The impact of fruit fly gut bacteria on the rearing of the parasitic wasp Diachasmimorpha longicaudata

Panagiota Koskinioti, Erica Ras, Antonios A. Augustinos, Leo W. Beukeboom, Kostas D. Mathiopoulos, Carlos Caceres, Kostas Bourtzis*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)
121 Downloads (Pure)

Abstract

Area-wide integrated pest management strategies against tephritid fruit flies include the release of fruit fly parasitic wasps in the target area. Mass rearing of parasitic wasps is essential for the efficient application of biological control strategies. Enhancement of fruit fly host fitness through manipulation of their gut-associated symbionts might also enhance the fitness of the produced parasitic wasps and improve the parasitoid rearing system. In the current study, we added three gut bacterial isolates originating from Ceratitis capitata (Wiedemann) and four originating from Bactrocera oleae (Rossi) (both Diptera: Tephritidae) to the larval diet of C. capitata and used the bacteria-fed larvae as hosts for the development of the parasitic wasp Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae). We evaluated the effect of the bacteria on wasp life-history traits and assessed their potential use for the improvement of D. longicaudata rearing. Enterobactersp. AA26 increased fecundity and parasitism rate and accelerated parasitoid emergence. Providencia sp. AA31 led to faster emergence of both male and female parasitoids, whereas Providencia sp. 22 increased the production of female progeny. Bacillus sp. 139 increased parasitoid fecundity, parasitism rate, and production of female progeny. Serratia sp. 49 accelerated parasitoid emergence for both males and females and increased production of female progeny. Klebsiella oxytoca delayed parasitoid emergence and Enterobacter sp. 23 decreased parasitoid fecundity and parasitism rate. Our findings demonstrate a wide range of effects of fruit fly gut symbionts on parasitoid production and reveal a great potential of bacteria use towards enhancement of parasitic wasp rearing.

Original languageEnglish
Pages (from-to)541-559
Number of pages19
JournalEntomologia Experimentalis et Applicata
Volume168
Issue number6-7
Early online date19-Jun-2020
DOIs
Publication statusPublished - Jul-2020

Keywords

  • microbiome
  • symbiosis
  • area-wide integrated pest management
  • sterile insect technique
  • SIT
  • biological control
  • Tephritidae
  • olive fruit fly
  • Mediterranean fruit fly
  • Braconidae
  • parasitoid
  • Hymenoptera
  • Diachasmimorpha longicaudata
  • parasitic wasp
  • PSYTTALIA-FLETCHERI HYMENOPTERA
  • DIPTERA TEPHRITIDAE POPULATION
  • DIACHASMIMORPHA-LONGICAUDATA
  • CERATITIS-CAPITATA
  • AUGMENTATIVE RELEASES
  • ASHMEAD HYMENOPTERA
  • BIOLOGICAL-CONTROL
  • FOPIUS-ARISANUS
  • FLIES DIPTERA
  • OLIVE FLY

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