Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
AI Summary:
Plants growing with neighbors compete for light and increase growth of vegetative organs to enhance access to sunlight. Cell wall modifications are important for neighbor proximity-induced elongation.AI Topics:
Plants growing with neighbors compete for light and consequently increase the growth of their vegetative organs to enhance access to sunlight. This response, called shade avoidance syndrome (SAS), involves photoreceptors such as phytochromes as well as phytochrome interacting factors (PIFs), which regulate the expression of growth-mediating genes. Numerous cell wall-related genes belong to the putative targets of PIFs, and the importance of cell wall modifications for enabling growth was extensively shown in developmental models such as dark-grown hypocotyl. However, the contribution of the cell wall in the growth of de-etiolated seedlings regulated by shade cues remains poorly established. Through analyses of mechanical and biochemical properties of the cell wall coupled with transcriptomic analysis of cell wall-related genes from previously published data, we provide evidence suggesting that cell wall modifications are important for neighbor proximity-induced elongation. Further analysis using loss-of-function mutants impaired in the synthesis and remodeling of the main cell wall polymers corroborated this. We focused on the double mutant that is defective in methylesterification of homogalacturonan (HG)-type pectins. By following hypocotyl growth kinetically and spatially and analyzing the mechanical and biochemical properties of cell walls, we found that methylesterification of HG-type pectins was required to enable global cell wall modifications underlying neighbor proximity-induced hypocotyl growth. Collectively, our work suggests that plant competition for light induces changes in the expression of numerous cell wall genes to enable modifications in biochemical and mechanical properties of cell walls that contribute to neighbor proximity-induced growth.
Sénéchal, Fabien
Author
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification modulates cell wall properties to promote neighbour proximity-induced hypocotyl growth. Plant Direct, 8 (4): e584. ISSN 2475-4455
See full publications listRobinson, Sarah
Author
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification modulates cell wall properties to promote neighbour proximity-induced hypocotyl growth. Plant Direct, 8 (4): e584. ISSN 2475-4455
See full publications listVan Schaik, Evert
Author
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification modulates cell wall properties to promote neighbour proximity-induced hypocotyl growth. Plant Direct, 8 (4): e584. ISSN 2475-4455
See full publications listTrévisan, Martine
Author
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification modulates cell wall properties to promote neighbour proximity-induced hypocotyl growth. Plant Direct, 8 (4): e584. ISSN 2475-4455
See full publications listSaxena, Prashant
Author
Mukherjee, Soumya and Saxena, Prashant (2025) Deformation and stability of initially stressed hyperelastic plates. International Journal of Solids and Structures, 311: 113253. ISSN 0020-7683
Shahsavari, Davood and Saxena, Prashant (2025) Surface instability of a finitely deformed magnetoelastic half-space. International Journal of Non-Linear Mechanics, 169: 104936. ISSN 0020-7462
Patra, Asesh Kumar and Khurana, Aman and Kumar, Deepak and Saxena, Prashant (2024) Impact of compliant electrodes on the dynamics of electromagnetoactive membranes. International Journal of Non-Linear Mechanics, 167: 104906. ISSN 0020-7462
See full publications listReinhardt, Didier
Author
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification modulates cell wall properties to promote neighbour proximity-induced hypocotyl growth. Plant Direct, 8 (4): e584. ISSN 2475-4455
See full publications listFankhauser, Christian
Author
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification state and cell wall mechanical properties contribute to neighbor proximity-induced hypocotyl growth in Arabidopsis. Plant Direct, 8 (4): e584. ISSN 2475-4455
Sénéchal, Fabien and Robinson, Sarah and Van Schaik, Evert and Trévisan, Martine and Saxena, Prashant and Reinhardt, Didier and Fankhauser, Christian (2024) Pectin methylesterification modulates cell wall properties to promote neighbour proximity-induced hypocotyl growth. Plant Direct, 8 (4): e584. ISSN 2475-4455
See full publications listAvailable under License Creative Commons Attribution Non-commercial No Derivatives.
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