Revisiting the root economics space—its applications, extensions and nuances advance our understanding of fine-root functioning

IF 3.9 2区 农林科学 Q1 AGRONOMY
Elsa Matthus, Marie Zwetsloot, Benjamin M. Delory, Justus Hennecke, Karl Andraczek, Tilo Henning, Liesje Mommer, Alexandra Weigelt, Joana Bergmann
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引用次数: 0

Abstract

Background and aims

Fine roots and their traits determine resource uptake from the soil, thus being fundamental for plant and ecosystem functioning. It has been five years since the concept of the root economics space (RES) has been developed to describe multidimensional fine-root trait coordination. The RES proposed a novel fungal collaboration gradient in addition to the established fast-slow gradient of resource conservation. This review addresses both researchers already using the RES and those newly introduced to the concept. Our objective is to evaluate the empirical support for the concept, explore trait extensions and implications for ecosystem functioning, and examine future prospects of the RES.

Scope/Results

We conducted a literature review of 134 papers working with the RES to quantitatively assess support for the concept and its two trait gradients. The RES, particularly the collaboration gradient, is widely supported across organizational levels, habitats and study designs. Multidimensionality in the trait space appears to be a universal pattern. We further map traits that have been added to the RES concept and discuss the special role of legumes and ecto- versus arbuscular mycorrhizal fungi.

Conclusions

We conclude that the RES is a powerful concept to understand fine-root functional variation. Moving forward, we emphasize the need to integrate additional traits to develop a more comprehensive framework for understanding plant and ecosystem functioning.

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来源期刊
Plant and Soil
Plant and Soil 农林科学-农艺学
CiteScore
8.20
自引率
8.20%
发文量
543
审稿时长
2.5 months
期刊介绍: Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.
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