Full TGIF Record # 308132
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DOI:10.1016/j.soilbio.2019.06.012
Web URL(s):https://www.sciencedirect.com/science/article/pii/S0038071719301713
    Last checked: 09/06/2019
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https://www.sciencedirect.com/science/article/pii/S0038071719301713/pdfft?md5=433c9cb5d9a87f1544ff4ea74a268575&pid=1-s2.0-S0038071719301713-main.pdf
    Last checked: 09/06/2019
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Publication Type:
i
Refereed
Author(s):Barra, Patricio Javier; Pontigo, Sofia; Delgado, Mabel; Parra-Almuna, Leyla; Duran, Paola; Valentine, Alexander Joseph; Jorquera, Milko Alberto; Mora, María de la Luz
Author Affiliation:Barra, Delgado, and Jorquera: Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile; Pontigo and Parra-Almuna: Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific, Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile and Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Temuco, Chile; Duran: Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile and Biocontrol Research Laboratory-Center of Plant, Soil Interaction and Natural Resources Biotechnology, BIOREN, Universidad de La Frontera, Temuco, Chile; Valentine: Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Matieland, South Africa; Mora: Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile and Soil and Plant Laboratory-Center of Plant, Soil Interaction and Natural Resources Biotechnology, BIOREN, Universidad de La Frontera, Temuco, Chile
Title:Phosphobacteria inoculation enhances the benefit of P-fertilization on Lolium perenne in soils contrasting in P-availability
Source:Soil Biology & Biochemistry. Vol. 136, September 2019, p. 1-11.
Publishing Information:Amsterdam, The Netherlands: Elsevier
# of Pages:11
Related Web URL:https://www.sciencedirect.com/science/article/pii/S0038071719301713#abs0010
    Last checked: 09/20/2019
    Notes: Abstract only
Keywords:TIC Keywords: Biomass; Gene expression; Inoculation; Lolium perenne; Nutrient concentration; Phosphorus; Phosphorus fertilizers; Superoxide dismutase; Superphosphates
Author-Supplied Keywords: Lolium perenne; Phosphobacteria; Phosphorus-fertilization; Phosphate-transporters; Superoxide dismutase; P-deficient soil
Abstract/Contents:"Phosphorus (P) is an essential macronutrient for plant growth and is therefore an important component ofagricultural fertilizers, especially for P-deficient soils. As a more environmentally friendly alternative to P-fertilization, phosphobacteria are regularly being proposed as bio-inoculants for plants that are cultivated in P-deficient soils. Although it is known that phosphobacteria inoculation can influence the growth and P nutrition of the host plant, the underlying responses at the molecular level have to date, not been fully elucidated. Here, we evaluated the single and combined effects of a phosphobacteria consortium inoculation and triple superphosphate fertilization on the biomass, P content, anti-oxidant capacity and phosphate-transporters genes of Lolium perenne. Plants were grown over 45 days in presence and absence of P-fertilization and phosphobacteria inoculation in two soils with different P bio-availabilities. Our results reveal that irrespective of P-availability in soils, the phosphobacteria inoculation provides an 'enhancement effect' of the P-fertilization on the development, nutrition and the alleviation of oxidative stress, in L. perenne. This was evidenced by higher biomass, increased P content, and lower cellular damage in tissues of the inoculated plants. The inoculation with phosphobacteria decreased the relative gene expression of superoxide dismutase isoforms in tissues of fertilized plants grown in the P-deficient soil. In addition, phosphobacteria inoculation was also associated with a lower relative expression of phosphate-transporter genes of P-fertilized plants. Therefore, instead of being an alternative to P-fertilization, phosphobacteria could rather be a promising complement to P-fertilization in P-deficient soils and potentially reduce fertilizer application rates. Based on our findings, an explicatory model of plant-soil-phosphobacteria interactions on the regulation of antioxidant and phosphate-transport capacities in P-deficient, is proposed."
Language:English
References:84
Note:Figures
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Barra, P. J., S. Pontigo, M. Delgado, L. Parra-Almuna, P. Duran, A. J. Valentine, et al. 2019. Phosphobacteria inoculation enhances the benefit of P-fertilization on Lolium perenne in soils contrasting in P-availability. Soil Biol. Biochem. 136:p. 1-11.
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DOI: 10.1016/j.soilbio.2019.06.012
Web URL(s):
https://www.sciencedirect.com/science/article/pii/S0038071719301713
    Last checked: 09/06/2019
    Access conditions: Item is within a limited-access website
https://www.sciencedirect.com/science/article/pii/S0038071719301713/pdfft?md5=433c9cb5d9a87f1544ff4ea74a268575&pid=1-s2.0-S0038071719301713-main.pdf
    Last checked: 09/06/2019
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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