Influence of mechanical stress on biomass allocation in three species (Pachira aquatica Aubl., Sextonia rubra (Mez) van der Werff and Simarouba amara Aubl.) with contrasting posture control mechanisms

Key message

The posture control in Pachira aquatica, Sextonia rubra and Simarouba amara is achieved through contrasted mechanisms involving tensile stress in wood only, bark only or both. This study evidenced that the restoration of verticality does not imply an overall cost for trees but modifies growth kinetics and biomass allocation to organs and tissues, improving the posture control of the trees in the three species.

Keywords

Tree ; Biomass allocation ; Partitioning ; Tension wood ; Bark ; Growth kinetics ; Gravitropic stimulus

Publication

Ghislain, B., Coste, S., Faure, G. et al. Influence of mechanical stress on biomass allocation in three species (Pachira aquatica Aubl., Sextonia rubra (Mez) van der Werff and Simarouba amara Aubl.) with contrasting posture control mechanisms. Annals of Forest Science 82, 2 (2025). https://doi.org/10.1186/s13595-025-01273-y

Data and/or code availability

The data that support the findings of this study are deposited in CNRS Research Data and accessible at https://entrepot.recherche.data.gouv.fr/dataset.xhtml?persistentId=doi:10.57745/6RIG38.

Handling Editor

Alexia Stokes