Comparative phosphate solubilizing efficiency of psychrotolerant Pseudomonas jesenii MP1 and Acinetobacter sp. ST02 against chickpea for sustainable hill agriculture

Rajwar, Jyoti; Chandra, Ramesh; Suyal, Deep Chandra; Tomer, Supriya; Kumar, Saurabh; Goel, Reeta

doi:10.2478/s11756-018-0089-3

Cited by 34 publications

(26 citation statements)

References 34 publications

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“…These soil microbes perform a significant role in soil by their metabolic activities and are a remarkable part of integrated nutrient management in the soil, as they improve the plant's nutrient acquisition from the soil. These microorganisms serve as potent biofertilizers that improve the agricultural yield in harmony with ecological concerns (Rajwar et al 2018). PSMs are diverse in their functions.…”

Section: Phosphate-solubilizing Microorganisms (Psms)mentioning

confidence: 99%

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Rawat

Das

Shankhdhar

et al. 2020

J Soil Sci Plant Nutr

280

130

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Phosphorus is the second most critical macronutrient after nitrogen required for metabolism, growth, and development of plants. Despite the abundance of phosphorus in both organic and inorganic forms in the soil, it is mostly unavailable for plant uptake due to its complexation with metal ions in the soil. The use of agrochemicals to satisfy the demand for phosphorus to improve crop yield has led to the deterioration of the ecosystem and soil health, as well as an imbalance in the soil microbiota. Consequently, there is a demand for an alternate cost-effective and eco-friendly strategy for the biofortification of phosphorus. One such strategy is the application of phosphate-solubilizing microorganisms which can solubilize insoluble phosphates in soil by different mechanisms like secretion of organic acids, enzyme production, and excretion of siderophores that can chelate the metal ions and form complexes, making phosphates available for plant uptake. These microbes not only solubilize phosphates but also promote plant growth and crop yield by producing plant-growth-promoting hormones like auxins, gibberellins, and cytokinins, antibiosis against pathogens, 1-aminocyclopropane-1-carboxylic acid deaminase which enhances plant growth under stress conditions, improving plant resistance to heavy metal toxicity, and so on. Pyrroloquinoline quinine (pqq) and glucose dehydrogenase (gcd) are the representative genes for phosphorus solubilization in microorganisms. The content presented in this review paper focuses on different mechanisms and modes of action of phosphate-solubilizing microorganisms, their contribution to phosphorus solubilization, growth-promoting attributes in plants, and the molecular aspects of phosphorus solubilization.

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Section: Phosphate-solubilizing Microorganisms (Psms)mentioning

confidence: 99%

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Rawat

Das

Shankhdhar

et al. 2020

J Soil Sci Plant Nutr

280

130

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“…Pant Mung 4) and chickpea (Cicer arietrinum L. var. PG-186) as per the previous reports (Rajwar et al 2018).…”

Section: Seed Germination Efficiencymentioning

confidence: 76%

“…Psychrotolerant bacterial strains P. palleroniana N26 (JN055435) and P. jesenii MP1 (JX310329) were isolated from Nainital (29.23°N/79.30°E, 2084 m above the mean sea level) and Munsyari (30.07°N/80.23°E, 2200 m above the mean sea level), respectively (Table SM 1). Both the strains were already known for their nitrogen fixation (Suyal et al 2018) and P solubilization potential (Rajwar et al 2018), respectively, and grown aerobically in nutrient agar medium at 28 ± 1°C during the experiment.…”

Section: Bacterial Strains and Growth Conditionmentioning

confidence: 99%

“…After this, 0.1% CMC (carboxy methyl cellulose) was added in the fresh bacterial culture having 0.6 OD 600 . Bio-inoculants were inoculated by seed bacterization at approximately1 .9 × 10 8 (± 1.1 × 10 2 ) cfu seed −1 at the time of sowing (Rajwar et al 2018). There were three replicates for treatment and a control.…”

Section: Seed Bacterization and Sowingmentioning

confidence: 99%

“…Himalaya, a natural heritage with complex but fragile ecological resources, is a predominant source of fresh water supply for low laying areas, and therefore, any anthropogenic contamination within it will disperse throughout the river front (Rajwar et al 2018). Himalayan soils are considered acidic with lesser Nitin Rawat and Mansi Sharma contributed equally to this work.…”

Section: Introductionmentioning

confidence: 99%

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Psyhcrotolerant Bio-inoculants and Their Co-inoculation to Improve Cicer arietinum Growth and Soil Nutrient Status for Sustainable Mountain Agriculture

Rawat

Sharma

Suyal

et al. 2019

J Soil Sci Plant Nutr

Self Cite

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Chickpea (Cicer arietinum) is the most important pulse crop across the Himalayan regions, characterized with extreme as well as nutritionally deficient habitats. Considering the adverse effects of chemical fertilizers, bio-inoculants should be encouraged as natural Bnutrient^resource. Two indigenous bio-inoculants i.e. psychrotolerant diazotroph Pseudomonas palleroniana strain N26 and phosphate solubilizer Pseudomonas jesenii strain MP1 were evaluated for their plant growth promoting potential against chickpea in organic and conventionally managed soils under natural net house conditions. Furthermore, denaturing gradient gel electrophoresis (DGGE) and real-time PCR (qPCR) techniques were used to analyse the microbial diversity and dynamics during the experiment. Comparative agronomical and biochemical crop parameters revealed that organic soils co-inoculated with bioinoculants have 24.69%, 37.42%, 100.65%, 83.33%, 60.86% and 103.05% improvement in plant shoot length, root length, dry weight, fresh weight, chlorophyll content and nitrate reductase activity, respectively, over the control. Similarly, organic carbon, nitrogen, phosphorus and potassium content of co-inoculated soils was at par with their respective controls. Moreover, qPCR and DGGE-based soil bacterial dynamics unveiled the persistence of both the strains until the end of crop maturity without affecting the native micro-flora. Conclusively, bio-inoculants alone were found sufficient to fulfil crop nutritional requirement. Moreover, their co-inoculation showed significant potential for chickpea growth and development under organically managed soils, and therefore, additional incentive in their bio-formulation will be a step forward towards zero budget mountain farming.

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Phosphate-Solubilizing Fungi: Current Perspective and Future Need for Agricultural Sustainability

Suyal

Singh

et al. 2021

Fungal Biology

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Comparative phosphate solubilizing efficiency of psychrotolerant Pseudomonas jesenii MP1 and Acinetobacter sp. ST02 against chickpea for sustainable hill agriculture

Cited by 34 publications

References 34 publications

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Psyhcrotolerant Bio-inoculants and Their Co-inoculation to Improve Cicer arietinum Growth and Soil Nutrient Status for Sustainable Mountain Agriculture

Phosphate-Solubilizing Fungi: Current Perspective and Future Need for Agricultural Sustainability

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