Root and bacterial secretions regulate the interaction between plants and PGPR leading to distinct plant growth promotion effects

Zhou, Dongmei; Huang, Xing‐Feng; Chaparro, Jacqueline M.; Badri, Dayakar V.; Manter, Daniel K.; Vivanco, Jorge M.; Guo, Jianhua

doi:10.1007/s11104-015-2743-7

Cited by 114 publications

(75 citation statements)

References 83 publications

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“…This observation is supported by reports that selected bacteria are capable of changing high amounts insoluble forms of K and P present in soils as rocks and silicate minerals into available K and P ( Zhao et al., ; Velázquez et al., ). A recent report has shown that AR156 (one of PGPR strains in BF) growth and the induced plant growth promotion were actively promoted by root exudates ( Zhou et al., ) in which organic compounds including fructose, sucrose and a series of amino acids are increased upon bacteria inoculation (data unpublished). This partially explains the significant increase in soil organic matter caused by application of microbial fertilizer BF.…”

Section: Discussionmentioning

confidence: 99%

“…PGPR promote plant nutrient uptake by altering root morphology with proliferation of lateral roots and root hairs ( Persello‐Cartieaux et al., ) or increasing primary root growth ( Liu et al., ). PGPR also promote photosynthesis and release of root exudates, which in turn favors proliferation of beneficial microbes in the rhizosphere ( García‐Fraile et al., ; Zhou et al., ). Moreover, inoculation of PGPR results in a considerable shift in plant gene expression profile, including induction of genes involved in metabolism and phytohormones production ( Wang et al., ), indicating a potential stimulation of uptake and utilization of nutrients.…”

Section: Introductionmentioning

confidence: 99%

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Combination of agricultural waste compost and biofertilizer improves yield and enhances the sustainability of a pepper field

Qiu

et al. 2019

J. Plant Nutr. Soil Sci.

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Application of plant growth‐promoting rhizobacteria (PGPR) has been considered as an environmentally friendly method for crop yield promotion as well as plant disease management. Efforts have been devoted to unraveling mechanisms involved in bacteria–plant and bacteria–pathogen interactions. However, little is known on the effect of the interaction among PGPR, soil, and plant. We compared growth and yield promotion capacity of biofertilizer Ning Shield, a consortium of bacterial preparation used as a biofertilizer (BF), and its mixture with compost of agricultural waste including spent substrate of Pleurotus ostreatus (SSP)/Volvariella volvacea (SSV), chicken manure (CM), and inorganic fertilizer (IOF) in a pepper field, respectively. The disease control efficacy, pepper fruit preservation time, and nutrients were also determined. Soil nutrient parameters including organic matter and available NPK of treatments were assayed before and after one growth season. All of the mixture of BF+organic compost treatment significantly enhanced the yield and quality of pepper fruit. Moreover, disease control capacity was promoted by the mixture of BF+organic compost, with BF+SSV reaching the highest control efficacy of 81% on 60th day after transplanting, and remaining 76% at the 105th day. The BF+SSV treatment showed soil fertility retention ability with higher soil nutrient contents after one growth season of pepper. This study provides evidence that, when combined with organic fertilizers such as spent mushroom substrate compost, beneficial microbes have the ability to promote plant growth and yield as well as suppress plant disease by sustaining soil fertility through complex bacteria–soil–plant interaction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Combination of agricultural waste compost and biofertilizer improves yield and enhances the sustainability of a pepper field

Qiu

et al. 2019

J. Plant Nutr. Soil Sci.

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“…Membrane receptors of gram-positive and gram-negative bacteria recognize ferric-siderophore complex and start the active transport [28]. Siderophores have great af inity to form complex with ferric ion, improve its solubilization and enabling its removal from natural complexes or from minerals [29]. Low ferric ions availability in the environment results in the reduced growth of pathogens, which ultimately exclude pathogen from niche (Hibbing et al 2010).…”

Section: Siderophoresmentioning

confidence: 99%

Antagonistic features displayed by Plant Growth Promoting Rhizobacteria (PGPR): A Review

M¹

2017

J Plant Sci Phytopathol

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Soil dwelling bacteria able to colonize plant roots and closely associated soil are referred to as rhizobacteria. A wide range of rhizobacteria has the ability to promote plant growth directly by producing phytohormone and nutrients; and indirectly by controlling plant pathogen. These benefi cial bacteria are known as plant growth promoting rhizobacteria (PGPR). PGPR control phytopathogens by producing chemicals that could damage pathogen cells, removing pathogen specifi c nutrients from the environment, or inducing resistance against pathogen in plant body. Antagonistic bacteria specifi cally damage pathogens by producing lytic enzymes, antibiotics and bacteriocins; and excluding pathogen from plant environment by siderophores oriented iron chelation. This review highlights the antagonistic feature of PGPR. Application of antagonistic bacteria as biopesticides is an attractive alternate of chemical pesticides. Chemical pesticides are non-targeted and cause pollution during its synthesis as well as at the site of application. Antagonistic bacteria could be used as biopesticides and biofertilizers for better plant health and growth improvement.

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“…Author(s) agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License tolerance and disease control (Zhou et al, 2015;Selvaraj et al, 2014). Among the known PGPRs are the species of the genus, Pseudomonas and Burkholderia that have been described (Sundaramoorthy et al, 2013).…”

Section: Introductionmentioning

confidence: 97%

Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method

Arriel-Elias¹,

Oliveira²,

Silva-Lobo³

et al. 2018

Afr. J. Microbiol. Res.

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Plant growth promoting rhizobacteria (PGPR) are a specific group of bacteria interacting beneficially with plants. Among the known PGPRs, the species Pseudomonas fluorescens and Burkholderia pyrrocinia have been highlighted in both growth promotion and control of rice diseases. Ensuring the stability of the microorganism during production, formulation, distribution and storage has been a challenge for these species. In this context, the objective of this work was to develop liquid formulations, through a simplified process, that allows increase in the shelf life of these rhizobacteria for commercial application. Both bacteria were tested in 32 formulations under two storage temperature conditions: 8 and 28°C, resulting in 64 treatments for each species, which were evaluated for 180 days. Combinations of the adjuvants: molasses, glycerol, NaCl, PVP, MgSO 4 , K 2 HPO 4 and yeast extract were evaluated. Formulations containing molasses, stored at 8°C, were considered the most efficient in maintaining microbial viability. The method used was considered efficient to select three formulations that allowed maintenance of the concentration of viable cells of P. fluorescens and B. pyrrocinia in 10 8 cfu.mL -1 , for at least 90 and 150 days, respectively, not interfering with bacterial action potential.

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Root and bacterial secretions regulate the interaction between plants and PGPR leading to distinct plant growth promotion effects

Cited by 114 publications

References 83 publications

Combination of agricultural waste compost and biofertilizer improves yield and enhances the sustainability of a pepper field

Combination of agricultural waste compost and biofertilizer improves yield and enhances the sustainability of a pepper field

Antagonistic features displayed by Plant Growth Promoting Rhizobacteria (PGPR): A Review

Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method

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