@article{687d8ca342ae4fa48519949b1389b0eb,
title = "Xyloglucan remodeling defines auxin-dependent differential tissue expansion in plants",
abstract = "Size control is a fundamental question in biology, showing incremental complexity in plants, whose cells possess a rigid cell wall. The phytohormone auxin is a vital growth regulator with central importance for differential growth control. Our results indicate that auxin-reliant growth programs affect the molecular complexity of xyloglucans, the major type of cell wall hemi-cellulose in eudicots. Auxin-dependent induction and repression of growth coincide with reduced and enhanced molecular complexity of xyloglucans, respectively. In agreement with a proposed function in growth control, genetic interference with xyloglucan side decorations distinctly modulates auxin-dependent differential growth rates. Our work proposes that auxin-dependent growth programs have a spatially defined effect on xyloglucan{\textquoteright}s molecular structure, which in turn affects cell wall mechanics and specifies differential, gravitropic hypocotyl growth.",
keywords = "Auxin, Cell wall, Gravitropism, Growth, Hypocotyls, Xyloglucans",
author = "Velasquez, {Silvia Melina} and Xiaoyuan Guo and Mar{\c c}al Gallemi and Bibek Aryal and Peter Venhuizen and Elke Barbez and D{\"u}nser, {Kai Alexander} and Martin Darino and Ale{\v s} Pӗn{\v c}{\'i}k and Ond{\v r}ej Nov{\'a}k and Maria Kalyna and Gregory Mouille and Eva Benkov{\'a} and Bhalerao, {Rishikesh P.} and Jozef Mravec and J{\"u}rgen Kleine-Vehn",
note = "Funding Information: This work was supported by the Villum Foundation grant 00017489 (J.M.), Vienna Science and Technology Fund (WWTF) (to J.K.-V.), European Research Council (AuxinER—ERC starting grant 639478 to J.K.-V.), the Austrian Science Fund (FWF) (grant number P26333 to M.K.; P26591 to J.K.-V.), and the Ministry of Education, Youth and Sports of the Czech Republic through the European Regional Development Fund-Project (CZ.02.1.01/0.0/0.0/16_019/0000827 to A.P. and O.N.). Funding Information: Funding: This work was supported by the Villum Foundation grant 00017489 (J.M.), Vienna Science and Technology Fund (WWTF) (to J.K.-V.), European Research Council (AuxinER—ERC starting grant 639478 to J.K.-V.), the Austrian Science Fund (FWF) (grant number P26333 to M.K.; P26591 to J.K.-V.), and the Ministry of Education, Youth and Sports of the Czech Republic through the European Regional Development Fund-Project (CZ.02.1.01/0.0/0.0/16_019/0000827 to A.P. and O.N.). Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2021",
month = sep,
day = "1",
doi = "10.3390/ijms22179222",
language = "English",
volume = "22",
journal = "International Journal of Molecular Sciences",
issn = "1661-6596",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "17",
}