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Bacillus amyloliquefaciens

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https://www.readbyqxmd.com/read/27918491/clarification-of-the-antagonistic-effect-of-the-lipopeptides-produced-by-bacillus-amyloliquefaciens-bpd1-against-pyricularia-oryzae-via-in-situ-maldi-tof-ims-analysis
#1
Jen-Hung Liao, Pi-Yu Chen, Yu-Liang Yang, Shu-Chen Kan, Feng-Chia Hsieh, Yung-Chang Liu
This study tried to clarify the antagonistic effect of the lipopeptides secreted by Bacillus amyloliquefaciens strain BPD1 (Ba-BPD1) against Pyricularia oryzae Cavara (PO). To determine the major antifungal lipopeptides effective against PO, single and dual cultures were carried out in solid-state media. The matrix-assisted laser desorption/ionization-time of flight imaging mass spectrometry (MALDI-TOF IMS) was used to identify the most effective lipopeptide in situ. Meanwhile, the morphology of pathogen fungi treated with lipopeptides was observed via the SEM...
December 3, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27912317/production-of-bacillus-amyloliquefaciens-og-and-its-metabolites-in-renewable-media-valorisation-for-biodiesel-production-and-p-xylene-decontamination
#2
Augusto Etchegaray, François Coutte, Gabrielle Chataigné, Max Béchet, Ramon H Z Dos Santos, Valérie Leclère, Philippe Jacques
Biosurfactants are important in many areas; however, costs impede large-scale production. This work aimed to develop a global sustainable strategy for the production of biosurfactants by a novel strain of Bacillus amyloliquefaciens. Initially, Bacillus sp. strain 0G was renamed B. amyloliquefaciens subsp. plantarum (syn. Bacillus velezensis) after analysis of the gyrA and gyrB DNA sequences. Growth in modified Landy's medium produced 3 main recoverable metabolites: surfactin, fengycin, and acetoin, which promote plant growth...
September 2, 2016: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/27863465/bacillus-species-bt42-isolated-from-coffea-arabica-l-rhizosphere-antagonizes-colletotrichum-gloeosporioides-and-fusarium-oxysporum-and-also-exhibits-multiple-plant-growth-promoting-activity
#3
Tekalign Kejela, Vasudev R Thakkar, Parth Thakor
BACKGROUND: Colletotrichum and Fusarium species are among pathogenic fungi widely affecting Coffea arabica L., resulting in major yield loss. In the present study, we aimed to isolate bacteria from root rhizosphere of the same plant that is capable of antagonizing Colletotrichum gloeosporioides and Fusarium oxysporum as well as promotes plant growth. RESULTS: A total of 42 Bacillus species were isolated, one of the isolates named BT42 showed maximum radial mycelial growth inhibition against Colletotrichum gloeosporioides (78%) and Fusarium oxysporum (86%)...
November 18, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27855517/synthesis-and-characterization-of-silver-nanoparticles-using-bacillus-amyloliquefaciens-and-bacillus-subtilis-to-control-filarial-vector-culex-pipiens-pallens-and-its-antimicrobial-activity
#4
Hatem Fouad, Li Hongjie, Ding Yanmei, Yu Baoting, Ahmed El-Shakh, Ghulam Abbas, Mo Jianchu
Culex pipiens pallens are the most common mosquito's vector in Asia. In order to protect the people from diseases, the anti-mosquito population is necessary that uses safe and new bio-pesticides such as bacteria-AgNPs. In our report, we used two kinds of bacteria to synthesize silver nanoparticles to examine the toxic effect on the larvae and pupae of Cx. pipiens pallens and also used as antimicrobial activity. The biosynthesis of AgNPs and its characterization was carried out by UV-Vis spectrophotometry, FTIR, TEM, SEM, and EDX...
November 18, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27842869/isolation-and-biochemical-characterisation-of-a-bacteriocin-like-substance-produced-by-bacillus-amyloliquefaciens-an6
#5
Hanen Ben Ayed, Hana Maalej, Noomen Hmidet, Moncef Nasri
This study focuses on the isolation and characterisation of a peptide with bacteriocin-like properties from Bacillus amyloliquefaciens An6. Incubation conditions were optimised, and the effects of the incubation period and of carbon and nitrogen sources were investigated. The produced bacteriocin was partially purified with ammonium sulphate precipitation, dialysis and ultrafiltration and was then biochemically characterised. Maximum bacteriocin production was achieved after 48h of incubation in a culture medium containing 20g/L starch and 10g/L yeast extract, with an initial pH 8...
December 2015: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/27836719/effects-of-the-dietary-supplementation-of-mixed-probiotic-spores-of-bacillus-amyloliquefaciens-54a-and-bacillus-pumilus-47b-on-growth-innate-immunity-and-stress-responses-of-striped-catfish-pangasianodon-hypophthalmus
#6
Ho Thi Truong Thy, Nguyen Nhu Tri, Ong Moc Quy, Korntip Kannika, Sasimanas Unajak, Nontawith Areechon
The study used the mixed probiotics of Bacillus amyloliquefaciens 54A and B. pumilus 47B isolated from striped catfish (Pangasianodon hypophthalmus) intestine aiming to stimulate growth performance, innate immunity, stress tolerance of striped catfish. The average weight gain (AWG), specific growth rate (SGR), and feed conversion ratio (FCR) were analyzed after fish were fed the mixture of probiotics (B. amyloliquefaciens 54A and B. pumilus 47B) at concentrations of 1 × 10(8), 3 × 10(8), and 5 × 10(8) CFU g(-1) feed for 90 days...
November 8, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27826807/use-of-bacillus-amyloliquefaciens-hz-12-for-high-level-production-of-the-blood-glucose-lowering-compound-1-deoxynojirimycin-dnj-and-nutraceutical-enriched-soybeans-via-fermentation
#7
Dongbo Cai, Mengjie Liu, Xuetuan Wei, Xinmiao Li, Qin Wang, Christopher T Nomura, Shouwen Chen
1-Deoxynojirimycin (DNJ) is an efficient α-glucosidase inhibitor (α-GI) with potential applications in the prevention and treatment of diabetes. In this study, 16 Bacillus strains were screened for α-GI rate, and the strain HZ-12 with the highest α-GI rate was identified as Bacillus amyloliquefaciens through the analysis of physiological biochemical characteristics and 16S rDNA sequence. By LC-MS/Q-TOF analysis, the α-GI component produced by B. amyloliquefaciens HZ-12 was identified as DNJ. Soybean was used as the substrate for the solid-state fermentation; 870 mg/kg DNJ was produced by B...
October 24, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27812526/evaluation-and-selection-of-bacillus-species-based-on-enzyme-production-antimicrobial-activity-and-biofilm-synthesis-as-direct-fed-microbial-candidates-for-poultry
#8
Juan D Latorre, Xochitl Hernandez-Velasco, Ross E Wolfenden, Jose L Vicente, Amanda D Wolfenden, Anita Menconi, Lisa R Bielke, Billy M Hargis, Guillermo Tellez
Social concern about misuse of antibiotics as growth promoters (AGP) and generation of multidrug-resistant bacteria have restricted the dietary inclusion of antibiotics in livestock feed in several countries. Direct-fed microbials (DFM) are one of the multiple alternatives commonly evaluated as substitutes of AGP. Sporeformer bacteria from the genus Bacillus have been extensively investigated because of their extraordinary properties to form highly resistant endospores, produce antimicrobial compounds, and synthesize different exogenous enzymes...
2016: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/27797724/new-sigd-regulated-genes-identified-in-the-rhizobacterium-bacillus-amyloliquefaciens-fzb42
#9
Ben Fan, Yu-Long Li, Aruljothi Mariappan, Anke Becker, Xiao-Qin Wu, Rainer Borriss
The alternative sigma factor D is known to be involved in at least three biological processes in Bacilli: flagellin synthesis, methyl-accepting chemotaxis, and autolysin synthesis. Although many Bacillus genes have been identified as SigD regulon, the list may be not completed. With a microarray-based systemic screening, we found a set of genes down-regulated in the sigD knock-out mutant of the plant growth promoting rhizobacterium B. amyloliquefaciens subsp. plantarum FZB42. Eight genes (appA, blsA, dhaS, spoVG, yqgA, RBAM_004640, RBAM_018080, and ytk) were further confirmed by quantitative PCR and/or Northern blot to be controlled by SigD at the transcriptional level...
October 26, 2016: Biology Open
https://www.readbyqxmd.com/read/27787755/antimicrobial-peptide-isolated-from-bacillus-amyloliquefaciens-k14-revitalizes-its-use-in-combinatorial-drug-therapy
#10
Sudip Regmi, Yun Hee Choi, Yoon Seok Choi, Mi Ri Kim, Jin Cheol Yoo
The present study was performed to evaluate the antibacterial activities of an antimicrobial peptide (CSpK14) and the synergies thereof with β-lactams against vancomycin-resistant Staphylococcus aureus (VRSA) and Enterococci (VRE). Our strain was isolated from fermented food (kimchi), which is 99.79 % homologous with Bacillus amyloliquefaciens subsp. plantarum FZB42(T). CSpK14 was purified to homogeneity by diammonium sulfate precipitation, concentration, dialysis, and followed by two-stage chromatographic separation, i...
October 27, 2016: Folia Microbiologica
https://www.readbyqxmd.com/read/27780963/properties-of-a-fibrinolytic-enzyme-secreted-by-bacillus-amyloliquefaciens-rsb34-isolated-from-doenjang
#11
Zhuang Yao, Xiaoming Liu, Jae Min Shim, Kang Wook Lee, Hyun-Jin Kim, Jeong Hwan Kim
Nine bacilli with fibrinolytic activities were isolated from Doenjang, a traditional Korean fermented soy food. Among them, RSB 34 showed the strongest activity and identified as Bacillus amyloliquefaciens by 16S rRNA and recA genes sequencing. During growth on LB up to 96 h, RSB34 showed the highest fibrinolytic activity (83.23 mU/μl) at 48 h. Three bands of 23, 27, and 42 kDa in size were observed when culture supernatant was analyzed by SDS-PAGE and 27 and 42 kDa bands by fibrin zymography. A gene encoding the 27 kDa major fibrinolytic enzyme, AprE34, was cloned by PCR...
October 25, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27752498/antioxidant-and-neuroprotective-effects-of-doenjang-prepared-with-rhizopus-pichia-and-bacillus
#12
Su Jin Kang, Ji Yeon Seo, Kye Man Cho, Chang Kwon Lee, Jeong Hwan Kim, Jong-Sang Kim
A new type of doenjang was manufactured by mixing soaked soybean, koji (Rhizopus oryzae), cheonggukjang (Bacillus amyloliquefaciens MJ1-4 and B. amyloliquefaciens EMD17), and Pichia farinosa SY80 as a yeast, salt, and water, followed by fermentation with koji that was made by fermenting whole wheat with R. oryzae. The mixed culture doenjang was designed to have a more palatable flavor and stronger biological activities than the conventional product. The extract of mixed culture doenjang showed higher antioxidant activity than the commercial doenjang as evaluated by the ferric reducing antioxidant power assay although it was not significantly different from the commercial product in 2,2-diphenyl-1-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical scavenging activities...
September 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/27747356/biological-activities-of-peptide-concentrates-obtained-from-hydrolysed-eggshell-membrane-byproduct-by-optimisation-with-response-surface-methodology
#13
Ana Santana, Armindo Melo, Tânia Tavares, Isabel M P L V O Ferreira
The increase of hen egg consumption demands profitable applications for eggshells, including their membranes, in order to minimize environmental and public health problems that could result from their accumulation. This work presents an innovative application for eggshell membranes to obtain an added-value food ingredient that combines maximized ACE-inhibitory and antioxidant activities. Firstly, the use of acetic acid 5% (v/v); and 3-mercaptopropionic acid 1.25 M enabled 63% recovery of eggshell membrane proteins...
October 17, 2016: Food & Function
https://www.readbyqxmd.com/read/27730334/phes-an-effective-host-genotype-independent-counter-selectable-marker-for-marker-free-chromosome-deletion-in-bacillus-amyloliquefaciens
#14
Chaoyang Zhou, Lingling Shi, Bin Ye, Haichao Feng, Ji Zhang, Ruifu Zhang, Xin Yan
Aside from applications in the production of commercial enzymes and metabolites, Bacillus amyloliquefaciens is also an important group of plant growth-promoting rhizobacteria that supports plant growth and suppresses phytopathogens. A host-genotype-independent counter-selectable marker would enable rapid genetic manipulation and metabolic engineering, accelerating the study of B. amyloliquefaciens and its development as both a microbial cell factory and plant growth-promoting rhizobacteria. Here, a host-genotype-independent counter-selectable marker pheS (*) was constructed through a point mutation of the gene pheS, which encodes the α-subunit of phenylalanyl-tRNA synthetase in Bacillus subtilis strain 168...
October 11, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27727491/biological-characteristics-of-bacillus-amyloliquefaciens-ak-0-and-suppression-of-ginseng-root-rot-caused-by-cylindrocarpon-destructans
#15
Young Soo Kim, Kotnala Balaraju, Yongho Jeon
AIMS: The effect of Bacillus amyloliquefaciens AK-0 (AK-0) on ginseng root-rot disease caused by Cylindrocarpon destructans was investigated. METHODS AND RESULTS: From 190 ginseng rhizoshpere bacteria, AK-0 was selected for further analysis; its morphological characteristics were investigated by microscopy. AK-0 was identified as B. amyloliquefaciens using the Biolog system, 16S rRNA gene sequence analysis, and examination of morphological and biochemical characteristics...
October 11, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27723315/improved-growth-and-metabolites-accumulation-in-codonopsis-pilosula-franch-nannf-by-inoculation-of-bacillus-amyloliquefaciens-gb03
#16
Qi Zhao, Yong-Na Wu, Qin Fan, Qing-Qing Han, Paul W Pare, Rui- Xu, Yin-Quan Wang, Suo-Min Wang, Jin-Lin Zhang
Codonopsis pilosula (Franch.) Nannf. is a traditional Chinese herbal medicinal plant and a low-cost succedaneum for Panax ginseng and contains all various of bioactivity components. In this work, we firstly evaluated the effects of the inoculation of the plant growth-promoting rhizobacteria Bacillus amyloliquefaciens strain GB03 on growth and metabolites accumulation of C. pilosula. The results demonstrated that application of B. amyloliquefaciens GB03 significantly improved the growth of C. pilosula compared to DH5α, LB medium and water treatment, respectively...
October 10, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27722375/activity-stability-and-3-d-structure-of-the-cu-ii-form-of-a-chitin-active-lytic-polysaccharide-monooxygenase-from-bacillus-amyloliquefaciens
#17
Rebecca C Gregory, Glyn R Hemsworth, Johan P Turkenburg, Samuel J Hart, Paul H Walton, Gideon J Davies
The enzymatic deconstruction of recalcitrant polysaccharide biomass is central to the conversion of these substrates for societal benefit, such as in biofuels. Traditional models for enzyme-catalysed polysaccharide degradation involved the synergistic action of endo-, exo- and processive glycoside hydrolases working in concert to hydrolyse the substrate. More recently this model has been succeeded by one featuring a newly discovered class of mononuclear copper enzymes: lytic polysaccharide monooxygenases (LPMOs; classified as Auxiliary Activity (AA) enzymes in the CAZy classification)...
September 29, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27719931/antibacterial-polyketides-from-bacillus-amyloliquefaciens-associated-with-edible-red-seaweed-laurenciae-papillosa
#18
Kajal Chakraborty, Bini Thilakan, Vamshi Krishna Raola, Minju Joy
Heterotrophic Bacillus amyloliquefaciens associated with edible red seaweed, Laurenciae papillosa was used to isolate antibacterial polyketide compounds. Antibacterial activity studies integrated with the outcome obtained by polyketide synthetase (pks) coding genes established that seaweed-affiliated bacterial flora had a wide-ranging antibacterial activities and potential natural product diversity, which proved that the bacterium is valuable reservoir of novel bioactive metabolites. Bioactivity-guided isolation of 3-(octahydro-9-isopropyl-2H-benzo[h]chromen-4-yl)-2-methylpropyl benzoate and methyl 8-(2-(benzoyloxy)-ethyl)-hexahydro-4-((E)-pent-2-enyl)-2H-chromene-6-carboxylate of polyketide origin, with activity against human opportunistic food pathogenic microbes, have been isolated from the ethyl acetate extract of B...
March 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27708652/melatonin-producing-endophytic-bacteria-from-grapevine-roots-promote-the-abiotic-stress-induced-production-of-endogenous-melatonin-in-their-hosts
#19
Jian Jiao, Yaner Ma, Sha Chen, Chonghuai Liu, Yuyang Song, Yi Qin, Chunlong Yuan, Yanlin Liu
Endophytes form symbiotic relationships with plants and constitute an important source of phytohormones and bioactive secondary metabolites for their hosts. To date, most studies of endophytes have focused on the influence of these microorganisms on plant growth and physiology and their role in plant defenses against biotic and abiotic stressors; however, to the best of our knowledge, the ability of endophytes to produce melatonin has not been reported. In the present study, we isolated and identified root-dwelling bacteria from three grapevine varieties and found that, when cultured under laboratory conditions, some of the bacteria strains secreted melatonin and tryptophan-ethyl ester...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27688836/whole-genome-shotgun-sequence-of-bacillus-amyloliquefaciens-tf28-a-biocontrol-entophytic-bacterium
#20
Shumei Zhang, Wei Jiang, Jing Li, Liqiang Meng, Xu Cao, Jihua Hu, Yushuai Liu, Jingyu Chen, Changqing Sha
Bacillus amyloliquefaciens TF28 is a biocontrol endophytic bacterium that is capable of inhibition of a broad range of plant pathogenic fungi. The strain has the potential to be developed into a biocontrol agent for use in agriculture. Here we report the whole-genome shotgun sequence of the strain. The genome size of B. amyloliquefaciens TF28 is 3,987,635 bp which consists of 3754 protein-coding genes, 65 tandem repeat sequences, 47 minisatellite DNA, 2 microsatellite DNA, 63 tRNA, 7rRNA, 6 sRNA, 3 prophage and CRISPR domains...
2016: Standards in Genomic Sciences
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