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Xyloglucan remodeling defines auxin-dependent differential tissue expansion in plants
- Source :
- 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 .
- Publication Year :
- 2021
-
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’s molecular structure, which in turn affects cell wall mechanics and specifies differential, gravitropic hypocotyl growth.
Details
- Database :
- OAIster
- Journal :
- 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 .
- Notes :
- application/pdf, English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1284965237
- Document Type :
- Electronic Resource