Evidence for Widespread Associations between Neotropical Hymenopteran Insects and Actinobacteria

Frontiers in Microbiology
Bernal Matarrita-CarranzaAdrian Pinto-Tomas

Abstract

The evolutionary success of hymenopteran insects has been associated with complex physiological and behavioral defense mechanisms against pathogens and parasites. Among these strategies are symbiotic associations between Hymenoptera and antibiotic-producing Actinobacteria, which provide protection to insect hosts. Herein, we examine associations between culturable Actinobacteria and 29 species of tropical hymenopteran insects that span five families, including Apidae (bees), Vespidae (wasps), and Formicidae (ants). In total, 197 Actinobacteria isolates were obtained from 22 of the 29 different insect species sampled. Through 16S rRNA gene sequences of 161 isolates, we show that 91% of the symbionts correspond to members of the genus Streptomyces with less common isolates belonging to Pseudonocardia and Amycolatopsis. Electron microscopy revealed the presence of filamentous bacteria with Streptomyces morphology in brood chambers of two different species of the eusocial wasps. Four fungal strains in the family Ophiocordycipitacea (Hypocreales) known to be specialized insect parasites were also isolated. Bioassay challenges between the Actinobacteria and their possible targeted pathogenic antagonist (both obtained from the same in...Continue Reading

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Citations

Nov 5, 2019·Applied and Environmental Microbiology·Eric J CalderaCameron R Currie
Mar 3, 2020·Frontiers in Microbiology·Zhiyan WangWensheng Xiang
Jun 23, 2018·Applied Microbiology and Biotechnology·Marie-Ève Lacombe-HarveyCarole Beaulieu
Nov 1, 2020·Applied Microbiology and Biotechnology·Juan Guzman, Andreas Vilcinskas
Feb 16, 2021·Antonie van Leeuwenhoek·Bernal Matarrita-CarranzaAdrián A Pinto-Tomás
May 26, 2021·Critical Reviews in Microbiology·Laurence Van MollLeen Van Campenhout
Aug 10, 2021·Microbial Ecology·Nicholas V TravantyLoganathan Ponnusamy

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Methods Mentioned

BETA
PCR

Software Mentioned

Cipress Science Gateway
mothur
MEGA
Adobe Illustrator
GUIDANCE
FigTree
R package - bipartite
MrBayes
Geneious
jModelTest2

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