REVIEW article
Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1662592
This article is part of the Research TopicEnhancing Legume Resilience: Microbial and Viral Interactions in Stress AdaptationView all articles
Rhizobia and Non-Rhizobial Nodule Bacteria with ACC deaminase Increase Both Nodulation and Stress Resistance
Provisionally accepted
- 1Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
- 2University of Waterloo, Waterloo, Canada
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Strains of Rhizobia that possess the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase facilitate the nodulation of cognate legume hosts. Some rhizobial strains that contain ACC deaminase also help plants to overcome some types of environmental stress including heat, salt, drought and the presence of heavy metals. In addition, non-rhizobial strains of bacteria isolated from legume nodules that contain ACC deaminase increase the extent of rhizobia nodulation and the resistance of the legume to environmental stresses. Here, the literature addressing the role of ACC deaminase in increasing legume nodulation and protecting plants against a range of environmental stresses is summarized and discussed.
Keywords: ACC deaminase, Rhizobia, Plant Stress, heat, Salinity, drought, Toxic metals
Received: 09 Jul 2025; Accepted: 11 Aug 2025.
Copyright: © 2025 Gamalero and Glick. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Elisa Gamalero, Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
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