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Mineral and organic growing media have distinct community structure, stability and functionality in soilless culture systems

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Abstract
The choice of soilless growing medium for plant nutrition, growth and support is crucial for improving the eco-sustainability of the production in horticultural systems. As our current understanding of the functional microbial communities inhabiting this ecosystem is still limited, we examined the microbial community development of the two most important growing media (organic and mineral) used in open soilless horticultural systems. We aimed to identify factors that influence community composition over time, and to compare the distribution of individual taxa across growing media, and their potential functionality. High throughput sequencing analysis revealed a distinctive and stable microbial community in the organic growing medium. Humidity, pH, nitrate-N, ammonium-N and conductivity were uncovered as the main factors associated with the resident bacterial communities. Ammonium-N was correlated with Rhizobiaceae abundance, while potential competitive interactions among both Methylophilaceae and Actinobacteridae with Rhizobiaceae were suggested. Our results revealed that soilless growing media are unique niches for diverse bacterial communities with temporal functional stability, which may possibly impact the resistance to external forces. These differences in communities can be used to develop strategies to move towards a sustainable horticulture with increased productivity and quality.
Keywords
PLANT-PATHOGENS, BACTERIAL COMMUNITY, CROWN-GALL, R-PACKAGE, BIODIVERSITY, POPULATIONS, DIVERSITY, PCR, RIBOSOMAL-RNA, RHIZOSPHERE MICROBIOME

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Chicago
Grunert, Oliver, Emma Hernandez Sanabria, Ramiro Vilchez Vargas, Ruy Jauregui, Dietmar H Pieper, Maaike Perneel, Marie-Christine Van Labeke, Dirk Reheul, and Nico Boon. 2016. “Mineral and Organic Growing Media Have Distinct Community Structure, Stability and Functionality in Soilless Culture Systems.” Scientific Reports 6.
APA
Grunert, O., Hernandez Sanabria, E., Vilchez Vargas, R., Jauregui, R., Pieper, D. H., Perneel, M., Van Labeke, M.-C., et al. (2016). Mineral and organic growing media have distinct community structure, stability and functionality in soilless culture systems. SCIENTIFIC REPORTS, 6.
Vancouver
1.
Grunert O, Hernandez Sanabria E, Vilchez Vargas R, Jauregui R, Pieper DH, Perneel M, et al. Mineral and organic growing media have distinct community structure, stability and functionality in soilless culture systems. SCIENTIFIC REPORTS. 2016;6.
MLA
Grunert, Oliver, Emma Hernandez Sanabria, Ramiro Vilchez Vargas, et al. “Mineral and Organic Growing Media Have Distinct Community Structure, Stability and Functionality in Soilless Culture Systems.” SCIENTIFIC REPORTS 6 (2016): n. pag. Print.
@article{7088179,
  abstract     = {The choice of soilless growing medium for plant nutrition, growth and support is crucial for improving the eco-sustainability of the production in horticultural systems. As our current understanding of the functional microbial communities inhabiting this ecosystem is still limited, we examined the microbial community development of the two most important growing media (organic and mineral) used in open soilless horticultural systems. We aimed to identify factors that influence community composition over time, and to compare the distribution of individual taxa across growing media, and their potential functionality. High throughput sequencing analysis revealed a distinctive and stable microbial community in the organic growing medium. Humidity, pH, nitrate-N, ammonium-N and conductivity were uncovered as the main factors associated with the resident bacterial communities. Ammonium-N was correlated with Rhizobiaceae abundance, while potential competitive interactions among both Methylophilaceae and Actinobacteridae with Rhizobiaceae were suggested. Our results revealed that soilless growing media are unique niches for diverse bacterial communities with temporal functional stability, which may possibly impact the resistance to external forces. These differences in communities can be used to develop strategies to move towards a sustainable horticulture with increased productivity and quality.},
  articleno    = {18837},
  author       = {Grunert, Oliver and Hernandez Sanabria, Emma and Vilchez Vargas, Ramiro and Jauregui, Ruy and Pieper, Dietmar H and Perneel, Maaike and Van Labeke, Marie-Christine and Reheul, Dirk and Boon, Nico},
  issn         = {2045-2322},
  journal      = {SCIENTIFIC REPORTS},
  keyword      = {PLANT-PATHOGENS,BACTERIAL COMMUNITY,CROWN-GALL,R-PACKAGE,BIODIVERSITY,POPULATIONS,DIVERSITY,PCR,RIBOSOMAL-RNA,RHIZOSPHERE MICROBIOME},
  language     = {eng},
  pages        = {14},
  title        = {Mineral and organic growing media have distinct community structure, stability and functionality in soilless culture systems},
  url          = {http://dx.doi.org/10.1038/srep18837},
  volume       = {6},
  year         = {2016},
}

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