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Gewählte Publikation:

Feraru, E; Feraru, MI; Barbez, E; Waidmann, S; Sun, L; Gaidora, A; Kleine-Vehn, J.
(2019): PILS6 is a temperature-sensitive regulator of nuclear auxin input and organ growth in Arabidopsis thaliana
P NATL ACAD SCI USA. 2019; 116(9): 3893-3898. FullText FullText_BOKU

Temperature modulates growth and development throughout the entire lifecycle of a plant. High temperature (HT) triggers the auxin biosynthesis-dependent growth in aerial tissues. On the other hand, the contribution of auxin to HT-induced root growth is currently under debate. Here we show that the putative intracellular auxin carrier PIN-LIKES 6 (PILS6) is a negative regulator of organ growth and that its abundance is highly sensitive to HT. PILS6 localizes to the endoplasmic reticulum and limits the nuclear availability of auxin, consequently reducing the auxin signaling output. HT represses the PILS6 protein abundance, which impacts on PILS6-dependent auxin signaling in roots and root expansion. Accordingly, we hypothesize that PILS6 is part of an alternative mechanism linking HT to auxin responses in roots.
Autor*innen der BOKU Wien:
Barbez Elke
Feraru Elena
Feraru Ioan Mugurel
Gaidora Angelika
Kleine-Vehn Jürgen
Sun Lin
Waidmann Sascha

Find related publications in this database (Keywords)
high temperature
auxin signaling
PILS proteins
endoplasmic reticulum
root growth

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