Related Experiment Video
Updated: Mar 15, 2026

Plant-Microbe Interaction: Transcriptional Response of Bacillus Mycoides to Potato Root Exudates
Published on: July 2, 2018
Integrating root exudation into belowground carbon economics
Zhihui Wen1, Jiayin Pang2, Jianbo Shen3
1State Key Laboratory of Nutrient Use and Management; College of Resources and Environmental Sciences; National Academy of Agriculture Green Development; Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, China; Crop Functional Genomics, Institute of Crop Science and Resource Conservation, University of Bonn, Bonn 53113, Germany.
Abstract:
The ecological significance of root exudation has long been recognized, yet most research on root-trait organization has focused on easily measurable morphological and chemical traits. Root exudation, despite representing a substantial carbon investment in rhizosphere processes and belowground interactions, remains largely overlooked in the current Root Economics Space (RES) framework. Emerging evidence reveals inconsistent correlations between root-exudation traits and the collaboration versus conservation gradients of the RES. We explore potential mechanisms underlying these inconsistencies and propose two testable hypotheses: that root exudation can either be integrated into the existing two-dimensional RES or constitute an independent axis that extends the framework to three dimensions. Finally, we identify key research priorities to address critical knowledge gaps and improve trait-based predictions of belowground carbon allocation.
Related Concept Videos
C4 Pathway and CAM
C4 Pathway
The C4 pathway is used by plants such as...
Adaptations that Reduce Water Loss
Water and Mineral Acquisition
Bioremediation
The Carbon Cycle
The Calvin Benson Cycle

