Phosphorus Solubilization and Plant Growth Promotion Ability of Rhizobacteria of R. communis L Growing in Assam, India

Sandilya, Sosanka Protim; Bhuyan, Pinky Moni; Gogoi, Dhrubajyoti; Kardong, Devid

doi:10.1007/s40011-016-0833-9

Cited by 10 publications

(9 citation statements)

References 29 publications

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“…Five healthy plants were randomly selected from each different site mentioned above and roots and root-adhered soil samples were collected. Root soil samples (five) from each block were mixed into one composite sample, collected in polypropylene bags and kept in ice boxes before carrying to the laboratory [ 18 , 23 ].…”

Section: Methodsmentioning

confidence: 99%

“…7H 2 O 0.25 gL -1 , KCl 0.2 gL -1 , (NH 4 ) 2 SO 4 0.1 gL -1 , Agar 15 gL -1 and at pH 7.0) and allowed to grow for 48 h at 32 °C [ 28 ]. Halozones diameters developed around the colonies and their solubilization indexes (SI) were calculated [ 18 ]. We also estimated the available phosphate by Vanadomolybdate colorimetric assay method [ 29 ].…”

Section: Methodsmentioning

confidence: 99%

“…Castor grows abundantly in uncultivated wastelands and contaminated sites (road or urban dumpsites) and disease incidences in those plants are comparatively less (unpublished field survey data). There might be certain groups of PGPR which colonize in plant rhizosphere promoting plant growth, abiotic stress tolerance and nutrient fixation for easy uptake producing plant growth regulators, siderophores, volatile organic compounds and protective enzymes such as chitinase, glucanase and ACC-deaminase [ 16 , 17 , 18 , 19 ]. Native rhizobacteria interact with the plant promoting seed germination, root-shoot growth, delayed leaf senescence and tolerance to stresses [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

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Co-inoculation of native multi-trait plant growth promoting rhizobacteria promotes plant growth and suppresses Alternaria blight disease in castor (Ricinus communis L.)

Sandilya

Jeevan

Subrahmanyam

et al. 2022

Heliyon

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Co-inoculation of native multi-trait plant growth promoting rhizobacteria promotes plant growth and suppresses Alternaria blight disease in castor (Ricinus communis L.)

Sandilya

Jeevan

Subrahmanyam

et al. 2022

Heliyon

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“…Diverse studies show that PGPB associated with the rhizosphere of plants have beneficial effects on plant growth, such as Bacillus [12,13]. Several species have been detected inside this genus that show potential as promoters of plant growth [14,15]. Bacillus pumilus promotes growth in beans [16] and in different varieties of rice [17], mustard, and radish [18].…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Plant Growth-Promoting Compost Bacteria That Improved Physiological Characteristics in Tomato and Lettuce Seedlings

et al. 2021

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Currently, agricultural systems are inadequate to meet the demand of the population, coupled with the constant degradation of natural resources. Therefore, it is necessary to explore alternatives to increase the productivity and quality of crops with minimal environmental impact. The use of plant growth-promoting bacteria can provide solutions to some agri-environmental problems and replace or minimize conventional agricultural practices. In this study, a Bacillus pumilus strain with plant growth-promoting properties was isolated from mature compost. In vitro, the ability of Bacillus pumilus to solubilize phosphate, inhibit the growth of phytopathogenic fungi, and its effect on the germination of tomato and lettuce seeds was evaluated. In vivo, its effect on stem thickness, height, and the number of leaves of tomato and lettuce seedlings was studied. The results show that, in vitro, Bacillus pumilus solubilizes phosphate, inhibits the growth of the fungus Fusarium oxysporum, and increases the germination percentage of tomato seeds. The results, in vivo, demonstrate that the bacteria increases the stem thickness of tomato seedlings, while, in lettuce, it increases the stem thickness and the number of leaves. The outcome implies that Bacillus pumilus has properties as a plant growth promoter and can be used as a promising inoculant to enhance the growth of tomato and lettuce seedlings.

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“…Eri culture is a small scale textile industry endemic to the Northeastern states of India and has been a prime source of income among the people of this region since immemorial time (Sandilya et al, 2016). It is mainly concerned with the production of commercial silk and warm cloth and the production parameter lies mostly on the consumption of quality leaves.…”

Section: Introductionmentioning

confidence: 99%

Impact of Pseudomonas aeruginosa MAJ PIA03 affecting the growth and phytonutrient production of castor, a primary host-plant of Samia ricini

Sandilya

Bhuyan

Nageshappa

et al. 2017

J. Soil Sci. Plant Nutr.

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Castor (Ricinus communis L.) is a primary food plant of eri silkworm, Samia ricini Donovan endemic to Northeast India. Plant growth promoting rhizobacteria (PGPR) plays crucial role in growth and productivity of agricultural crops. Eighty-five Pseudomonas strains were isolated from thirty rhizosphere soil samples of castor and their in vitro potentiality was screened for growth promoting ability and antifungal potentialities. Most of the selected Pseudomonas sp. produced indole acetic acid, gibberellic acid, ACC deaminase activity, ammonia, hydrogen cyanide and siderophore, when tested in-vitro for PGP activity. Besides, the strains MAJ PIA01, MAJ PIA03 and MAJ PIA24 have got antifungal activity against five common plant pathogens. Upon their formulation and application in field by curtailing the recommended dose of inorganic fertilizers to 50 %, isolate no. MAJ PIA03 efficiently enhanced the agronomical traits such as number of leaves per plant, leaf biomass, root length, stem base diameter, shoot length, root biomass and leaf moisture content. Isolate no. MAJ PIA03 has significant impact on leaf biochemical constituents and augments the nutritional quality of castor leaf. The most efficient isolate MAJ PIA03 was identified as Pseudomonas aeruginosa MAJ PIA03 by polyphasic approach and its 16S rRNA gene homology. The bio-formulation of Pseudomonas aeruginosa MAJ PIA03 with 50 % diminution on recommended inorganic NPK dose could be used as an effective mechanism to improve Ricinus communis plant growth as well as leaf nutritional enhancement for sustainable eri sericulture.

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Phosphorus Solubilization and Plant Growth Promotion Ability of Rhizobacteria of R. communis L Growing in Assam, India

Cited by 10 publications

References 29 publications

Co-inoculation of native multi-trait plant growth promoting rhizobacteria promotes plant growth and suppresses Alternaria blight disease in castor (Ricinus communis L.)

Co-inoculation of native multi-trait plant growth promoting rhizobacteria promotes plant growth and suppresses Alternaria blight disease in castor (Ricinus communis L.)

Isolation and Characterization of Plant Growth-Promoting Compost Bacteria That Improved Physiological Characteristics in Tomato and Lettuce Seedlings

Impact of Pseudomonas aeruginosa MAJ PIA03 affecting the growth and phytonutrient production of castor, a primary host-plant of Samia ricini

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