期刊
Trends in Ecology & Evolution
标题
The origin of bi-dimensionality in plant root traits
作者
Yue Zhang, Jingjing Cao, Mingzhen Lu, Paul Kardol, Junjian Wang, Guoqiang Fan, Deliang Kong
摘要
Plant roots show extraordinary diversity in form and function in heterogeneous environments. Mounting evidence has shown global bi-dimensionality in root traits, the root economics spectrum (RES), and an orthogonal dimension describing mycorrhizal collaboration; however, the origin of the bi-dimensionality remains unresolved. Here, we propose that bi-dimensionality arises from the cylindrical geometry of roots, allometry between root cortex and stele, and independence between root cell wall thickness and cell number. Root geometry and mycorrhizal collaboration may both underlie the bi-dimensionality. Further, we emphasize why plant roots should be cylindrical rather than flat. Finally, we highlight the need to integrate organ-, cellular-, and molecular-level processes driving the bi-dimensionality in plant roots to fully understand plant diversity and functions.
原文链接
https://www.cell.com/trends/ecology-evolution/fulltext/S0169-5347(23)00233-1