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High-Throughput 2018, 7(2), 15; https://doi.org/10.3390/ht7020015

Functional Genomics Approaches to Studying Symbioses between Legumes and Nitrogen-Fixing Rhizobia

Department of Plant and Microbial Biology, University of Zurich, CH-8057 Zurich, Switzerland
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Received: 9 April 2018 / Revised: 13 May 2018 / Accepted: 16 May 2018 / Published: 18 May 2018
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Abstract

Biological nitrogen fixation gives legumes a pronounced growth advantage in nitrogen-deprived soils and is of considerable ecological and economic interest. In exchange for reduced atmospheric nitrogen, typically given to the plant in the form of amides or ureides, the legume provides nitrogen-fixing rhizobia with nutrients and highly specialised root structures called nodules. To elucidate the molecular basis underlying physiological adaptations on a genome-wide scale, functional genomics approaches, such as transcriptomics, proteomics, and metabolomics, have been used. This review presents an overview of the different functional genomics approaches that have been performed on rhizobial symbiosis, with a focus on studies investigating the molecular mechanisms used by the bacterial partner to interact with the legume. While rhizobia belonging to the alpha-proteobacterial group (alpha-rhizobia) have been well studied, few studies to date have investigated this process in beta-proteobacteria (beta-rhizobia). View Full-Text
Keywords: alpha-rhizobia; beta-rhizobia; symbiosis; transcriptomics; proteomics; metabolomics; flavonoids; root exudates; root nodule alpha-rhizobia; beta-rhizobia; symbiosis; transcriptomics; proteomics; metabolomics; flavonoids; root exudates; root nodule
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Lardi, M.; Pessi, G. Functional Genomics Approaches to Studying Symbioses between Legumes and Nitrogen-Fixing Rhizobia. High-Throughput 2018, 7, 15.

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