotic diets were significantly higher in axenic flies to which they responded faster compared to full diet. Moreover, females fed diet supplemented with Pantoea dispersa and Enterobacter cloacae laid more eggs but had shorter lifespan while female fed Enterococcus faecalis and Klebsiella oxytoca enriched diets lived longer but had lower fecundity compared to the positive control. Conversely, flies fed sugar diet (negative control) were not able to produce eggs, but lived longer than those from the positive control. Conclusions These results suggest that intestinal bacteria can drive the foraging decision in a way which promotes the reproduction and survival of B. dorsalis. Our data highlight the potentials of gut bacterial isolates to control the foraging behavior of the fly and empower the sterile insect technique (SIT) program through the mass rearing.
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Affiliation(s)
- Mazarin Akami
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China.,Department of Biological Sciences, Faculty of Science, University of Ngaoundere, P.O Box 454, Ngaoundere, Cameroon
| | - Xue-Ming Ren
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xuewei Qi
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Abdelaziz Mansour
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China.,Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - Bingli Gao
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuai Cao
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chang-Ying Niu
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Nobre T. Symbiosis in Sustainable Agriculture: Can Olive Fruit Fly Bacterial Microbiome Be Useful in Pest Management? Microorganisms 2019; 7:E238. [PMID: 31382604 PMCID: PMC6723466 DOI: 10.3390/microorganisms7080238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 12/12/2022] Open
Abstract
The applied importance of symbiosis has been gaining recognition. The relevance of symbiosis has been increasing in agriculture, in developing sustainable practices, including pest management. Insect symbiotic microorganisms' taxonomical and functional diversity is high, and so is the potential of manipulation of these microbial partners in suppressing pest populations. These strategies, which rely on functional organisms inhabiting the insect, are intrinsically less susceptible to external environmental variations and hence likely to overcome some of the challenges posed by climate change. Rates of climate change in the Mediterranean Basin are expected to exceed global trends for most variables, and this warming will also affect olive production and impact the interactions of olives and their main pest, the obligate olive fruit fly (Bactrocera oleae). This work summarizes the current knowledge on olive fly symbiotic bacteria towards the potential development of symbiosis-based strategies for olive fruit fly control. Particular emphasis is given to Candidatus Erwinia dacicola, an obligate, vertically transmitted endosymbiont that allows the insect to cope with the olive-plant produced defensive compound oleuropein, as a most promising target for a symbiosis disruption approach.
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Affiliation(s)
- Tânia Nobre
- Laboratory of Entomology, Instituto de Ciências Agrárias e Ambientais Mediterrânicas, University of Évora, Apartado 94, 7002-554 Évora, Portugal.
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Jose PA, Ben-Yosef M, Jurkevitch E, Yuval B. Symbiotic bacteria affect oviposition behavior in the olive fruit fly Bactrocera oleae. JOURNAL OF INSECT PHYSIOLOGY 2019; 117:103917. [PMID: 31381903 DOI: 10.1016/j.jinsphys.2019.103917] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 05/10/2023]
Abstract
Microbial associations are widespread across the insects. In the olive fruit fly Bactrocera oleae (Diptera: Tephritidae), vertically transmitted gut symbionts contribute to larval development inside the olive host, and to adult nutrition. Nevertheless, their effect on behavioural decisions of adults is unknown. In this study, we show that symbiotic bacteria affect oviposition behaviour in B. oleae. We studied the effect of different fruits as hosts and different gut-bacteria as gut-symbionts on oviposition attempts and fly development in B. oleae. Untreated flies that had native gut-symbionts attempted oviposition significantly more times than axenic flies as well as flies treated with medfly-associated Pantoea or Klebsiella bacteria. Axenic flies provided with a diet containing the homogenized gut of symbiotic flies recovered the same number of oviposition attempts as their symbiotic counterparts. As for as the different hosts, green olives (unripe) and grapes were preferred while black olives (ripe) elicited the least number of oviposition attempts, with an interactive effect of host and bacterial treatments. It appears that both the host attributes and the native gut-symbionts drive oviposition preference towards green olives in B. oleae. Moreover, both bacterial treatments and hosts significantly affected the development of B. oleae larvae. Though grapes elicited as many oviposition attempts as green olives, they yielded no pupae. Taken together, our results suggest that the intimate association between B. oleae and their gut-microbes, extends beyond nutritional support to behaviour.
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Affiliation(s)
- Polpass Arul Jose
- Department of Entomology, Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem. POB 12, Rehovot 7610001, Israel; Department of Microbiology and Plant Pathology, Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem. POB 12, Rehovot 7610001, Israel.
| | - Michael Ben-Yosef
- Department of Entomology, Agricultural Research Organization, Gilat Center, M. P. Negev 85280, Israel
| | - Edouard Jurkevitch
- Department of Microbiology and Plant Pathology, Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem. POB 12, Rehovot 7610001, Israel
| | - Boaz Yuval
- Department of Entomology, Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem. POB 12, Rehovot 7610001, Israel.
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Ravenscraft A, Kish N, Peay K, Boggs C. No evidence that gut microbiota impose a net cost on their butterfly host. Mol Ecol 2019; 28:2100-2117. [PMID: 30803091 PMCID: PMC6525022 DOI: 10.1111/mec.15057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 01/01/2023]
Abstract
Gut microbes are believed to play a critical role in most animal life, yet fitness effects and cost–benefit trade‐offs incurred by the host are poorly understood. Unlike most hosts studied to date, butterflies largely acquire their nutrients from larval feeding, leaving relatively little opportunity for nutritive contributions by the adult's microbiota. This provides an opportunity to measure whether hosting gut microbiota comes at a net nutritional price. Because host and bacteria may compete for sugars, we hypothesized that gut flora would be nutritionally neutral to adult butterflies with plentiful food, but detrimental to semistarved hosts, especially when at high density. We held field‐caught adult Speyeria mormonia under abundant or restricted food conditions. Because antibiotic treatments did not generate consistent variation in their gut microbiota, we used interindividual variability in bacterial loads and operational taxonomic unit abundances to examine correlations between host fitness and the abdominal microbiota present upon natural death. We detected strikingly few relationships between microbial flora and host fitness. Neither total bacterial load nor the abundances of dominant bacterial taxa were related to butterfly fecundity, egg mass or egg chemical content. Increased abundance of a Commensalibacter species did correlate with longer host life span, while increased abundance of a Rhodococcus species correlated with shorter life span. Contrary to our expectations, these relationships were unchanged by food availability to the host and were unrelated to reproductive output. Our results suggest the butterfly microbiota comprises parasitic, commensal and beneficial taxa that together do not impose a net reproductive cost, even under caloric stress.
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Affiliation(s)
- Alison Ravenscraft
- Department of Biology, Stanford University, Stanford, California.,Rocky Mountain Biological Laboratory, Crested Butte, Colorado
| | - Nicole Kish
- Rocky Mountain Biological Laboratory, Crested Butte, Colorado.,Department of Biological Sciences, University of South Carolina, Columbia, South Carolina
| | - Kabir Peay
- Department of Biology, Stanford University, Stanford, California
| | - Carol Boggs
- Rocky Mountain Biological Laboratory, Crested Butte, Colorado.,Department of Biological Sciences, University of South Carolina, Columbia, South Carolina.,School of the Earth, Ocean & Environment, University of South Carolina, Columbia, South Carolina
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Akami M, Andongma AA, Zhengzhong C, Nan J, Khaeso K, Jurkevitch E, Niu CY, Yuval B. Intestinal bacteria modulate the foraging behavior of the oriental fruit fly Bactrocera dorsalis (Diptera: Tephritidae). PLoS One 2019; 14:e0210109. [PMID: 30650116 PMCID: PMC6334898 DOI: 10.1371/journal.pone.0210109] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 12/16/2018] [Indexed: 12/18/2022] Open
Abstract
The gut microbiome of insects directly or indirectly affects the metabolism, immune status, sensory perception and feeding behavior of its host. Here, we examine the hypothesis that in the oriental fruit fly (Bactrocera dorsalis, Diptera: Tephritidae), the presence or absence of gut symbionts affects foraging behavior and nutrient ingestion. We offered protein-starved flies, symbiotic or aposymbiotic, a choice between diets containing all amino acids or only the non-essential ones. The different diets were presented in a foraging arena as drops that varied in their size and density, creating an imbalanced foraging environment. Suppressing the microbiome resulted in significant changes of the foraging behavior of both male and female flies. Aposymbiotic flies responded faster to the diets offered in experimental arenas, spent more time feeding, ingested more drops of food, and were constrained to feed on time-consuming patches (containing small drops of food), when these offered the full complement of amino acids. We discuss these results in the context of previous studies on the effect of the gut microbiome on host behavior, and suggest that these be extended to the life history dimension.
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Affiliation(s)
- Mazarin Akami
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
- Department of Biological Sciences, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
| | - Awawing A. Andongma
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Chen Zhengzhong
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Jiang Nan
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Kanjana Khaeso
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Edouard Jurkevitch
- Department of Microbiology and Plant Diseases, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Chang-Ying Niu
- Department of Plant Protection, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
- * E-mail: (BY); (CYN)
| | - Boaz Yuval
- Department of Entomology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- * E-mail: (BY); (CYN)
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Draft Genome Sequence of Erwinia dacicola, a Dominant Endosymbiont of Olive Flies. Microbiol Resour Announc 2018; 7:MRA01067-18. [PMID: 30533624 PMCID: PMC6256602 DOI: 10.1128/mra.01067-18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/14/2018] [Indexed: 11/21/2022] Open
Abstract
Erwinia dacicola is a dominant endosymbiont of the pestiferous olive fly. Its genome is similar in size and GC content to those of free-living Erwinia species, including the plant pathogen Erwinia amylovora. Erwinia dacicola is a dominant endosymbiont of the pestiferous olive fly. Its genome is similar in size and GC content to those of free-living Erwinia species, including the plant pathogen Erwinia amylovora. The E. dacicola genome encodes the metabolic capability to supplement and detoxify the olive fly’s diet in larval and adult stages.
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Engl T, Michalkova V, Weiss BL, Uzel GD, Takac P, Miller WJ, Abd-Alla AMM, Aksoy S, Kaltenpoth M. Effect of antibiotic treatment and gamma-irradiation on cuticular hydrocarbon profiles and mate choice in tsetse flies (Glossina m. morsitans). BMC Microbiol 2018; 18:145. [PMID: 30470188 PMCID: PMC6251160 DOI: 10.1186/s12866-018-1292-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Symbiotic microbes represent a driving force of evolutionary innovation by conferring novel ecological traits to their hosts. Many insects are associated with microbial symbionts that contribute to their host's nutrition, digestion, detoxification, reproduction, immune homeostasis, and defense. In addition, recent studies suggest a microbial involvement in chemical communication and mating behavior, which can ultimately impact reproductive isolation and, hence, speciation. Here we investigated whether a disruption of the microbiota through antibiotic treatment or irradiation affects cuticular hydrocarbon profiles, and possibly mate choice behavior in the tsetse fly, Glossina morsitans morsitans. Four independent experiments that differentially knock down the multiple bacterial symbionts of tsetse flies were conducted by subjecting tsetse flies to ampicillin, tetracycline, or gamma-irradiation and analyzing their cuticular hydrocarbon profiles in comparison to untreated controls by gas chromatography - mass spectrometry. In two of the antibiotic experiments, flies were mass-reared, while individual rearing was done for the third experiment to avoid possible chemical cross-contamination between individual flies. RESULTS All three antibiotic experiments yielded significant effects of antibiotic treatment (particularly tetracycline) on cuticular hydrocarbon profiles in both female and male G. m. morsitans, while irradiation itself had no effect on the CHC profiles. Importantly, tetracycline treatment reduced relative amounts of 15,19,23-trimethyl-heptatriacontane, a known compound of the female contact sex pheromone, in two of the three experiments, suggesting a possible implication of microbiota disturbance on mate choice decisions. Concordantly, both female and male flies preferred non-treated over tetracycline-treated flies in direct choice assays. CONCLUSIONS While we cannot exclude the possibility that antibiotic treatment had a directly detrimental effect on fly vigor as we are unable to recolonize antibiotic treated flies with individual symbiont taxa, our results are consistent with an effect of the microbiota, particularly the obligate nutritional endosymbiont Wigglesworthia, on CHC profiles and mate choice behavior. These findings highlight the importance of considering host-microbiota interactions when studying chemical communication and mate choice in insects.
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Affiliation(s)
- Tobias Engl
- Insect Symbiosis Research Group, Max Planck Institute for Chemical Ecology, Jena, Germany.
- Department for Evolutionary Ecology, Institute for Organismic and Molecular Evolution, Johannes Gutenberg-University Mainz, Mainz, Germany.
| | - Veronika Michalkova
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
- Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia
- Present Address: Department of Biological Sciences, Florida International University, Miami, FL, USA
| | - Brian L Weiss
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Güler D Uzel
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Austria
- Institute of Chemical, Environmental and Biological Engineering, Research Area Biochemical Technology, Vienna University of Technology, Vienna, Austria
| | - Peter Takac
- Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Wolfgang J Miller
- Laboratories of Genome Dynamics, Department Cell and Developmental Biology, Medical University of Vienna, Vienna, Austria
| | - Adly M M Abd-Alla
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food & Agriculture, Vienna, Austria
| | - Serap Aksoy
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Martin Kaltenpoth
- Insect Symbiosis Research Group, Max Planck Institute for Chemical Ecology, Jena, Germany.
- Department for Evolutionary Ecology, Institute for Organismic and Molecular Evolution, Johannes Gutenberg-University Mainz, Mainz, Germany.
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Estes AM, Hearn DJ, Agrawal S, Pierson EA, Dunning Hotopp JC. Comparative genomics of the Erwinia and Enterobacter olive fly endosymbionts. Sci Rep 2018; 8:15936. [PMID: 30374192 PMCID: PMC6205999 DOI: 10.1038/s41598-018-33809-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 10/04/2018] [Indexed: 11/09/2022] Open
Abstract
The pestivorous tephritid olive fly has long been known as a frequent host of the obligately host-associated bacterial endosymbiont, Erwinia dacicola, as well as other facultative endosymbionts. The genomes of Erwinia dacicola and Enterobacter sp. OLF, isolated from a California olive fly, encode the ability to supplement amino acids and vitamins missing from the olive fruit on which the larvae feed. The Enterobacter sp. OLF genome encodes both uricase and ureases, and the Er. dacicola genome encodes an allantoate transport pathway, suggesting that bird feces or recycling the fly's waste products may be important sources of nitrogen. No homologs to known nitrogenases were identified in either bacterial genome, despite suggestions of their presence from experiments with antibiotic-treated flies. Comparisons between the olive fly endosymbionts and their free-living relatives revealed similar GC composition and genome size. The Er. dacicola genome has fewer genes for amino acid metabolism, cell motility, and carbohydrate transport and metabolism than free-living Erwinia spp. while having more genes for cell division, nucleotide metabolism and replication as well as mobile elements. A 6,696 bp potential lateral gene transfer composed primarily of amino acid synthesis and transport genes was identified that is also observed in Pseudomonas savastanoii pv savastanoii, the causative agent of olive knot disease.
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Affiliation(s)
- Anne M Estes
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA. .,Department of Biological Sciences, Towson University, Baltimore, MD, 21252, USA.
| | - David J Hearn
- Department of Biological Sciences, Towson University, Baltimore, MD, 21252, USA
| | - Sonia Agrawal
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Elizabeth A Pierson
- Department of Horticultural Sciences, Texas A & M University, College Station, TX, 77843, USA
| | - Julie C Dunning Hotopp
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA. .,Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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Andongma AA, Wan L, Dong XP, Akami M, He J, Clarke AR, Niu CY. The impact of nutritional quality and gut bacteria on the fitness of Bactrocera minax (Diptera: Tephritidae). ROYAL SOCIETY OPEN SCIENCE 2018; 5:180237. [PMID: 30109079 PMCID: PMC6083673 DOI: 10.1098/rsos.180237] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
To examine how nutritional quality and resident gut bacteria interplay in improving the fitness of an oligophagous fruit fly, Bactrocera minax, artificial sucrose diets and full diets (sucrose, tryptone and yeast extract) were fed to flies with and without antibiotic supplementation. Furthermore, Klebsiella oxytoca and Citrobacter freundii were supplemented to sucrose-only diets. Flies were maintained in the laboratory and the fitness parameters, male and female longevity, number of copulations and female fecundity, were recorded. Full diet without bacterial depletion significantly increased fecundity and copulation. In the absence of gut bacteria, flies fed with full diets had significantly decreased mean fecundity and copulation rate. Flies that were fed with sucrose diet had a very low copulation rate and produced no eggs. Diet type and the presence of bacteria did not have any effect on the average longevity of male and female flies. Bacterial supplementation in sucrose diets did not improve any of the measured parameters. The results demonstrate that gut bacteria interact with diet to influence mating and reproduction in B. minax. Symbiotic bacteria significantly and positively impact reproduction in B. minax; however, their impact can only be fully realized when the flies are fed with a nutritionally complete diet.
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Affiliation(s)
- Awawing A. Andongma
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Lun Wan
- Hubei Center for Disease Control and Prevention, Zhuodaoquanbei Road 6, Wuhan, 430079, People's Republic of China
| | - Xue-ping Dong
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Mazarin Akami
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Jin He
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Anthony R. Clarke
- School of Earth, Environmental, and Biological Sciences, Queensland University of Technology, Brisbane, 4001 Queensland, Australia
| | - Chang-Ying Niu
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
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Deutscher AT, Burke CM, Darling AE, Riegler M, Reynolds OL, Chapman TA. Near full-length 16S rRNA gene next-generation sequencing revealed Asaia as a common midgut bacterium of wild and domesticated Queensland fruit fly larvae. MICROBIOME 2018; 6:85. [PMID: 29729663 PMCID: PMC5935925 DOI: 10.1186/s40168-018-0463-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 04/19/2018] [Indexed: 05/25/2023]
Abstract
BACKGROUND Gut microbiota affects tephritid (Diptera: Tephritidae) fruit fly development, physiology, behavior, and thus the quality of flies mass-reared for the sterile insect technique (SIT), a target-specific, sustainable, environmentally benign form of pest management. The Queensland fruit fly, Bactrocera tryoni (Tephritidae), is a significant horticultural pest in Australia and can be managed with SIT. Little is known about the impacts that laboratory-adaptation (domestication) and mass-rearing have on the tephritid larval gut microbiome. Read lengths of previous fruit fly next-generation sequencing (NGS) studies have limited the resolution of microbiome studies, and the diversity within populations is often overlooked. In this study, we used a new near full-length (> 1300 nt) 16S rRNA gene amplicon NGS approach to characterize gut bacterial communities of individual B. tryoni larvae from two field populations (developing in peaches) and three domesticated populations (mass- or laboratory-reared on artificial diets). RESULTS Near full-length 16S rRNA gene sequences were obtained for 56 B. tryoni larvae. OTU clustering at 99% similarity revealed that gut bacterial diversity was low and significantly lower in domesticated larvae. Bacteria commonly associated with fruit (Acetobacteraceae, Enterobacteriaceae, and Leuconostocaceae) were detected in wild larvae, but were largely absent from domesticated larvae. However, Asaia, an acetic acid bacterium not frequently detected within adult tephritid species, was detected in larvae of both wild and domesticated populations (55 out of 56 larval gut samples). Larvae from the same single peach shared a similar gut bacterial profile, whereas larvae from different peaches collected from the same tree had different gut bacterial profiles. Clustering of the Asaia near full-length sequences at 100% similarity showed that the wild flies from different locations had different Asaia strains. CONCLUSIONS Variation in the gut bacterial communities of B. tryoni larvae depends on diet, domestication, and horizontal acquisition. Bacterial variation in wild larvae suggests that more than one bacterial species can perform the same functional role; however, Asaia could be an important gut bacterium in larvae and warrants further study. A greater understanding of the functions of the bacteria detected in larvae could lead to increased fly quality and performance as part of the SIT.
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Affiliation(s)
- Ania T. Deutscher
- Present Address: Biosecurity and Food Safety, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW Australia
- Graham Centre for Agricultural Innovation (an alliance between NSW Department of Primary Industries and Charles Sturt University), Elizabeth Macarthur Agricultural Institute, Menangle, NSW Australia
| | - Catherine M. Burke
- School of Life Sciences, University of Technology Sydney, Sydney, NSW Australia
| | - Aaron E. Darling
- The ithree institute, University of Technology Sydney, Sydney, NSW Australia
| | - Markus Riegler
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW Australia
| | - Olivia L. Reynolds
- Present Address: Biosecurity and Food Safety, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW Australia
- Graham Centre for Agricultural Innovation (an alliance between NSW Department of Primary Industries and Charles Sturt University), Elizabeth Macarthur Agricultural Institute, Menangle, NSW Australia
| | - Toni A. Chapman
- Present Address: Biosecurity and Food Safety, NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW Australia
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Wang F, Chambi C, Li Z, Huang C, Ma Y, Li C, Tian X, Sangija F, Ntambo MS, Kankonda OM, Hafeez S, Anwar T, Sharif R. Influence of Supplemental Protein on the Life Expectancy and Reproduction of the Chinese Citrus Fruit Fly, Bactrocera minax (Enderlein) (Tetradacus minax) (Diptera: Tephritidae). JOURNAL OF INSECT SCIENCE (ONLINE) 2018; 18:4924853. [PMID: 29718487 PMCID: PMC5842393 DOI: 10.1093/jisesa/iey008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Indexed: 06/08/2023]
Abstract
Bactrocera minax (Enderlein) (Diptera: Tephritidae) is a major citrus pest in China, whose artificial rearing technology of the adult is not well documented to date. In this study, we tried to determine if supplementing proteins to the adult diet could result in the enhancement of some fitness parameters of B. minax. Four feeds with varying protein source were provided as F0 (water), F1 (sucrose), F2 (sucrose + yeast), and F3 (sucrose + peptone). F0 and F1 being the control, F2 and F3 were protein food types. The results showed that adults fed by F2 and F3 lived longer with 40.1 d and 32.8 d, respectively, had reduced death rates (death peaks were delayed for 5.6 d and 4.1 d, respectively), increased mating frequencies (8.1 and 5.3 per females, 4.7 and 7.3 per males, respectively), and longer mating durations (with 42 d and 34 d). In addition, females recorded an increased adult ovary development, more egg load (with 94.8 and 77.3 brood eggs per ovary) and to greater oviposition rates of 63.2 eggs/female and 19.3 eggs/female. Based on our results, protein supplements enhanced B. minax survival, mating, and fecundity. This study does not only provide basic knowledge to implement artificial rearing of B. minax, but also deepens our understanding on its physiology that could be used to enhance the management of the pest.
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Affiliation(s)
- Fulian Wang
- Hubei Collaborative Innovation Center for Grain Industry, Institute of Insect Sciences, College of Agriculture, Yangtze University, Jingzhou, China
| | - Consolatha Chambi
- Hubei Collaborative Innovation Center for Grain Industry, Institute of Insect Sciences, College of Agriculture, Yangtze University, Jingzhou, China
- Ministry of Agriculture, Livestock and Fisheries, Department of Land use Planning and Management, Dodoma, Tanzania
| | - Zaiyuan Li
- Hubei Collaborative Innovation Center for Grain Industry, Institute of Insect Sciences, College of Agriculture, Yangtze University, Jingzhou, China
| | - Cong Huang
- Hubei Collaborative Innovation Center for Grain Industry, Institute of Insect Sciences, College of Agriculture, Yangtze University, Jingzhou, China
| | - Yuekun Ma
- Hubei Collaborative Innovation Center for Grain Industry, Institute of Insect Sciences, College of Agriculture, Yangtze University, Jingzhou, China
| | - Chuanren Li
- Hubei Collaborative Innovation Center for Grain Industry, Institute of Insect Sciences, College of Agriculture, Yangtze University, Jingzhou, China
| | - Xiaohai Tian
- Engineering Research of Ecology and Agricultural Uses of Wetlands (China Ministry of Education), Yangtze University Jingzhou, Hubei, P.R. China
| | - Frank Sangija
- College of food science, Southwest University, Beibei Chongqing, China PRC
| | - Mbuya Sylvain Ntambo
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Onesime M Kankonda
- Laboratory of Ecology and Management of Animal Resources, Faculty of Sciences and Biodiversity Monitoring Center, University of Kisangani, Kisangani, Democratic Republic of Congo
| | - Sumaira Hafeez
- Engineering Research of Ecology and Agricultural Uses of Wetlands (China Ministry of Education), Yangtze University Jingzhou, Hubei, P.R. China
| | - Toheed Anwar
- Engineering Research of Ecology and Agricultural Uses of Wetlands (China Ministry of Education), Yangtze University Jingzhou, Hubei, P.R. China
| | - Rahat Sharif
- College of Horticulture, Northwest Agriculture and Forestry University, Yangling, China
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48
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Effect of gut bacteria on fitness of the Chinese citrus fly, Bactrocera minax (Diptera: Tephritidae). Symbiosis 2018. [DOI: 10.1007/s13199-018-0537-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Abstract
Symbiotic microorganisms can influence the fitness of their insect hosts by modulating pheromone production and perception.
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Affiliation(s)
- Tobias Engl
- Department of Evolutionary Ecology
- Institute of Organismic and Molecular Evolution
- Johannes Gutenberg University of Mainz
- 55128 Mainz
- Germany
| | - Martin Kaltenpoth
- Department of Evolutionary Ecology
- Institute of Organismic and Molecular Evolution
- Johannes Gutenberg University of Mainz
- 55128 Mainz
- Germany
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Zhao Y, Wang W, Zhu F, Wang X, Wang X, Lei C. The gut microbiota in larvae of the housefly Musca domestica and their horizontal transfer through feeding. AMB Express 2017; 7:147. [PMID: 28697583 PMCID: PMC5503848 DOI: 10.1186/s13568-017-0445-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/22/2017] [Indexed: 12/18/2022] Open
Abstract
House fly larvae provide a prolific and sustainable source of proteins used in poultry and fish feed. Wheat bran is a superior diet for house fly larvae and has been widely investigated to exploit its potential in the food and feed area. Using Illumina MiSeq 16S rDNA sequencing, this study investigated the gut microbiota of house fly larvae feeding on wheat bran and the bacterial community in the wheat bran. The bacterial communities in the house fly larvae were dominated by the phyla Proteobacteria and Firmicutes. Enterobacteriaceae and Providencia were the predominant bacteria at the family and genus levels, respectively. Some bacteria in the phyla Actinobacteria, Proteobacteria, Bacteroidetes and Firmicutes may be transferred from the gut of house flies to the wheat bran during feeding and may be involved in degrading and utilizing polysaccharides in the cell wall of wheat bran. The significance of the gut microbiota of house fly larvae, their transferring and roles in degradation of wheat bran is discussed. These findings regarding the gut microbiota of house fly larvae will provide opportunities for research on the impact of microbial communities on poultry and fish.
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