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Tetreau G, Dhinaut J, Galinier R, Audant-Lacour P, Voisin SN, Arafah K, Chogne M, Hilliou F, Bordes A, Sabarly C, Chan P, Walet-Balieu ML, Vaudry D, Duval D, Bulet P, Coustau C, Moret Y, Gourbal B. Deciphering the molecular mechanisms of mother-to-egg immune protection in the mealworm beetle Tenebrio molitor. PLoS Pathog 2020; 16:e1008935. [PMID: 33057453 PMCID: PMC7591081 DOI: 10.1371/journal.ppat.1008935] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 10/27/2020] [Accepted: 08/28/2020] [Indexed: 12/19/2022] Open
Abstract
In a number of species, individuals exposed to pathogens can mount an immune response and transmit this immunological experience to their offspring, thereby protecting them against persistent threats. Such vertical transfer of immunity, named trans-generational immune priming (TGIP), has been described in both vertebrates and invertebrates. Although increasingly studied during the last decade, the mechanisms underlying TGIP in invertebrates are still elusive, especially those protecting the earliest offspring life stage, i.e. the embryo developing in the egg. In the present study, we combined different proteomic and transcriptomic approaches to determine whether mothers transfer a "signal" (such as fragments of infecting bacteria), mRNA and/or protein/peptide effectors to protect their eggs against two natural bacterial pathogens, namely the Gram-positive Bacillus thuringiensis and the Gram-negative Serratia entomophila. By taking the mealworm beetle Tenebrio molitor as a biological model, our results suggest that eggs are mainly protected by an active direct transfer of a restricted number of immune proteins and of antimicrobial peptides. In contrast, the present data do not support the involvement of mRNA transfer while the transmission of a "signal", if it happens, is marginal and only occurs within 24h after maternal exposure to bacteria. This work exemplifies how combining global approaches helps to disentangle the different scenarios of a complex trait, providing a comprehensive characterization of TGIP mechanisms in T. molitor. It also paves the way for future alike studies focusing on TGIP in a wide range of invertebrates and vertebrates to identify additional candidates that could be specific to TGIP and to investigate whether the TGIP mechanisms found herein are specific or common to all insect species.
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Affiliation(s)
- Guillaume Tetreau
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
| | - Julien Dhinaut
- Équipe Écologie Évolutive, UMR CNRS 6282 BioGéoSciences, Université Bourgogne-Franche Comté, Dijon, France
| | - Richard Galinier
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
| | - Pascaline Audant-Lacour
- CNRS, INRAE, Université Nice Côte d’Azur, UMR 1355–7254 Institut Sophia Agrobiotech, Sophia Antipolis, France
| | | | - Karim Arafah
- Plateforme BioPark d'Archamps, ArchParc, Saint Julien en Genevois, France
| | - Manon Chogne
- Équipe Écologie Évolutive, UMR CNRS 6282 BioGéoSciences, Université Bourgogne-Franche Comté, Dijon, France
| | - Frédérique Hilliou
- CNRS, INRAE, Université Nice Côte d’Azur, UMR 1355–7254 Institut Sophia Agrobiotech, Sophia Antipolis, France
| | - Anaïs Bordes
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
| | - Camille Sabarly
- Équipe Écologie Évolutive, UMR CNRS 6282 BioGéoSciences, Université Bourgogne-Franche Comté, Dijon, France
| | - Philippe Chan
- PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - Marie-Laure Walet-Balieu
- PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - David Vaudry
- PISSARO Proteomic Platform, Institute for Research and Innovation in Biomedicine, University of Rouen, Rouen, France
| | - David Duval
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
| | - Philippe Bulet
- Plateforme BioPark d'Archamps, ArchParc, Saint Julien en Genevois, France
- CR Université Grenoble Alpes, Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, La Tronche, France
| | - Christine Coustau
- CNRS, INRAE, Université Nice Côte d’Azur, UMR 1355–7254 Institut Sophia Agrobiotech, Sophia Antipolis, France
| | - Yannick Moret
- Équipe Écologie Évolutive, UMR CNRS 6282 BioGéoSciences, Université Bourgogne-Franche Comté, Dijon, France
| | - Benjamin Gourbal
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
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Vivero RJ, Mesa GB, Robledo SM, Herrera CXM, Cadavid-Restrepo G. Enzymatic, antimicrobial, and leishmanicidal bioactivity of gram-negative bacteria strains from the midgut of Lutzomyia evansi, an insect vector of leishmaniasis in Colombia. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2019; 24:e00379. [PMID: 31641623 PMCID: PMC6796522 DOI: 10.1016/j.btre.2019.e00379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/15/2019] [Accepted: 09/15/2019] [Indexed: 02/03/2023]
Abstract
Knowledge regarding new compounds, peptides, and/or secondary metabolites secreted by bacteria isolated from the intestine of phebotominae has the potential to control insect vectors and pathogens (viruses, bacteria, and parasites) transmitted by them. In this respect, twelve Gram-negative bacteria isolated from the intestine of Lutzomyia evansi were selected and screened for their enzymatic, antimicrobial, and leishmanicidal activity. E. cancerogenus, E. aerogenes, P. otitidis, E. cloacae, L. soli, and P. ananatis exhibited enzymatic activity. 83.3% of the isolates displayed lipolytic and nitrate reductase activity and 58.3% of the isolates displayed protease activity. Hemolytic activity (17%) was identified only in E. hormaechei, and P. ananatis. E. cancerogenus, A. calcoaceticus, and P. otitidis showed cellulolytic activity. A. gyllenbergii, P. aeruginosa, and E. hormaechei showed amylolytic activity. In general, the totality of methanolic extracts exhibited antimicrobial activity, where E. hormaechei, A. calcoaceticus, and E. cancerogenus presented the highest activity against the evaluated reference bacteria strains. Cell-free supernatants (CFSS) of the Gram-negative bacteria showed higher growth inhibitory activity against the reference Gram-positive bacteria. The CFS of A. gyllenbergii was the most active antimicrobial in this study, against S. aureus (AAODs = 95.12%) and E. faecalis (AAODs = 86.90%). The inhibition percentages of CFS against Gram-positive bacteria showed statistically significant differences (repeated measure ANOVA df= 2; F= 6.095; P= 0.007832). The E. hormaechei methanolic extract showed leishmanicidal activity (CE-50 μg/ml = 47.7 + 3.8) against metacyclic promastigotes of Leishmania braziliensis (UA301). Based on this finding, we discuss the possible implications of these bacteria in digestion and physiological processes in the Lu. evansi intestine. P. ananatis, E. cloacae, E. hormaechei, and P. otitidis were considered the most promising bacteria in this study and they could potentially be used for biological control.
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Affiliation(s)
- Rafael J. Vivero
- Grupo de Microbiodiversidad y Bioprospección, Laboratorio de Biología Celular y Molecular, Universidad Nacional de Colombia, Sede Medellín, Colombia, Street 59 A # 63-20, Medellín 050003, Colombia
- PECET (Programa de Estudio y Control de Enfermedades Tropicales), Universidad de Antioquia, Medellín, Colombia, Laboratory 632, Medellín 050003, Colombia
| | - Gustavo Bedoya Mesa
- Grupo de Microbiodiversidad y Bioprospección, Laboratorio de Biología Celular y Molecular, Universidad Nacional de Colombia, Sede Medellín, Colombia, Street 59 A # 63-20, Medellín 050003, Colombia
| | - Sara M. Robledo
- PECET (Programa de Estudio y Control de Enfermedades Tropicales), Universidad de Antioquia, Medellín, Colombia, Laboratory 632, Medellín 050003, Colombia
| | - Claudia Ximena Moreno Herrera
- Grupo de Microbiodiversidad y Bioprospección, Laboratorio de Biología Celular y Molecular, Universidad Nacional de Colombia, Sede Medellín, Colombia, Street 59 A # 63-20, Medellín 050003, Colombia
| | - Gloria Cadavid-Restrepo
- Grupo de Microbiodiversidad y Bioprospección, Laboratorio de Biología Celular y Molecular, Universidad Nacional de Colombia, Sede Medellín, Colombia, Street 59 A # 63-20, Medellín 050003, Colombia
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Vigneron A, Jehan C, Rigaud T, Moret Y. Immune Defenses of a Beneficial Pest: The Mealworm Beetle, Tenebrio molitor. Front Physiol 2019; 10:138. [PMID: 30914960 PMCID: PMC6422893 DOI: 10.3389/fphys.2019.00138] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/07/2019] [Indexed: 12/04/2022] Open
Abstract
The mealworm beetle, Tenebrio molitor, is currently considered as a pest when infesting stored grains or grain products. However, mealworms are now being promoted as a beneficial insect because their high nutrient content makes them a viable food source and because they are capable of degrading polystyrene and plastic waste. These attributes make T. molitor attractive for mass rearing, which may promote disease transmission within the insect colonies. Disease resistance is of paramount importance for both the control and the culture of mealworms, and several biotic and abiotic environmental factors affect the success of their anti-parasitic defenses, both positively and negatively. After providing a detailed description of T. molitor's anti-parasitic defenses, we review the main biotic and abiotic environmental factors that alter their presentation, and we discuss their implications for the purpose of controlling the development and health of this insect.
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Affiliation(s)
- Aurélien Vigneron
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, United States
| | - Charly Jehan
- UMR CNRS 6282 BioGéoSciences, Équipe Écologie Évolutive, Université Bourgogne-Franche Comté, Dijon, France
| | - Thierry Rigaud
- UMR CNRS 6282 BioGéoSciences, Équipe Écologie Évolutive, Université Bourgogne-Franche Comté, Dijon, France
| | - Yannick Moret
- UMR CNRS 6282 BioGéoSciences, Équipe Écologie Évolutive, Université Bourgogne-Franche Comté, Dijon, France
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Savini F, Bobone S, Roversi D, Mangoni ML, Stella L. From liposomes to cells: Filling the gap between physicochemical and microbiological studies of the activity and selectivity of host‐defense peptides. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24041] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Filippo Savini
- Department of Chemical Science and TechnologiesUniversity of Rome Tor VergataRome00133 Italy
| | - Sara Bobone
- Department of Chemical Science and TechnologiesUniversity of Rome Tor VergataRome00133 Italy
| | - Daniela Roversi
- Department of Chemical Science and TechnologiesUniversity of Rome Tor VergataRome00133 Italy
| | - Maria Luisa Mangoni
- Department of Biochemical Sciences, Laboratory affiliated to Pasteur Italia‐Fondazione Cenci BolognettiSapienza University of RomeRome, via degli Apuli9‐00185 Italy
| | - Lorenzo Stella
- Department of Chemical Science and TechnologiesUniversity of Rome Tor VergataRome00133 Italy
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