Effects of phosphorus-mobilizing bacteria on tomato growth and soil microbial activity
| Autor: | Ellen Kandeler, Dinah Nassal, Sven Marhan, Namis Eltlbany, Marie Spohn, Kornelia Smalla, Samuel Jacquiod |
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| Přispěvatelé: | University of Hohenheim, University of Bayreuth, Federal Research Centre for Cultivated Plants, Institutefor Epidemiology and Pathogen Diagnostics, Julius Kühn-Institut - Federal Research Centre for Cultivated Plants (JKI), ABiTEP – Biotech for Agriculture and Ecology, Partenaires INRAE, Suez Canal University, Agroécologie [Dijon], Université de Bourgogne (UB)-Institut National de la Recherche Agronomique (INRA)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, European Project: 312117,EC:FP7:KBBE,FP7-KBBE-2012-6-singlestage,BIOFECTOR(2012), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Nassal, Dinah |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
[SDV]Life Sciences [q-bio] Bulk soil Soil Science Plant Science 03 medical and health sciences Phosphorus-mobilizing bacteria Phosphorus-solubilizing bacteria Plant growth-promoting bacteria Solanum lycopersicum Pseudomonas Nutrient [SDV.BV]Life Sciences [q-bio]/Vegetal Biology 2. Zero hunger Rhizosphere biology Inoculation Chemistry food and beverages 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification Horticulture 030104 developmental biology Microbial population biology [SDE]Environmental Sciences 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Solanum Bacteria |
| Zdroj: | Plant and Soil Plant and Soil, Springer Verlag, 2018, 427 (1-2), pp.17-37. ⟨10.1007/s11104-017-3528-y⟩ Plant and Soil, 2018, 427 (1-2), pp.17-37. ⟨10.1007/s11104-017-3528-y⟩ Plant and Soil 1-2 (427), 17-37. (2018) |
| ISSN: | 0032-079X 1573-5036 |
| DOI: | 10.1007/s11104-017-3528-y⟩ |
| Popis: | International audience; Aims The aim of our study was to clarify whether inoculating a soil with Pseudomonas sp. RU47 (RU47) bacteria would stimulate the enzymatic cleavage of organic P compounds in the rhizosphere and bulk soil, promoting plant growth. Adding either viable or heat treated RU47 cells made it possible to separate direct from indirect effects of the inoculum on P cycling in soil and plants. Methods We performed a rhizobox experiment in the greenhouse with tomato plants (Solanum lycopersicum) under low P soil conditions. Three inoculation treatments were conducted, using unselectively grown soil bacteria (bacterial mix), heat treated (HT-RU47) and viable RU47 (RU47) cells, and one not inoculated, optimally P-fertilized treatment. We verified plant growth, nutrient availability, enzyme activities and microbial community structure in soil. Results A plant growth promotion effect with improved P uptake was observed in both RU47 treatments. Inoculations of RU47 cells increased microbial phosphatase activity (PA) in the rhizosphere. Conclusions Plant growth promotion by RU47 cells is primarily associated with increased microbial PA in soil, while promotion of indigenous Pseudomonads as well as phytohormonal effects appear to be the dominant mechanisms when adding HT-RU47 cells. Thus, using RU47 offers a promising approach for more efficient P fertilization in agriculture. |
| Databáze: | OpenAIRE |
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