In a reputable scientific journal Wood Science and Technology (MSNW = 200 pts.) published an article on studies of the development of wood fiber bodies in acacia robinia, focusing on changes in the transverse surface area of fiber bodies during their differentiation.

The results of the analysis show that the development of wood fiber bodies in the transverse plane includes a gradual change in their shape from rectangular to more rounded. It is accompanied by an increase in the radial dimension (thickness) and a decrease in the tangential dimension (width) of the fiber bodies. Interestingly, the change in the shape of developing wood fibers is not accompanied by an increase in the circumference of their cell walls. Therefore, it was concluded that the increase in the transverse area of the cells under study is due to the change in their shape, and not directly to the increase in their cell wall in the transverse plane. The results obtained on how the transverse surface area of wood fiber bodies increases have important implications for the analysis of xylogenesis in angiosperm plants, as they revolutionize the common understanding of the processes occurring during radial growth in the differentiating secondary xylem.

Honey A., Honey A.P. & Kojs P. Wood fiber bodies of Robinia pseudoacacia increase their transverse surface area without cell wall expansion. Wood Sci Technol 59, 67 (2025).

https://doi.org/10.1007/s00226-025-01669-z