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Bacillus thuringiensis isolated
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In Turkey, Tinocallis (Sappocallis) saltans (Nevsky) on Ulmus glabra Hudson was detected for the first time, and it was determined that it caused a considerable amount of damage. The study was conducted for the purpose of determining the usability of enthomopathogens in the control against it, while avoiding the negative effects of chemicals on the environment and human health. A total of 12 bacteria strains were tested for control efficacy and verified: Brevibacillus brevis (2), Bacillus thuringiensis (1), Bacillus thuringiensis subsp. kenyae(2), Bacillus thuringiensis subsp.
9p
hanthienngao
30-11-2021
9
1
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Amylase producing thermophilic bacterial strain was isolated from Jeori hot water spring, Rampur Bushahr of Shimla district of Himachal Pradesh, India and identified as Bacillus thuringiensis J2 using 16S rRNA gene sequencing and deposited in NCBI gene bank vide accession number |KY990713|. Medium components and process parameters were optimized with respect to substrate concentration, carbon sources, nitrogen sources, incubation period, pH and temperature for an enhanced amylase production.
10p
angicungduoc8
07-11-2020
31
2
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Bacillus thuringiensis produces different insecticidal crystal proteins which are encoded by cry genes. Isolation was carried out from 17 diverse locations’ soil; nine bacterial isolates were separated and selected on the basis of presence of parasporal body. Isolate ABt 10 was screened for different cry genes with universal and gene specific primers.
7p
chauchaungayxua8
03-10-2020
9
3
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A total of twenty-eight native Bacillus thuringiensis strains were evaluated against neonate larvae of Helicoverpa armigera and found that three strains were effective with more than 80 % cumulative mortality, followed by seven strains with 51-75 and nine strains with more than 40% cumulative mortality at 7 days after treatment. Cumulative mortality of 83.3% was recorded in strain IBS1 which was statistically on par with each other and standard check Bt. kurstaki (HD-1) and also superior over other treatments.
7p
trinhthamhodang1215
23-09-2020
5
1
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The present investigation was undertaken for the isolation and characterization of B. thuringiensis strains from different habitats based on the morphology, staining properties and biochemical characters. Fifty four samples including soil samples (30), phylloplane (21), insect cadaver (2) and stored grain dusts (1) were collected from cultivated and barren lands not having Bt history.
9p
nguaconbaynhay6
23-06-2020
10
2
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Microbial keratinases have become biotechnologically important since they target the hydrolysis of highly rigid, strongly cross-linked structural polypeptide “keratin” recalcitrant to the commonly known proteolytic enzymes. Soil samples collected from different poultry shops were enriched for keratinase producers on Whole feather agar containing whole feathers as a sole Carbon and Nitrogen source. Among 11 bacterial isolates, 6 isolates showed protease activity.
31p
nguathienthan4
18-04-2020
15
1
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The present investigation was carried out with an aim to isolate and characterize native Bacillus thuringiensis from Anand district of Middle Gujarat. Total 67 probable B. thuringiensis were isolated from 17 diverse soil samples, out of which 9 isolates were selected based on presence of parasporal crystal body and primary toxicity test. Selected nine native isolates were characterized based on their morpho-cultural and biochemical characteristics.
10p
quenchua4
16-04-2020
8
1
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Cry protein profiling of Bacillus thuringiensis isolated from different agro-climate soils of Punjab
Insect pests caused the yield loss in agricultural crops and forestry plants world widely. Commercial biopesticides based on Bacillus thuringiensis (Bt) have been used for pest management. The most important factor that makes Bt as commercial biopesticides is its remarkable ability to produce large quantities of larvicidal proteins (known as Cry protein or delta-endotoxin) that form crystalline inclusion bodies during sporulation.
5p
trinhthamhodang1212
06-04-2020
5
1
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Antibacterial activity of six different species of fungal extracts viz., Aspergillus ochraceous, Paecilomyces variotii, Schizophyllum sp., Epicoccum sp., Metarhizium sp., Aspergillus niger were evaluated against ten serotypes of Bacillus thuringiensis to develop new bioactive secondary metabolites from the microbial sources. Fungal crude extracts were isolated by ethyl acetate solvent extraction method and product yields varied from 0.150g to 0.538g. Thin Layer Chromatography was carried out for detecting the small molecule compounds present in the crude extracts.
8p
chauchaungayxua4
18-03-2020
14
2
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This work was aimed at isolating AHL degrading bacteria from fish culture pond soil, with abilities appropriate for use as probiotic in aquaculture. The presence of an autoinducer inactivation (aiiA) homologue gene and AHL-inactivation assay showed that BacillusthuringiensisQQ17, which was one among the 20 isolates, could rapidly degrade synthetic C6-HSL in vitro and hampered violacein production by Chromobacterium violaceum.
16p
nguathienthan2
19-12-2019
6
0
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Efficiencies of local bacterial isolates in malathion degradation were investigated. Five bacterial isolates obtained from agricultural waste water were selected due to their ability to grow in minimal salt media, supplied with 250 ppm malathion as sole source of carbon and phosphorus. The purified bacterial isolates (MOS-1, MOS-2, MOS-3, MOS-4 and MOS-5) were characterised and identified using a combination of cellular profile (SDS-PAGE), genetic make up profile (RAPD-PCR), and morphological and biochemical characteristics.
5p
kethamoi1
20-11-2019
12
0
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Forty strains were isolated from six different soil samples. The soil samples were taken from the grasslands of Elmada¤, Çubuk, Gölbafli, Haymana, Polatl› and Kazan near Ankara. As a result of the identification tests, 30 strains were identified as Bacillus subtilis, Bacillus megaterium, Bacillus firmus, Bacillus sphaericus, Bacillus thuringiensis, Bacillus pumilus and other Bacillus spp.
8p
caplock2711
19-02-2019
30
1
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A gram-positive bacterium that accumulated PHB was isolated from local garden soil in Bangalore. Based on its morphological and physiological properties, and nucleotide sequence (about 1.5 kb) of its 16S rDNA it was identified as Bacillus thuringiensis IAM 12077.
6p
vivant2711
15-02-2019
15
1
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Gypsy moth, Lymantria dispar L. (Lepidoptera: Lymantriidae), is one of the most serious pests affecting fruit, forest, industrial, and foliage plants worldwide. The aim of this study was to isolate and characterize pathogenic bacteria from this pest and determine their pathogenicity.
10p
vivant2711
01-02-2019
27
2
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In our previous study, several Bacillus thuringiensis (Bt) strains were isolated from bryophyte samples, indicating that bryophytes could serve as Bt reservoirs in the wild. SFR13 is a wild strain isolated from the bryophyta Physcomitrium japonicum.
8p
nutifooddau
27-01-2019
10
1
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Sixty Bacillus spp. isolates were obtained from different agricultural fields in Kayseri province using selective media. Total DNA was isolated and analyzed by PCR using cry1 general primers. Of the 60 tested isolates, 17 carried the cry1 gene. B. thuringiensis subsp. kurstaki and all other isolates exhibited approximately 19-kb plasmid bands.
10p
masterbarista
15-01-2019
21
2
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The larvicidal and hydrolytic activities of tested Bt isolates demonstrated that a forest environment can be categorized as a rich source for Bt isolates that can be used in biological control and plant residue biodegradation. As a result, it is expected that Bt recovered from forests can be used to increase soil fertility and to enhance plant growth as well as productivity.
7p
vimb123
11-01-2019
38
2
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Pine processionary moth, Thaumetopoea wilkinsoni Tams, is an important defoliating lepidopteran pest of pine trees. The aim of this study was to determine the required spore–crystal concentration of local Bacillus thuringiensis (Bt) isolates, optimal ambient temperature, and larval stage to control this troublesome forest pest.
10p
vimb123
11-01-2019
13
1
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Bacillus thuringiensis has a significant impact on biological pest control because of the insecticidal activity through its parasporal inclusion bodies (crystal proteins). Fig is an economically important plant in Turkey, agricultural pests result in a considerable economic loss in fig quality and cultivation.
10p
vimb123
11-01-2019
25
1
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This study constitutes the first isolation and characterization of local B. thuringiensis isolates in Syria. Some of these isolates exhibit toxic potential, therefore could be adopted for future applications to control some important insect pests.
11p
vimb123
12-01-2019
44
2
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