vojtech_schmidt

Last month marked the end of my time at @PetrasekLab at @UEBavcr in Prague. Huge thanks to everyone there for the support, guidance, and the wonderful family-like atmosphere!

Symplastic auxin flow shapes branching of moss gametophores! I was happy to contribute to this exciting work of Jeanne and Yoan. 👇 sciencedirect.com/science/articl…

It’s been a long but exciting journey — a few days ago I successfully defended my PhD thesis on the evolutionary origins of auxin action, carried out in the Petrášek Lab. Huge thanks to @Isabel_MonteG and @Bishopp_Lab for coming to Prague and for being such wonderful reviewers!

📣A new preprint from our group! No, this is not an image of some strange octopus but an anti-CbPINa staining in the antheridial filament of streptophyte alga Chara braunii. If you want to know more about auxin and PINs in Chara check out it at: biorxiv.org/content/10.110…

@shivmani_d @PetrasekLab Thank you, Shiv Mani!

@SchmidtVojtech @PetrasekLab Congrats Vojtech!!

Some compounds we know as plant hormones are widespread in green algae. Check out our comprehensive phytohormone profiling of #streptophyte #algae and more, now published in @NatureComms 🧵⬇️ #phytohormones #evolution @PetrasekLab doi.org/10.1038/s41467…

@thdpaepe @NatureComms @PetrasekLab Great to have you on this! :)

@SchmidtVojtech @NatureComms @PetrasekLab Thanks to you, Roman and Jan for including us!! Amazing work, happy to have been part of it!!

@Jan_de_Vries @PetrasekLab @NatureComms Thanks, Jan! :)

@PetrasekLab @NatureComms @SchmidtVojtech Congrats—nice to see the journal paper version out there 🙂🎉

We’re thrilled to announce our phytohormone profiling study spanning the plant kingdom is now published in @NatureComms! Dive into an accessible summary in this thread by lead author @SchmidtVojtech. ⬇️

@dudelbem @NatureComms @PetrasekLab Big thanks! :)

@SchmidtVojtech @NatureComms @PetrasekLab Congrats! Really cool!

@miret_javier In algae, we found ABA only at stationary phase, so it's not a complete absence in these, but still not consistent as in plants. Of course it might be accumulated upon certain stimuli. And if algae respond to ABA, it's not via the canonical plant pathway. pnas.org/doi/full/10.10…

@SchmidtVojtech The lack of ABA is curious, it is known that in animals (all the way from sponges to humans) it is also synthesised with regulatory roles. Tossi et al 2012 Trends Plant Sci An open copy ri.conicet.gov.ar/bitstream/hand…

[3/10: How?] Focusing on sterptophyte algae, we used LC/MS and laser spectroscopy for a detailed phytohormone analysis, with comprehensive sampling strategy including not only biomass, but also culture media and control (blank) media, accounting for excretion and background.

@NKWhiteman @NatureComms @PetrasekLab Thank you, Noah!

@KatarzynaRetzer @NatureComms @PetrasekLab Thanks, Kati!

@PoletCarrillo1 @NatureComms @PetrasekLab Thanks Polet! ^^

@SchmidtVojtech @NatureComms @PetrasekLab Congrats!

[10/10:] We hope this work will serve as a stepping stone for such follow up research. Check out the paper for full details and discussion: doi.org/10.1038/s41467…

[9/10: Prospects] It seems that the biosynthesis of phytohormone compounds likely predated their recruitment in signaling and metabolism in land plants. If some of these compounds have any (signaling) role in algae, or how they came to become plant hormones remains to be found.

[2/10: Why?] Until now, no systematic analysis of phytohormone occurence was performed throughout steptophyte algal lineages.

[1/10:] Huge thanks to @thdpaepe @ugent_FPB for a great colaboration!!