Plant-Microbe interactions

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Studying the interactions between Streptomyces bacteria and plant roots

In recent years it has become clear that actinomycete bacteria like Streptomyces species are not simply free-living soil bacteria. They also interact with plant roots and can colonise the rhizosphere and endosphere (inside the roots). For example, they are highly enriched inside the roots of bread wheat plants, which are a staple crop for humans (Prudence et al, 2021). This is fascinating because it helps us understand the natural ecology of these bacteria and their natural products - i.e. why they evolved, how they are regulated - and also because they may have uses as plant beneficial bacteria, e.g., by incorporating Streptomyces spores into seed coatings.

Protocols

Marchantia protocols

Wheat protocols

Further Reading

Worsley SF et al (2021). Investigating the role of root exudates in recruiting Streptomyces bacteria to the Arabidopsis thaliana microbiome. Frontiers in Molecular Bioscience, 8:686110. https://pubmed.ncbi.nlm.nih.gov/34222338/

Prudence, Newitt et al (2021). Soil, senescence and exudate utilisation: Characterisation of the Paragon var. spring bread wheat root microbiome. Environmental Microbiome 16:12. https://pubmed.ncbi.nlm.nih.gov/34154664/

Worsley et al (2020). Streptomyces Endophytes Promote Host Health and Enhance Growth across Plant Species. Appl Env Microbiol. 86:e01053-20. https://pubmed.ncbi.nlm.nih.gov/32561579/

Newitt et al (2019). Biocontrol of cereal crop diseases using streptomycetes. Pathogens. 8:78. https://pubmed.ncbi.nlm.nih.gov/31200493/

Kim et al (2019). A mutualistic interaction between Streptomyces bacteria, strawberry plants and pollinating bees. Nature Comms. 22:4802 https://pubmed.ncbi.nlm.nih.gov/31641114/

Rey and Dumas (2017). Plenty Is No Plague: Streptomyces Symbiosis with Crops. Trends Plant Sci. 22:30-37. https://pubmed.ncbi.nlm.nih.gov/27916552/

van der Meij, Worsley et al (2017). Chemical ecology of antibiotic production by actinomycetes. FEMS Microbiol Rev. 41: 392-416. https://pubmed.ncbi.nlm.nih.gov/28521336/

Seipke et al (2011). Streptomyces as symbionts; a new and emerging theme? FEMS Microbiol Rev. 36:867-76. https://pubmed.ncbi.nlm.nih.gov/22091965/