Journal article
Characterization of the gut bacterial community in Manduca sexta and effect of antibiotics on bacterial diversity and nematode reproduction
FEMS microbiology letters, Vol.286(2), pp.249-256
09/2008
DOI: 10.1111/j.1574-6968.2008.01277.x
PMID: 18647359
Abstract
The tobacco hornworm, Manduca sexta, is a model lepidopteran insect used to study the pathogenic and mutualistic phases of entomopathogenic nematodes (EPNs) and their bacterial symbionts. While intestinal microbial communities could potentially compete with the EPN and its bacterial partner for nutrient resources of the insect, the microbial gut community had not been characterized previously. Here, we show that the midgut of M. sexta raised on an artificial diet contained mostly Gram-positive cocci and coryneforms including Staphylococcus, Pediococcus, Micrococcus and Corynebacterium. Major perturbation in the gut community was observed on addition of antibiotics to the diet. Paenibacillus and several Proteobacteria such as Methylobacterium, Sphingomonas and Acinetobacter were primary genera identified under these conditions. Furthermore, the reproduction of the nematode Steinernema carpocapsae was less efficient, and the level of nematode colonization by its symbiont Xenorhabdus nematophila reduced, in insects reared on a diet containing antibiotics. The effect of antibiotics and perturbation of gut microbiota on nematode reproduction is discussed.
Details
- Title: Subtitle
- Characterization of the gut bacterial community in Manduca sexta and effect of antibiotics on bacterial diversity and nematode reproduction
- Creators
- Ransome van der Hoeven - University of Wisconsin–MilwaukeeGeeta Betrabet - University of Wisconsin–MilwaukeeSteven Forst - University of Wisconsin–Milwaukee
- Resource Type
- Journal article
- Publication Details
- FEMS microbiology letters, Vol.286(2), pp.249-256
- Publisher
- Oxford Univ Press
- DOI
- 10.1111/j.1574-6968.2008.01277.x
- PMID
- 18647359
- ISSN
- 0378-1097
- eISSN
- 1574-6968
- Number of pages
- 8
- Language
- English
- Date published
- 09/2008
- Academic Unit
- Dental Research; Periodontics
- Record Identifier
- 9984738102302771
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