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Cagri-Mehmetoglu A, Kusakli S, van de Venter M. Production of polysaccharide and surfactin by Bacillus subtilis ATCC 6633 using rehydrated whey powder as the fermentation medium. J Dairy Sci 2012; 95:3643-9. [PMID: 22720922 DOI: 10.3168/jds.2012-5385] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 03/04/2012] [Indexed: 11/19/2022]
Abstract
The aim of this research was to assess the amounts of polysaccharide and surfactin produced by Bacillus subtilis ATCC 6633 in rehydrated whey powder (RWP) as the growth medium. One-day-old cultures of B. subtilis (∼4.6 log cfu/mL) were inoculated into 100mL of 10, 15, or 20% (wt/vol) RWP and incubated at 30°C for 72 h. To analyze the effects of lactose and protein on polysaccharide and surfactin production, 6 RWP solutions containing different levels of lactose and protein were also used as media. The number of vegetative cells and spores, pH, viscosity, and the concentration of lactose were determined at 0, 24, 48, or 72 h of fermentation. The levels of polysaccharide and surfactin produced after 72 h of fermentation were measured using HPLC and the phenol-sulfuric acid method, respectively. During 72 h of fermentation, B. subtilis populations increased from 4.6 to 10.54, 9.82, and 9.67 log(10) cfu/mL in 10, 15, and 20% RWP, respectively. The number of B. subtilis spores in 10% RWP increased from 3.91 to 4.72 log(10) cfu/mL after 48 and 72 h of fermentation, respectively. The increased level of lactose or protein in RWP did not significantly change the vegetative growth. After 72h of fermentation, the pH of RWP decreased from 5.70 to 4.99 with a slight increase in viscosity. Polysaccharide levels in 10, 15, and 20% RWP after fermentation were 513.6, 613.5, and 768.3mg/L, respectively, with B. subtilis producing 0.18 to 0.29 g/L of surfactin after 72 h of fermentation. The polysaccharide or surfactin production was not changed significantly by addition of protein or lactose to RWP. These results indicate that RWP is a good fermentation substrate for surfactin and polysaccharide production.
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Affiliation(s)
- A Cagri-Mehmetoglu
- Department of Food Engineering, Faculty of Engineering, Sakarya University, Sakarya, Turkey 54187.
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52
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Yuan B, Wang Z, Qin S, Zhao GH, Feng YJ, Wei LH, Jiang JH. Study of the anti-sapstain fungus activity of Bacillus amyloliquefaciens CGMCC 5569 associated with Ginkgo biloba and identification of its active components. BIORESOURCE TECHNOLOGY 2012; 114:536-541. [PMID: 22520222 DOI: 10.1016/j.biortech.2012.03.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 03/17/2012] [Accepted: 03/19/2012] [Indexed: 05/31/2023]
Abstract
An endophytic bacterium, designated strain Bacillus amyloliquefaciens CGMCC 5569 was isolated from Chinese medicinal Ginkgo biloba collected from Xuzhou, China. Both the filtrate and the ethyl acetate extract of strain CGMCC 5569 showed growth inhibition activity against the sapstain fungi Lasiodiplodia rubropurpurea, L. crassispora, and L. theobromae obviously (>65%) based on the comparison of the length of zones on the petri dish. From the ethyl acetate extract of the filtrate, the antifungal compounds were obtained as a series of lipopeptides, which including series of fengycin, surfactin and bacillomycin. It showed strong growth inhibition activity in vitro against the L. rubropurpurea, L. crassispora and L. theobromae by about 70.22%, 69.53% and 78.76%, respectively. The strong anti-sapstain fungus activity indicated that the endophytic B. amyloliquefaciens CGMCC 5569 and its bioactive components might provide an alternative bio-resource for the bio-control of sapstain.
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Affiliation(s)
- Bo Yuan
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
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53
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Sayed AR. Synthesis of 1,3,4-thiadiazines, bis-1,3,4-thiadiazoles, [1,2,4]triazino[3,4-b][1,3,4]thiadiazine, thiazolines from carbonothioic dihydrazide. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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54
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Hammami I, Jaouadi B, Bacha AB, Rebai A, Bejar S, Nesme X, Rhouma A. Bacillus subtilis bacteriocin Bac 14B with a broad inhibitory spectrum: Purification, amino acid sequence analysis, and physicochemical characterization. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-010-0401-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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55
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Jung WJ, Mabood F, Souleimanov A, Smith DL. Induction of defense-related enzymes in soybean leaves by class IId bacteriocins (thuricin 17 and bacthuricin F4) purified from Bacillus strains. Microbiol Res 2011; 167:14-9. [PMID: 21501957 DOI: 10.1016/j.micres.2011.02.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 02/08/2011] [Accepted: 02/16/2011] [Indexed: 11/16/2022]
Abstract
We have recently discovered a new class of bacteriocin (class IId) which stimulates plant growth in a way similar to Nod factors. Nod factors have been shown to provoke aspects of plant disease resistance. We investigated the effects of bacteriocins [thuricin 17 (T17) and bacthuricin F4 (BF4)] on the activities of phenylalanine ammonia lyase (PAL), guaiacol peroxidase (POD), ascorbate peroxidase (APX), superoxide dismutase (SOD), and polyphenol oxidase (PPO). Bacteriocin solutions were fed into the cut stems of soybean (Glycine max L. Merr. cv. OAC Bayfield) seedlings at the first trifoliate stage. PAL activity in T17 treated leaves was the highest at 72h after treatment and was 75.5% greater than the control at that time. At 72h after treatment POD activities in T17 and BF4 treated leaves increased by 72.7 and 91.3%, respectively, as compared with the control treatment. APX activity was 52.3 and 49.6% respectively, greater than the control in T17 and BF4 treated leaves at 72h after treatment. SOD activity in T17 treated leaves was the highest at 72h after treatment and was 26.0% greater than the control at that time. SOD activity was 70.5 and 60.2% greater, respectively, than the control in T17 and BF4 treated leaves, at 72h. Using PAGE we found that one APX isozyme (28kDa isoform) showed the strongest induction in all bacteriocin treated leaves at 72h. Activity of the seven SOD isozymes was increased by both bacteriocins, relative to the control treatment. The 33kDa PPO isozyme was induced strongly by both bacteriocins, relative to the control treatment. These results indicate that class IId bacteriocins can act as an inducer of plant disease defense-related enzymes and may be acting through mechanisms similar to Nod factors.
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Affiliation(s)
- Woo-Jin Jung
- Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, Chonnam National University, Gwangju, Republic of Korea
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56
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Aly AA, El-Karim IAG. Facile Synthesis of New Pyrazolopyrimidine Derivatives of Potential Biosignificant Interest. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2011. [DOI: 10.5012/jkcs.2011.55.5.781] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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57
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Combined use of LC–ESI-MS and antifungal tests for rapid identification of bioactive lipopeptides produced by Bacillus amyloliquefaciens CCMI 1051. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.05.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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58
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Velho RV, Medina LFC, Segalin J, Brandelli A. Production of lipopeptides among Bacillus strains showing growth inhibition of phytopathogenic fungi. Folia Microbiol (Praha) 2011; 56:297-303. [DOI: 10.1007/s12223-011-0056-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Accepted: 04/28/2011] [Indexed: 11/24/2022]
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59
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Aly AA, Behalo MS. Synthesis of New Peptidyl- and Glycosylpyrimidine Derivatives. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13083314900282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new series of 2- N-(phthalyl- or tosylamino acid)pyrimidines have been synthesised from the coupling of pyrimidine derivatives with phthalyl- or tosylamino acids. Hydrazinolysis of 2- N-phthalyl derivatives afforded unprotected amino acid derivatives. New derivatives of peptidylpyrimidines have been synthesised from the reaction of pyrimidine derivatives with α-amino acids methyl ester hydrochloride viz different routes. Also, new glycosides have been prepared from the reaction of pyrimidine derivatives with α-D-glucopyranosyl bromide. Most of the synthesised compounds showed a significant antimicrobial activity.
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Affiliation(s)
- Aly A. Aly
- Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
| | - Mohamed S. Behalo
- Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
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60
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Krid S, Triki MA, Gargouri A, Rhouma A. Biocontrol of olive knot disease by Bacillus subtilis isolated from olive leaves. ANN MICROBIOL 2011. [DOI: 10.1007/s13213-011-0239-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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61
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Khalil AA. Synthesis, exchange reactions, and biological activity of poly(8-methacryloxyquinoline). J Appl Polym Sci 2011. [DOI: 10.1002/app.33624] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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62
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Benitez LB, Velho RV, Lisboa MP, da Costa Medina LF, Brandelli A. Isolation and characterization of antifungal peptides produced by Bacillus amyloliquefaciens LBM5006. J Microbiol 2011; 48:791-7. [DOI: 10.1007/s12275-010-0164-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Accepted: 08/23/2010] [Indexed: 10/18/2022]
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63
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Toledo A, Alippi A, de Remes Lenicov A. Growth inhibition of Beauveria bassiana by bacteria isolated from the cuticular surface of the corn leafhopper, Dalbulus maidis and the planthopper, Delphacodes kuscheli, two important vectors of maize pathogens. JOURNAL OF INSECT SCIENCE (ONLINE) 2011; 11:29. [PMID: 21529147 PMCID: PMC3281398 DOI: 10.1673/031.011.0129] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Accepted: 05/28/2010] [Indexed: 05/13/2023]
Abstract
The phytosanitary importance of the corn leafhopper, Dalbulus maidis (De Long and Wolcott) (Hemiptera: Cicadellidae) and the planthopper, Delphacodes kuscheli Fennah (Hemiptera: Delphacidae) lies in their ability to transmit phloem-associated plant pathogens, mainly viruses and mollicutes, and to cause considerable mechanical damage to corn plants during feeding and oviposition. Fungi, particularly some members of the Ascomycota, are likely candidates for biocontrol agents against these insect pests, but several studies revealed their failure to invade the insect cuticle possibly because of the presence of inhibitory compounds such as phenols, quinones, and lipids and also by the antibiosis effect of the microbiota living on the cuticular surface of the host. The present work aims to understand interactions between the entomopathogenic fungus Beauveria bassiana (Balsamao-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) and bacterial antagonists isolated from the cuticular surface of D. maidis and D. kuscheli. A total of 155 bacterial isolates were recovered from the insect's cuticle and tested against B. bassiana. Ninety-one out of 155 strains inhibited the growth of B. bassiana. Bacterial strains isolated from D. maidis were significantly more antagonistic against B. bassiana than those isolates from D. kuscheli. Among the most effective antagonistic strains, six isolates of Bacillus thuringiensis Berliner (Bacillales: Bacillaeae (after B. subtilis)), one isolate of B. mycoides Flügge, eight isolates of B. megaterium de Bary, five isolates of B.pumilus Meyer and Gottheil, one isolate of B. licheniformis (Weigmann) Chester, and four isolates of B. subtilis (Ehrenberg) Cohn were identified.
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Affiliation(s)
- A.V. Toledo
- Centro de Investigaciones de Fitopatología (CIDEFl), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Calle 60 y 119, s/n, 1900, La Plata, Buenos Aires, Argentina
| | - A.M. Alippi
- Centro de Investigaciones de Fitopatología (CIDEFl), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Calle 60 y 119, s/n, 1900, La Plata, Buenos Aires, Argentina
| | - A.M.M. de Remes Lenicov
- División Entomología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900, La Plata, Buenos Aires, Argentina
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64
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Behalo MS, Aly AA. Facile, Three-Component Synthesis of Dithiocarbamate Derivatives With Potent Antimicrobial Activity. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500903453300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. S. Behalo
- a Chemistry Department, Faculty of Science , Benha University , Benha , Egypt
| | - A. A. Aly
- a Chemistry Department, Faculty of Science , Benha University , Benha , Egypt
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65
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Caputo L, Quintieri L, Morea M, Baruzzi F. Antimicrobial activity of a meat-borne Bacillus subtilis strain against food pathogens. Eur Food Res Technol 2010. [DOI: 10.1007/s00217-010-1380-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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66
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Gana ML, Kebbouche-Gana S, Touzi A, Zorgani MA, Pauss A, Lounici H, Mameri N. Antagonistic activity of Bacillus sp. obtained from an Algerian oilfield and chemical biocide THPS against sulfate-reducing bacteria consortium inducing corrosion in the oil industry. J Ind Microbiol Biotechnol 2010; 38:391-404. [DOI: 10.1007/s10295-010-0887-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 09/20/2010] [Indexed: 11/27/2022]
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67
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68
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Behalo MS. Synthesis of 3-(phenoxathiin-2-yl)-2-pyrazoline derivatives as new antibacterial and antifungal agents. J Sulphur Chem 2010. [DOI: 10.1080/17415993.2010.497537] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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69
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Guo Q, Li S, Lu X, Li B, Ma P. PhoR/PhoP two component regulatory system affects biocontrol capability of Bacillus subtilis NCD-2. Genet Mol Biol 2010; 33:333-40. [PMID: 21637491 PMCID: PMC3036859 DOI: 10.1590/s1415-47572010005000032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Accepted: 11/17/2009] [Indexed: 11/22/2022] Open
Abstract
The Bacillus subtilis strain NCD-2 is an important biocontrol agent against cotton verticillium wilt and cotton sore shin in the field, which are caused by Verticillium dahliae Kleb and Rhizoctonia solani Kuhn, respectively. A mutant of strain NCD-2, designated M216, with decreased antagonism to V. dahliae and R. solani, was selected by mini-Tn10 mutagenesis and in vitro virulence screening. The inserted gene in the mutant was cloned and identified as the phoR gene, which encodes a sensor kinase in the PhoP/PhoR two-component system. Compared to the wild-type strain, the APase activities of the mutant was decreased significantly when cultured in low phosphate medium, but no obvious difference was observed when cultured in high phosphate medium. The mutant also grew more slowly on organic phosphate agar and lost its phosphatidylcholine-solubilizing ability. The suppression of cotton seedling damping-off in vivo and colonization of the rhizosphere of cotton also decreased in the mutant strain when compared with the wild type strain. All of these characteristics could be partially restored by complementation of the phoR gene in the M216 mutant.
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Affiliation(s)
- Qinggang Guo
- Institute of Plant Protection, Hebei Academy of Agricultural and Forestry Sciences, Integrated Pest Management Centre of Hebei Provence, Baoding China
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70
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Seneviratne G, Weerasekara MLMAW, Seneviratne KACN, Zavahir JS, Kecskés ML, Kennedy IR. Importance of Biofilm Formation in Plant Growth Promoting Rhizobacterial Action. PLANT GROWTH AND HEALTH PROMOTING BACTERIA 2010. [DOI: 10.1007/978-3-642-13612-2_4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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71
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Govindasamy V, Senthilkumar M, Magheshwaran V, Kumar U, Bose P, Sharma V, Annapurna K. Bacillus and Paenibacillus spp.: Potential PGPR for Sustainable Agriculture. PLANT GROWTH AND HEALTH PROMOTING BACTERIA 2010. [DOI: 10.1007/978-3-642-13612-2_15] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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72
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Behalo MS, Aly AA. Facile three-component synthesis of dithiocarbamate derivatives with potent antimicrobial activity. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x12594282884215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A one-pot three-component synthesis of 3-oxo-3-(phenoxathiin-2-yl)-1-phenyl/(4-chlorophenyl)propyl alkyl/aryl-dithiocarbamate was achieved from the reaction of 3-phenyl/(4-chlorophenyl)-1-(phenoxathiin-2-yl)propenones, amine and carbon disulfide. The antimicrobial activities of some compounds were also screened against some selected bacteria and fungi.
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Affiliation(s)
- Mohamed S. Behalo
- Chemistry Department, Faculty of Science, Benha University, PO Box 13518 Egypt
| | - Aly A. Aly
- Chemistry Department, Faculty of Science, Benha University, PO Box 13518 Egypt
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73
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Aly AA. Ethyl {4-[2-(saccharin-2-yl)acetylsulfamoyl]phenylazo}cyanoacetate in the synthesis of polyfunctionally heteroaromatic derivatives. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.176] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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74
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Ahmed OM, Mohamed MA, Ahmed RR, Ahmed SA. Synthesis and anti-tumor activities of some new pyridines and pyrazolo[1,5-a]pyrimidines. Eur J Med Chem 2009; 44:3519-23. [PMID: 19398146 DOI: 10.1016/j.ejmech.2009.03.042] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2009] [Revised: 03/19/2009] [Accepted: 03/24/2009] [Indexed: 10/20/2022]
Abstract
Cyclocondensation of cyanoacetamide, cyanothioacetamide and 3-aminopyrazols with sodium salt of 3-hydroxy-1-(2-naphthyl)prop-2-en-1-one gives pyridin-2-one, pyridin-2(1H)-thione, and pyrazolo[1,5-a]pyrimidine derivatives. These derivatives showed potent anti-tumor cytotoxic activity in vitro using different human cancer cell lines.
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Affiliation(s)
- Osama M Ahmed
- Zoology Department, Physiology Division, Faculty of Science, Beni-Suef University, Salah Salim Street, P.O. 62514, Beni-Suef 62514, Egypt.
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75
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Behalo MS. Synthesis and Antimicrobial Activities of Some Novel Pyrido[2,3- d ]pyrimidine Derivatives. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500802095764] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. S. Behalo
- a Chemistry Department, Faculty of Science , Benha University , Benha , Egypt
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76
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Wong J, Hao J, Cao Z, Qiao M, Xu H, Bai Y, Ng T. An antifungal protein fromBacillus amyloliquefaciens. J Appl Microbiol 2008; 105:1888-98. [DOI: 10.1111/j.1365-2672.2008.03917.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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77
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Aly AA. A Convenient Synthesis of Novel Functionalized Pyrimido[5′,4′:4,5]thieno[3,2-c]pyridazines and Related Fused Systems. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500802060040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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78
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Tupinambá G, da Silva A, Alviano C, Souto-Padron T, Seldin L, Alviano D. Antimicrobial activity ofPaenibacillus polymyxaSCE2 against some mycotoxin-producing fungi. J Appl Microbiol 2008; 105:1044-53. [DOI: 10.1111/j.1365-2672.2008.03844.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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79
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Lee YK, Senthilkumar M, Kim JH, Swarnalakshmi K, Annapurna K. Purification and partial characterization of antifungal metabolite from Paenibacillus lentimorbus WJ5. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9852-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Aly AA. A facile synthesis and heteroannulation of thiazolopyrimidine and related heterocyclic systems. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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81
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Abdelhamid AO, Mohamed MA, Zaki YH. Reactions With Hydrazonoyl Halides 59: Synthesis and Antimicrobial Activity of 2,3-Dihydro-1,3,4-thiadiazole, Triazolino[4,3-a]pyrimidine, and Pyrimido[1,2-b][1,2,4,5]tetrazin-6-one Containing Benzofuran Moiety. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500701734265] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Mahmoud A. Mohamed
- b Department of Textile, Faculty of Industrial Education , Beni-Suef University , Egypt
| | - Yasser H. Zaki
- c Department of Chemistry, Faculty of Science , Beni-Suef University , Egypt
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82
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Changes in the antibiotic production by co-culture of Rhizopus peka P8 and Bacillus subtilis IFO3335. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9690-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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83
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Cazorla FM, Romero D, Pérez-García A, Lugtenberg BJJ, Vicente AD, Bloemberg G. Isolation and characterization of antagonistic Bacillus subtilis strains from the avocado rhizoplane displaying biocontrol activity. J Appl Microbiol 2008; 103:1950-9. [PMID: 17953605 DOI: 10.1111/j.1365-2672.2007.03433.x] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM This study was undertaken to isolate Bacillus subtilis strains with biological activity against soil-borne phytopathogenic fungi from the avocado rhizoplane. METHODS AND RESULTS A collection of 905 bacterial isolates obtained from the rhizoplane of healthy avocado trees, contains 277 gram-positive isolates. From these gram-positive isolates, four strains, PCL1605, PCL1608, PCL1610 and PCL1612, identified as B. subtilis, were selected on the basis of their antifungal activity against diverse soil-borne phytopathogenic fungi. Analysis of the antifungal compounds involved in their antagonistic activity showed that these strains produced hydrolytic enzymes such as glucanases or proteases and the antibiotic lipopeptides surfactin, fengycin, and/or iturin A. In biocontrol trials using the pathosystems tomato/Fusarium oxysporum f.sp. radicis-lycopersici and avocado/Rosellinia necatrix, two B. subtilis strains, PCL1608 and PCL1612, both producing iturin A, exhibited the highest biocontrol and colonization capabilities. CONCLUSIONS Diverse antagonistic B. subtilis strains isolated from healthy avocado rhizoplanes have shown promising biocontrol abilities, which are closely linked with the production of antifungal lipopeptides and good colonization aptitudes. SIGNIFICANCE AND IMPACT OF THE STUDY This is one of the few reports dealing with isolation and characterization of B. subtilis strains with biocontrol activity against the common soil-borne phytopathogenic fungi F. oxysporum f.sp. radicis-lycopersici and R. necatrix.
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Affiliation(s)
- F M Cazorla
- Leiden University, Institute of Biology Leiden, Clusius Laboratory, Wassenaarseweg, AL Leiden, The Netherlands.
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84
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Caldeira A, Feio S, Arteiro J, Coelho A, Roseiro J. Environmental dynamics of Bacillus amyloliquefaciens CCMI 1051 antifungal activity under different nitrogen patterns. J Appl Microbiol 2008; 104:808-16. [DOI: 10.1111/j.1365-2672.2007.03601.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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85
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Ahmed SA, Abdelhamid AO, El-Ghandour AHH, Mohamed MA, Mohamed BM. Synthesis of Some New Pyrazolo[1,5-a]Pyrimidines. JOURNAL OF CHEMICAL RESEARCH 2008. [DOI: 10.3184/030823408x287096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pyrazolo[1,5-a]pyrimidines were synthesised from the the reaction of β-diketone, β-keto ester, 1,2-disubstituted acrylonitrile or sodium (3-oxocycloalkylidene) methenolate. Elemental analysis, spectral data and alternative synthesis route elucidated structures of the newly synthesised compounds.
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Affiliation(s)
- Sayed A. Ahmed
- Department of Chemistry, Faculty of Science, Beni-Suef University, Egypt
| | - Abdou O. Abdelhamid
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | | | - Mahmoud A. Mohamed
- Department of Textile, Faculty of Industrial Education, Beni-Suef University, Egypt
| | - Basant M. Mohamed
- Department of Chemistry, Faculty of Science, Beni-Suef University, Egypt
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86
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El‐Ziaty AK, Shiba SA. Antibacterial Activities of New (E) 2‐Cyano‐3‐(3′,4′‐dimethoxyphenyl)‐2‐propenoylamide Derivatives. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910701575491] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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87
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Abdelhamid AO, Ismail ZH, El Gendy MS, Ghorab MM. Reactions with Hydrazonoyl Halides 53:1 Synthesis and Antimicrobial Activity of Triazolino[4,3-a]pyrimidines and 5-Arylazothiazoles. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701501292] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Zeineb H. Ismail
- b Department of Chemistry, Faculty of Science (Girls Branch) , Al-Azhar University , Cairo , Egypt
| | - Marwa S. El Gendy
- b Department of Chemistry, Faculty of Science (Girls Branch) , Al-Azhar University , Cairo , Egypt
| | - Moustafa M. Ghorab
- c Department of Drug Radiation Research , National Center of Radiation Research and Technology , Naser City , Cairo , Egypt
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88
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Danielsson J, Reva O, Meijer J. Protection of oilseed rape (Brassica napus) toward fungal pathogens by strains of plant-associated Bacillus amyloliquefaciens. MICROBIAL ECOLOGY 2007; 54:134-40. [PMID: 17186140 DOI: 10.1007/s00248-006-9181-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Revised: 09/27/2006] [Accepted: 10/12/2006] [Indexed: 05/11/2023]
Abstract
In this report, four Bacillus strains were tested for effects on plant fitness and disease protection of oilseed rape (Brassica napus). The strains belonged to newly discovered plant-associated Bacillus amyloliquefaciens and a recently proposed species, Bacillus endophyticus. The fungal pathogens tested represented different infection strategies and included Alternaria brassicae, Botrytis cinerea, Leptosphaeria maculans, and Verticillium longisporum. The B. amyloliquefaciens strains showed no or a weak plant growth promoting activity, whereas the B. endophyticus strain had negative effects on the plant as revealed by phenological analysis. On the other hand, two of the B. amyloliquefaciens strains conferred protection of oilseed rape toward all pathogens tested. In vitro experiments studying the effects of Bacillus exudates on fungal growth showed clear growth inhibition in several but not all cases. The protective effects of Bacillus can therefore, at least in part, be explained by production of antibiotic substances, but other mechanisms must also be involved probably as a result of intricate plant-bacteria interaction. The protective effects observed for certain Bacillus strains make them highly interesting for further studies as biocontrol agents in Brassica cultivation.
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Affiliation(s)
- Jesper Danielsson
- Department of Plant Biology and Forest Genetics, Genetics Center, Box 7080, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden.
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89
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Abdelhamid AO, Sayed AR. Reaction of Hydrazonoyl Halides 52: Synthesis and Antimicrobial Activity of Some New Pyrazolines and 1,3,4-Thiadiazolines. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701313938] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Abdelwahed R. Sayed
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
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90
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Abdelhamid AO, Sayed AR, Zaki YH. Reaction of Hydrazonoyl Halides 511: A Facile Synthesis of 5-Arylthiazoles and Triazolino[4,3- a ]pyrimidines as Antimicrobial Agents. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701242145] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Abdelwahed R. Sayed
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Yasser H. Zaki
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
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91
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Chang I, Kim JD. Inhibition of Aflatoxin Production of Aspergillus flavus by Lactobacillus casei. MYCOBIOLOGY 2007; 35:76-81. [PMID: 24015075 PMCID: PMC3763133 DOI: 10.4489/myco.2007.35.2.076] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2007] [Indexed: 06/02/2023]
Abstract
Lactobacillus casei KC-324 was tested for its ability to inhibit aflatoxin production and mycelial growth of Aspergillus flavus ATCC 15517 in liquid culture. Aflatoxin B1 biosynthesis and mycelial growth were inhibited in both simultaneous culture and individual antagonism assays,suggesting that the inhibitory activity was due to extracellular metabolites produced in cell-free supernatant fluids of the cultured broth of L. casei KC-324. In cell-free supernatant fluids of all media tested,deMan,Rogosa and Sharpe broth,potato dextrose broth,and Czapek-Dox broth + 1% yeast extract showed higher antiaflatoxigenic activity. In these case, fungal growths, however, was not affected as measured by mycelial dry weight. The antiaflatoxigenic metabolites from L. casei KC-324 were produced over wide range of temperatures between 25℃ and 37℃. However, these metabolites were not thermostable since the inhibitory activity of the supernatant was inactivated within 30 minutes at 100℃ and 121℃. The inhibitory activity was not influenced by changing pH of supernatant between 4 and 10. However,the antiaflatoxigenic activity was slightly reduced at pH 10.
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Affiliation(s)
- Injeong Chang
- Institute of Industrial Biotechnology, Department of Biological Engineering, Inha University, Incheon 402-751, Korea
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92
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Mizumoto S, Hirai M, Shoda M. Enhanced iturin A production by Bacillus subtilis and its effect on suppression of the plant pathogen Rhizoctonia solani. Appl Microbiol Biotechnol 2007; 75:1267-74. [PMID: 17453193 DOI: 10.1007/s00253-007-0973-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2007] [Revised: 03/21/2007] [Accepted: 03/23/2007] [Indexed: 01/22/2023]
Abstract
Enhanced production of the antibiotic iturin A by Bacillus subtilis RB14-CS reached 4.4 g L(-1) in SM medium containing soybean meal and maltose, which was 16-fold and 2.2-fold higher than that in original and modified number 3S media, respectively. When various volumes of RB14-CS cultures grown in SM medium were applied to pot tests of tomato damping-off caused by Rhizoctonia solani, damping-off was dose-dependently suppressed by the cultures. Suppression by SM-grown cultures was significantly more effective than that by cultures grown in original or modified number 3S media. The iturin A concentrations in soil decreased to undetectable levels after 17 days of cultivation in pot tests, indicating that iturin A has a low persistence in soil.
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Affiliation(s)
- S Mizumoto
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-29-4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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93
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Affiliation(s)
- A. A. Aly
- a Chemistry Department , Benha University , Benha , Egypt
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94
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Abdelhamid AO, Al-Atoom AA. 2-[4-(2-Thienyl)-1,3-thiazol-2-yl]ethanenitrile in Heterocyclic Synthesis of Biological Interist. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/104265090885048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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95
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Ojiambo PS, Scherm H. Biological and application-oriented factors influencing plant disease suppression by biological control: a meta-analytical review. PHYTOPATHOLOGY 2006; 96:1168-74. [PMID: 18943952 DOI: 10.1094/phyto-96-1168] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
ABSTRACT Studies to evaluate the effectiveness of biological control in suppressing plant disease often report inconsistent results, highlighting the need to identify general factors that influence the success or failure of biological control in plant pathology. We conducted a quantitative synthesis of previously published research by applying meta-analysis to determine the overall effectiveness of biocontrol in relation to biological and application-oriented factors. For each of 149 entries (antagonist-disease combinations) from 53 reports published in Biological & Cultural Tests between 2000 and 2005, an effect size was calculated as the difference in disease intensity expressed in standard deviation units between the biocontrol treatment and its corresponding untreated control. Effect sizes ranged from -1.15 (i.e., disease strongly enhanced by application of the biocontrol agent) to 4.83 (strong disease suppression by the antagonist) with an overall weighted mean of 0.62, indicating moderate effectiveness on average. There were no significant (P >0.05) differences in effect sizes between entries from studies carried out in the greenhouse versus the field, between those involving soilborne versus aerial diseases, or among those carried out in conditions of low, medium, or high disease pressure (expressed relative to the disease intensity in the untreated control). However, effect sizes were greater on annual than on perennial crops, regardless of whether the analysis was carried out for all entries (P = 0.0268) or for those involving only soilborne diseases (P = 0.0343). Effect sizes were not significantly different for entries utilizing fungal versus bacterial biocontrol agents or for those targeting fungal versus bacterial pathogens. However, entries that used r-selected biological control agents (i.e., those having short generation times and producing large numbers of short-lived offspring) were more effective than those that applied antagonists that were not r-selected (P = 0.0312). Interestingly, effect sizes for entries that used Bacillus spp. as biological control agents were lower than for those that applied other antagonists (P = 0.0046 for all entries and P = 0.0114 for soilborne diseases). When only aerial diseases were considered, mean effect size was greater for entries that received one or two sprays than for those that received more than eight sprays of the biocontrol agent (P = 0.0002). This counterintuitive result may indicate that investigators often attempt unsuccessfully to compensate for anticipated poor performance in antagonist-disease combinations by making more applications.
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96
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Aly AA. Synthesis of Polyfunctionally Substituted Pyrazolonaphthyridine, Pentaazanaphthalene, and Heptaazaphenanthrene Derivatives. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426500600695179] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- A. A. Aly
- a Chemistry Department , Benha University , Benha , Egypt
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97
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Aly AA, Wasfy AAF. γ-Oxo Carboxylic Acids in Heterocyclic Synthesis IV. Synthesis of Some Pyridazines Containing Phthalyl and Tosyl Amino Acids Using Dcc as the Condensing Agent. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426500390221096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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98
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Aly AA, Gad El-Karim IA. Synthesis of S-triazolo[3, 4a] phthalazine and Related Polynuclear Heterocyclic Systems. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/104265090902769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- A. A. Aly
- a Chemistry Department , Benha University , Benha , Egypt
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99
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Zaki YH, Ahmed SA, Hussein AM, Abdelhamid AO. Reactions of Hydrazonoyl Halides 47: Synthesis of Some New 2,3-dihydro-1,3,4-thiadiazoles, Triazolo[4, 3-a]pyrimidines, and Pyrazolo[3, 4-d]pyridazines with Expected Biological Activity. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426500500272079] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Yasser H. Zaki
- a Department of Chemistry , Cairo University (Beni-Suef Branch) , Beni-Suef , Egypt
| | - Sayed A. Ahmed
- a Department of Chemistry , Cairo University (Beni-Suef Branch) , Beni-Suef , Egypt
| | - Ahmed M. Hussein
- a Department of Chemistry , Cairo University (Beni-Suef Branch) , Beni-Suef , Egypt
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100
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Palumbo JD, Baker JL, Mahoney NE. Isolation of bacterial antagonists of Aspergillus flavus from almonds. MICROBIAL ECOLOGY 2006; 52:45-52. [PMID: 16767519 DOI: 10.1007/s00248-006-9096-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2006] [Revised: 04/12/2006] [Accepted: 04/17/2006] [Indexed: 05/10/2023]
Abstract
Bacteria were isolated from California almond orchard samples to evaluate their potential antifungal activity against aflatoxin-producing Aspergillus flavus. Fungal populations from the same samples were examined to determine the incidence of aflatoxigenic Aspergillus species. Antagonistic activities of the isolated bacterial strains were screened against a nonaflatoxigenic nor mutant of A. flavus, which accumulates the pigmented aflatoxin precursor norsolorinic acid (NOR) under conditions conducive to aflatoxin production. Using solid and liquid media in coculture assays, 171 bacteria isolated from almond flowers, immature nut fruits, and mature nut fruits showed inhibition of A. flavus growth and/or inhibition of NOR accumulation. Bacterial isolates were further characterized for production of extracellular enzymes capable of hydrolyzing chitin or yeast cell walls. Molecular and physiological identification of the bacterial strains indicated that the predominant genera isolated were Bacillus, Pseudomonas, Ralstonia, and Burkholderia, as well as several plant-associated enteric and nonenteric bacteria. A set of 20 isolates was selected for further study based on their species identification, antifungal phenotypes, and extracellular enzyme production. Quantitative assays using these isolates in liquid coculture with a wild-type, aflatoxin-producing A. flavus strain showed that a number of strains completely inhibited fungal growth in three different media. These results indicate the potential for development of bacterial antagonists as biological control agents against aflatoxigenic aspergilli on almonds.
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Affiliation(s)
- Jeffrey D Palumbo
- Plant Mycotoxin Research Unit, Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 800 Buchanan St., Albany, CA 94710, USA.
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