Marie Legein - The greenhouse phyllosphere microb and associations with bumblebees... | S02 MVIF11 скачать в хорошем качестве

Marie Legein - The greenhouse phyllosphere microb and associations with bumblebees... | S02 MVIF11

Title of the presentation: The greenhouse phyllosphere microbiome and associations with introduced bumblebees and predatory mites Speaker: Marie Legein More info on this event, here: https://www.microbiome-vif.org/en-US/... Join us at the next meeting (free registration!): https://www.microbiome-vif.org/ And you can join us on Twitter:   / microbiomevif   Abstract of this talk: Greenhouses are highly productive environments in which conditions are regulated to optimize plant growth. The enclosed character of greenhouses usually results in reduced microbial diversity, while it is known that a diverse microbiome is important for plant health. Therefore, we explored the phyllosphere microbiome of tomatoes and strawberries grown in greenhouses. We observed that the microbiome of both crops was low in diversity and abundance, and varied considerably over time and space. Interestingly, the core taxa of tomatoes were Snodgrasella and Gilliamella, genera typically associated with bumblebees. The same amplicon sequence variants (ASVs) were found on reared bumblebees, indicating that bumblebees, present in the sampled greenhouses to pollinate flowers, had introduced and dispersed these bacteria in greenhouses. Overall, we found that 80% of plants contained bumblebee-associated taxa, and on these plants, bumblebee-associated reads accounted up to a quarter of reads on tomatoes and a tenth of reads on strawberries. Furthermore, predatory mites had been introduced for the control of spider mites. Their microbiome was composed of a diverse set of bacteria, which varied between batches ordered at different times. Still, identical ASVs were found on mites and crops and these belonged to the genera Sphingomonas, Staphylococcus, Methylobacterium and Pseudomonas. These new insights should now be further explored and utilized to diversify these ecosystems that are characterized by low diversity and abundancy of microbes.