Exudates of Carboxylates by Roots and Their Implications for Nutrient, Contaminant and Carbon Dynamics in Soil

Bolana, Nanthi and Mukherjee, Santanu and Sharma, Shailja and Bolan, Shiv and Yuan, Jun and Shengdie, Yang and Peacock, Caroline and Otero-Fariña, Alba and Adeleke, Rasheed A and Obi, Linda U. and Pang, Jiayin and Siddique, Kadambot H. M. (2025) Exudates of Carboxylates by Roots and Their Implications for Nutrient, Contaminant and Carbon Dynamics in Soil. Critical Reviews in Plant Sciences. pp. 1-24. ISSN 1549-7836

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Abstract

Rhizosheath carboxylates originate from plant root exudates, soil microbial activity, and soil organic matter decomposition. This review provides a comprehensive bibliometric analysis of critical discussions on the role of rhizosheath carboxylates in soil ecosystems by examining factors influencing their release, and their implications for nutrient availability, contaminant behavior, and carbon dynamics. Root exudates comprise numerous compounds, including enzymes, polysaccharides, primary metabolites such as carbohydrates, amino acids, and carboxylates, and secondary metabolites like phenols, glucosinolates, vitamins, and plant hormones. In response to biotic and abiotic stresses, soil microorganisms also release carboxylates as part of their adaptive strategies. Their release, concentration, and persistence in the rhizosheath fluctuate over time, which is influenced by various factors, including soil type, plant species, nutrient availability, microbial activity, and environmental conditions. These carboxylates play a key role in mobilizing carbon, nutrients, and contaminants, thus influencing their bioavailability to plants and microbes. While the dynamic and transient nature of these root exudates allows plants to respond to changing environmental conditions and nutrient demands by adjusting their exudation patterns, it poses significant challenges to the measurement and quantification of root exudates. This challenge can be over

Item Type: Article
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Natural Sciences and Environmental Studies
Depositing User: Uchenna Eneogwe
Date Deposited: 07 Sep 2026 13:10
Last Modified: 07 Sep 2026 13:10
URI: http://eprints.gouni.edu.ng/id/eprint/6338

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