Plant Growth-Promoting Rhizobacteria (PGPR): Emergence and Future Facets in Medicinal Plants

Sharma, Shivesh; Singh, Varsha; Kumar, Vivek; Devi, Shikha; Shukla, Keshav Prasad; Tiwari, Akash; Singh, Jaya; Bisht, Sandeep

doi:10.1007/978-3-319-13401-7_6

Cited by 6 publications

(4 citation statements)

References 116 publications

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“…produce hydrolytic enzymes that degrade plant cell walls [ 32 ]. Some other bacterial genera (such as Devosia and Methylobacteriaceae _ uncultured ) belong to the order Rhizobiales in the phylum Proteobacteria ; bacteria in this order contribute to nitrogen fixation and can also release plant growth promoting substances and antibiotics [ 33 ]. The genus SM2D12_norank is in the order Rickettsiales and includes plant pathogens.…”

Section: Resultsmentioning

confidence: 99%

Comparison of chemical and microbiological changes during the aerobic composting and vermicomposting of green waste

et al. 2018

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This research was conducted to compare chemical and microbiological properties during aerobic composting (AC) and vermicomposting (VC) of green waste. Relative to AC, VC significantly decreased the pH and lignin and cellulose contents, and significantly increased the electrical conductivity and total N and available P contents. For AC, BIrii41_norank (order Myxococcales) was the major bacterial genus at 30 d and again became dominant genus from 90–150 d, with relative abundances of 2.88% and 4.77–5.19%, respectively; at 45 d and 60 d, the dominant bacterial genus was Nitrosomonadaceae_uncultured (order Nitrosomonadales) with relative abundances of 2.83–7.17%. For VC, the dominant bacterial genus was BIrii41_norank (except at 45 d), which accounted for 2.11–7.96% of the total reads. The dominant fungal class was Sordariomycetes in AC (relative abundances 39.2–80.6%) and VC (relative abundances 42.1–69.5%). The abundances of microbial taxa and therefore the bacterial and fungal community structures differed between VC and AC. The quality of the green waste compost product was higher with VC than with AC. These results will also help to achieve further composting technology breakthroughs in reducing the composting time and improving compost quality.

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Section: Resultsmentioning

confidence: 99%

Comparison of chemical and microbiological changes during the aerobic composting and vermicomposting of green waste

et al. 2018

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“…Indigenous plant-growth-promoting microorganisms of medicinal plants and their effects in the plant rhizosphere can be used to increase the growth of such species (Sharma et al 2015). Moreover, inoculation of medicinal plants with PGPR could also influence the quality and quantity of bioactive constituents and their potential in agriculture, pharmaceutical and medicine (Sharma et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of three new PGPR and their effects on the growth of Arabidopsis and Datura plants

Rahmoune

Morsli

Khelifi-Slaoui

et al. 2016

Journal of Plant Interactions

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This study characterizes three bacterial strains isolated from plant rhizospheres and evaluates their performance as plant-growth-promoting rhizobacteria. Pseudomonas plecoglossicida strain Pp20 was isolated from the rhizosphere of a date palm in Bechar (Algerian Sahara), Bacillus spec. strain Bt04 isolated from the rhizosphere of pear in Ghardaia (Algerian Sahara) and Lysinibacillus fusiformis strain Lf89 was isolated from the rhizosphere of tomato in Ain Defla (northern Algeria). Their effects on plant growth and development were analyzed in different in vitro cultures: an Arabidopsis thaliana plate assay and two hydroponic systems for Datura stramonium and Datura tatula. Our results show that all strains significantly improve plant growth of the plant species tested and some strains produce a shift in the C/N ratio in A. thaliana. Inoculation had no effect on alkaloid production per gram leaf dry weight in D. stramonium, but specific plant-growth-promoting rhizobacteria interactions may alter the alkaloid composition in the shoot. ARTICLE HISTORY

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“…Although PGPR have shown tremendous increase in the biological and chemical features of many food and industrial crops [140][141][142], the data on the beneficial impact of PGPR on the performance of medicinal plants are relatively scarce [143][144][145] because very few greenhouse/field experiments targeting specifically PGPR-medicinal plant interactions have been conducted. Further, the mechanisms/pathways concerning the synthesis of secondary plant metabolites have not yet been fully understood, but the PGPR may also interact with medicinal plants in ways similar to those adopted by other crops.…”

Section: Rhizobacteria Mediated Improvement In Growth and Phytochemic...mentioning

confidence: 99%

Bioprospecting Plant Growth Promoting Rhizobacteria for Enhancing the Biological Properties and Phytochemical Composition of Medicinally Important Crops

et al. 2022

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Traditionally, medicinal plants have long been used as a natural therapy. Plant-derived extracts or phytochemicals have been exploited as food additives and for curing many health-related ailments. The secondary metabolites produced by many plants have become an integral part of human health and have strengthened the value of plant extracts as herbal medicines. To fulfil the demand of health care systems, food and pharmaceutical industries, interest in the cultivation of precious medicinal plants to harvest bio-active compounds has increased considerably worldwide. To achieve maximum biomass and yield, growers generally apply chemical fertilizers which have detrimental impacts on the growth, development and phytoconstituents of such therapeutically important plants. Application of beneficial rhizosphere microbiota is an alternative strategy to enhance the production of valuable medicinal plants under both conventional and stressed conditions due to its low cost, environmentally friendly behaviour and non-destructive impact on fertility of soil, plants and human health. The microbiological approach improves plant growth by various direct and indirect mechanisms involving the abatement of various abiotic stresses. Given the negative impacts of fertilizers and multiple benefits of microbiological resources, the role of plant growth promoting rhizobacteria (PGPR) in the production of biomass and their impact on the quality of bio-active compounds (phytochemicals) and mitigation of abiotic stress to herbal plants have been described in this review. The PGPR based enhancement in the herbal products has potential for use as a low cost phytomedicine which can be used to improve health care systems.

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Plant Growth-Promoting Rhizobacteria (PGPR): Emergence and Future Facets in Medicinal Plants

Cited by 6 publications

References 116 publications

Comparison of chemical and microbiological changes during the aerobic composting and vermicomposting of green waste

Comparison of chemical and microbiological changes during the aerobic composting and vermicomposting of green waste

Isolation and characterization of three new PGPR and their effects on the growth of Arabidopsis and Datura plants

Bioprospecting Plant Growth Promoting Rhizobacteria for Enhancing the Biological Properties and Phytochemical Composition of Medicinally Important Crops

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