Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction

Abstract Obligate blood feeders, such as Cimex lectularius (common bed bug), have symbiotic associations with nutritional endosymbionts that produce B-vitamins. To quantify the symbiont’s contribution to host fitness in these obligate mutualisms, the symbiont must be eliminated and its absence rigor...

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Main Authors: Mauri L. Hickin, Madhavi L. Kakumanu, Coby Schal
Format: Article
Language:English
Published: Nature Portfolio 2022-06-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-14505-2
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author Mauri L. Hickin
Madhavi L. Kakumanu
Coby Schal
author_facet Mauri L. Hickin
Madhavi L. Kakumanu
Coby Schal
author_sort Mauri L. Hickin
collection DOAJ
description Abstract Obligate blood feeders, such as Cimex lectularius (common bed bug), have symbiotic associations with nutritional endosymbionts that produce B-vitamins. To quantify the symbiont’s contribution to host fitness in these obligate mutualisms, the symbiont must be eliminated and its absence rigorously confirmed. We developed and validated procedures for complete elimination of Wolbachia (Wb) in bed bugs and quantified development and reproduction in bed bugs with and without Wb and with and without B-vitamins supplementation. Aposymbiotic bed bugs had slower nymphal development, reduced adult survivorship, smaller adult size, fewer eggs per female, and lower hatch rate than bed bugs that harbored Wb. In aposymbiotic bed bugs that were fed B-vitamins-supplemented blood, nymph development time, adult survivorship and hatch rate recovered to control levels, but adult size and egg number only partially recovered. These results underscore the nutritional dependence of bed bugs on their Wb symbiont and suggest that Wb may provide additional nutritional benefits beyond the B-vitamin mix that we investigated.
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spelling doaj.art-908998d1a5e44aeb811150cea87d11bd2022-12-22T03:31:11ZengNature PortfolioScientific Reports2045-23222022-06-0112111410.1038/s41598-022-14505-2Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproductionMauri L. Hickin0Madhavi L. Kakumanu1Coby Schal2Department of Entomology and Plant Pathology, North Carolina State UniversityDepartment of Entomology and Plant Pathology, North Carolina State UniversityDepartment of Entomology and Plant Pathology, North Carolina State UniversityAbstract Obligate blood feeders, such as Cimex lectularius (common bed bug), have symbiotic associations with nutritional endosymbionts that produce B-vitamins. To quantify the symbiont’s contribution to host fitness in these obligate mutualisms, the symbiont must be eliminated and its absence rigorously confirmed. We developed and validated procedures for complete elimination of Wolbachia (Wb) in bed bugs and quantified development and reproduction in bed bugs with and without Wb and with and without B-vitamins supplementation. Aposymbiotic bed bugs had slower nymphal development, reduced adult survivorship, smaller adult size, fewer eggs per female, and lower hatch rate than bed bugs that harbored Wb. In aposymbiotic bed bugs that were fed B-vitamins-supplemented blood, nymph development time, adult survivorship and hatch rate recovered to control levels, but adult size and egg number only partially recovered. These results underscore the nutritional dependence of bed bugs on their Wb symbiont and suggest that Wb may provide additional nutritional benefits beyond the B-vitamin mix that we investigated.https://doi.org/10.1038/s41598-022-14505-2
spellingShingle Mauri L. Hickin
Madhavi L. Kakumanu
Coby Schal
Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction
Scientific Reports
title Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction
title_full Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction
title_fullStr Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction
title_full_unstemmed Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction
title_short Effects of Wolbachia elimination and B-vitamin supplementation on bed bug development and reproduction
title_sort effects of wolbachia elimination and b vitamin supplementation on bed bug development and reproduction
url https://doi.org/10.1038/s41598-022-14505-2
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