Insect Pathogen Interactions

A special issue of Microorganisms (ISSN 2076-2607).

Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 7956

Special Issue Editor


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Guest Editor
1. Faculty of Science and Technology, University of Nairobi, Nairobi, Kenya
2. Faculty of Natural Sciences I, Martin-Luther University Halle-Wittenberg, Halle, Saale, Germany
Interests: evolutionary biology; host–parasite interaction; social evolution; pollination; behavioural ecology; innate immune system; gene expression
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Special Issue Information

Dear Colleagues,

Insects are an extremely diverse class of animals with more than a million species described to date. Many of them have been utilized by humans for different purposes, like silkworms and honeybees, and more recently as a food source. A vast number of species have rather detrimental effects as insects and might function as disease vectors, destructive herbivores, and storage pests, amongst others.

Insects are hosts to a wide range of pathogens, amongst them viruses, bacteria, fungi, protozoans, and helminths. Insects have evolved a spectrum of mechanisms to deal with pathogens with external defenses as secretions from a number of glands, internal defenses as the innate immune system, and interactions of symbionts (e.g., Wolbachia) with pathogens reducing the transmission rate of the pathogen, and the diverse community of gut microbiota also shows interactive effects with intestinal pathogens. On the other hand, pathogenic microorganisms have evolved counter-adaptations to evade host responses.

This Special Issue aims at illuminating the range of interactions between insect hosts and their pathogens. We are aiming at highlighting the mechanisms used by the hosts to reduce their load with pathogens, as well as the counter-responses by pathogens to circumvent their detection and removal.

PD Dr. H. Michael G. Lattorff
Guest Editor

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Keywords

  • Gut microbiome
  • Endosymbionts
  • Innate immune system
  • External immunity
  • Wolbachia
  • Immune evasion
  • Disease vectors
  • Counter-adaptation

Published Papers (1 paper)

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Research

21 pages, 2498 KiB  
Article
Different Dynamics of Bacterial and Fungal Communities in Hive-Stored Bee Bread and Their Possible Roles: A Case Study from Two Commercial Honey Bees in China
by Terd Disayathanoowat, HuanYuan Li, Natapon Supapimon, Nakarin Suwannarach, Saisamorn Lumyong, Panuwan Chantawannakul and Jun Guo
Microorganisms 2020, 8(2), 264; https://doi.org/10.3390/microorganisms8020264 - 15 Feb 2020
Cited by 45 | Viewed by 7161
Abstract
This study investigated both bacterial and fungal communities in corbicular pollen and hive-stored bee bread of two commercial honey bees, Apis mellifera and Apis cerana, in China. Although both honey bees favor different main floral sources, the dynamics of each microbial community [...] Read more.
This study investigated both bacterial and fungal communities in corbicular pollen and hive-stored bee bread of two commercial honey bees, Apis mellifera and Apis cerana, in China. Although both honey bees favor different main floral sources, the dynamics of each microbial community is similar. During pH reduction in hive-stored bee bread, results from conventional culturable methods and next-generation sequencing showed a declining bacterial population but a stable fungal population. Different honey bee species and floral sources might not affect the core microbial community structure but could change the number of bacteria. Corbicular pollen was colonized by the Enterobacteriaceae bacterium (Escherichia-Shiga, Panteoa, Pseudomonas) group; however, the number of bacteria significantly decreased in hive-stored bee bread in less than 72 h. In contrast, Acinetobacter was highly abundant and could utilize protein sources. In terms of the fungal community, the genus Cladosporium remained abundant in both corbicular pollen and hive-stored bee bread. This filamentous fungus might encourage honey bees to reserve pollen by releasing organic acids. Furthermore, several filamentous fungi had the potential to inhibit both commensal/contaminant bacteria and the growth of pathogens. Filamentous fungi, in particular, the genus Cladosporium, could support pollen preservation of both honey bee species. Full article
(This article belongs to the Special Issue Insect Pathogen Interactions)
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