Isolation of phosphate solubilizing fungi from rhizosphere soil and its effect on seed growth parameters of different crop plants

Mahadevamurthy, Murali; Channappa, Thriveni M; Sidappa, Manjula; Raghupathi, Mythrashree S; Nagaraj, Amruthesh Kestur

doi:10.7324/jabb.2016.40604

Cited by 12 publications

(8 citation statements)

References 14 publications

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“…Regarding to germination process, spore suspension and cultural filtrate of the two fungal strains improved seed germination and seedling vigor of treated wheat grains in consistence to the previous studies concerned with treatment of plant seeds with fungal strains (Gizaw et al, 2018;Trizelia, 2020). The positive effect of fungal filtrates (Garuba et al, 2014) and spore suspension (Mahadevamurthy et al, 2016) on germination criteria may be due to the effect of fungal filtrate extract on pregerminating metabolic activities and mediation of cell division in germinating seeds that make radicle protrusion of the extract treated seed germinated earlier than untreated seeds. In addition, the extrolites of fungal inducers may be associated with the stimulation of reserve mobilization of food material, stimulation and re-production of some enzymes, biosynthesis of DNA and RNA causing improvement of germination and vigor of seed (Kumari& Nanayakkara, 2017).…”

Section: Discussionsupporting

confidence: 74%

Improvement of Germination, Phosphate Efficiency, Antioxidants, Metabolic Products, and Yield of Wheat Plants by Aspergillus niger and Penicillium chrysogenum

et al. 2022

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I NCREASING the efficiency of phosphate fertilizer by biofertilizers is an interesting goal as a way to potentiate the phosphate-fertilizers.The present study includes the use of culture filtrate (CF) or conidial suspension (CS) of two isolated rhizospheric fungi (RF) in germination solution of wheat plants or pots filled with soils fertilized with superphosphate or rock phosphate. The RF were morphologically and genetically identified as Penicillium chrysogenum (AUMC 14100) and Aspergillus niger (AUMC 14260) that were able to produce indole acetic acid (IAA) and solubilize phosphate. Applying CF or CS of the strains separately or in consortium enhanced the germination percentage and vigor index of wheat plants. For pot experiment, CF or CS initiate their positive effect on plant in two ways: a) enhancement of soil properties (increment of organic matter, reduction of pH, enrichment the soil with higher soluble phosphate, calcium, and magnesium); b) stimulation of growth, biochemical status, nutrients content, and the yield of wheat plants. The applied biofertilizers enhanced chlorophyll, primary metabolites, phenolics, ascorbic acid, and tocopherol contents. The application of CF and/or CS exerted no oxidative damage on wheat rather H 2 O 2 or lipid peroxidation was reduced due to the activation of various antioxidant enzymes. Furthermore, the root and shoot tissues of treated wheat enriched with high contents of calcium, magnesium, and phosphate improve phosphate-related traits. All up-regulations under biofertilizers application reflected on high yield of wheat plants.The study recommends application of CF side by side to P-fertilizers for up-scaling their efficiency and enhancing plant development.

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Section: Discussionsupporting

confidence: 74%

Improvement of Germination, Phosphate Efficiency, Antioxidants, Metabolic Products, and Yield of Wheat Plants by Aspergillus niger and Penicillium chrysogenum

et al. 2022

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“…Phosphate fertilizers are required for crop production, inoculation of plants with PSF generally results in improved plant growth and yield. The results are contradictory to the ndings of Mahadevamurthy et al (2016) who have isolated 22 rhizosphere fungi from different rhizosphere soil of healthy crop plants and 85.75%, 80%, and 83% of seed germination and seedling vigor 985.25, 523 and 673.5 was recorded in pearl millet, brinjal, and tomato, respectively. Similar results were also reported in our work on Methi and Palak with 100% seed germination and seedling vigor index.…”

Section: Discussioncontrasting

confidence: 72%

“…Seed germination was done by the Standard blotter method. The Petri plates with moisten blotter sheets for both upper and lower lids were placed with seeds (16 replicates of 25 seeds each) (Sane and Mehta 2015) and for detection of seedling vigor (Mahadevamurthy et al 2016; Pant and Agrawal 2014), the paper towel method (50 seeds were placed in moisten blotting paper towels of 8 replicates) was followed using the following formula.…”

Section: Seed Germination and Seedling Vigormentioning

confidence: 99%

Plant Growth and Phosphate uptake of leafy vegetable - Methi and Palak as influenced by Phosphate Solubilizing Fungi

Jyothi

Akarsh

Manjunatha

et al. 2022

Preprint

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The present study is focused on improving the growth and phosphate uptake of leafy vegetables by supplying phosphate bioinoculants. For the study of plant growth and phosphate uptake in leafy vegetables, a total of 41 PSF were isolated, from the 50 rhizosphere soil samples through a serial dilution method using Pikovskaya’s medium. Among them, 6 PSF were selected with maximum solubilization index (3.08 to 3.86) and further evaluated their phosphate solubilization ability under laboratory and field conditions. The selected 6 PSF showed good results in decreased pH (4.0 to 3.1 from initial pH of 6.89), titrable acidity (30.16g/L to 38.08g/L), and concentration of phosphate in culture broth was (60µg to 25µg). With these results, the PSF bio inoculants were prepared and treated with selected seeds of methi and palak under field trials. Among the selected six PSF, PSF 39 (Penicillium oxalicum) showed maximum plant growth and yield in methi, the parameters including plant height and number of leaves (7.8cm, 15 leaves at 15 days after sowing and 10.1cm, 21 leaves at harvest), root length (5.5cm), biomass (2.11g of fresh weight and 1.01g of dry weight) and yield of leafy vegetable (2.01g). The maximum plant phosphorus uptake was recorded in plants (0.393%) and maximum P (Kg/ha) available in the rhizosphere soil was recorded (346.96Kg/ha). PSF 38 (Aspergillus japonicus) showed maximum plant growth and yield in palak, the parameters including plant height and number of leaves (15.7cm, 8 leaves at 15 days after sowing and 30.6cm, 11 leaves at harvest), root length (10.9cm), biomass (11.23g of fresh weight and 3.82g of dry weight) and yield of leafy vegetable (10.32g). The maximum plant phosphorus uptake was recorded in plants (0.369%) and maximum P (Kg/ha) available in the rhizosphere soil was recorded (346.29 Kg/ha).

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“…and checked the rock P solubilization and their seed germination in bajra seeds. Mahadevamurthy et al, (2016)…”

Section: Seed Germination and Seedling Vigormentioning

confidence: 99%

Effect of Phosphate Solubilizing Fungi from Rhizosphere soil of Medicinal plants on Growth and Phosphate uptake in Raphanus sativus

Jyothi¹,

Thippeswamy²

2022

ijcsrr

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This field experiment deals with the isolation and evaluation of phosphate solubilizing fungi of a total of 9 isolates isolated from 10 rhizosphere soil of medicinal plants by serial dilution method using Pikovaskaya’s medium. After screening, 3 fungi were selected and evaluated, PSF 7 (Talaromyces sp.) showed good results in phosphate solubilization including solubilization index (3.08), reduced pH (3.2 from initial pH 6.8), titrable acidity (38.08), and phosphate present in culture broth (25µg/ml). The radish seeds showed 88% germination and growth, yield parameters include, plant height – 20.9cm, 40.8cm, and 71.5cm at 15 days, 30 days, and harvest respectively, several leaves at 9, 13, and 17 at 15 days, 30days and harvest respectively, root length (24.5cm), the weight of biomass (fresh weight -152 and dry weight – 15.7) and yield of root vegetable weight (39g). The maximum plant phosphorus uptake was recorded as 0.371% and the maximum P (Kg/ha) available in the rhizosphere soil was recorded as 344.29 Kg/ha. Due to the observation of good results in phosphate solubilization, they improve the growth and yield of radish. The selected PSF were recommended as phosphate bio inoculums in the agricultural field to improve plant growth and yield in radish and to maintain soil fertility.

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Isolation of phosphate solubilizing fungi from rhizosphere soil and its effect on seed growth parameters of different crop plants

Cited by 12 publications

References 14 publications

Improvement of Germination, Phosphate Efficiency, Antioxidants, Metabolic Products, and Yield of Wheat Plants by Aspergillus niger and Penicillium chrysogenum

Improvement of Germination, Phosphate Efficiency, Antioxidants, Metabolic Products, and Yield of Wheat Plants by Aspergillus niger and Penicillium chrysogenum

Plant Growth and Phosphate uptake of leafy vegetable - Methi and Palak as influenced by Phosphate Solubilizing Fungi

Effect of Phosphate Solubilizing Fungi from Rhizosphere soil of Medicinal plants on Growth and Phosphate uptake in Raphanus sativus

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