ESM 2022 poster: Patterns of bacterial-fungal co-occurrence in European beech (Fagus sylvatica L.) deadwood

For those that were not able to attend the Ecology of Soil Microorganisms 2022 conference (which ran from 19-23 July in Prague, Czech Republic) I got permission to upload the poster which I presented. Being a scientist can also mean doing a bit of public speaking and graphic design. Below, you will find the abstract and poster.

Patterns of bacterial-fungal co-occurrence in European beech (Fagus sylvatica L.) deadwood

Jason Bosch, Ema Némethová, Vojtěch Tláskal, Vendula Brabcová, Petr Baldrian

Deadwood represents an important nutrient source and microbial habitat in forest ecosystems. Its decomposition is one of the key processes of global carbon turnover considering that European natural forests can contain up to 1200 m3 of deadwood per hectare. This deadwood is primarily decomposed by saprotrophic fungi but bacteria also have a role to play, particularly in the provision of nitrogen. Previous work has shown that the first fungi to become established will physically prevent further colonisation by other fungi. As bacteria and fungi can interact in both synergistic and antagonistic ways, we expect that these fungal zones of control will also influence the bacterial community composition at local scales.

We investigated the patterns of microbial diversity and co-occurrence in 1 cm3 blocks of European beech (Fagus sylvatica L.) deadwood collected from the Žofínský prales National Nature Reserve in the Czech Republic, using 16S and ITS amplicon sequencing. Compared to previously-collected “whole log” communities, the small-scale communities showed less diversity both individually and in combination. By correlating fungal and bacterial species, we were able to expand on previous work which showed that fungi influence bacterial community composition. As small-scale microbial communities collected from the same log can differ dramatically from one another, we advise caution when interpreting “whole log” microbial community data as the results may not reflect the actual interactions which take place in the deadwood.

If you would like to cite the poster, you can use the abstract book citation:

Piché Choquette S., Slaninová Kyselková M., Pospíšek M., Baldrian P. (Eds.), 2022. Ecology of Soil Microorganisms – Book of Abstracts, Prague, June 19 – 23, 2022.

Field trip to the Namib Desert – April 2021

The Namib Sand Sea

The Centre for Microbial Ecology and Genomics, where I currently work, has an annual trip to the Namib Desert for sampling purposes and, while it didn’t happen last year due to the COVID-19 pandemic, I was part of this year’s team. It was my first visit to both Namibia and the Namib Desert as well as my first field work since my SANBI internship many years ago.

Gobabeb and the Namib Desert

After flying in and spending one night in Walvis Bay, we were based at Gobabeb-Namib Research Station. It’s small research institution which has been running for several decades and hosts visitors from all over the world who wish to study the desert and its organisms. I found the accommodation there to be comfortable, the food tasty (and plentiful) and the staff very friendly. The only negative was the lack of a decent internet connection, meaning that I essentially spent my time there off the grid.

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Quicklinks: Bacteria, seafood and dolphins

I’m fairly busy this week so I’m not likely to have time to post anything substantial before Sunday. I don’t like this sitting empty though so I’ve found some more interesting links to share.

You might remember from earlier that I’m rather interested in how we live with bacteria. On that topic I saw two interesting articles lately. The first suggests that the bacteria living in your gut may play a role in your susceptibility to melamine poisoning and the second looks at how the bacteria living on our teeth have changed and what the effects of that have been.

Then there’s a bit about whether seafood feels pain. It’s interesting for me because I became a vegetarian for just those concerns. I’m confident other mammals feel pain and suffer just like us but it’s much harder to say anything about creatures that diverged much further back in time. In the end I decided it was just easier to cut out the grey areas by not eating any animals but it is good to know for certain.

Still in the sea, here are some more entertaining links. 10 reasons why dolphins are undeniably awesome and 10 reasons why dolphins are assholes.