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Uncovering new insights and misconceptions on the effectiveness of phosphate solubilizing rhizobacteria in plants : a meta-analysis

Noémie De Zutter (UGent) , Maarten Ameye (UGent) , Boris Bekaert (UGent) , Jan Verwaeren (UGent) , Leen De Gelder (UGent) and Kris Audenaert (UGent)
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Abstract
As the awareness on the ecological impact of chemical phosphate fertilizers grows, research turns to sustainable alternatives such as the implementation of phosphate solubilizing bacteria (PSB), which make largely immobile phosphorous reserves in soils available for uptake by plants. In this review, we introduce the mechanisms by which plants facilitate P-uptake and illustrate how PSB improve the bioavailability of this nutrient. Next, the effectiveness of PSB on increasing plant biomass and P-uptake is assessed using a meta-analysis approach. Our review demonstrates that improved P-uptake does not always translate in improved plant height and biomass. We show that the effect of PSB on plants does not provide an added benefit when using bacterial consortia compared to single strains. Moreover, the commonly reported species for P-solubilization, Bacillus spp. and Pseudomonas spp., are outperformed by the scarcely implemented Burkholderia spp. Despite the similar responses to PSB in monocots and eudicots, species responsiveness to PSB varies within both clades. Remarkably, the meta-analysis challenges the common belief that PSB are less effective under field conditions compared to greenhouse conditions. This review provides innovative insights and identifies key questions for future research on PSB to promote their implementation in agriculture.
Keywords
phosphorus deficiency, meta-analysis, plant-bacteria interactions, plant nutrition, phosphate solubilizing bacteria, GROWTH PROMOTING RHIZOBACTERIA, ARBUSCULAR MYCORRHIZAL FUNGUS, PHOSPHORUS AVAILABILITY, RHIZOSPHERE MICROBIOME, ROOT ARCHITECTURE, SOIL, RESPONSES, STARVATION, BACTERIAL, PH

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MLA
De Zutter, Noémie, et al. “Uncovering New Insights and Misconceptions on the Effectiveness of Phosphate Solubilizing Rhizobacteria in Plants : A Meta-Analysis.” FRONTIERS IN PLANT SCIENCE, vol. 13, 2022, doi:10.3389/fpls.2022.858804.
APA
De Zutter, N., Ameye, M., Bekaert, B., Verwaeren, J., De Gelder, L., & Audenaert, K. (2022). Uncovering new insights and misconceptions on the effectiveness of phosphate solubilizing rhizobacteria in plants : a meta-analysis. FRONTIERS IN PLANT SCIENCE, 13. https://doi.org/10.3389/fpls.2022.858804
Chicago author-date
De Zutter, Noémie, Maarten Ameye, Boris Bekaert, Jan Verwaeren, Leen De Gelder, and Kris Audenaert. 2022. “Uncovering New Insights and Misconceptions on the Effectiveness of Phosphate Solubilizing Rhizobacteria in Plants : A Meta-Analysis.” FRONTIERS IN PLANT SCIENCE 13. https://doi.org/10.3389/fpls.2022.858804.
Chicago author-date (all authors)
De Zutter, Noémie, Maarten Ameye, Boris Bekaert, Jan Verwaeren, Leen De Gelder, and Kris Audenaert. 2022. “Uncovering New Insights and Misconceptions on the Effectiveness of Phosphate Solubilizing Rhizobacteria in Plants : A Meta-Analysis.” FRONTIERS IN PLANT SCIENCE 13. doi:10.3389/fpls.2022.858804.
Vancouver
1.
De Zutter N, Ameye M, Bekaert B, Verwaeren J, De Gelder L, Audenaert K. Uncovering new insights and misconceptions on the effectiveness of phosphate solubilizing rhizobacteria in plants : a meta-analysis. FRONTIERS IN PLANT SCIENCE. 2022;13.
IEEE
[1]
N. De Zutter, M. Ameye, B. Bekaert, J. Verwaeren, L. De Gelder, and K. Audenaert, “Uncovering new insights and misconceptions on the effectiveness of phosphate solubilizing rhizobacteria in plants : a meta-analysis,” FRONTIERS IN PLANT SCIENCE, vol. 13, 2022.
@article{8743539,
  abstract     = {{As the awareness on the ecological impact of chemical phosphate fertilizers grows, research turns to sustainable alternatives such as the implementation of phosphate solubilizing bacteria (PSB), which make largely immobile phosphorous reserves in soils available for uptake by plants. In this review, we introduce the mechanisms by which plants facilitate P-uptake and illustrate how PSB improve the bioavailability of this nutrient. Next, the effectiveness of PSB on increasing plant biomass and P-uptake is assessed using a meta-analysis approach. Our review demonstrates that improved P-uptake does not always translate in improved plant height and biomass. We show that the effect of PSB on plants does not provide an added benefit when using bacterial consortia compared to single strains. Moreover, the commonly reported species for P-solubilization, Bacillus spp. and Pseudomonas spp., are outperformed by the scarcely implemented Burkholderia spp. Despite the similar responses to PSB in monocots and eudicots, species responsiveness to PSB varies within both clades. Remarkably, the meta-analysis challenges the common belief that PSB are less effective under field conditions compared to greenhouse conditions. This review provides innovative insights and identifies key questions for future research on PSB to promote their implementation in agriculture.}},
  articleno    = {{858804}},
  author       = {{De Zutter, Noémie and Ameye, Maarten and Bekaert, Boris and Verwaeren, Jan and De Gelder, Leen and Audenaert, Kris}},
  issn         = {{1664-462X}},
  journal      = {{FRONTIERS IN PLANT SCIENCE}},
  keywords     = {{phosphorus deficiency,meta-analysis,plant-bacteria interactions,plant nutrition,phosphate solubilizing bacteria,GROWTH PROMOTING RHIZOBACTERIA,ARBUSCULAR MYCORRHIZAL FUNGUS,PHOSPHORUS AVAILABILITY,RHIZOSPHERE MICROBIOME,ROOT ARCHITECTURE,SOIL,RESPONSES,STARVATION,BACTERIAL,PH}},
  language     = {{eng}},
  pages        = {{14}},
  title        = {{Uncovering new insights and misconceptions on the effectiveness of phosphate solubilizing rhizobacteria in plants : a meta-analysis}},
  url          = {{http://doi.org/10.3389/fpls.2022.858804}},
  volume       = {{13}},
  year         = {{2022}},
}

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