Soil-Plant-Microbe Interactions in Stressed Agriculture Management: A Review

Vimal, Shobhit Raj; Singh, Jay Shankar; Arora, Naveen Kumar; Singh, Surendra

doi:10.1016/s1002-0160(17)60309-6

Cited by 264 publications

(132 citation statements)

References 105 publications

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“…It could be inferred that the higher radiation intensity might have modified the quantity and chemical composition of root exudates, affecting rhizodeposition processes and disturbing rhizosphere functioning (Haichar et al., ; Venturi & Keel, ; Vimal et al., ), especially in P. fluorescens . This could have interfered in the quorum sensing, inhibiting the mutual interaction under full sun (Goh et al., ; Venturi & Keel, ).…”

Section: Discussionmentioning

confidence: 99%

“…Beneficial micro-organisms are known to improve nutrient uptake, phosphorus solubilization, phytohormone production and disease resistance by elicited induced systemic resistance or systemic acquired resistance. Also, beneficial micro-organisms modify the phenotypic plasticity of plants, by mitigating the negative impact of abiotic stresses (Goh, Vallejos, Nicotra, & Mathesius, 2013;Paredes & Lebeis, 2016;Vacheron et al, 2013;Vimal, Singh, Arora, & Singh, 2017), including light limitation (Konvalinkov a & Jansa, 2016).…”

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confidence: 99%

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Light and plant growth‐promoting rhizobacteria effects on Brachiaria brizantha growth and phenotypic plasticity to shade

Lopes

Dias‐Filho

Castro

et al. 2017

Grass and Forage Science

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This is the first report on the effect of light intensity and plant growth‐promoting rhizobacteria (PGPR) on the growth of a tropical forage grass, being a relevant study to improve pasture management in conventional farming and integrated crop‐livestock‐forestry systems. In this study, our aim was to evaluate the effects of light intensity and Burkholderia pyrrocinia and Pseudomonas fluorescens inoculation on Brachiaria brizantha cv. BRS Piatã growth, and phenotypic plasticity to shade. The experiment was conducted in a semi‐controlled environment. Seedlings of B. brizantha were allocated to full sun and shade. P. fluorescens and B. pyrrocinia were inoculated individually or co‐inoculated by soil drench, 14 days after seedling emergence. We evaluated morphogenesis, structural and growth parameters. Irrespective of the light regime, co‐inoculated plants had greater leaf area and SPAD index (chlorophyll content). Increase in total biomass production in co‐inoculated plants was over 100% and 300%, under full sun and shade respectively. Co‐inoculated P. fluorescens and B. pyrrocinia increased shade tolerance in B. brizantha, improving plant performance. Co‐inoculation promoted growth in B. brizantha under both sun and shade, indicating its potential as a bio‐fertilizer in conventional and integrated systems, especially in silvopastoral systems, where light availability to pasture growth may be limited.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Light and plant growth‐promoting rhizobacteria effects on Brachiaria brizantha growth and phenotypic plasticity to shade

Lopes

Dias‐Filho

Castro

et al. 2017

Grass and Forage Science

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“…Indigenous rhizobacteria are usually adapted to local climatic conditions and are resistant to local environmental stresses such as drought, salinity, high temperature, nutrient deficiency or heavy metals ( Grover et al, ). The capacity of PGPR to promote crop yield under unfavorable environmental conditions highlights them as a sustainable tool to enhance production, especially under the predicted drier and harsher global climatic scenarios ( Vimal et al, ).…”

Section: Introductionmentioning

confidence: 99%

Inoculation of tomato plants with selected PGPR represents a feasible alternative to chemical fertilization under salt stress

Cordero

Balaguer

Rincón

et al. 2018

J. Plant Nutr. Soil Sci.

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Plant growth‐promoting rhizobacteria (PGPR) are soil bacteria that colonize the rhizosphere of plants, enhance plant growth, and may alleviate environmental stress, thus constituting a powerful tool in sustainable agriculture. Here, we compared the capacity of chemical fertilization to selected PGPR strains to promote growth and alleviate salinity stress in tomato plants (Solanum lycopersicum L.). A pot experiment was designed with two main factors: fertilization (chemical fertilization, bacterial inoculation with seven PGPR, or a non‐fertilized non‐inoculated control) and salt stress (0 or 100 mM NaCl). In the absence of stress, a clear promotion of growth, a positive effect on plant physiology (elevated Fv/Fm), and enhanced N, P, and K concentrations were observed in inoculated plants compared to non‐fertilized controls. Salinity negatively affected most variables analyzed, but inoculation with certain strains reduced some of the negative effects on growth parameters and plant physiology (water loss and K+ depletion) in a moderate but significant manner. Chemical fertilization clearly exceeded the positive effects of inoculation under non‐stressed conditions, but conversely, biofertilization with some strains outperformed chemical fertilization under salt stress. The results point at inoculation with selected PGPR as a viable economical and environment‐friendly alternative to chemical fertilization in salinity‐affected soils.

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“…PGPR enhanced the biomass and increased the dry matter yield of plants by reducing ethylene levels and production of different phytohormones, that is, gibberellins and auxin under PTEs contamination . It is also well documented that PGPR containing ACC‐deaminase is helpful in decreasing the ethylene levels in plants by converting ACC (ethylene precursor) to ammonia and α‐ketobutyrate . Thus selected PGPR which possess ACC‐deaminase facilitates C. cyanus growth by reducing ethylene stress, and decreasing Pb stress in plants.…”

Section: Resultsmentioning

confidence: 98%

“…Although inoculation of autochthonous AMF and PGPR have shown to be an effective strategy in bioremediation of sterilized soils artificially spiked by PTEs, the effect of microbial inoculation on PTEs phytoremediation depends upon various factors such as plant genotype, microbial species, types and concentrations of PTEs, and physicochemical properties of soils . While researches have been conducted to study these effects, investigations on various AMF/PGPR species are rare for calcareous soils and wild plants, suggesting a promising research field that needs to be further studied.…”

Section: Introductionmentioning

confidence: 99%

Microbial‐Enhanced Phytoremediation of Lead Contaminated Calcareous Soil by Centaurea cyanus L

Karimi

Khodaverdiloo

Rasouli-Sadaghiani

2018

CLEAN Soil Air Water

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Microbe‐assisted phytoremediation is a promising technology for remediation of potentially toxic element contaminated soils. A greenhouse study was conducted to assess the effect of Pseudomonas spp. and Glomus spp. on phytoremediation of a Pb‐contaminated calcareous soil by Centaurea cyanus L. The study was carried out as a factorial experiment arranged in a randomized complete block design with three replications. Factors are microbial inoculation in three levels (mix inoculation with Glomus spp. or Pseudomonas spp. and non‐inoculated) and four Pb concentrations (0, 250, 500, and 1000 mg kg−1) in soil. The results revealed that microbial inoculation significantly increased the shoot dry weight and Pb accumulation in C. cyanus compared to non‐inoculated plants. Comparison of microbial treatments indicated that higher shoot Pb concentration, shoot modified bioconcentration factor (shoot mBCF, 5.33–5.63) and translocation factor (TF, 1.09–1.2) are obtained for Pseudomonas spp. inoculation, while higher plant biomass, plant Pb accumulation, root Pb concentration, root mBCF (5.91–6.46) and lower TF (0.77–0.99) are recorded for Glomus spp. inoculation. These results show that Pseudomonas spp. and Glomus spp. are more effective in phyotoextraction and phytostabilization of Pb by C. cyanus, respectively. It could be concluded that Pseudomonas spp. and Glomus spp. would be a promising strategy in bioremediation of Pb‐contaminated soils, especially at medium levels of soil Pb contamination (250 and 500 mg kg−1).

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Soil-Plant-Microbe Interactions in Stressed Agriculture Management: A Review

Cited by 264 publications

References 105 publications

Light and plant growth‐promoting rhizobacteria effects on Brachiaria brizantha growth and phenotypic plasticity to shade

Light and plant growth‐promoting rhizobacteria effects on Brachiaria brizantha growth and phenotypic plasticity to shade

Inoculation of tomato plants with selected PGPR represents a feasible alternative to chemical fertilization under salt stress

Microbial‐Enhanced Phytoremediation of Lead Contaminated Calcareous Soil by Centaurea cyanus L

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