Place a plant on its side and its roots and shoots quickly grow down and up again. The plant sensed that the direction of gravity changed and adjusted its growth accordingly. But how plants regulate this temporary adjustment was not exactly known. Now a group of international researchers show that one part of the answer is the temporarily activating the auxin response factor ARF19.
Tag Archives: auxin
Fluctuating genes
There is a lot more noise than assumed in gene expression. Nevertheless, organisms still manage to develop complex organs. As American researchers show in Nature Communications.
Updating our view of TIR
It turns out that the auxin receptor TIR produces the second messenger cAMP. Now researchers led by Jiří Friml show in Nature that the production of cAMP and not the degradation of Aux/IAA proteins is the key to the activation of ARF transcription factors.
Extra auxin against stress
Extra auxin against stress Microbes like, Pseudomonas, give plants a helping hand in stress situations. For a long time it was unknown how they do this. Now a team of international researchers show in Microbial Biotechnology how Pseudomonas this does. Plants colonised by beneficial microbes perform better than their non-colonised neighbours in stress situations. TheContinue reading “Extra auxin against stress”
Plant en Zo 