Optimization of culture conditions for phosphate solubilization by a thermo-tolerant phosphate-solubilizing bacterium Brevibacillus sp. BISR-HY65 isolated from phosphate mines

Yadav, H.; Gothwal, Raj Kumar; Nigam, Vinod Kumar; Sinharoy, Senjuti; Ghosh, Purnendu

doi:10.1016/j.bcab.2013.04.005

Cited by 36 publications

(19 citation statements)

References 27 publications

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“…3. d and e). These organic acids lower the soil pH, acts as stable metal chelating agent and helps in up taking important minerals (Barros et al 2013;Yadav et al 2013).…”

Section: Results and Discussion Isolation And Morphological Charactermentioning

confidence: 99%

Isolation and characterization of plant growth promoting endophytic bacteria isolated from Vigna radiata

Suneja

Maheshwari

Bhutani

2018

IJARe

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A total of 22 endophytic bacteria were isolated from roots and nodules of Vigna radiata (mungbean) obtained from Jind district, Haryana. These were characterized on the basis of plant growth promoting traits. Almost all the endophytic bacteria produced IAA with maximum production of 81.63µg/ml by isolate MJiR8. Among these, 100% root isolates and 84.6% nodule isolates resulted in in vitro root growth promotion of mungbean seedlings. All the isolates produced ammonia; eighteen (all root and nine nodule isolates) produced organic acid while only four root isolates were positive for siderophore production. The four isolates produced hydrogen cyanide and out of these only MJiR9 inhibited the growth of fungal pathogens Fusarium oxysporium and Aspergillus niger. All the endophytes were used to determine molecular diversity by ARDRA (Amplified Ribosomal DNA Restriction Analysis) Results revealed that the nodule isolates were more diverse, being present in separate clusters, in comparison to root isolates which were grouped together in cluster III.

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“…3. d and e). These organic acids lower the soil pH, acts as stable metal chelating agent and helps in up taking important minerals (Barros et al 2013;Yadav et al 2013).…”

Section: Results and Discussion Isolation And Morphological Charactermentioning

confidence: 99%

Isolation and characterization of plant growth promoting endophytic bacteria isolated from Vigna radiata

Suneja

Maheshwari

Bhutani

2018

IJARe

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“…Best performing PSB under pot experiment was JCA-5 that was similar to Bacillus megaterium, which has been reported as a potential phosphate solubilizer (Han et al, 2006). Another better performing isolate JGA-4 was found similar to Brevibacillus sp that is a thermo-tolerant phosphate-solubilizing bacterium (Yadav et al 2013). Interestigly, the source environment of this isolate was evidently hot and semi-arid due to its geographical situation.…”

Section: Figmentioning

confidence: 77%

Efficacies of freshly isolated phosphate solubilising bacteria (PSB) on growth promotion in groundnut (Arachis hypogaea L.) upon commonly used PSB biofertilizers in eastern India

Sengupta

Gunri

Biswas

et al. 2018

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Present study was designed to assess the prospect of fresh phosphate solubilizing bacterial isolates (PSB), to ones, used as PSB-biofertilizer in growth promotion of groundnut (Arachis hypogaea L.). Phosphate-solublizing index (PSI) of 17 isolates varied from 1.692 to 3.033, after seven days incubation. Tricalcium phosphate solubilization by PSB ranged from 309.72 to 615.28 ìg/ml and highest value was recorded for isolate JCA-5. Three most efficient fresh isolates were clustered under the genera Burkholderia, Bacillus and Brevibacillus. The supplementation of elite PSB isolates augmented growth and P-uptake irrespective of edaphic conditions for groundnut. Steady increments in root (22.6% and 25.5%) and shoot length (27.6% and 33.7%), root dry-weight (20.3% and 16.2%),shoot dry-weight (11.3% and 23.3%) and P-uptake (30% and 67%) of groundnut was evident in red-laterite soil and new alluvial soils respectively in comparison to the previously acknowledged PSB biofertilizers.

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“…Higher relative frequencies were observed for this species, and it is easily found in the B. purpurascens roots and rhizosphere. Yadav et al (2013) observed the capacity for in vitro phosphate solubilization in Brevibacillus sp. strains, which is a thermotolerant bacteria isolated from deposits in India.…”

Section: Discussionmentioning

confidence: 98%

Isolation and genetic characterization of endophytic and rhizospheric microorganisms from Butia purpurascens Glassman

Silva¹,

Senabio²,

Pinheiro³

et al. 2015

Afr. J. Microbiol. Res.

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Interactions between plants and microorganism are complex and can affect the establishment of plant communities and change ecosystem properties. These interactions are of interest for researchers and have many ecological and biotechnological applications. The present study is the first report on the microbial diversity associated with Butia purpurascens Glassman, and the goal was to isolate and identify the genetic diversity of endophytic and rhizospheric growable microorganisms from B. purpurascens using molecular biology techniques. Endophytic and rhizospheric microorganisms were isolated from the roots and rhizospheric soil of the purple yatay palm. DNA was extracted, and the 16S region for bacteria and internal transcribed spacer (ITS) region for fungi were amplified and sequenced. The resulting sequences were compared with known sequences from GenBank by similarity search using BLASTn. The rhizosphere and roots of B. purpurascens harbor a diverse set of microorganism groups. Fourteen (14) genera of endophytic and 12 genera of rhizospheric bacteria were identified that belonged to three phyla (Proteobacteria, Firmicutes and Actinobacteria), and 11 endophytic and six rhizospheric genera of fungi were identified that belonged to the phylum Ascomycota. The most frequent isolated genera were Enterobacter and Pseudomonas for endophytic bacteria, Gibberella and Codinaeopsis for endophytic fungi, Bacillus and Enterobacter for rhizospheric bacteria, and Ceratocystis for rhizospheric fungi. Differences were observed between the endophytic and rhizospheric microbial communities of B. purpurascens, with some microorganisms only detected in one environment. Further studies with a higher number of individuals are required to confirm these results.

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Optimization of culture conditions for phosphate solubilization by a thermo-tolerant phosphate-solubilizing bacterium Brevibacillus sp. BISR-HY65 isolated from phosphate mines

Cited by 36 publications

References 27 publications

Isolation and characterization of plant growth promoting endophytic bacteria isolated from Vigna radiata

Isolation and characterization of plant growth promoting endophytic bacteria isolated from Vigna radiata

Efficacies of freshly isolated phosphate solubilising bacteria (PSB) on growth promotion in groundnut (Arachis hypogaea L.) upon commonly used PSB biofertilizers in eastern India

Isolation and genetic characterization of endophytic and rhizospheric microorganisms from Butia purpurascens Glassman

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