New preprint from our lab: Salicylic acid- induced alkalinization of the apoplast requires TMK1 and results in growth attenuation www.biorxiv.org/content/10.6... Big thanks to all who contributed @julien-gronnier.bsky.social @guidogrossmann.bsky.social @kaltraxhelilaj.bsky.social

New preprint from our lab: Salicylic acid- induced alkalinization of the apoplast requires TMK1 and results in growth attenuation

www.biorxiv.org/cgi/content/...

Big thanks to all who contributed @guidogrossmann.bsky.social
@julien-gronnier.bsky.social
@kaltraxhelilaj.bsky.social

The plant stress hormone salicylic acid has unexpected functions in growth and development. Notably, the classical SA receptores NPRs seems not to participate. If you want to know more, have a look at the little review we wrote: www.frontiersin.org/journals/pla...

6/ Notably, the vha a3 vha a3 mutant resembles SA treated plants (shorter roots, cell size differences of atricho-and trichoblasts) and has significantly elevated endogenous SA levels

5/ Turns out that SA treatment increases vacuolar pH by inhibiting V-ATPase activity

4/…..we assessed vacuolar occupancy (relative size) in different zones of the root.

3/ ….but PIN2 and auxin receptor mutants are not resistant again SA mediated growth inhibition. Since auxin impacts on vacuole size….

2/ SA impacts auxin signaling and PIN2 distribution……

1/ SA restricts cell elongation in the root but not in the shoot……

What is the vacuole doing during cell division? Exciting topic! #fluorescencefriday

#Fluorescencefriday @rptu.bsky.social the ER is almost always the most beautiful in the plant leaf

I mean...wow! Expressing betalains in tobacco:

Having fun testing our new imaging robot SPIROvert. We will be able to automatically follow plant or bacterial growth and pathogen progression on 4 petri dishes for several days

Had a great trip to @irtgprotect.bsky.social Göttingen. Heard about exciting science and was amazed by the amount of plant pathologists there! Thanks Daniela Nordzieke for the invitation and @volkerlipka.bsky.social @kaiheimel.bsky.social @thomas-spallek.bsky.social @ifeussner.bsky.social