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Sheridan C, Depuydt P, De Ro M, Petit C, Van Gysegem E, Delaere P, Dixon M, Stasiak M, Aciksöz SB, Frossard E, Paradiso R, De Pascale S, Ventorino V, De Meyer T, Sas B, Geelen D. Microbial Community Dynamics and Response to Plant Growth-Promoting Microorganisms in the Rhizosphere of Four Common Food Crops Cultivated in Hydroponics. Microb Ecol 2017; 73:378-393. [PMID: 27645138 DOI: 10.1007/s00248-016-0855-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/05/2016] [Indexed: 05/25/2023]
Abstract
Plant growth promoting microorganisms (PGPMs) of the plant root zone microbiome have received limited attention in hydroponic cultivation systems. In the framework of a project aimed at the development of a biological life support system for manned missions in space, we investigated the effects of PGPMs on four common food crops (durum and bread wheat, potato and soybean) cultivated in recirculating hydroponic systems for a whole life cycle. Each crop was inoculated with a commercial PGPM mixture and the composition of the microbial communities associated with their root rhizosphere, rhizoplane/endosphere and with the recirculating nutrient solution was characterised through 16S- and ITS-targeted Illumina MiSeq sequencing. PGPM addition was shown to induce changes in the composition of these communities, though these changes varied both between crops and over time. Microbial communities of PGPM-treated plants were shown to be more stable over time. Though additional development is required, this study highlights the potential benefits that PGPMs may confer to plants grown in hydroponic systems, particularly when cultivated in extreme environments such as space.
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Affiliation(s)
- C Sheridan
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium
| | - P Depuydt
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium
| | - M De Ro
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium
| | - C Petit
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium
| | - E Van Gysegem
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium
| | - P Delaere
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium
| | - M Dixon
- Controlled Environment Systems Research Facility, School of Environmental Sciences, University of Guelph, Guelph, ON, NIG 2W1, Canada
| | - M Stasiak
- Controlled Environment Systems Research Facility, School of Environmental Sciences, University of Guelph, Guelph, ON, NIG 2W1, Canada
| | - S B Aciksöz
- Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland
| | - E Frossard
- Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland
| | - R Paradiso
- Division of Plant Biology and Crop Science, Department of Agricultural Sciences, University of Naples Federico II Naples, Via Università, 100 80055, Portici, Naples, Italy
| | - S De Pascale
- Division of Plant Biology and Crop Science, Department of Agricultural Sciences, University of Naples Federico II Naples, Via Università, 100 80055, Portici, Naples, Italy
| | - V Ventorino
- Division of Microbiology, Department of Agricultural Sciences, University of Naples Federico II Naples, Via Università, 100 80055, Portici, Naples, Italy
| | - T De Meyer
- Department of Mathematical Modelling, Statistics and Bioinformatics, Ghent University, Ghent, Belgium
| | - B Sas
- Department of Food Quality and Food Safety, Ghent University, Coupure links 653, B-9000, Ghent, Belgium
| | - D Geelen
- In Vitro Biology and Horticulture, Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, 9000, Ghent, Belgium.
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