Microbe-Mediated Plant Growth Promotion: A Mechanistic Overview on Cultivable Plant Growth-Promoting Members

Pattnaik, Swati; Mohapatra, Balaram; Kumar, Upendra; Pattnaik, Matrujyoti; Samantaray, Deviprasad

doi:10.1007/978-3-030-18933-4_20

Cited by 8 publications

(17 citation statements)

References 96 publications

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“…Nitrogen is required to increase soil fertility, and phosphorus is a necessary macro-nutrient for host plant developmental growth. Nitrogen and phosphorous are crucial for the constant development in chemically formed supplements and developing various biological tools to improve soil fertility for maintaining microbial ecological competency ( Pattnaik et al., 2019 ).…”

Section: Pseudomonas Mediated Establishment Of Rhizospheric Competencymentioning

confidence: 99%

Pseudomonas mediated nutritional and growth promotional activities for sustainable food security

Sah

Krishnani

Singh

2021

Current Research in Microbial Sciences

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Highlights Fluorescent and non-fluorescent species of Pseudomonas are important for plant growth promotion, phytopathogenic control and plant disease management. Pseudomonas belong to Pseudomonadaceae family (10 groups on the basis of rRNA-DNA hybridization) classified into 6-subgroups of rRNA gene homology and RFLP. Pseudomonas species produce antagonistic mechanism such as ISR and compounds like cell wall degradation enzymes, and antibiotics to maintain a mutualistic relationship with the associated plant. Pseudomonas sp. synthesize auxins having properties similar to phytohormones like IAA, which act as signaling molecules for regulating plant growth.

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Section: Pseudomonas Mediated Establishment Of Rhizospheric Competencymentioning

confidence: 99%

Pseudomonas mediated nutritional and growth promotional activities for sustainable food security

Sah

Krishnani

Singh

2021

Current Research in Microbial Sciences

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“…The availability and abundance of such compounds in the root vicinity exert selection pressure on the microbial community to evolve as an efficient plant colonizer (Olanrewaju et al, 2019). In the context of plant-associated microbiome, in recent years, many rhizospheric colonizers have been found to display novel PGP activities and have emerged as a promising tool for agricultural application (Pattnaik et al, 2019). First, it is important to know plant-associated (ectosphere, endosphere, phyllosphere, and rhizosphere) microbial communities (who is/are there?)…”

Section: Pgp Microbes and Its Diversitymentioning

confidence: 99%

“…Recent surge in food demand, unavoidable and excessive use of chemical fertilizers during agricultural practices, increased industrialization-led discharge of synthetic pollutants, altered land use pattern, and extreme climatic factors are seriously affecting soil health and crop productivity (Alori et al, 2020;Lehmann et al, 2020). The fertilizer-based mono-cropping model is posing an extra layer of harmful effects on human, soil health, and biota (Kumar et al, 2017;Pattnaik et al, 2019). Additionally, ecological stresses (abiotic: soil salinity, drought, pH of soil, environmental temperature, ozone, toxic metals, and low nutrient concentration; biotic: disease and pest, singly or in combination) have become primary hurdles of crop production in different agro-ecologies (Zhu, 2016;Ahmed et al, 2020;Janni et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Plant Growth-Promoting Microbe Mediated Uptake of Essential Nutrients (Fe, P, K) for Crop Stress Management: Microbe–Soil–Plant Continuum

2021

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The indiscriminate and intensive use of agrochemicals in developing nations to enhance crop productivity has posed an alarming threat to soil quality, fertility, biodiversity, food safety, agricultural sustainability, and groundwater quality, thus critically affecting planetary health and food productivity. Additionally, both abiotic and biotic stresses and developmental disorders, i.e., disease susceptibility, hormonal imbalance, and nutritional deficiency, are the major constraints on crop productivity. In this context, the use of soil–plant associated microbiomes “phytomicrobiome,” especially rhizospheric microbiota, in combination with agronomic practices (nutrient, water, and resource management, as integrated management options: INM/IPM/IWM) is the most promising alternative for managing soil health and crop productivity. The global recognition of plant/soil-associated microbiome has generated substantial investment of public and private bodies to grow microbe-based food products. However, understanding the molecular, genetic, physiological, and ecological aspects of phytomicrobiome toward sustainable agriculture would require broad attention along with associated environmental/physico-chemical control points. The underpinning mechanisms of plant–microbe interactions are of immense significance for strategizing host selection (single culture/consortia) and its field application. Taxa such as Rhizobium, Pseudomonas, Alcaligenes, Burkholderia, Sphingomonas, Stenotrophomonas, Arthrobacter, Bacillus, and Rhodococcus have emerged as promising plant growth-promoting (PGP) candidates with diverse beneficial traits, such as, producing phyto-hormones, volatile organics, antibiotics for disease suppression, N2-fixation, Fe uptake, and extracellular enzymes, but several physico-chemical constraints/extremities limit the field application (on-site) of such microbes. Hence, a detailed overview on genomic, physiological, metabolic, cellular, and ecological aspects is necessitated. Thorough insights into nutrient acquisition (especially limiting nutrients like Fe and P) during abiotic stress are still under-studied, so the use OMICS, robust bioinformatics pipeline/tools, might greatly revolutionize the field of PGP microbial ecology (complex plant–microbe interactions) for application in agricultural sustainability, nutritional security, and food safety. This review focusses on critical aspects of mechanisms of Fe and P transport-uptake (nutrient acquisition) by various PGP microbes, and their metabolism, genetics, and physiology relevant for managing stress and better crop production.

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“…Pseudomonas sp. is able to inhibit diseases caused by many pathogens and possesses antimicrobial, antifungal, and antiviral properties, in addition to providing protection against insects ( Kumari et al, 2019 ; Pattnaik et al, 2019 , Supplementary Table 6 ). These fast-growing genera induce systemic resistance and produce different compounds including antibiotics, polysaccharides, or siderophores (limiting iron for phytopathogens, Santoyo et al, 2012 ).…”

Section: Discussionmentioning

confidence: 99%

Description of Microbial Communities of Phosphate Mine Wastes in Morocco, a Semi-Arid Climate, Using High-Throughput Sequencing and Functional Prediction

et al. 2021

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Soil microbiota are vital for successful revegetation, as they play a critical role in nutrient cycles, soil functions, and plant growth and health. A rehabilitation scenario of the abandoned Kettara mine (Morocco) includes covering acidic tailings with alkaline phosphate mine wastes to limit water infiltration and hence acid mine drainage. Revegetation of phosphate wastes is the final step to this rehabilitation plan. However, revegetation is hard on this type of waste in semi-arid areas and only a few plants managed to grow naturally after 5 years on the store-and-release cover. As we know that belowground biodiversity is a key component for aboveground functioning, we sought to know if any structural problem in phosphate waste communities could explain the almost absence of plants. To test this hypothesis, bacterial and archaeal communities present in these wastes were assessed by 16S rRNA metabarcoding. Exploration of taxonomic composition revealed a quite diversified community assigned to 19 Bacterial and two Archaeal phyla, similar to other studies, that do not appear to raise any particular issues of structural problems. The dominant sequences belonged to Proteobacteria, Bacteroidetes, Actinobacteria, and Gemmatimonadetes and to the genera Massilia, Sphingomonas, and Adhaeribacter. LEfSe analysis identified 19 key genera, and metagenomic functional prediction revealed a broader phylogenetic range of taxa than expected, with all identified genera possessing at least one plant growth-promoting trait. Around 47% of the sequences were also related to genera possessing strains that facilitate plant development under biotic and environmental stress conditions, such as drought and heat.

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Microbe-Mediated Plant Growth Promotion: A Mechanistic Overview on Cultivable Plant Growth-Promoting Members

Cited by 8 publications

References 96 publications

Pseudomonas mediated nutritional and growth promotional activities for sustainable food security

Pseudomonas mediated nutritional and growth promotional activities for sustainable food security

Plant Growth-Promoting Microbe Mediated Uptake of Essential Nutrients (Fe, P, K) for Crop Stress Management: Microbe–Soil–Plant Continuum

Description of Microbial Communities of Phosphate Mine Wastes in Morocco, a Semi-Arid Climate, Using High-Throughput Sequencing and Functional Prediction

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