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Academic literature on the topic 'BREVIBACILLUS BREVGIS GROWTH'

Author: Grafiati
Published: 11 September 2023

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Journal articles on the topic "BREVIBACILLUS BREVGIS GROWTH"

1

Lakhdar, Mebarki, Dakhali Abir, and Mezouri Fatna. "Plant growth-promoting endophytic bacteria isolated from Launaea arborescens (characterization and molecular identification)." Journal of Agriculture and Applied Biology 4, no. 1 (April 25, 2023): 71–82. http://dx.doi.org/10.11594/jaab.04.01.08.

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The present investigation aimed to assess endophytic bacteria's capacity to stimulate plant development. Eight endophytic bacterial strains were isolated from the root of Launaea arborescens (Batt.), native medicinal plant growing spontaneously in the region of Bechar (south-west Algeria). The eight strains were tested for their effects on seed germination and plant growth of Triticum aestivum L. The results showed that all strains had positive effects on wheat seeds germination. The seeds inoculation of wheat by endophytic bacteria improves morphological parameters of the seedling (fresh and dry weight of plant, root and stem elongation). 16S rRNA gene sequencing was used to identify the powerful strain, it was found as Brevibacillus brevis. This one was found positive for many of the plant growth promoting attributes like ammonia production and azote fixing. In addition, it was identified as resistant to azithromycine during antibiotic sensitivity test and It could tolerate up to 0.9 M of NaCl. Additionally, Brevibacillus brevis was identified as resistant in the herbicide and the insecticide susceptibility test. Results suggest that this endophyte is a strong candidate for use as plant growth-promoting inoculants, to assist in lowering the amount of chemicals used in agricultural practices and enhance nutrient absorption and stress resistance in plant species.
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Wani, Parvaze, Akinware Olamide, Idris Wasiu, Nusrat Rafi, and Shazia Wahid. "Effect of Brevibacillus brevis OZF6 on Reduction of Chromium (VI) and Pea Growth." Advances in Research 9, no. 3 (January 10, 2017): 1–10. http://dx.doi.org/10.9734/air/2017/31986.

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3

Prasad, P., Tanuja Singh, and S. Bedi. "Polyphasic Characterization of a Potential Novel Cellulolytic Bacterium Brevibacillus Brevis Strain St-2." JOURNAL OF ADVANCES IN BIOTECHNOLOGY 4, no. 1 (January 30, 2014): 319–26. http://dx.doi.org/10.24297/jbt.v4i1.5005.

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The tremendous commercial potential of cellulases in a variety of applications remains the driving force for research in this area. The present study was aimed at isolation and screening of promising cellulolytic strains from locally collected soil samples. A promising cellulose degrading bacterial strain designated as St-2 was isolated from agricultural field. Optimization of fermentation media ingredients and environmental factors were done for optimizing growth of the      strain which facilitates effective cellulase production. St-2 showed luxuriant growth on sucrose, lactose, mannitol and inositol whereas the growth was moderate on dextrose and fructose. The strain was able to grow in a wide range of pH (5-11) and temperature (4-45 ˚C) and was tolerant to up to 6% (w/v) of NaCl concentration in the medium. The results indicate wide spectrum adaptability of the strain to variable pH, temperatures and saline concentrations that makes it an advantageous organism to survive in the fluctuating environmental conditions. The optimum pH and temperature for enzyme production were 7 (with 2.11 U/ml CMCase activities and 2.22 U/ml FPase activities) and 37˚C (with 1.73 U/ml CMCase activities and 1.92 U/ml FPase activities), respectively. The morphological and biochemical characteristics of the strain were consistent with those of the genus Brevibacillus. Analysis of the 16S rRNA gene sequence of strain St-2 showed a similarity score of 99% with Brevibacillusbrevis(GeneBank Accession No. AB271756) having BLAST score ranging between 821 to 827 bits.
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Duraisamy, Senbagam, Fazal Husain, Senthilkumar Balakrishnan, Aswathy Sathyan, Prabhu Subramani, Prahalathan Chidambaram, Selvaraj Arokiyaraj, Wahidah H. Al-Qahtani, Jothiramalingam Rajabathar, and Anbarasu Kumarasamy. "Phenotypic Assessment of Probiotic and Bacteriocinogenic Efficacy of Indigenous LAB Strains from Human Breast Milk." Current Issues in Molecular Biology 44, no. 2 (February 1, 2022): 731–49. http://dx.doi.org/10.3390/cimb44020051.

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Breast milk is the combination of bioactive compounds and microflora that promote newborn’s proper growth, gut flora, and immunity. Thus, it is always considered the perfect food for newborns. Amongst their bioactives, probiotic communities—especially lactic acid bacteria (LAB)—are characterized from breast milk over the first month of parturition. In this study, seven LAB were characterized phenotypically and genotypically as Levilactobacillus brevis BDUMBT08 (MT673657), L. gastricus BDUMBT09 (MT774596), L. paracasei BDUMBT10 (MT775430), L. brevis BDUMBT11 (MW785062), L. casei BDUMBT12 (MW785063), L. casei BDUMBT13 (MW785178), and Brevibacillus brevis M2403 (MK371781) from human breast milk. Their tolerance to lysozyme, acid, bile, gastric juice, pancreatic juice, and NaCl and potential for mucoadhesion, auto-aggregation, and co-aggregation with pathogens are of great prominence in forecasting their gut colonizing ability. They proved their safety aspects as they were negative for virulence determinants such as hemolysis and biofilm production. Antibiogram of LAB showed their sensitivity to more than 90% of the antibiotics tested. Amongst seven LAB, three isolates (L. brevis BDUMBT08 and BDUMBT11, and L. gatricus BDUMBT09) proved their bacteriocin producing propensity. Although the seven LAB isolates differed in their behavior, their substantial probiotic properties with safety could be taken as promising probiotics for further studies to prove their in vivo effects, such as health benefits, in humans.
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Simarmata, Rumella, Tiwit Widowati, Tirta Kumala Dewi, Sylvia J. R. Lekatompessy, and Sarjiya Antonius. "Isolation, Screening and Identification of Plant Growth-Promoting Endophytic Bacteria from Theobroma cacao." Biosaintifika: Journal of Biology & Biology Education 12, no. 2 (August 1, 2020): 155–62. http://dx.doi.org/10.15294/biosaintifika.v12i2.21280.

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Cacao (Theobrama cacao) is one of the main plantation commodities in Indonesia which has an important role for the national economy. The low productivity of cacao plants in Indonesia is due to the condition of old plants, pests and diseases attacks which affect the quality of the fruit and decrease the plant’s productivity. The objective of this study was to isolate and identify of endophytic bacteria from stem, flower, leaf and fruit of T. cacao by using 16S rRNA gene as genetic marker. Twenty seven endophytic bacterial isolates were collected from local plantation in Yogyakarta area. From this study, 8 endophytic bacterial strains exhibited the higher PGP traits. The isolates produced Indole Acetic Acid level by 0.3 to 5.21 ppm/hour. All of isolates had nitrogen fixation activity but have not phosphate solubilization activity. Among them, isolates CSDT 4 and CGKBH 4 showed promising potential as PGP bacteria. Based on the 16S rRNA gene sequences, those bacterial strains were identified as Brevibacillus brevis (CSDT 4) and Pantoea sp. (CGKBH 4). We propose that the B. brevis and Pantoea sp. which is reported for the first time for their PGP potential in cacao, exerts its beneficial effects on cacao crop through combined of activities. The potential PGP bacteria from the Cacao plant was used to make a specific bio-fertilizer formula for the Cacao plant, because of the different needs and condition that every plant requires.
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Zhao, Zhenjun, Lingling Zhang, Yougen Lou, Yan Luo, Xianchun Hu, Xueli Pan, Huawei Wu, Jianjie Li, Huiling Mei, and Xinghui Li. "Inhibitory Effect of Polypeptides Produced by Brevibacillus brevis on Ochratoxigenic Fungi in the Process of Pile-Fermentation of Post-Fermented Tea." Foods 11, no. 20 (October 17, 2022): 3243. http://dx.doi.org/10.3390/foods11203243.

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Contamination by ochratoxigenic fungi and its prevention during the pile-fermentation of post-fermented tea have always been a concern. The present study aimed to elucidate the anti-fungal effect and mechanism of polypeptides produced by B. brevis DTM05 (isolated from post-fermented tea) on ochratoxigenic fungi, and to to evaluate their use in the pile-fermentation process of post-fermented tea. The results showed that polypeptides (produced by B. brevis DTM05) with a strong antifungal effect against A. carbonarius H9 mainly had a molecular weight between 3 and 5 kDa. The Fourier-transform infrared spectra of this polypeptide extract showed that it was a mixture consisting mainly of polypeptides and small amounts of lipids and other carbohydrates. The polypeptide extracts significantly inhibited the growth of A. carbonarius H9, and its minimum inhibitory concentration (MIC) was 1.6 mg/L, which significantly reduced the survival rate of spores. The polypeptides also effectively controlled the occurrence and ochratoxin A (OTA) production of A. carbonarius H9 on the tea matrix. The lowest concentration of polypeptides that significantly inhibited the growth of A. carbonarius H9 on the tea matrix was 3.2 mg/L. The enhancement of the fluorescence staining signal in the mycelium and conidiospore showed that the polypeptides with a concentration of more than 1.6 mg/L increased the permeability of the mycelium membrane and conidial membrane of A. carbonarius H9. The significant increase in the extracellular conductivity of mycelia suggested the outward leakage of intracellular active substances, and also further indicated an increase in cell membrane permeability. Polypeptides with a concentration of 6.4 mg/L significantly down-regulated the expression level of the polyketide synthase gene related to OTA production (acpks) in A. carbonarius H9, which may be the fundamental reason why polypeptides affect OTA production. In conclusion, reasonable use of the polypeptides produced by B. brevis can destroy the structural integrity of the cell membrane, make the intracellular active substances leak outward, accelerate the death of fungal cells and down-regulate the expression level of the polyketide synthase gene in A. carbonarius; thus, they can effectively control the contamination of ochratoxigenic fungi and OTA production during the pile-fermentation of the post-fermented tea.
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Sondang, Y., R. Siregar, and K. Anty. "Identification of endophytic and rhizosphere bacteria in rice (Oryza sativa L.) in the experimental field at Payakumbuh State Agriculture Polytechnic, West Sumatra, Indonesia." IOP Conference Series: Earth and Environmental Science 883, no. 1 (October 1, 2021): 012085. http://dx.doi.org/10.1088/1755-1315/883/1/012085.

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Abstract The decrease of soil fertility and fewer soil microorganisms will lower crop production, particularly rice, thus threatening the national food security program. This study is (a) to isolate and identify the bacteria in the endophytic and rhizosphere of rice plants (b) to study the bacteria from the endophytic and rhizosphere of rice plants which potentially stimulate plant growth. The experiment was carried out at the Laboratory of Food Crop Cultivation at Payakumbuh State Agriculture Polytechnic, Limapuluh Kota Regency, West Sumatra for four months. The sampling method was carried out by random sampling at rice planting in the Payakumbuh State Agriculture Polytechnic Experimental Field. Endophytic bacteria were taken from the root tissue of rice plants, and rhizosphere bacteria were taken from a layer of soil around rice roots. Isolation of bacteria was carried out by using the pour plate and scratchplate methods. Four bacteria were identified using the 16S rRNA sequencing method. The identification results showed that in the rice root tissue found the bacteria Chromobacterium rhizoryzae and Brevibacillus brevis. In the rice rhizosphere, Bacillus pseudomycoides and Bacillus thuringiensis are found. Bacteria are dominated by the Bacillus genera which can stimulate plant growth.
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Mojgani, Naheed, Niloofar Razmgah, Mohammad Amir Karimi Torshizi, and Mohammad Reza Sanjabi. "Effects of three Bacillus specious on hatchability, growth performance and serum biochemistry in Japanese quails fed diet contaminated with Aflatoxin B1." Acta Scientiarum. Animal Sciences 42 (June 8, 2020): e50184. http://dx.doi.org/10.4025/actascianimsci.v42i1.50184.

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In total, 240 one-day–old Japanese quails (Coturnix Coturnix Japonica) allocated at random to 6 treatments with 4 replicates and 10 birds in each. Treatments used were: 1) Negative control (without any additives or AFB1); 2) Positive control (basal diet + 2.5 ppm AFB1; 2); 3) TA008 (positive control + 108 cfu/ml Bacillus. megaterium TA008); 4) TA049 (positive control + 108 cfu mL-1 Bacillus. subtilis TA049); 5) TA010 (positive control+ 108 cfu mL-1 Brevibacillus brevis TA010) and 6) P (positive control + 2.5 g kg-1 Polysorb® in feed). Hatchability and embryonic mortality were significantly influenced by additives and AFB1 (p < 0.05). Birds fed TA008 improved 12 % hatchability and reduced 10 % embryonic mortality in compared to positive control (p < 0.05). Weight gain and feed conversion ratio did not affected by treatments (p > 0.05). Feed intake was significantly improved in birds feeding by TA008 at 0-21 days (p < 0.05). There were significant differences on relative weights of carcass, gizzard and proventriculus among treatments (p < 0.05). Serum total protein, albumin, cholesterol, glucose, HDL, globulin and uric acid were significantly affected by treatments (p < 0.05). These results showed that the inclusion of bacillus megaterium as potential probiotic into contaminated diets could improve the adverse effects of AFB1 in Japanese quails.
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Che, Jianmei, Shaowen Ye, Bo Liu, Yuanyuan Deng, Qianqian Chen, Cibin Ge, Guohong Liu, and Jieping Wang. "Effects of Brevibacillus brevis FJAT-1501-BPA on growth performance, faecal microflora, faecal enzyme activities and blood parameters of weaned piglets." Antonie van Leeuwenhoek 109, no. 12 (August 24, 2016): 1545–53. http://dx.doi.org/10.1007/s10482-016-0756-8.

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Fouda, Amr, Ahmed M. Eid, Albaraa Elsaied, Ehab F. El-Belely, Mohammed G. Barghoth, Ehab Azab, Adil A. Gobouri, and Saad El-Din Hassan. "Plant Growth-Promoting Endophytic Bacterial Community Inhabiting the Leaves of Pulicaria incisa (Lam.) DC Inherent to Arid Regions." Plants 10, no. 1 (January 1, 2021): 76. http://dx.doi.org/10.3390/plants10010076.

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In this study, 15 bacterial endophytes linked with the leaves of the native medicinal plant Pulicaria incisa were isolated and identified as Agrobacterium fabrum, Acinetobacter radioresistant, Brevibacillus brevis, Bacillus cereus, Bacillus subtilis, Paenibacillus barengoltzii, and Burkholderia cepacia. These isolates exhibited variant tolerances to salt stress and showed high efficacy in indole-3-acetic acid (IAA) production in the absence/presence of tryptophan. The maximum productivity of IAA was recorded for B. cereus BI-8 and B. subtilis BI-10 with values of 117 ± 6 and 108 ± 4.6 μg mL−1, respectively, in the presence of 5 mg mL−1 tryptophan after 10 days. These two isolates had a high potential in phosphate solubilization and ammonia production, and they showed enzymatic activities for amylase, protease, xylanase, cellulase, chitinase, and catalase. In vitro antagonistic investigation showed their high efficacy against the three phytopathogens Fusarium oxysporum, Alternaria alternata, and Pythium ultimum, with inhibition percentages ranging from 20% ± 0.2% to 52.6% ± 0.2% (p ≤ 0.05). Therefore, these two endophytic bacteria were used as bio-inoculants for maize seeds, and the results showed that bacterial inoculations significantly increased the root length as well as the fresh and dry weights of the roots compared to the control plants. The Zea mays plant inoculated with the two endophytic strains BI-8 and BI-10 significantly improved (p ≤ 0.05) the growth performance as well as the nutrient uptake compared with an un-inoculated plant.
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Dissertations / Theses on the topic "BREVIBACILLUS BREVGIS GROWTH"

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SHARMA, SHIVAM. "EFFECTS OF CERIUM OXIDE NANOPARTICLES ON BREVIBACILLUS BREVGIS GROWTH : A COMPREHENSIVE STUDY." Thesis, 2023. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19795.

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The impact of cerium oxide nanoparticles (CeO2 NPs) on the growth of Brevibacillus brevis, a gram- positive bacterium with potential industrial applications, was investigated. CeO2 NPs have gained significant attention due to their unique physicochemical properties and wide range of applications. However, their potential toxicity to microorganisms, including bacteria, raise concerns regarding their environmental and biological effects. In this study, B. brevis cultures were exposed to varying concentrations of CeO2 NPs, ranging from 0 to 200 ul, to assess their impact on bacterial growth. The CeO2 NPs were characterized for their size, shape, and surface charge to ensure consistent and reliable experimental conditions. The growth of B. brevis was monitored using optical density measurements and colony counting techniques.
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