Identification of plant growth promoting Rhizosphere Bacillus sp. WG4 antagonistic to Pythium myriotylum and its enhanced antifungal effect in association with Trichoderma

Jimtha, John C.; Jishma, P.; Arathy, G.B; Anisha, C.; Radhakrishnan, E. K.

doi:10.4067/s0718-95162016005000026

Cited by 32 publications

(18 citation statements)

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“…The m / z peaks representing mass to charge ratio were compared with those in the mass spectrum of NIST (National Institute for Standards and Technology) library of the corresponding organic compound (Jimtha John et al . ).…”

Section: Methodsmentioning

confidence: 97%

“…Pseudomonas spp. used in this study were isolated from the rhizosphere of Phyllanthus amarus ( P. fluorescens , P. taiwanensis and P. monteilii ), Syzygium jambos ( P. putida) and Cnidoscolus aconitifolius ( P. rhodesiae ) as described in our previous study (Jimtha John and Radhakrishnan ). Pentadecane used in the study was purchased from Sigma‐Aldrich (P3406‐25G).…”

Section: Methodsmentioning

confidence: 99%

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Strain-specific variation in plant growth promoting volatile organic compounds production by five different Pseudomonas spp. as confirmed by response of Vigna radiata seedlings

et al. 2017

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Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Strain-specific variation in plant growth promoting volatile organic compounds production by five different Pseudomonas spp. as confirmed by response of Vigna radiata seedlings

et al. 2017

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“…Nevertheless, there are no studies connecting Mimosa calodendron or any other endemic species from this region with the soil microbiota, except a few works demonstrating the relationship of some of these plants to phosphate metabolism (Matias et al, 2009). In contrast, it is known for other models the importance of Plant Growth-Promoting Rhizobacteria (PGPR) in the maintenance and growth of plant species that can act in bioremediation, biocontrol, and biofertilization (Jimtha et al, 2016;Banerjee et al, 2017). In this context, they seem to be fundamental to survival, maintenance and adaptation of plants to FRG.…”

Section: Introductionmentioning

confidence: 94%

Alcaligenes faecalisassociated with Mimosa calodendron rizhosphere assist plant survival in arsenic rich soils

Felestrino

Assis

Lemes

et al. 2017

J. Soil Sci. Plant Nutr.

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The ferruginous rupestrian grasslands (FRG) in the Iron Quadrangle (IQ) are ecosystems characterized by rocky soils with reduced availability of water and nutrients, but high levels of metals. In order to comprehend the interference of microorganisms on the adaptive process of endemic plant Mimosa calodendrum (Fabaceae), bacteria associated with its roots and rhizosphere were isolated. Fourteen isolates were obtained and subsequently grown in the presence of different concentrations of arsenic (As) species. The isolate Mc250, an Alcaligenes faecalis strain, resisted to 10 mM of As (III) and 800 mM of As (V). In the presence of this strain, atomic spectrometer detected a reduction of 55% for As (III) and 72% for As (V) respectively in 10 mM and 500 mM solution. Scanning electron microscopy of this isolate demonstrated morphological modification and EDX spectroscopy revealed the presence of both As species adsorbed on the membrane, justifying the removal observed in the in vitro assays. To validate this potential removal of As in vivo, tomato plants were used as grown model in the presence and absence of A. faecalis in soil previously contaminated with 5 mM of As (III). After 14 days, plants from contaminated soil had their growth improved when compared to untreated control plants. All these results suggest for the first time that plant-associated bacteria from FRG-IQ present potential for soil rhizoremediation and may benefit the adaptive processes of plants in extreme environments including application in recovering degraded areas.

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“…Pseudomonads are the first commercially used microbes isolated from soil as a biological means of plant growth promotion pyrazine-1, 4-dione, hexahydro-3-(phenylmethyl) (Jimtha et al, 2016).…”

Section: Discussionmentioning

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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Identification of plant growth promoting Rhizosphere Bacillus sp. WG4 antagonistic to Pythium myriotylum and its enhanced antifungal effect in association with Trichoderma

Cited by 32 publications

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Strain-specific variation in plant growth promoting volatile organic compounds production by five different Pseudomonas spp. as confirmed by response of Vigna radiata seedlings

Strain-specific variation in plant growth promoting volatile organic compounds production by five different Pseudomonas spp. as confirmed by response of Vigna radiata seedlings

Alcaligenes faecalisassociated with Mimosa calodendron rizhosphere assist plant survival in arsenic rich soils

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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