scholarly journals Isolation and characterization of Bacillus thuringiensis (Ernst Berliner) strains indigenous to agricultural soils of Mali

2015 ◽  
Vol 10 (28) ◽  
pp. 2748-2755 ◽  
Author(s):  
Kassogue Adounigna ◽  
Maiga Kadia ◽  
Traore Diakaridia ◽  
Hamadoun Dicko Amadou ◽  
Fane Rokiatou ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Agricultural Soils ◽  
Isolation And Characterization

Purification and partial amino acid sequence of thuricin S, a new anti-Listeriabacteriocin from Bacillus thuringiensis

2007 ◽  
Vol 53 (2) ◽  
pp. 284-290 ◽  
Author(s):  
Sonia Chehimi ◽  
François Delalande ◽  
Sophie Sablé ◽  
Mohamed-Rabeh Hajlaoui ◽  
Alain Van Dorsselaer ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Proteinase K ◽  
Terminal Sequence ◽  
Partial Amino Acid Sequence ◽  
Ph Values ◽  
Heat Stable ◽  
Isolation And Characterization ◽  
Terminal Amino ◽  
Edman Sequencing

We report the isolation and characterization of a new bacteriocin, thuricin S, produced by the Bacillus thuringiensis subsp. entomocidus HD198 strain. This antibacterial activity is sensitive to proteinase K, is heat-stable, and is stable at a variety of pH values (3–10.5). The monoisotopic mass of thuricin S purified by high perfomance liquid chromatography, as determined with mass spectrometry ESI-TOF-MS, is 3137.61 Da. Edman sequencing and NanoESI-MS/MS experiments provided the sequence of the 18 N-terminal amino acids. Interestingly, thuricin S has the same N-terminal sequence (DWTXWSXL) as bacthuricin F4 and thuricin 17, produced by B. thuringiensis strains BUPM4 and NEB17, respectively, and could therefore be classified as a new subclass IId bacteriocin.

scholarly journals Isolation and characterization of Bacillus thuringiensis strains active against Elasmopalpus lignosellus (Zeller, 1848) (Lepidoptera, Pyralidae)

2017 ◽  
Vol 39 (4) ◽  
pp. 417
Author(s):  
Janaina Zorzetti ◽  
Ana Paula Scaramal Ricietto ◽  
Fernanda Aparecida Pires Fazion ◽  
Ana Maria Meneguim ◽  
Pedro Manuel Oliveira Janeiro Neves ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Isolation And Characterization ◽  
Elasmopalpus Lignosellus ◽  
Lepidoptera Pyralidae

scholarly journals Isolation and characterization of phosphate solubilizing bacteria from agricultural soils for a potential use in cultivating Capsicum frutescens

2020 ◽  
Vol 10 (2) ◽  
pp. 5161-5173
Keyword(s):  
Plant Growth ◽  
Agricultural Soils ◽  
Pot Experiment ◽  
Available Phosphorus ◽  
Phosphate Solubilizing Bacteria ◽  
Capsicum Frutescens ◽  
Isolation And Characterization ◽  
Insoluble Form ◽  
Phosphate Solubilizing

Phosphorus (P) is one of the essential macronutrients needed for the plant growth, other than nitrogen and potassium. Most phosphorus remains as insoluble form in soils and the plants only can uptake the phosphorus nutrient in soluble forms. Phosphate solubilizing bacteria (PSB) dissolves the phosphorus and make it available for plants. In this study, Soil samples were collected and screened for PSB on PK medium. PSB colonies with the highest phosphate solubilization ability were chosen and used for studying its rhizosphere effect on Capsicum frutescens by pot experiment.. It was evidenced that selected PSB strain could solubilize phosphate in PK medium and modified PK broth. Besides, it provided available phosphorus for plants and enhanced the plant growth in pot experiment.

scholarly journals Isolation and characterization of Bacillus thuringiensis strains from different grain habitats in Turkey

2005 ◽  
Vol 21 (3) ◽  
pp. 285-292 ◽  
Author(s):  
Özgür Apaydin ◽  
A. Fazil Yenidünya ◽  
Şebnem Harsa ◽  
Hatice Güneş
Keyword(s):  
Bacillus Thuringiensis ◽  
Isolation And Characterization

Isolation and characterization of bacterial diversity from soils supplemented with electrical transformer fluids

2011 ◽  
Vol 1 (2) ◽  
pp. 107-113
Author(s):  
Nwinyi Obinna C ◽  
Alade Adetutu ◽  
Leo‐ Akpan Imaobong R ◽  
Oladele Bolaji.O
Keyword(s):  
Optical Density ◽  
Culture Medium ◽  
Agricultural Land ◽  
Agricultural Soils ◽  
Bacterial Species ◽  
Minimal Salt Medium ◽  
Isolation And Characterization ◽  
The Mean ◽  
Biomass Increase

Repetitive enrichment of soils samples from an agricultural land and newly marked dumpsite on electrical transformer fluid yielded six bacterial species that have the capacity to utilize electrical transformer fluids (askarel) as carbon and energy source. Bacterial species namely: Micrococcus, Arthrobacter, Pseudomonas putida, Pseudomonas spp, Norcadia and Corynebacterium were identified using morphological and biochemical characteristics. The abilities of these bacterial species to utilize the electrical transformer fluids as carbon source in minimal salt medium (MSM); sub cultured in concentrations of 5, 10, 15 and 20μL of electrical transformer fluids were investigated for twenty‐one days period. Physiological changes in terms of biomass increase were monitored by measuring the pH and optical density of the culture medium. From the results obtained, there was observed a general decrease in the pH and  increase in Optical density (O.D). The mean pH and O.D. readings ranged between (4.34‐6.13 and 0.073‐0.386) respectively. The decreased pH could justify for the acidic metabolites produced in the course of utilization of askarel as growth substrates. This study suggested that, the tropical ecosystems can provide exotic bacterial species that are capable of degrading or mineralizing polychlorinated biphenyls and their derivatives from dumpsites and agricultural soils.

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