Inhibitory and nutrient use phenotypes among coexisting Fusarium and Streptomyces populations suggest local coevolutionary interactions in soil

Adil Essarioui, Nicholas LeBlanc, Lindsey K Hanson, Daniel Cameron Schlatter, Harold Corby Kistler, Linda L Kinkel

Research output: Contribution to journalArticle

Abstract

Bacteria and fungi are key components of virtually all natural habitats, yet the significance of fungal-bacterial inhibitory interactions for the ecological and evolutionary dynamics of specific bacterial and fungal populations in natural habitats have been overlooked. More specifically, despite the broad consensus that antibiotics play a key role in providing a fitness advantage to competing microbes, the significance of antibiotic production in mediating cross-kingdom coevolutionary interactions has received relatively little attention. Here, we characterize reciprocal inhibition among Streptomyces and Fusarium populations from prairie soil, and explore antibiotic inhibition in relation to niche overlap among sympatric and allopatric populations. We found evidence for local adaptation between Fusarium and Streptomyces populations as indicated by significantly greater inhibition among sympatric than allopatric populations. Additionally, for both taxa, there was a significant positive correlation between the strength of inhibition against the other taxon and the intensity of resource competition from that taxon among sympatric but not allopatric populations. These data suggest that coevolutionary antagonistic interactions between Fusarium and Streptomyces are driven by resource competition, and support the hypothesis that antibiotics act as weapons in mediating bacterial–fungal interactions in soil.

Original languageEnglish (US)
JournalEnvironmental microbiology
DOIs
StateAccepted/In press - Jan 1 2019

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nutrient use
Streptomyces
Fusarium
antibiotics
phenotype
allopatry
Soil
Phenotype
Food
nutrients
Population
Anti-Bacterial Agents
soil
prairie soils
niche overlap
Ecosystem
local adaptation
weapon
habitat
resource

PubMed: MeSH publication types

  • Journal Article

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Inhibitory and nutrient use phenotypes among coexisting Fusarium and Streptomyces populations suggest local coevolutionary interactions in soil. / Essarioui, Adil; LeBlanc, Nicholas; Hanson, Lindsey K; Schlatter, Daniel Cameron; Kistler, Harold Corby; Kinkel, Linda L.

In: Environmental microbiology, 01.01.2019.

Research output: Contribution to journalArticle

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