Xyloglucan remodeling defines auxin-dependent differential tissue expansion in plants
| Autor: | Jürgen Kleine-Vehn, Peter Venhuizen, Silvia Melina Velásquez, Eva Benková, Jozef Mravec, Ondřej Novák, Aleš Pĕnčík, Rishikesh P. Bhalerao, Martin Darino, Grégory Mouille, Bibek Aryal, Maria Kalyna, Kai Dünser, Marçal Gallemí, Xiaoyuan Guo, Elke Barbez |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Arabidopsis Fluorescent Antibody Technique Growth 01 natural sciences Hypocotyl chemistry.chemical_compound Gene Expression Regulation Plant Auxin Biology (General) Glucans Spectroscopy chemistry.chemical_classification 0303 health sciences Chemistry Cell wall Biochemistry and Molecular Biology food and beverages General Medicine gravitropism Computer Science Applications Cell biology Xyloglucan Xylans Signal Transduction QH301-705.5 growth Gravitropism Plant Development xyloglucans Article Catalysis Inorganic Chemistry 03 medical and health sciences Xyloglucans hypocotyls Plant Cells Hemicellulose Physical and Theoretical Chemistry Molecular Biology Psychological repression QD1-999 Plant Physiological Phenomena 030304 developmental biology Indoleacetic Acids Hypocotyls Organic Chemistry fungi Peas cell wall auxin Function (biology) 010606 plant biology & botany |
| Zdroj: | Velasquez, S M, Guo, X, Gallemi, M, Aryal, B, Venhuizen, P, Barbez, E, Dünser, K A, Darino, M, Pӗnčík, A, Novák, O, Kalyna, M, Mouille, G, Benková, E, Bhalerao, R P, Mravec, J & Kleine-Vehn, J 2021, ' Xyloglucan remodeling defines auxin-dependent differential tissue expansion in plants ', International Journal of Molecular Sciences, vol. 22, no. 17, 9222 . https://doi.org/10.3390/ijms22179222 International Journal of Molecular Sciences, Vol 22, Iss 9222, p 9222 (2021) International Journal of Molecular Sciences Volume 22 Issue 17 |
| DOI: | 10.3390/ijms22179222 |
| Popis: | 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 hemicellulose 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’s molecular structure, which in turn affects cell wall mechanics and specifies differential, gravitropic hypocotyl growth. |
| Databáze: | OpenAIRE |
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