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Gruľová D, Baranová B, Francolino R, Elshafie HS, Kiššová Z, Glovaťáková A, De Martino L, Amato G, Martino M, Caputo L, Polito F, Manna F, Camele I, Tkáčiková Ľ, De Feo V. Exploring the Diverse Biological Properties of Cannabidiol: A Focus on Plant Growth Stimulation. Chem Biodivers 2024; 21:e202400274. [PMID: 38466647 DOI: 10.1002/cbdv.202400274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/13/2024]
Abstract
The aim of the current study was to compare some biological activities of edible oils enriched with 10 % of cannabidiol (CBD samples) from the Slovak market. In addition, hemp, coconut, argan, and pumpkin pure oils were also examined. The study evaluated the fatty acids content, as well as antibacterial, antifungal, antioxidant, cytotoxic, and phytotoxic activities. The CBD samples presented antimicrobial activity against the tested bacterial strains at higher concentrations (10000 and 5000 mg/L) and antifungal activity against Alternaria alternata, Penicillium italicum and Aspergillus flavus. DPPH⋅ and FRAP assays showed greater activity in CBD-supplemented samples compared to pure oils and vitamin E. In cell lines (IPEC-J2 and Caco-2), a reduced cell proliferation and viability were observed after 24 hours of incubation with CBD samples. The oils showed pro-germinative effects. The tested activities were linked to the presence of CBD in the oils.
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Affiliation(s)
- Daniela Gruľová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Presov, 17. novembra 1, 08001, Presov, Slovakia
| | - Beáta Baranová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Presov, 17. novembra 1, 08001, Presov, Slovakia
| | - Rosaria Francolino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Zuzana Kiššová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81, Kosice, Slovakia
| | - Alžbeta Glovaťáková
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Presov, 17. novembra 1, 08001, Presov, Slovakia
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Giuseppe Amato
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Mara Martino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Flavio Polito
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Francesco Manna
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Ľudmila Tkáčiková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, 041 81, Kosice, Slovakia
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
- Institute of Food Sciences, CNR-ISA, Via Roma, 64, 83100, Avellino, Italy
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Mohamed AA, Sadeek SA, Rashid NG, Elshafie HS, Camele I. Synthesis, Characterization and Evaluation of the Antimicrobial and Herbicidal Activities of Some Transition Metal Ions Complexes with the Tranexamic Acid. Chem Biodivers 2024:e202301970. [PMID: 38683904 DOI: 10.1002/cbdv.202301970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/08/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024]
Abstract
New tranexamic acid (TXA) complexes of ferric(III), cobalt(II), nickel(II), copper(II) and zirconium(IV) were synthesized and characterized by elemental analysis (CHN), conductimetric (Λ), magnetic susceptibility investigations (μeff), Fourier transform infrared (FT-IR), proton nuclear magnetic resonance (1H-NMR), ultraviolet visible (UV-vis.), optical band gap energy (Eg) and thermal studies (TG/DTG and DTA). TXA complexes were established in 1 : 2 (metal: ligand) stoichiometric ratio according to CHN data. Based on FT-IR and 1H-NMR data the disappeared of the carboxylic proton supported the deprotonating of TXA and linked to metal ions via the carboxylate group's oxygen atom as a bidentate ligand. UV-visible spectra and magnetic moment demonstrated that all chelates have geometric octahedral structures. Eg values indicated that our complexes are more electro conductive. DTA revealed presence of water molecules in inner and outer spheres of the complexes. DTA results showed that endothermic and exothermic peaks were identified in the degradation mechanisms. The ligand and metal complexes were investigated for their antimicrobial and herbicidal efficacy. The Co(II) and Ni(II) complexes showed antimicrobial activity against some tested species. The obtained results showed a promising herbicidal effect of TXA ligand and its metal complexes particularly copper and zirconium against the three tested plants.
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Affiliation(s)
- Amira A Mohamed
- Department of Basic Science, Zagazig Higher Institute of Engineering and Technology, Zagazig, 44519, Egypt
| | - Sadeek A Sadeek
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | | | - Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo, Lucano 10, Potenza, 85100, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo, Lucano 10, Potenza, 85100, Italy
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Tathode MS, Bonomo MG, Zappavigna S, Mang SM, Bocchetti M, Camele I, Caraglia M, Salzano G. Whole-genome analysis suggesting probiotic potential and safety properties of Pediococcus pentosaceus DSPZPP1, a promising LAB strain isolated from traditional fermented sausages of the Basilicata region (Southern Italy). Front Microbiol 2024; 15:1268216. [PMID: 38638895 PMCID: PMC11024341 DOI: 10.3389/fmicb.2024.1268216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 03/07/2024] [Indexed: 04/20/2024] Open
Abstract
Introduction Many lactic acid bacteria (LAB) strains are currently gaining attention in the food industry and various biological applications because of their harmless and functional properties. Given the growing consumer demand for safe food, further research into potential probiotic bacteria is beneficial. Therefore, we aimed to characterize Pediococcus pentosaceus DSPZPP1, a LAB strain isolated from traditional fermented sausages from the Basilicata region of Southern Italy. Methods In this study, we analyzed the whole genome of the P. pentosaceus DSPZPP1 strain and performed in silico characterization to evaluate its applicability for probiotics and use in the food industry. Results and Discussion The whole-genome assembly and functional annotations revealed many interesting characteristics of the DSPZPP1 strain. Sequencing raw reads were assembled into a draft genome of size 1,891,398 bp, with a G + C content of 37.3%. Functional annotation identified 1930 protein-encoding genes and 58 RNAs including tRNA, tmRNA, and 16S, 23S, and 5S rRNAs. The analysis shows the presence of genes that encode water-soluble B-group vitamins such as biotin, folate, coenzyme A, and riboflavin. Furthermore, the analysis revealed that the DSPZPP1 strain can synthesize class II bacteriocin, penocin A, adding importance to the food industry for bio-enriched food. The DSPZPP1 genome does not show the presence of plasmids, and no genes associated with antimicrobial resistance and virulence were found. In addition, two intact bacteriophages were identified. Importantly, the lowest probability value in pathogenicity analysis indicates that this strain is non-pathogenic to humans. 16 s rRNA-based phylogenetic analysis and comparative analysis based on ANI and Tetra reveal that the DSPZPP1 strain shares the closest evolutionary relationship with P. pentosaceus DSM 20336 and other Pediococcus strains. Analysis of carbohydrate active enzymes (CAZymes) identified glycosyl transferases (GT) as a main class of enzymes followed by glycoside hydrolases (GH). Our study shows several interesting characteristics of the isolated DSPZPP1 strain from fermented Italian sausages, suggesting its potential use as a promising probiotic candidate and making it more appropriate for selection as a future additive in biopreservation.
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Affiliation(s)
- Madhura S. Tathode
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Maria Grazia Bonomo
- Department of Science, Università degli Studi della Basilicata, Potenza, Italy
- Spinoff TNcKILLERS, Potenza, Italy
| | - Silvia Zappavigna
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Stefania Mirela Mang
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), Università degli Studi della Basilicata, Potenza, Italy
| | - Marco Bocchetti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, Ariano Irpino, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), Università degli Studi della Basilicata, Potenza, Italy
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, Ariano Irpino, Italy
| | - Giovanni Salzano
- Department of Science, Università degli Studi della Basilicata, Potenza, Italy
- Spinoff TNcKILLERS, Potenza, Italy
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Elshafie HS, Camele I. Plant Essential Oil with Biological Activity (II). Plants (Basel) 2023; 12:3616. [PMID: 37896079 PMCID: PMC10609977 DOI: 10.3390/plants12203616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023]
Abstract
Essential oils (EOs) are concentrated hydrophobic liquids that originate from plants and contain different bioactive chemicals and volatile substances. Several plant essential oils (PEOs) are obtained from a variety of medicinal plants and have been utilized in folk medicine and traditional pharmacopoeia. They have a long history of usage as antibacterial medicines to treat various human, animal, and plant diseases. The extraction of essential oils frequently involves fractional distillation with a variety of organic solvents. EOs can be used successfully in the food and cosmetics industries in addition to their traditional use as antimicrobial agents. This Special Issue covers various significant PEOs and their individual chemical constituents and biological-pharmaceutical functions. Further information focused on the chemical characterizations, modes of action, and biopharmaceutical properties of PEOs. This Special Issue includes seventeen research papers from different geographical zones.
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Affiliation(s)
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy;
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Camele I, Sadeek SA, Racioppi R, Elshafie HS. Antimicrobial Activity of Diffusible and Volatile Metabolites Emitted by Beauveria bassiana: Chemical Profile of Volatile Organic Compounds (VOCs) Using SPME-GC/MS Analysis. Plants (Basel) 2023; 12:2854. [PMID: 37571008 PMCID: PMC10421005 DOI: 10.3390/plants12152854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/21/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
The genus Beauveria includes important entomopathogenic and endophytic fungi; among them, Beauveria bassiana is the most studied species. However, there is little knowledge regarding their antimicrobial activity. The current research has been conducted to evaluate the in vitro antagonistic activity of B. bassiana and the antimicrobial efficacy of its Exo and Endo metabolites against Bacillus cereus, B. megaterium, Clavibacter michiganensis (Gram positive bacteria, G+ve), Xanthomonas campestris, Pseudomonas aeruginosa and P. fluorescence (Gram negative bacteria, G-ve). In addition, solid-phase microextraction (SPME) was coupled with Gas Chromatography-Mass Spectrometry (GC/MS) to qualitatively measure the volatile organic compounds' (VOCs) metabolic profile of the most efficient studied isolate of B. bassiana. The obtained results showed that the isolate UniB2439-3 has a promising antibacterial effect against most of the studied target bacteria. An SPME-GC/MS analysis of VOCs revealed the presence of ethanol, butanal,2-methyl, 2,4-dimethyl-1-heptene, octane, 4-methyl and β-elemene as the dominant bioactive compounds. The results demonstrated that the efficient isolate of B. bassiana can be potentially used as a biocontrol agent against several bacteria, especially G+ve ones.
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Affiliation(s)
- Ippolito Camele
- School of Agricultural, Forestry, Food and Environment al Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Sadeek A. Sadeek
- Department of Chemistry, Faculty of Science, University of Zagazig, Zagazig 44519, Egypt;
| | - Rocco Racioppi
- Department of Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy;
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environment al Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy
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Elshafie HS, Osman A, El-Saber MM, Camele I, Abbas E. Antifungal Activity of Green and Chemically Synthesized ZnO Nanoparticles against Alternaria citri, the Causal Agent Citrus Black Rot. Plant Pathol J 2023; 39:265-274. [PMID: 37291767 DOI: 10.5423/ppj.oa.02.2023.0035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/02/2023] [Indexed: 06/10/2023]
Abstract
Citrus black rot is a serious disease of citrus plants caused by Alternaria citri. The current study aimed to synthesize zinc oxide nanoparticles (ZnO-NPs) by chemically or green method and investigate their antifungal activity against A. citri. The sizes of synthesized as measured by transmission electron microscope of ZnO-NPs were 88 and 65 nm for chemical and green methods, respectively. The studied prepared ZnO-NPs were applied, in vitro and in situ, at different concentrations (500, 1,000, and 2,000 µg/ml) in post-harvest treatment on navel orange fruits to verify the possible control effect against A. citri. Results of in vitro assay demonstrated that, at concentration 2,000 µg/ml, the green ZnO-NPs was able to inhibit about 61% of the fungal growth followed by 52% of chemical ZnO-NPs. In addition, scanning electron microscopy of A. citri treated in vitro with green ZnO-NPs showed swelling and deformation of conidia. Results showed also that, using a chemically and green ZnO-NPs at 2,000 µg/ml in situ in post-harvest treatment of orange, artificially-infected with A. citri, has reduced the disease severity to 6.92% and 9.23%, respectively, compared to 23.84% of positive control (non-treated fruits) after 20 days of storage. The out findings of this study may contribute to the development of a natural, effective, and eco-friendly strategy for eradicating harmful phytopathogenic fungi.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, viale dell'Ateneo Lucano 10, Potenza 85100, Italy
| | - Ali Osman
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Mahmoud M El-Saber
- Biochemistry Unit, Genetic Resources Department, Desert Research Center, Cairo 11753, Egypt
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, viale dell'Ateneo Lucano 10, Potenza 85100, Italy
| | - Entsar Abbas
- Plant Pathology Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
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Elshafie HS, De Martino L, Formisano C, Caputo L, De Feo V, Camele I. Chemical Identification of Secondary Metabolites from Rhizospheric Actinomycetes Using LC-MS Analysis: In Silico Antifungal Evaluation and Growth-Promoting Effects. Plants (Basel) 2023; 12:plants12091869. [PMID: 37176926 PMCID: PMC10181443 DOI: 10.3390/plants12091869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
The rhizosphere is a rich source of actinomycetes which can produce several potential biologically active secondary metabolites. The principal goal for this research is to extract, purify, and characterize the bioactive secondary metabolites produced by three different strains of actinomycetes isolated from the rhizosphere of rosemary, black locust, and olive. The plant growth-promoting effect (PGPE) of the studied strains of actinomycetes on Ocimum basilicum L. (basil) and the disease-control effect on necrotic stem lesions of "black leg" caused by Fusarium tabacinum on basil were evaluated in silico. The cell-free culture filtrates from the studied actinomycetes isolates were evaluated in vitro for their antimicrobial activity against some common phytopathogens. The secondary metabolites obtained from the cell-free culture filtrates have been chemically characterized using high-resolution electrospray ionization of liquid-chromatography/mass-spectrometric detection (ESI-(HR)Orbitrap-MS). Results of the in silico trial showed that all studied isolates demonstrated PGPE on basil seedlings, improved some eco-physiological characteristics, and reduced the disease incidence of F. tabacinum. The extracted metabolites from the studied actinomycetes demonstrated antimicrobial activity in a Petri-plates assay. The chemical analysis revealed the presence of 20 different components. This research emphasizes how valuable the examined isolates are for producing bioactive compounds, indicating their putative antimicrobial activity and their potential employment as fungal biocontrol agents. In particular, the obtained results revealed the possibility of green synthesis of some important secondary metabolites, such as N-Acetyl-l-histidinol, Rhizocticin A, and Eponemycin, from actinomycetes. The bioactive metabolites may be successively used to develop novel bio-formulations for both crop protection and/or PGPE.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Carmen Formisano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via Montesano 49, 80131 Naples, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
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Elshafie SS, Elshafie HS, El Bayomi RM, Camele I, Morshdy AEMA. Evaluation of the Antimicrobial Activity of Four Plant Essential Oils against Some Food and Phytopathogens Isolated from Processed Meat Products in Egypt. Foods 2022; 11:foods11081159. [PMID: 35454746 PMCID: PMC9032107 DOI: 10.3390/foods11081159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 02/05/2023] Open
Abstract
Synthetic preservatives are widely utilized by the food industry to inhibit the microbial contamination and increase food safety and shelf life. The excessive utilization of synthetic preservatives can have a negative impact on human health and the environment. There is a great interest to find out natural substances as possible food-preservatives. The consumers’ preference for food products with natural ingredients prompted food manufacturers to utilize natural-based preservatives in their production. It is worth noting that plant essential oils (EOs) among the natural-based substances have been efficiently used as antimicrobial agents against phyto- and food pathogens. The current study was conducted to evaluate the microbial contamination of three industrial meat products from five governorates in Egypt, identify the predominant bacterial and fungal isolates and determine the antimicrobial efficacy of some EOs (thyme, fennel, anise and marjoram) against the most predominant microbial isolates. A sensory test was also performed to estimate the customer preferences for specific organoleptic aspects of meat products after EOs treatment. Results showed that there is a promising antimicrobial activity of all studied EOs against some microbial isolates in a dose-dependent manner. In particular, thyme EO showed the highest significant antibacterial activity against P. fluorescence and E. coli. Whereas the marjoram EO showed the highest activity against P. aeruginosa. In addition, the sensory test revealed that the treatment with anise and marjoram EOs showed the highest acceptability by the testers and did not show significant differences on the organoleptic properties with respect to control. As overall, the obtained results of the current research are promising and proved feasibility of employing plant EOs as possible preservatives for processed meat products.
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Affiliation(s)
- Shahenda S. Elshafie
- Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt; (S.S.E.); (R.M.E.B.); (A.E.M.A.M.)
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy;
- Correspondence: ; Tel.: +39-0971-205522; Fax: +39-0971-205503
| | - Rasha M. El Bayomi
- Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt; (S.S.E.); (R.M.E.B.); (A.E.M.A.M.)
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy;
| | - Alaa Eldin M. A. Morshdy
- Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt; (S.S.E.); (R.M.E.B.); (A.E.M.A.M.)
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Elshafie HS, Sadeek SA, Camele I, Mohamed AA. Biochemical Characterization of New Gemifloxacin Schiff Base (GMFX-o-phdn) Metal Complexes and Evaluation of Their Antimicrobial Activity against Some Phyto- or Human Pathogens. Int J Mol Sci 2022; 23:ijms23042110. [PMID: 35216223 PMCID: PMC8877648 DOI: 10.3390/ijms23042110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 02/06/2023] Open
Abstract
Four novel ligand-metal complexes were synthesized through the reaction of Fe(III), pleaseCo(II), Zn(II), and Zr(IV) with Schiff base gemifloxacin reacted with ortho-phenylenediamine (GMFX-o-phdn) to investigate their biological activities. Elemental analysis, FT-IR, 1H NMR, UV-visible, molar conductance, melting points, magnetic susceptibility, and thermal analyses have been carried out for insuring the chelation process. The antimicrobial activity was carried out against Monilinia fructicola, Aspergillus flavus, Penicillium italicum, Botrytis cinerea, Escherichia coli, Bacillus cereus, Pseudomonas fluorescens, and P. aeruginosa. The radical scavenging activity (RSA%) was in vitro evaluated using ABTS method. FT-IR spectra indicated that GMFX-o-phdn chelated with metal ions as a tetradentate through oxygen of carboxylate group and nitrogen of azomethine group. The data of infrared, 1H NMR, and molar conductivity indicate that GMFX–o-phdn reacted as neutral tetra dentate ligand (N2O2) with metal ions through the two oxygen atoms of the carboxylic group (oxygen containing negative charge) and two nitrogen atoms of azomethine group (each nitrogen containing a lone pair of electrons) (the absent of peak corresponding to ν(COOH) at 1715 cm−1, the shift of azomethine group peak from 1633 cm−1 to around 1570 cm−1, the signal at 11 ppm of COOH and the presence of the chloride ions outside the complex sphere). Thermal analyses (TG-DTG/DTA) exhibited that the decaying of the metal complexes exists in three steps with the final residue metal oxide. The obtained data from DTA curves reflect that the degradation processes were exothermic or endothermic. Results showed that some of the studied complexes exhibited promising antifungal activity against most of the tested fungal pathogens, whereas they showed higher antibacterial activity against E. coli and B. cereus and low activity against P. fluorescens and P. aeruginosa. In addition, GMFX-o-phdn and its metal complexes showed strong antioxidant effect. In particular, the parent ligand and Fe(III) complex showed greater antioxidant capacity at low tested concentrations than that of other metal complexes where their IC50 were 169.7 and 164.6 µg/mL, respectively.
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Affiliation(s)
- Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy;
| | - Sadeek A. Sadeek
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt;
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy;
- Correspondence: ; Tel.: +39-0971-205544; Fax: +39-0971-205503
| | - Amira A. Mohamed
- Department of Basic Science, Zagazig Higher Institute of Engineering and Technology, Zagazig 44519, Egypt;
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El‐Attar MS, Elshafie HS, Sadeek SA, El‐Farargy AF, El‐Desoky SI, El‐Shwiniy WH, Camele I. Biochemical Characterization and Antimicrobial Activity against Some Human or Phyto‐Pathogens of New Diazonium Heterocyclic Metal Complexes. Chem Biodivers 2022; 19:e202100785. [DOI: 10.1002/cbdv.202100785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/06/2021] [Indexed: 01/29/2023]
Affiliation(s)
- Mohamed S. El‐Attar
- Department of Chemistry Faculty of Science Zagazig University Zagazig 44519 Egypt
| | - Hazem S. Elshafie
- School of Agricultural Forestry Food and Environmental Sciences University of Basilicata Viale dell'Ateneo Lucano 10 Potenza 85100 Italy
| | - Sadeek A. Sadeek
- Department of Chemistry Faculty of Science Zagazig University Zagazig 44519 Egypt
| | - Ahmed F. El‐Farargy
- Department of Chemistry Faculty of Science Zagazig University Zagazig 44519 Egypt
| | - Sameh I. El‐Desoky
- Regional Joint Laboratory Directorate of Health Affairs Zagazig 44515 Egypt
| | - Walaa H. El‐Shwiniy
- Department of Chemistry College of Science University of Bisha Bisha 61922 Saudi Arabia
| | - Ippolito Camele
- School of Agricultural Forestry Food and Environmental Sciences University of Basilicata Viale dell'Ateneo Lucano 10 Potenza 85100 Italy
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Mohamed AA, Elshafie HS, Sadeek SA, Camele I. Biochemical Characterization, Phytotoxic Effect and Antimicrobial Activity against Some Phytopathogens of New Gemifloxacin Schiff Base Metal Complexes. Chem Biodivers 2021; 18:e2100365. [PMID: 34288421 DOI: 10.1002/cbdv.202100365] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/29/2021] [Indexed: 01/03/2023]
Abstract
String of Fe(III), Cu(II), Zn(II) and Zr(IV) complexes were synthesized with tetradentateamino Schiff base ligand derived by condensation of ethylene diamine with gemifloxacin. The novel Schiff base (4E,4'E)-4,4'-(ethane-1,2-diyldiazanylylidene)bis{7-[(4Z)-3-(aminomethyl)-4-(methoxyimino)pyrrolidin-1-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid} (GMFX-en) and its metal complexes were identified and confirmed by elemental analyses, FT-IR, UV/VIS, 1 H-NMR spectra, magnetic susceptibility, conductometric measurements and thermal analyses. The FT-IR spectral data showed the chelation behavior of GMFX-en toward the metal ions through oxygen of carboxylate group and nitrogen of azomethine group. In the light of all spectral data, these complexes presumably have octahedral geometry configurations. Thermal analysis specified that the decaying of the metal complexes exist in two or three steps with the final residue metal oxides. Antimicrobial activity of the new prepared metal complexes was screened against some common phytopathogens and their mode of action has been also discussed. The potential phytotoxic effectiveness of the new complexes was furthermore inspected on two commonly experimental plants. The complexes showed significant antimicrobial and phytotoxic effects against the majority of tested phytopathogens and the two tested plants, respectively. The potential antimicrobial activity of the complexes proved their possibility to be used successfully in agropharmacutical industry to control many serious phytopathogens. The phytotoxicity of the studied complexes also indicated their possibility as potential bio-based herbicides alternatives to weed control in crop fields.
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Affiliation(s)
- Amira A Mohamed
- Department of Basic Science, Zagazig Higher Institute of Engineering and Technology, 44519, Zagazig, Egypt
| | - Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - Sadeek A Sadeek
- Department of Chemistry, Faculty of Science, Zagazig University, 44519, Zagazig, Egypt
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100, Potenza, Italy
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Pârlici RM, Maxim A, Mang SM, Camele I, Mihalescu L, Stoian V. Alternative Control of Phragmidium rubi-idaei Infecting Two Rubus Species. Plants (Basel) 2021; 10:plants10071452. [PMID: 34371655 PMCID: PMC8309269 DOI: 10.3390/plants10071452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/22/2021] [Accepted: 07/10/2021] [Indexed: 01/23/2023]
Abstract
Organic berry plantations have been gaining popularity among farmers during recent years. Even so, farmers experience serious challenges in disease control management, which is a concern in organic farming. Phragmidium rubi-idaei (DC) P. Karst is the pathogen responsible for blackberry and raspberry rust disease, one of the most present and active diseases in plantations. The antifungal certified products found on the organic farming market offer the opportunity for an efficient control strategy over plant pathogens in fruit shrub plantations. In this study, 5 natural based products—namely Altosan, Mimox, Canelys, Zitron, and Zeolite—were tested for their fungistatic effect over P. rubi-idaei. The experiments were carried out under laboratory conditions, performing observations over the impact of organic products, used at different concentration levels, on rust conidia germination. Moreover, field experiments were conducted in order to evaluate the efficiency of different treatments for rust control on raspberry (‘Polka’, ‘Veten’ and ‘Heritage’) and blackberry (‘Thorn Free’, ‘Chester’ and ‘Loch Ness’) varieties. Data analysis based on ANOVA tests showed significant differences between the tested variants and the control sample at p < 0.001. Furthermore, LSD test confirmed differences between all substances tested (p < 0.005). The natural products Canelys (formulated with cinnamon) and Zytron (based on citrus extract) have proven the highest inhibitory capacity for conidia germination during in vitro tests registering values of 80.42% and 78.34%, respectively. The same high inhibitory rates against rust pathogen were kept also in the field tests using the same two natural-based products mentioned earlier. In addition, outcomes from this study demonstrated that Zeolite is not recommended for raspberry or blackberry rust control.
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Affiliation(s)
- Raluca-Maria Pârlici
- Department of Engineering and Environmental Protection, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, No. 3-5, Calea Manastur Street, 400372 Cluj-Napoca, Romania;
| | - Aurel Maxim
- Department of Engineering and Environmental Protection, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, No. 3-5, Calea Manastur Street, 400372 Cluj-Napoca, Romania;
- Correspondence:
| | - Stefania Mirela Mang
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Vialedell’Ateneo Lucano 10, 85100 Potenza, Italy; (S.M.M.); (I.C.)
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Vialedell’Ateneo Lucano 10, 85100 Potenza, Italy; (S.M.M.); (I.C.)
| | - Lucia Mihalescu
- Department of Biology, North University Center of Baia Mare, Technical University of Cluj Napoca, No.76, Victoria Street, 430122 Baia Mare, Romania;
| | - Vlad Stoian
- Department of Microbiology, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, No. 3-5, Calea Manastur Street, 400372 Cluj-Napoca, Romania;
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Elshafie HS, Caputo L, De Martino L, Sakr SH, De Feo V, Camele I. Study of Bio-Pharmaceutical and Antimicrobial Properties of Pomegranate ( Punica granatum L.) Leathery Exocarp Extract. Plants (Basel) 2021; 10:plants10010153. [PMID: 33466616 PMCID: PMC7828685 DOI: 10.3390/plants10010153] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 12/13/2022]
Abstract
Pomegranate (Punica granatum L.) fruits are important sources of vitamins and minerals and widely used in the dietary supplement industry. An aqueous extract of its leathery exocarp (LEP) was obtained by a solid-phase micro-extraction method. The antifungal activity was examined against the phytopathogenic fungi, Fusarium oxysporum, Phytophthora cinnamomi, Penicillium digitatum and Botrytis cinerea, and the antibacterial activity was evaluated against Escherichia coli, Xanthomonas campestris,Bacillus megaterium and Clavibacter michiganensis. The antimicrobial assays showed, in some cases, a promising antimicrobial effect compared to the synthetic drugs. The possible anti-acetylcholinesterase and antioxidant activities of the LEP extract were investigated by the Ellman’s assay and 2,2-diphenyl-1-picrylhydrazyl (DPPH) test, respectively, and their results showed that the LEP extract has an effective anti-acetylcholinesterase inhibitory effect and an antioxidant activity. Thus, the LEP extract could be valid as a candidate for further studies on the use of pomegranate in neurodegenerative diseases as a food preservative and a suitable substitute to control several phytopathogens.
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Affiliation(s)
- Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (S.H.S.)
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Shimaa H. Sakr
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (S.H.S.)
- Department of Chemistry, Faculty of Science, Zagazig University, 44511 Zagazig, Egypt
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (S.H.S.)
- Correspondence: ; Tel.: +39-0971-205544
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Camele I, Elshafie HS, Nuzzaci M, Logozzo G, Gioia T. Biological Investigations of Hydrogel Formulations Based Bioactive Natural Agents Against Some Common Phytopathogens of Phaseolus vulgaris L. and Seed Germination. J Biol Res 2020. [DOI: 10.4081/jbr.0.9219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Recent scientific research has manipulated the use of hydrogel in seed coating technology based on synthetic and chemical additives. The current study has been carried out to evaluate the performance of new seed coating formulations containing hydrogel based on natural substances or microorganisms on seed germination and controlling some common diseases of Phaseolus vulgaris L. New formulations have been prepared as single mixtures of hydrogel with the following bioactive substances i) oregano essential oil (org EO), ii) ornithine lipid (OL) and two microorganisms i) Burkholderia gladioli and ii) Trichoderma harzianum (T22). Results revealed that, the hydrogel formulation based org EO showed the highest significant activity against the majority of the tested phytopathogens in a dose dependent manner. Regarding the antagonistic microbial activity, results showed that hydrogel formulations based T. harzianum T22 and B. gladioli were able to significantly reduce the growth of the majority of tested phytopathogens. In addition, the highest significant percentage of seed germination has been achieved using the formulations of B. gladioli and org EO. Regarding the disease incidence suppression assay, results explicated that org EO and OL were able to significantly inhibit the fungal disease incidence on P. vulgaris seeds steadily depending on tested concentrations. In conclusion, the use of natural bioactive substances in hydrogel formulation would greatly reduce dependence on chemical pesticides and hence decreasing the environmental pollution and the eventual harmful effects on plant, animal and human health.
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Elshafie HS, Camele I, Sofo A, Mazzone G, Caivano M, Masi S, Caniani D. Mycoremediation effect of Trichoderma harzianum strain T22 combined with ozonation in diesel-contaminated sand. Chemosphere 2020; 252:126597. [PMID: 32229361 DOI: 10.1016/j.chemosphere.2020.126597] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/09/2020] [Accepted: 03/22/2020] [Indexed: 06/10/2023]
Abstract
This study aimed to determine the ability of the fungus Trichoderma harzianum strain T22 (Th-T22) to utilize diesel fuel as a carbon source. The potential use of Th-T22 for diesel bioremediation in an artificial soil was tested by inoculating a diesel-sand mixture with a fungal mycelial suspension of Th-T22. Given the ability of ozone to degrade compounds with low biochemical reactivity, the effect of a pre- and post-ozonation was also evaluated. The survival, growth and sporulation of Th-T22 throughout the bioremediation trial were monitored in all the treatments. In the post-ozonation treatments, the biodegradation percentages of diesel removal were 70.16% and 88.35% in Th-T22-inoculated sand treated or untreated with the antibacterial streptomycin, respectively. The results showed that ozonation alone caused good removal efficiencies (41.9%) but it was much more effective if combined with Th-T22 in a post-ozonation regime, whereas pre-ozonation negatively affected the subsequent biodegradation, likely due to its disinfectant and oxidizing effect on Th-T22. The results obtained demonstrated the significant mycoremediation ability of Th-T22 in diesel-contaminated sand and its possible use as a bioremediation agent for diesel spills in polluted sites.
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Affiliation(s)
- H S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - I Camele
- School of Agricultural, Forestry, Food and Environmental Sciences (SAFE), University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy.
| | - A Sofo
- Department of European and Mediterranean Cultures: Architecture, Environment and Cultural Heritage (DiCEM), University of Basilicata, Via Lanera 20, 75100, Matera, Italy
| | - G Mazzone
- School of Engineering (SI), University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - M Caivano
- School of Engineering (SI), University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - S Masi
- School of Engineering (SI), University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - D Caniani
- School of Engineering (SI), University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
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Elshafie HS, Caputo L, De Martino L, Gruľová D, Zheljazkov VZ, De Feo V, Camele I. Biological investigations of essential oils extracted from three Juniperus species and evaluation of their antimicrobial, antioxidant and cytotoxic activities. J Appl Microbiol 2020; 129:1261-1271. [PMID: 32445616 DOI: 10.1111/jam.14723] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 01/01/2023]
Abstract
AIMS To conduct biological investigations and to evaluate the antimicrobial and antioxidant activities of the essential oils (EOs) extracted from Juniperus communis, J. scopulorum and J. horizontalis; to screen their mechanisms of action by conducting the cell membrane permeability assay (CMP); and to determine the possible cytotoxicity of the three EOs against human neuroblastoma cells (SH-SY5Y). METHODS AND RESULTS The antifungal activity was tested against four phytopathogenic fungi (Monilinia fructicola, Aspergillus niger, Penicillium expansum and Botrytis cinerea). The antibacterial activity was evaluated against two Gram-positive (G+ve) (Bacillus megaterium and Clavibacter michiganensis) and three Gram-negative (G-ve) bacterial strains (Pseudomonas fluorescens, P. syringae pv. phaseolicola and Xanthomonas campestris). Results showed that the three tested EOs have antifungal activity against M. fructicola and P. expansum and effective antibacterial activity against P. syringae pv. phaseolicola and B. megaterium. Moreover, the three EOs were evaluated for their ability to inhibit the growth of SH-SY5Y cells with MTT assay. J. communis EO was the more effective with an IC50 of 53·7 μg ml-1 . The antioxidant capacity of the three EO did not differ as measured by the DPPH assay. CONCLUSIONS The three tested juniper EOs showed promising antimicrobial and antioxidant activity and cytotoxic effects against human neuroblastoma cell line. SIGNIFICANCE AND IMPACT OF THE STUDY The outfindings from this research showed promising antimicrobial effects of the three oils against the majority of the tested phytopathogens with a potential to utilize them as natural alternatives to synthetic drugs, the cause of global environmental problems, pathogen resistance and difficulty to control many post-harvest plant diseases.
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Affiliation(s)
- H S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza, Italy
| | - L Caputo
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | - L De Martino
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | - D Gruľová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, Prešov, Slovakia
| | - V Z Zheljazkov
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, USA
| | - V De Feo
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | - I Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza, Italy
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Elshafie HS, Sadeek SA, Camele I, Mohamed AA. Biological and Spectroscopic Investigations of New Tenoxicam and 1.10-Phenthroline Metal Complexes. Molecules 2020; 25:molecules25051027. [PMID: 32106569 PMCID: PMC7179110 DOI: 10.3390/molecules25051027] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 11/17/2022] Open
Abstract
In the present work, tenoxicam (H2Ten) reacted with Mn(II), Co(II), Ni(II), Cu(II) and Zn (II) ions in the presence of 1.10-phenthroline (Phen), forming new mixed ligand metal complexes. The properties of the formed complexes were depicted by elemental analyses, infrared, electronic spectra, proton nuclear magnetic resonance (1H NMR), mass spectrometry, thermogravimetric (TGA) and differential thermogravimetric (DTG) analysis, molar conductance and magnetic moment. IR spectra demonstrated that H2Ten acted as a neutral bidentate ligand, coordinated to the metal ions via the pyridine-N and carbonyl group of the amide moiety, and Phen through the nitrogen atoms. Kinetic thermodynamics parameters activation energy (E*), enthalpy of activation (ΔH*), entropy of activation (ΔS*), Gibbs, free energy (ΔG*) associated to the complexes have been evaluated. Antibacterial screening of the compounds was carried out in vitro against Clavibacter michiganensis, Xanthomonas campestris and Bacillus megaterium. Antifungal activity was performed in vitro against Monilinia fructicola, Penicillium digitatum and Colletotrichum acutatum. The possible phytotoxic effect of the studied compounds was also investigated on Solanum lycopersicum (tomatoes) and Lepidium sativum (garden cress) seeds. The anticancer activity was screened against cell cultures of HCT-116 (human colorectal carcinoma), HepG2 (human hepatocellular carcinoma) and MCF-7 (human breast adenocarcinoma).
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Affiliation(s)
- Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy;
| | - Sadeek A. Sadeek
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt;
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy;
- Correspondence: ; Tel.: +39-0971-205544; Fax: +39-0971-205503
| | - Amira A. Mohamed
- Department of Basic Science, Zagazig Higher Institute of Engineering and Technology, Zagazig 44519, Egypt;
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Gruľová D, Caputo L, Elshafie HS, Baranová B, De Martino L, Sedlák V, Gogaľová Z, Poráčová J, Camele I, De Feo V. Thymol Chemotype Origanum vulgare L. Essential Oil as a Potential Selective Bio-Based Herbicide on Monocot Plant Species. Molecules 2020; 25:molecules25030595. [PMID: 32013272 PMCID: PMC7037002 DOI: 10.3390/molecules25030595] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 12/25/2022] Open
Abstract
Searching for new bio-based herbicides is crucial for decreasing chemical pollution, protecting the environment, and sustaining biodiversity. Origanum vulgare is considered a promising source of essential oil with herbicidal effect. The mode of action is not known. The present study focused on (1) comparison of phytotoxic activity of Origanum vulgare EO on monocot (Triticum aestivum and Hordeum vulgare) and dicot species (Lepidium sativum and Sinapis alba); (2) and evaluating other antimicrobial biological activities against phytopatogen bacteria (Clavibacter michiganensis, Pseudomonas syringae pv. phaseolicola, Pseudomonas savastanoi, and Xanthomonas campestris); antifungal activity against Monilinia fructicola, Aspergillus niger, Penicillium expansum, and Botrytis cinerea; cytotoxic activity and antioxidant activity. According to the GC/MS analyses, the EO belongs to the thymol chemotype O. vulgare with its high content of thymol (76%). Germination of all four species was not influenced by EO. The phytotoxic effect was statistically significant in the monocot species, while in the dicot species the opposite was observed-a stimulation effect, which was also statistically significant. Strong biological activity of O. vulgare EO was noted on all phytopatogen bacteria and fungi in the highest dose. Cytotoxic activity showed an IC50 = 50.5 μg/mL. Antioxidant activity showed an IC50 = 106.6 μg/mL after 45 min experimental time. Based on the presented results, it is possible to conclude that thymol chemotype O. vulgare essential oil could be potentially used as a herbicide with selective effects on monocot plant species.
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Affiliation(s)
- Daniela Gruľová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia;
- Correspondence: ; Tel.: +421-948-030-412
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (I.C.)
| | - Beáta Baranová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia;
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Vincent Sedlák
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia; (V.S.); (Z.G.); (J.P.)
| | - Zuzana Gogaľová
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia; (V.S.); (Z.G.); (J.P.)
| | - Janka Poráčová
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia; (V.S.); (Z.G.); (J.P.)
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (I.C.)
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
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Elshafie HS, Devescovi G, Venturi V, Camele I, Bufo SA. Study of the Regulatory Role of N-Acyl Homoserine Lactones Mediated Quorum Sensing in the Biological Activity of Burkholderia gladioli pv. agaricicola Causing Soft Rot of Agaricus spp. Front Microbiol 2019; 10:2695. [PMID: 31849865 PMCID: PMC6895463 DOI: 10.3389/fmicb.2019.02695] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/06/2019] [Indexed: 01/22/2023] Open
Abstract
Many Burkholderia spp. produce in vitro secondary metabolites with relevant biological activities and potential practical applications. Burkholderia gladioli pv. agaricicola (Bga) possess promising biological activities regulated by N-Acyl homoserine lactones (N.AHLs) based quorum sensing (QS) mechanism. In the current study, N.AHLs-deficient (ICMP11096glad-I) and N.AHLs-complemented (ICMP11096glad-IR) mutants were constructed in which the gene coding for AHL synthase was inactivated by allelic exchange in glad I mutant strain. The aims of this research were to (i) assess the antagonistic activity of the wild type (WT) and the glad-I mutant of Bga against Bacillus megaterium (G+ve) and Escherichia coli (G-ve), (ii) screen their hydrolytic enzymes and hemolytic substances, (iii) monitor the pathogenic effect against Agaricus bisporus, and finally (iv) analyze the bioactive secondary metabolites produced by WT and mutant strain using high performance liquid chromatography (HPLC). Results showed that N.AHLs-deficient mutant exhibited high reduction of antagonistic activity against the tested microorganisms and notable reduction of chitinolytic, proteolytic and glucanolytic activities and complete absence of hemolytic activity, and the glad-IR complemented mutant was able to regain the major part of these activities. Furthermore, N.AHLs-deficient mutant strain was unable to degrade flesh cubes pseudo-tissues of A. bisporus. On the other hand, the virulence effect of complemented mutant was like to the parental WT strain. HPLC analysis revealed that some of the single components produced by WT strain were absent in N.AHLs-deficient mutant and others were highly reduced. The out-findings of the current research gave a spot into the regulatory role of N.AHLs and QS phenomenon in the biological activity of Bga bacterium.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza, Italy
| | - Giulia Devescovi
- Bacteriology Group, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Vittorio Venturi
- Bacteriology Group, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza, Italy
| | - Sabino A Bufo
- Department of Science, University of Basilicata, Potenza, Italy.,Department of Geography, Environmental Management and Energy Studies, University of Johannesburg, Johannesburg, South Africa
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Camele I, Elshafie HS, Caputo L, De Feo V. Anti-quorum Sensing and Antimicrobial Effect of Mediterranean Plant Essential Oils Against Phytopathogenic Bacteria. Front Microbiol 2019; 10:2619. [PMID: 31803159 PMCID: PMC6877472 DOI: 10.3389/fmicb.2019.02619] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022] Open
Abstract
Essential oils (EOs) are one of the most interesting natural products extracted from different aromatic plants. For centuries, EOs have been considered an essential part of the traditional pharmacopeia. Many plant EOs have been reported as possible effective alternatives for commercial pesticides, and their single constituents have been used efficiently in food preservation for their promising anti-QS activity against several food pathogenic microorganisms. The current mini review gives a general overview over the microbicide effect as well as anti-quorum sensing and the anti-biofilm formation of some common plant EOs, especially those of Lamiaceae and Verbanaceae families; these are commonly grown in the Mediterranean region and are effective against some serious food phytopathogenic bacteria.
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Affiliation(s)
- Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza, Italy
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Salerno, Italy
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Mentana A, Camele I, Mang SM, De Benedetto GE, Frisullo S, Centonze D. Volatolomics approach by HS-SPME-GC-MS and multivariate analysis to discriminate olive tree varieties infected by Xylella fastidiosa. Phytochem Anal 2019; 30:623-634. [PMID: 31020714 DOI: 10.1002/pca.2835] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/18/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Xylella fastidiosa (Xf) is a pathogenic bacterium that causes diseases in olive trees. Therefore, analytical methods for both the characterisation of the host/pathogen interaction and infection monitoring are needed. Volatile organic compounds (VOCs) are emitted by plants relate to their physiological state, therefore VOCs monitoring can assist in detecting stress or infection states before visible signs are present. OBJECTIVE In this work, the headspace-solid phase microextraction-gaschromatography-mass spectrometry (HS-SPME-GC-MS) technique was used for the first time to highlight VOCs differences between healthy and Xf-infected olive trees. METHODOLOGY VOCs from olive tree twig samples were extracted and analysed by HS-SPME-GC-MS, and hence identified by comparing the experimental linear retention indexes with the reference values and by MS data obtained from NIST library. Data were processed by principal component analysis (PCA) and analysis of variance (ANOVA). RESULTS The HS-SPME step was optimised in terms of adsorbent phase and extraction time. HS-SPME-GC-MS technique was applied to the extraction and analysis of VOCs of healthy and Xf-infected olive trees. More than 100 compounds were identified and the differences between samples were evidenced by the multivariate analysis approach. The results showed the marked presence of methyl esters in Xf-infected samples, suggesting their probable involvement in the mechanism of diffusible signal factor. CONCLUSION The proposed approach represents an easy and solvent-free method to evaluate the presence of Xf in olive trees, and to evidence volatiles produced by host/pathogen interactions that could be involved in the defensive mechanism of the olive tree and/or in the infective action of Xf.
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Affiliation(s)
- Annalisa Mentana
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente, Università degli Studi di Foggia, Via Napoli, Foggia, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell'Ateneo Lucano, Potenza, Italy
| | - Stefania M Mang
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell'Ateneo Lucano, Potenza, Italy
| | | | - Salvatore Frisullo
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente, Università degli Studi di Foggia, Via Napoli, Foggia, Italy
| | - Diego Centonze
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente, Università degli Studi di Foggia, Via Napoli, Foggia, Italy
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Della Pepa T, Elshafie HS, Capasso R, De Feo V, Camele I, Nazzaro F, Scognamiglio MR, Caputo L. Antimicrobial and Phytotoxic Activity of Origanum heracleoticum and O. majorana Essential Oils Growing in Cilento (Southern Italy). Molecules 2019; 24:E2576. [PMID: 31315175 PMCID: PMC6680421 DOI: 10.3390/molecules24142576] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/10/2019] [Accepted: 07/14/2019] [Indexed: 11/29/2022] Open
Abstract
There is a growing interest in a potential use of essential oils (EOs) as a replacement for traditional pesticides and herbicides. The aims of this study were to: (i) Identify the chemical composition of the two EOs derived from Origanum heracleoticum L. and O. majorana L., (ii) evaluate the in vitro antifungal activity of the EOs against some postharvest phytopathogens (Botrytis cinerea, Penicillium expansum, Aspergillus niger and Monilinia fructicola), (iii) evaluate the in vitro antibacterial activity against Bacillus megaterium, Clavibacter michiganensis, Xanthomonas campestris, Pseudomonas fluorescens and P. syringae pv. phaseolicola, (iv) evaluate the effect of both studied EOs on the spore germination percentage and their minimum inhibitory concentration (MIC) against M. fructicola, and (v) study the possible phytotoxicity of the two EOs and their major constituents, carvacrol for O. heracleoticum and terpinen-4-ol for O. majorana, against tha germination and initial radicle growth of radish, lettuce, garden cress and tomato. The two EOs demonstrated promising in vitro antimicrobial and antifungal activities against all tested microorganisms. EOs showed high inhibition of spore germination percentage at the minimal inhibitory concentration of 500 and 2000 µg/mL, respectively. Moreover, both germination and radical elongation of selected plant species were sensitive to the oils.
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Affiliation(s)
- Teresa Della Pepa
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Napoli, Italy
| | - Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici, Napoli, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy.
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Filomena Nazzaro
- Institute of Food Science, CNR-ISA, Via Roma 64, 83100 Avellino, Italy
| | - Maria Rosa Scognamiglio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
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Camele I, Elshafie HS, Caputo L, Sakr SH, De Feo V. Bacillus mojavensis: biofilm formation and biochemical investigation of its bioactive metabolites. J Biol Res 2019. [DOI: 10.4081/jbr.2019.8296] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bacillus mojavensis is an endophytic bacterium which has been reported to have fungicidal effect against some phytopathogens. Bioactive secondary metabolites produced by B. mojavensis could have promising applications in agricultural, food industry and clinical fields. The current research has been conducted to: i) evaluate the antagonistic effect of B. mojavensis isolate against some phytopathogens; ii) characterize chemically the principal bioactive substances produced by the studied isolate of B. mojavensis using Gas Chromatography-Mass Spectroscopy (GC-MS); iii) evaluate its ability to produce a biofilm using ELISA technique. Results showed that the studied isolate has an antagonistic activity against the majority of tested microorganisms. Results showed also that the studied isolated produced a biofilm in Supplemented Luria-Bertani Casamino acid (SLB) and Minimal Mineral (MM) medium. The substantial attached growth in SLB was significantly higher than MM media. GC-MS analysis revealed the presence of 9 compounds accounting 87.8% of the total extract, where oxygenated monoterpenes are the main constituents.
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Elshafie HS, Gruľová D, Baranová B, Caputo L, De Martino L, Sedlák V, Camele I, De Feo V. Antimicrobial Activity and Chemical Composition of Essential Oil Extracted from Solidago canadensis L. Growing Wild in Slovakia. Molecules 2019; 24:molecules24071206. [PMID: 30934783 PMCID: PMC6479883 DOI: 10.3390/molecules24071206] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 11/16/2022] Open
Abstract
Plant essential oils (EOs) are one of the most relevant natural products due to their biological, medicinal, and nutritional properties. The promising biological effects of many plants EOs encourage researchers to study their biochemical properties to be used as possible natural alternatives for commercial pesticides and not only as herbal medicines. The current research has been conducted to study the microbicide effect of Solidago canadensis L. EO to control some common plant diseases caused by several postharvest phytopathogenic fungi (Monilinia fructicola, Botrytis cinerea, Aspergillus niger, and Penicillium expansum) in comparison with Azoxystrobin as a large spectrum fungicide. The antibacterial activity has been carried out against some phytopathogenic bacteria (Bacillus megaterium and Clavibacter michiganensis (G+ve) and Xanthomonas campestris, Pseudomonas fluorescens, and Pseudomonas syringae pv. phaseolicola (G−ve)) compared to the synthetic antibiotic Tetracycline. Minimum inhibitory concentration was carried out to determine the lowest effective EO dose using a 96-well microplate. The cell membrane permeability was also evaluated by measuring the electric conductivity (EC) to examine the possible mechanisms of action of S. canadensis EO. Chemical characterization of EO has been carried out using gas chromatography and mass spectrometry (GC-MS). Thirty-two identified components in S. canadensis EO presented 97.7% of total compounds in EO. The principal compounds were identified as germacrene D (34.9%), limonene (12.5%), α-pinene (11.6%), β-elemene (7.1%), and bornyl acetate (6.3%). In addition, S. canadensis EO demonstrated promising in vitro antimicrobial activities against the majority of tested phytopathogens at all tested concentrations.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy.
| | - Daniela Gruľová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia.
| | - Beáta Baranová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia.
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy.
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy.
| | - Vincent Sedlák
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia.
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy.
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy.
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Elshafie HS, Sakr SH, Sadeek SA, Camele I. Biological Investigations and Spectroscopic Studies of New Moxifloxacin/Glycine-Metal Complexes. Chem Biodivers 2019; 16:e1800633. [PMID: 30629800 DOI: 10.1002/cbdv.201800633] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/03/2019] [Indexed: 11/06/2022]
Abstract
Two novel ligand-metal complexes were prepared through the reaction of Zn(II) and Sn(II) with moxifloxacin (MOX) in the presence of glycine (Gly) to investigate their biological activities. IR, UV/VIS and 1 H-NMR analysis have been carried out for insuring the chelation process. Results suggested that MOX and Gly react with the metal ions through the carbonyl oxygen atom and the oxygen atom of the carboxylic group of MOX and Gly. The antimicrobial activity was carried out against some common bacterial and fungal pathogens and the radical scavenging activity (RSA%) was evaluated using DPPH and ABTS methods. Phytotoxic effect of the prepared complexes was evaluated in vitro against Raphanus raphanistrum and Lepidium sativum. Hemolytic activity was tested against cell membrane of erythrocytes. Results showed that the two prepared complexes exhibited high antimicrobial activity against all tested phytopathogens and no significant phytotoxic effect has been observed. Only MOX-Zn(II) complex showed moderate hemolysis at 100 % concentration.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - Shimaa H Sakr
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100, Potenza, Italy.,Department of Chemistry, Faculty of Science, Zagazig University, 44511, Zagazig, Egypt
| | - Sadeek A Sadeek
- Department of Chemistry, Faculty of Science, Zagazig University, 44511, Zagazig, Egypt
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100, Potenza, Italy
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Sofo A, Elshafie HS, Scopa A, Mang SM, Camele I. Impact of airborne zinc pollution on the antimicrobial activity of olive oil and the microbial metabolic profiles of Zn-contaminated soils in an Italian olive orchard. J Trace Elem Med Biol 2018; 49:276-284. [PMID: 29482995 DOI: 10.1016/j.jtemb.2018.02.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 02/14/2018] [Accepted: 02/16/2018] [Indexed: 01/02/2023]
Abstract
The growing of microbial resistance leads to a great interest about some natural alternatives to synthetic compounds. This study was carried out in two olive orchards (Olea europaea L., cv. Coratina) South Italy (Basilicata region), one located in a polluted area near a fertilizers factory releasing Zn and the other in a control unpolluted site, both managed with similar cultivation techniques. Olive oil samples were studied from both areas during 2014 and 2015. The soil microbiological status of the polluted and unpolluted orchards has been characterized and the antimicrobial effects of olive oils extracted from polluted plants (PP) and control plants (CP) against some phytopathogens have been explored. Results showed that the antibacterial activity of PP oil was significantly higher than CP and this could be due to the high content of some phenolic compounds elicited by air and soil Zn pollution (especially in the layer 0-20 cm). There is no detectable antifungal activity of the studied oils. The metabolic activity (both total and for each carbon substrate group), diversity and evenness of PP soil bacterial communities were significantly different from CP soil, while the effects of soil depth was negligible. The same parameters measured on soil fungal communities are lower in PP soil at 0-20 cm soil depth. The current research clarified the impact of atmospheric Zn pollution on the antimicrobial activity of olive oil and the soil microbial metabolic profiles. The bioactive substances extracted from olive oils growing in Zn-polluted area might be used as antibiotics.
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Affiliation(s)
- Adriano Sofo
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Antonio Scopa
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Stefania M Mang
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 10, 85100 Potenza, Italy.
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Sakr SH, Elshafie HS, Camele I, Sadeek SA. Synthesis, Spectroscopic, and Biological Studies of Mixed Ligand Complexes of Gemifloxacin and Glycine with Zn(II), Sn(II), and Ce(III). Molecules 2018; 23:molecules23051182. [PMID: 29762531 PMCID: PMC6100317 DOI: 10.3390/molecules23051182] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/11/2018] [Accepted: 05/11/2018] [Indexed: 11/18/2022] Open
Abstract
Three novel mixed ligand metal complexes have been synthesized by the reaction of Zn(II), Sn(II), and Ce(III) with gemifloxacin (GMFX) in the presence of glycine (Gly) (1:1:1 molar ratio). The coordination possibility of the two ligands toward metal ions has been proposed in the light of elemental analysis, molar conductance, spectral infrared (IR), ultraviolet-visible (UV-Vis) and proton-nuclear magnetic resonance (1H NMR), and magnetic studies. Results suggest that GMFX and Gly interact with the metal ions as bidentate ligands. Electronic and magnetic data proposed the octahedral structure for all complexes under investigation. Antibacterial screening of the compounds was carried out in vitro against two Gram-positive bacteria, Clavibacter michiganensis and Bacillus megaterium, and two Gram-negative bacteria, Escherichia coli and Xanthomonas campestris. Antifungal activity was performed in vitro against Rhizoctonia solani, Sclerotinia sclerotiorum, Aspergillus niger, Botrytis cinerea, and Penicillium digitatum. The ligands and their complexes were also screened for their antioxidant activity. Results showed that some metal complexes showed more biological efficiency than the parent GMFX drug.
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Affiliation(s)
- Shimaa H Sakr
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt.
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 85100 Potenza, Italy.
| | - Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 85100 Potenza, Italy.
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano, 85100 Potenza, Italy.
| | - Sadeek A Sadeek
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt.
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Elshafie HS, Aliberti L, Amato M, De Feo V, Camele I. Chemical composition and antimicrobial activity of chia (Salvia hispanica L.) essential oil. Eur Food Res Technol 2018. [DOI: 10.1007/s00217-018-3080-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Elshafie HS, Viggiani L, Mostafa MS, El-Hashash MA, Camele I, Bufo SA. Biological activity and chemical identification of ornithine lipid produced by Burkholderia gladioli pv. agaricicola ICMP 11096 using LC-MS and NMR analyses. ACTA ACUST UNITED AC 2018. [DOI: 10.4081/jbr.2017.6534] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Lipoamino acids (LAs) have been isolated from bacterial species and are included among the most important microbial secondary metabolites. Some synthetic LAs are being increasingly used in pharmaceutical applications such as ornithine lipid (OL) which is present in relatively large amounts in some G-ve bacteria. Many Burkholderia spp. produce in vitro secondary metabolites with lipodepsipeptide nature and have showed relevant biological activities and potential practical applications. The purposes of this research were i) to study the antibacterial activity of cell-free culture filtrate of B. gladioli pv. agaricicola strain ICMP 11096; ii) HPLC fractionation and antibacterial evaluation of isolated compounds; iii) Finally, the identification by LC-MS and NMR analysis of the principle bioactive compound produced by the bacterium. Results showed that the cell-free culture filtrate has a promising antibacterial activity against the two studied target microorganisms. In addition, HPLC fractionation demonstrated the presence of five single bioactive compounds produced by the bacterium and their antibacterial activity stated that peak no. 2 is the most bioactive one against B. megaterium and E. coli. Successively, the principal bioactive compound was identified by LC-MS and ¹H NMR as OL with mass spectrum (m/z) 719. This research is considered the first report of isolation and chemical identification of OL compound isolated from B. gladioli pv. agaricicola ICMP 11096.
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Elshafie HS, Sakr S, Bufo SA, Camele I. An attempt of biocontrol the tomato-wilt disease caused by Verticillium dahliae using Burkholderia gladioli pv. agaricicola and its bioactive secondary metabolites. Int J Plant Biol 2017. [DOI: 10.4081/pb.2017.7263] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
There is a great interest in discovering new microbial natural biocides such as microbial secondary metabolites to reduce the environmental pollution due to the excessive use of synthetic pesticides. Verticillium wilt, caused by the soil-borne Verticillium dahliae, is a widespread disease in tomato growing in many parts of the world. Burkholderia gladioli pv. agaricicola produces some antimicrobial substances and extracellular hydrolytic enzymes which exhibited promising antimicrobial activity towards several phytopathogens. The aims of the current research are to assess in vitro fungicidal effect of 4 strains of B. gladioli pv. agaricicola (ICMP11096, 11097, 12220 and 12322) against V. dahliae using culture or cell-free culture filtrate. In situ assay was performed to evaluate the biocontrol effect of the most efficient bacterial strain on wilt disease caused by V. dahliae in tomato plants. Results demonstrated that the studied bacterial strain ICMP12322 exerted the highest in vitro antifungal activity against V. dahliae which correlated with its ability to produce extracellular hydrolytic enzymes. Furthermore, in situ results showed that the selected bacterial strain significantly minimized the disease incidence.
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Elshafie HS, Camele I. An Overview of the Biological Effects of Some Mediterranean Essential Oils on Human Health. Biomed Res Int 2017; 2017:9268468. [PMID: 29230418 PMCID: PMC5694587 DOI: 10.1155/2017/9268468] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/20/2017] [Accepted: 10/03/2017] [Indexed: 11/18/2022]
Abstract
Essential oils (EOs), extracted from aromatic plants, are interesting natural products and represent an important part of the traditional pharmacopeia. The use of some EOs as alternative antimicrobial and pharmaceutical agents has attracted considerable interest recently. Most of the EOs and their single constituents have been reported to inhibit several phytopathogens, human pathogens, and insects as well as their effective uses in food and pharmaceutical industries. The current review discussed the chemical composition and bioactivity of some important EOs extracted from some Mediterranean plants and their principal bioactive single constituents. Information has been furnished on the mechanisms, mode of actions, and factors affecting the bioactivity of some single constituents from different Mediterranean plant EOs. The current review gives an insight into some common plant EOs belonging to Lamiaceae, Apiaceae, Rutaceae, and Verbenaceae families commonly growing in Mediterranean region. Further information has been provided about the medical uses of some EOs for several human diseases covering the pharmacological effects (anti-inflammatory, antioxidant, and anticarcinogenic). The antimicrobial effects have been also considered in the current review. Although plant EOs are considered promising natural alternatives for many chemical drugs, they still need more specific research for wide application especially in food and pharmaceutical industries.
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Affiliation(s)
- Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
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Elshafie HS, Armentano MF, Carmosino M, Bufo SA, De Feo V, Camele I. Cytotoxic Activity of Origanum Vulgare L. on Hepatocellular Carcinoma cell Line HepG2 and Evaluation of its Biological Activity. Molecules 2017; 22:molecules22091435. [PMID: 28867805 PMCID: PMC6151800 DOI: 10.3390/molecules22091435] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/22/2017] [Accepted: 08/29/2017] [Indexed: 12/19/2022] Open
Abstract
The potential of plant essential oils (EOs) in anticancer treatment has recently received many research efforts to overcome the development of multidrug resistance and their negative side effects. The aims of the current research are to study (i) the cytotoxic effect of the crude EO extracted from Origanum vulgare subsp hirtum and its main constituents (carvacrol, thymol, citral and limonene) on hepatocarcinoma HepG2 and healthy human renal cells HEK293; (ii) the antibacterial and phytotoxic activities of the above EO and its main constituents. Results showed that cell viability percentage of treated HepG2 by EO and its main constituents was significantly decreased when compared to untreated cells. The calculated inhibition concentration (IC50) values for HepG2 were lower than healthy renal cells, indicating the sort of selectivity of the studied substances. Citral is not potentially recommended as an anticancer therapeutic agent, since there are no significant differences between IC50 values against both tested cell lines. Results showed also that oregano EO and its main constituents have a significant antibacterial activity and a moderate phytotoxic effect. The current research verified that oregano EO and its main constituents could be potentially utilized as anticancer therapeutic agents.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza 85100, Italy.
| | - Maria F Armentano
- Department of Sciences, University of Basilicata, Potenza 85100, Italy.
| | - Monica Carmosino
- Department of Sciences, University of Basilicata, Potenza 85100, Italy.
| | - Sabino A Bufo
- Department of Sciences, University of Basilicata, Potenza 85100, Italy.
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Salerno 84084, Italy.
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Potenza 85100, Italy.
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Elshafie HS, Sakr S, Mang SM, Belviso S, De Feo V, Camele I. Antimicrobial Activity and Chemical Composition of Three Essential Oils Extracted from Mediterranean Aromatic Plants. J Med Food 2016; 19:1096-1103. [PMID: 27792456 DOI: 10.1089/jmf.2016.0066] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
There is a growing interest in essential oils (EOs) as possible alternatives for traditional chemical pesticides. This study was carried out to characterize the chemical composition of the three EOs extracted from Verbena officinalis, Majorana hortensis, and Salvia officinalis using gas chromatography (GC) and GC-mass spectrometry (GC-MS) and to evaluate in vitro their efficacy against some phyto or human pathogens. The antifungal activity was investigated against Colletotrichum acutatum and Botrytis cinerea in comparison with Azoxystrobin as a large spectrum fungicide. Antibacterial activity was evaluated against Bacillus megaterium, Bacillus mojavensis, and Clavibacter michiganensis (G+ve) and Escherichia coli, Xanthomonas campestris, Pseudomonas savastanoi, and P. syringae pv. phaseolicola (G-ve) compared to a synthetic antibiotic tetracycline. Minimum inhibitory concentration was evaluated against the above tested fungi using 96-well microplate method. Results showed that the chemical structure of the three studied EOs was mainly composed of monoterpene compounds and all oils belong to the chemotype carvacrol/thymol. Results of GC analysis identified 64 compounds, which were identified based on their mass to charge ratio. Furthermore, the different concentrations of studied EOs inhibited the growth of tested microorganism in a dose-dependent manner.
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Affiliation(s)
- Hazem S Elshafie
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Shimaa Sakr
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Stefania M Mang
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Sandra Belviso
- 2 Department of Science, University of Basilicata , Potenza, Italy
| | - Vincenzo De Feo
- 3 Department of Pharmacy, University of Salerno , Fisciano Salerno, Italy
| | - Ippolito Camele
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
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Cosentino C, Labella C, Elshafie HS, Camele I, Musto M, Paolino R, D'Adamo C, Freschi P. Effects of different heat treatments on lysozyme quantity and antimicrobial activity of jenny milk. J Dairy Sci 2016; 99:5173-5179. [PMID: 27157571 DOI: 10.3168/jds.2015-10702] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/27/2016] [Indexed: 11/19/2022]
Abstract
Thermal treatments are used to improve milk microbial safety, shelf life, and biological activity of some of its components. However, thermal treatments can reduce the nutritional quality of milk, affecting the molecular structure of milk proteins, such as lysozyme, which is a very important milk component due to its antimicrobial effect against gram-positive bacteria. Jenny milk is characterized by high lysozyme content. For this reason, in the last few years, it has been used as an antimicrobial additive in dairy products as an alternative to hen egg white lysozyme, which can cause allergic reactions. This study aimed to investigate the effect of pasteurization and condensation on the concentration and antimicrobial activity of lysozyme in jenny milk. Furthermore, lysozyme quantity and activity were tested in raw and pasteurized milk after condensation at 40 and 20% of the initial volume. Reversed-phase HPLC was performed under fluorescence detection to monitor lysozyme in milk samples. We evaluated the antimicrobial activity of the tested milk against Bacillus megaterium, Bacillus mojavensis, Clavibacter michiganensis, Clostridium tyrobutyricum, Xanthomonas campestris, and Escherichia coli. Condensation and pasteurization did not affect the concentration or antimicrobial activity of lysozyme in jenny milk, except for B. mojaventis, which showed resistance to lysozyme in milk samples subjected to heat treatments. Moreover, lysozyme in jenny milk showed antimicrobial activity similar to synthetic antibiotics versus some gram-positive strains and also versus the gram-negative strain X. campestris.
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Affiliation(s)
- C Cosentino
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy.
| | - C Labella
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - H S Elshafie
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - I Camele
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - M Musto
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - R Paolino
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - C D'Adamo
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - P Freschi
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
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35
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Elshafie HS, Racioppi R, Bufo SA, Camele I. In vitro study of biological activity of four strains of Burkholderia gladioli pv. agaricicola and identification of their bioactive metabolites using GC-MS. Saudi J Biol Sci 2016; 24:295-301. [PMID: 28149165 PMCID: PMC5272957 DOI: 10.1016/j.sjbs.2016.04.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 03/31/2016] [Accepted: 04/24/2016] [Indexed: 11/08/2022] Open
Abstract
This research was carried out to study in vitro antibacterial activity of 4 strains of Burkholderia gladioli pv. agaricicola (Bga) against G+ve Bacillus megaterium and G−ve Escherichia coli, haemolytic activity against the cell membrane of erythrocytes, the production of extracellular hydrolytic enzymes and finally, the pathogenicity against Agaricus bisporus flesh blocks. Chemical structure of bioactive substances of the most bioactive strain (ICMP 11096) was established using gas chromatography–mass spectrometry (GC–MS). All the studied Bga strains inhibited the growth of the two tested bacteria although some growing substrates negatively influenced the antimicrobial substance production. The same Bga strains showed highly haemolytic activity and were able to produce 3 hydrolytic enzymes, i.e. chitinase, glucanase and protease. In pathogenicity assays, the considered Bga strains resulted virulent for A. bisporus. The GC–MS for compounds from Bga ICMP 11096 were compatible with the structure of two bioactive fatty acids identified as methyl stearate and ethanol 2-butoxy phosphate with mass spectrum m/e 298 and 398, respectively.
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Affiliation(s)
- Hazem S Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale Ateneo Lucano, 85100 Potenza, Italy
| | - Rocco Racioppi
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano, 85100 Potenza, Italy
| | - Sabino A Bufo
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano, 85100 Potenza, Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale Ateneo Lucano, 85100 Potenza, Italy
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36
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Mang SM, Frisullo S, Elshafie HS, Camele I. Diversity Evaluation of Xylella fastidiosa from Infected Olive Trees in Apulia (Southern Italy). Plant Pathol J 2016; 32:102-11. [PMID: 27147930 PMCID: PMC4853100 DOI: 10.5423/ppj.oa.08.2015.0153] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/14/2015] [Accepted: 12/14/2015] [Indexed: 05/06/2023]
Abstract
Olive culture is very important in the Mediterranean Basin. A severe outbreak of Olive Quick Decline Syndrome (OQDS) caused by Xylella fastidiosa infection was first noticed in 2013 on olive trees in the southern part of Apulia region (Lecce province, southern Italy). Studies were carried out for detection and diversity evaluation of the Apulian strain of Xylella fastidiosa. The presence of the pathogen in olive samples was detected by PCR amplifying the 16S rDNA, gyrase B subunit (gyrB) and HL hypothetical protein genes and single nucleotide polymorphisms (SNPs) assessment was performed to genotype X. fastidiosa. Twelve SNPs were recorded over gyrB and six SNPs were found for HL gene. Less variations were detected on 16S rDNA gene. Only gyrB and HL provided sufficient information for dividing the Apulian X. fastidiosa olive strains into subspecies. Using HL nucleotide sequences was possible to separate X. fastidiosa into subspecies pauca and fastidiosa. Whereas, nucleotide variation present on gyrB gene allowed separation of X. fastidiosa subsp. pauca from the other subspecies multiplex and fastidiosa. The X. fastidiosa strain from Apulia region was included into the subspecies pauca based on three genes phylogenetic analyses.
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Affiliation(s)
- Stefania M. Mang
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100, Potenza,
Italy
| | - Salvatore Frisullo
- Department of Agricultural, Food and Environmental Sciences, University of Foggia, Via Napoli 25, 71121, Foggia,
Italy
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100, Potenza,
Italy
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100, Potenza,
Italy
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Elshafie HS, Ghanney N, Mang SM, Ferchichi A, Camele I. An In Vitro Attempt for Controlling Severe Phytopathogens and Human Pathogens Using Essential Oils from Mediterranean Plants of Genus Schinus. J Med Food 2016; 19:266-73. [PMID: 26836214 DOI: 10.1089/jmf.2015.0093] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Growing concerns about food safety and environmental protection enhanced the need for new and safe plant disease control strategies. The chemical composition of the three essential oils (EOs) extracted from leaves and fruits of Schinus terebinthifolius and leaves of Schinus molle, growing in Tunisia, was studied by GC and GC-MS. In all, 12 compounds were identified. The oils were mainly composed of terpene compounds. α-Pinene, α-phellandrene, and D-limonene were the major constituents. The aim of the current study was to evaluate the in vitro antimicrobial effectiveness of three EOs derived from plants of genus Schinus and extracted from leaves and fruits of S. terebinthifolius and leaves of S. molle. Both antifungal and antibacterial activities of the EOs were examined. The antifungal activity of the studied EOs was investigated against Colletotrichum acutatum and Botrytis cinerea in comparison with the systemic fungicide azoxystrobin used at 0.8 μL mL(-1). The antibacterial activity was evaluated against three strains of Gram-positive (G+ve) bacteria (Bacillus megaterium, Bacillus mojavensis and Clavibacter michiganensis) and four strains of Gram-negative (G-ve) bacteria (Escherichia coli, Xanthomonas campestris, Pseudomonas savastanoi, and Pseudomonas syringae pv. phaseolicola) compared with the synthetic antibiotic tetracycline at a concentration of 1600 μg mL(-1). The minimum inhibitory concentration of the studied EOs has been evaluated against the above microorganisms using the 96-well microplate method. Tested microorganisms exhibited different levels of sensitivity to each tested EO. All investigated EOs reduced the fungal mycelial growth when used at low concentrations from 250 to 1000 ppm and from 2000 to 8000 ppm against C. acutatum and B. cinerea, respectively. Higher concentrations of the same EOs exhibited a fungicidal effect against both mitosporic fungi. The EO extracted from leaves of S. terebinthifolius significantly inhibited the growth of tested bacterial strains. Nevertheless, E. coli showed a weak resistance toward the same EO and a high resistance toward the other two tested EOs. Finally, P. savastanoi and P. syringae pv. phaseolicola showed a high resistance toward all tested EOs.
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Affiliation(s)
- Hazem Salaheldin Elshafie
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Nadia Ghanney
- 2 Institut National Agronomique de Tunisie, 1002 Tunis and Arid Land Institute , Medenine, Tunisia
| | - Stefania Mirela Mang
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Ali Ferchichi
- 2 Institut National Agronomique de Tunisie, 1002 Tunis and Arid Land Institute , Medenine, Tunisia
| | - Ippolito Camele
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
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38
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Elshafie HS, Mancini E, Sakr S, De Martino L, Mattia CA, De Feo V, Camele I. Antifungal Activity of Some Constituents of Origanum vulgare L. Essential Oil Against Postharvest Disease of Peach Fruit. J Med Food 2015; 18:929-34. [PMID: 25599273 DOI: 10.1089/jmf.2014.0167] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Plant essential oils (EOs) can potentially replace synthetic fungicides in the management of postharvest fruit and vegetable diseases. The aim of this study was to evaluate in vitro and in vivo effectiveness of thymol, carvacrol, linalool, and trans-caryophyllene, single constituents of the EO of Origanum vulgare L. ssp. hirtum against Monilinia laxa, M. fructigena, and M. fructicola, which are important phytopathogens and causal agents of brown rot of pome and stone fruits in pre- and postharvest. Moreover, the possible phytotoxic activity of these constituents was assessed and their minimum inhibitory concentration (MIC) was determined. In vitro experiment indicated that thymol and carvacrol possess the highest antifungal activity. Results of in vivo trials confirmed the strong efficacy of thymol and carvacrol against brown rot of peach fruits. The thymol MIC resulted to be 0.16 μg/μL against M. laxa and M. fructigena and 0.12 μg/μL against M. fructicola, whereas for carvacrol they were 0.02 μg/μL against the first two Monilinia species and 0.03 μg/μL against the third. Results of this study indicated that thymol and carvacrol could be used after suitable formulation for controlling postharvest fruit diseases caused by the three studied Monilinia species.
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Affiliation(s)
- Hazem S Elshafie
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Emilia Mancini
- 2 Department of Pharmacy, University of Salerno , Salerno, Italy
| | - Shimaa Sakr
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
| | - Laura De Martino
- 2 Department of Pharmacy, University of Salerno , Salerno, Italy
| | | | - Vincenzo De Feo
- 2 Department of Pharmacy, University of Salerno , Salerno, Italy
| | - Ippolito Camele
- 1 School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata , Potenza, Italy
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Crous P, Shivas R, Quaedvlieg W, van der Bank M, Zhang Y, Summerell B, Guarro J, Wingfield M, Wood A, Alfenas A, Braun U, Cano-Lira J, García D, Marin-Felix Y, Alvarado P, Andrade J, Armengol J, Assefa A, den Breeÿen A, Camele I, Cheewangkoon R, De Souza J, Duong T, Esteve-Raventós F, Fournier J, Frisullo S, García-Jiménez J, Gardiennet A, Gené J, Hernández-Restrepo M, Hirooka Y, Hospenthal D, King A, Lechat C, Lombard L, Mang S, Marbach P, Marincowitz S, Marin-Felix Y, Montaño-Mata N, Moreno G, Perez C, Pérez Sierra A, Robertson J, Roux J, Rubio E, Schumacher R, Stchigel A, Sutton D, Tan Y, Thompson E, van der Linde E, Walker A, Walker D, Wickes B, Wong P, Groenewald J. Fungal Planet description sheets: 214-280. Persoonia 2014; 32:184-306. [PMID: 25264390 PMCID: PMC4150077 DOI: 10.3767/003158514x682395] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 05/19/2014] [Indexed: 11/25/2022]
Abstract
Novel species of microfungi described in the present study include the following from South Africa: Cercosporella dolichandrae from Dolichandra unguiscati, Seiridium podocarpi from Podocarpus latifolius, Pseudocercospora parapseudarthriae from Pseudarthria hookeri, Neodevriesia coryneliae from Corynelia uberata on leaves of Afrocarpus falcatus, Ramichloridium eucleae from Euclea undulata and Stachybotrys aloeticola from Aloe sp. (South Africa), as novel member of the Stachybotriaceae fam. nov. Several species were also described from Zambia, and these include Chaetomella zambiensis on unknown Fabaceae, Schizoparme pseudogranati from Terminalia stuhlmannii, Diaporthe isoberliniae from Isoberlinia angolensis, Peyronellaea combreti from Combretum mossambiciensis, Zasmidium rothmanniae and Phaeococcomyces rothmanniae from Rothmannia engleriana, Diaporthe vangueriae from Vangueria infausta and Diaporthe parapterocarpi from Pterocarpus brenanii. Novel species from the Netherlands include: Stagonospora trichophoricola, Keissleriella trichophoricola and Dinemasporium trichophoricola from Trichophorum cespitosum, Phaeosphaeria poae, Keissleriella poagena, Phaeosphaeria poagena, Parastagonospora poagena and Pyrenochaetopsis poae from Poa sp., Septoriella oudemansii from Phragmites australis and Dendryphion europaeum from Hedera helix (Germany) and Heracleum sphondylium (the Netherlands). Novel species from Australia include: Anungitea eucalyptorum from Eucalyptus leaf litter, Beltraniopsis neolitseae and Acrodontium neolitseae from Neolitsea australiensis, Beltraniella endiandrae from Endiandra introrsa, Phaeophleospora parsoniae from Parsonia straminea, Penicillifer martinii from Cynodon dactylon, Ochroconis macrozamiae from Macrozamia leaf litter, Triposporium cycadicola, Circinotrichum cycadis, Cladosporium cycadicola and Acrocalymma cycadis from Cycas spp. Furthermore, Vermiculariopsiella dichapetali is described from Dichapetalum rhodesicum (Botswana), Ophiognomonia acadiensis from Picea rubens (Canada), Setophoma vernoniae from Vernonia polyanthes and Penicillium restingae from soil (Brazil), Pseudolachnella guaviyunis from Myrcianthes pungens (Uruguay) and Pseudocercospora neriicola from Nerium oleander (Italy). Novelties from Spain include: Dendryphiella eucalyptorum from Eucalyptus globulus, Conioscypha minutispora from dead wood, Diplogelasinospora moalensis and Pseudoneurospora canariensis from soil and Inocybe lanatopurpurea from reforested woodland of Pinus spp. Novelties from France include: Kellermania triseptata from Agave angustifolia, Zetiasplozna acaciae from Acacia melanoxylon, Pyrenochaeta pinicola from Pinus sp. and Pseudonectria rusci from Ruscus aculeatus. New species from China include: Dematiocladium celtidicola from Celtis bungeana, Beltrania pseudorhombica, Chaetopsina beijingensis and Toxicocladosporium pini from Pinus spp. and Setophaeosphaeria badalingensis from Hemerocallis fulva. Novel genera of Ascomycetes include Alfaria from Cyperus esculentus (Spain), Rinaldiella from a contaminated human lesion (Georgia), Hyalocladosporiella from Tectona grandis (Brazil), Pseudoacremonium from Saccharum spontaneum and Melnikomyces from leaf litter (Vietnam), Annellosympodiella from Juniperus procera (Ethiopia), Neoceratosperma from Eucalyptus leaves (Thailand), Ramopenidiella from Cycas calcicola (Australia), Cephalotrichiella from air in the Netherlands, Neocamarosporium from Mesembryanthemum sp. and Acervuloseptoria from Ziziphus mucronata (South Africa) and Setophaeosphaeria from Hemerocallis fulva (China). Several novel combinations are also introduced, namely for Phaeosphaeria setosa as Setophaeosphaeria setosa, Phoma heteroderae as Peyronellaea heteroderae and Phyllosticta maydis as Peyronellaea maydis. Morphological and culture characteristics along with ITS DNA barcodes are provided for all taxa.
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Affiliation(s)
- P.W. Crous
- CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - R.G. Shivas
- Plant Pathology Herbarium, Department of Agriculture, Forestry and Fisheries, Dutton Park 4102, Queensland, Australia
| | - W. Quaedvlieg
- CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - M. van der Bank
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Y. Zhang
- Institute of Microbiology, Beijing Forestry University, P.O. Box 61, Beijing 100083, PR China
| | - B.A. Summerell
- Royal Botanic Gardens and Domain Trust, Mrs. Macquaries Road, Sydney, NSW 2000, Australia
| | - J. Guarro
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - M.J. Wingfield
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Private Bag X20, Pretoria 0028, South Africa
| | - A.R. Wood
- ARC – Plant Protection Research Institute, P. Bag X5017, Stellenbosch 7599, South Africa
| | - A.C. Alfenas
- Department of Plant Pathology, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil
| | - U. Braun
- Martin-Luther-Universität, Institut für Biologie, Bereich Geobotanik und Botanischer Garten, Herbarium, Neuwerk 21, 06099 Halle (Saale), Germany
| | - J.F. Cano-Lira
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - D. García
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - Y. Marin-Felix
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - P. Alvarado
- ALVALAB, C/ La Rochela nº 47, E-39012, Santander, Spain
| | - J.P. Andrade
- Recôncavo da Bahia Federal University, Bahia, Brazil
| | - J. Armengol
- Instituto Agroforestal Mediterráneo, Universitat Politècnica de Valencia, Camino de Vera S/N,46022 Valencia, Spain
| | - A. Assefa
- Department of Biology, Madawalabu University, P.O. Box 247, Bale Robe, Ethiopia
| | - A. den Breeÿen
- ARC – Plant Protection Research Institute, P. Bag X5017, Stellenbosch 7599, South Africa
| | - I. Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell’Ateneo Lucano, 10, 85100 Potenza, Italy
| | - R. Cheewangkoon
- Department of Plant Pathology, Faculty of Agriculture, Chaing Mai University, Chiang Mai 50200, Thailand
| | - J.T. De Souza
- Recôncavo da Bahia Federal University, Bahia, Brazil
| | - T.A. Duong
- Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, P. Bag X20, Pretoria 0028, South Africa
| | - F. Esteve-Raventós
- Departamento de Ciencias de la Vida (Area de Botánica), Universidad de Alcalá, E-28805 Alcalá de Henares, Spain
| | | | - S. Frisullo
- Department of Agricultural, Food and Environmental Sciences, University of Foggia, Via Napoli, 25, 71100 Foggia, Italy
| | - J. García-Jiménez
- Instituto Agroforestal Mediterráneo, Universitat Politècnica de Valencia, Camino de Vera S/N,46022 Valencia, Spain
| | | | - J. Gené
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - M. Hernández-Restrepo
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - Y. Hirooka
- Department of Biology, University of Ottawa, 30 Marie-Curie, Ottawa, Ontario, K1N 6N5, Canada / Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, Ontario, K1A 0C6, Canada
| | - D.R. Hospenthal
- Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - A. King
- ARC – Plant Protection Research Institute, P. Bag X134, Queenswood 0121, South Africa
| | - C. Lechat
- Ascofrance, 64 route de Chizé, 79360 Villiers en Bois, France
| | - L. Lombard
- CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - S.M. Mang
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell’Ateneo Lucano, 10, 85100 Potenza, Italy
| | | | - S. Marincowitz
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Private Bag X20, Pretoria 0028, South Africa
| | - Y. Marin-Felix
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - N.J. Montaño-Mata
- Escuela de Ingeniería Agronómica, Departamento de Agronomía, Núcleo de Monagas, Venezuela
| | - G. Moreno
- Departamento de Ciencias de la Vida (Area de Botánica), Universidad de Alcalá, E-28805 Alcalá de Henares, Spain
| | - C.A. Perez
- Fitopatología, EEMAC, Departamento de Protección Vegetal, Facultad de Agronomía, Universidad de la República, Ruta 3 km 363, Paysandú, Uruguay
| | - A.M. Pérez Sierra
- Instituto Agroforestal Mediterráneo, Universitat Politècnica de Valencia, Camino de Vera S/N,46022 Valencia, Spain
| | - J.L. Robertson
- Department of Medicine, Eglin Air Force Base, Florida, USA
| | - J. Roux
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Private Bag X20, Pretoria 0028, South Africa
| | - E. Rubio
- c/ José Cueto Nº3, 33401 Avilés (Asturias), Spain
| | | | - A.M. Stchigel
- Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201-Reus, Spain
| | - D.A. Sutton
- Fungus Testing Laboratory, Department of Pathology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Y.P. Tan
- Plant Pathology Herbarium, Department of Agriculture, Forestry and Fisheries, Dutton Park 4102, Queensland, Australia
| | - E.H. Thompson
- Fungus Testing Laboratory, Department of Pathology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - E. van der Linde
- ARC – Plant Protection Research Institute, Biosystematics Division – Mycology, P. Bag X134, Queenswood 0121, South Africa
| | - A.K. Walker
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada / Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, Ontario, K1A 0C6, Canada
| | - D.M. Walker
- The University of Findlay, 1000 North Main Street, Findlay, OH 45840 USA
| | - B.L. Wickes
- Department of Microbiology and Immunology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - P.T.W. Wong
- University of Sydney, Plant Breeding Institute, 107 Cobbitty Rd, Cobbitty, New South Wales 2570, Australia
| | - J.Z. Groenewald
- CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
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Mancini E, Camele I, Elshafie HS, De Martino L, Pellegrino C, Grulova D, De Feo V. Chemical Composition and Biological Activity of the Essential Oil ofOriganum vulgaressp.hirtumfrom Different Areas in the Southern Apennines (Italy). Chem Biodivers 2014; 11:639-51. [DOI: 10.1002/cbdv.201300326] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Indexed: 11/07/2022]
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Camele I, Altieri L, De Martino L, De Feo V, Mancini E, Rana GL. In vitro control of post-harvest fruit rot fungi by some plant essential oil components. Int J Mol Sci 2012; 13:2290-2300. [PMID: 22408454 PMCID: PMC3292023 DOI: 10.3390/ijms13022290] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 02/13/2012] [Accepted: 02/15/2012] [Indexed: 11/16/2022] Open
Abstract
Eight substances that are main components of the essential oils from three Mediterranean aromatic plants (Verbena officinalis, Thymus vulgaris and Origanum vulgare), previously found active against some phytopathogenic Fungi and Stramenopila, have been tested in vitro against five etiological agents of post-harvest fruit decay, Botrytis cinerea, Penicillium italicum, P. expansum, Phytophthora citrophthora and Rhizopus stolonifer. The tested compounds were β-fellandrene, β-pinene, camphene, carvacrol, citral, o-cymene, γ-terpinene and thymol. Citral exhibited a fungicidal action against P. citrophthora; carvacrol and thymol showed a fungistatic activity against P. citrophthora and R. stolonifer. Citral and carvacrol at 250 ppm, and thymol at 150 and 250 ppm stopped the growth of B. cinerea. Moreover, thymol showed fungistatic and fungicidal action against P. italicum. Finally, the mycelium growth of P. expansum was inhibited in the presence of 250 ppm of thymol and carvacrol. These results represent an important step toward the goal to use some essential oils or their components as natural preservatives for fruits and foodstuffs, due to their safety for consumer healthy and positive effect on shelf life extension of agricultural fresh products.
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Affiliation(s)
- Ippolito Camele
- Department of Biology, Plant Protection and Agro-Forestry Biotechnology, Basilicata University, Viale dell’Ateneo Lucano, 10-85100, Potenza, Italy; E-Mails: (I.C.); (L.A.); (G.L.R.)
| | - Luciana Altieri
- Department of Biology, Plant Protection and Agro-Forestry Biotechnology, Basilicata University, Viale dell’Ateneo Lucano, 10-85100, Potenza, Italy; E-Mails: (I.C.); (L.A.); (G.L.R.)
| | - Laura De Martino
- Department of Pharmaceutical and Biomedical Sciences, Salerno University, Fisciano, Salerno, Italy; E-Mails: (L.D.M.); (E.M.)
| | - Vincenzo De Feo
- Department of Pharmaceutical and Biomedical Sciences, Salerno University, Fisciano, Salerno, Italy; E-Mails: (L.D.M.); (E.M.)
| | - Emilia Mancini
- Department of Pharmaceutical and Biomedical Sciences, Salerno University, Fisciano, Salerno, Italy; E-Mails: (L.D.M.); (E.M.)
| | - Gian Luigi Rana
- Department of Biology, Plant Protection and Agro-Forestry Biotechnology, Basilicata University, Viale dell’Ateneo Lucano, 10-85100, Potenza, Italy; E-Mails: (I.C.); (L.A.); (G.L.R.)
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Camele I, Mang SM, Rana GL. First Report of Albugo candida Causing White Rust on Lunaria annua in Italy. Plant Dis 2011; 95:72. [PMID: 30743666 DOI: 10.1094/pdis-07-10-0513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Money plant or annual honesty (Lunaria annua L.) is an ornamental landscape plant used in flower beds and borders and also in flower arrangements. It is a biennial plant with large, pointed, oval leaves. Plants of L. annua showing white-to-cream, blister-like lesions on leaves and siliques (2) were found in private gardens where approximately 800 plants of 1,000 (approximately 80 to 90%) that were observed showed symptoms. The disease was also found in two ornamental nurseries, although it was limited to a few mother plants because of extensive fungicide treatments. The gardens and ornamental nurseries were located in Potenza Province (Basilicata Region, southern Italy). Sporangiophores were mostly straight or arched and almost cylindrical with attenuated base and flat or rounded apex and measured 29.2 to 33.4 × 12.8 to 13.4 μm. Sporangia, produced in chains and joined by short connectives, exhibited a spherical or angular shape, were subhyaline, contained vacuoles, and had average maximum and minimum diameters ranging from 15.8 to 18.8 and 14 to 16 μm, respectively. The morphological characteristics closely resembled those reported for Albugo candida (Pers.) Kuntze (3). Sori were collected from naturally and artificially inoculated tissues of L. annua, with the aid of a stereomicroscope, and used to extract genomic DNA via a DNeasy Plant Mini DNA extraction kit (Qiagen, Hilden, Germany) according to the manufacturer's directions. The extracted DNA was used as a template for amplification of the internal transcribed spacer (ITS) region of rDNA with primer pair ITS4/DC6 (1,4) and sequenced. One sequence, GenBank Accession No. GQ328846, matched several sequences of A. candida (Pers). Kuntze (e.g., GenBank Accession Nos. GQ328837, GQ328836, GQ328835, GQ328834, and AF271231), showing 98% identity. Pathogenicity tests were performed and repeated twice. Leaves of 10 healthy seedlings of L. annua were surface cleaned during several washings with distilled water and then spray inoculated with a suspension of 103 sporangia/ml of A. candida. Five healthy seedlings were spray inoculated with the same volume of sterile water and served as controls. Inoculated seedlings were maintained in a moist chamber for 48 h at 20°C before being moved to a shaded glasshouse at 16 to 24°C and 90% relative humidity. White rust symptoms, similar to those observed in natural conditions, appeared on leaves of inoculated seedlings 10 to 14 days later, demonstrating that A. candida was the causal agent of the disease. Control plants remained symptomless. White rust has been reported on L. annua in Europe (Czech Republic, Germany, Poland, and the United Kingdom) and in the northwestern United States (3). To our knowledge, this is the first report of A. candida infecting annual honesty plant in Italy. References: (1) P. Bonants et al. Eur. J. Plant Pathol. 103:345, 1997. (2) D. Choi et al. Mycotaxon 53:261, 1995. (3) D. A. Glawe et al. Online publication. doi:10.1094/PHP-2004-0317-01-HN. Plant Health Progress, 2004. (4) T. J. White et al. Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: PCR Protocols. A Guide to Methods and Applications. Academic Press, San Diego, CA, 1990.
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Affiliation(s)
- I Camele
- Università degli Studi della Basilicata, Dipartimento di Biologia, Difesa e Biotecnologie Agro-Forestali, Viale Ateneo Lucano 10, 85100 Potenza, Italy
| | - S M Mang
- Università degli Studi della Basilicata, Dipartimento di Biologia, Difesa e Biotecnologie Agro-Forestali, Viale Ateneo Lucano 10, 85100 Potenza, Italy
| | - G L Rana
- Università degli Studi della Basilicata, Dipartimento di Biologia, Difesa e Biotecnologie Agro-Forestali, Viale Ateneo Lucano 10, 85100 Potenza, Italy
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Camele I, De Feo V, Altieri L, Mancini E, De Martino L, Luigi Rana G. An Attempt of Postharvest Orange Fruit Rot Control Using Essential Oils from Mediterranean Plants. J Med Food 2010; 13:1515-23. [DOI: 10.1089/jmf.2009.0285] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Ippolito Camele
- Department of Biology, Protection and Agro-Forestry Biotechnology, University of Basilicata, Potenza, Italy
| | - Vincenzo De Feo
- Department of Pharmaceutical Science, Salerno State University, Fisciano, Salerno, Italy
| | - Luciana Altieri
- Department of Biology, Protection and Agro-Forestry Biotechnology, University of Basilicata, Potenza, Italy
| | - Emilia Mancini
- Department of Pharmaceutical Science, Salerno State University, Fisciano, Salerno, Italy
| | - Laura De Martino
- Department of Pharmaceutical Science, Salerno State University, Fisciano, Salerno, Italy
| | - Gian Luigi Rana
- Department of Biology, Protection and Agro-Forestry Biotechnology, University of Basilicata, Potenza, Italy
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Camele I, Marcone C, Caponero A, Ambrico A, Mucci M, Frisullo S. Verticillium Wilt of Xanthium italicum Caused by Verticillium dahliae in Italy. Plant Dis 2005; 89:908. [PMID: 30786526 DOI: 10.1094/pd-89-0908b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During the late summer of 2003, a wilt disease of the weed Italian cockleburr (Xanthium italicum Mor.) was observed in the Basilicata Region of southern Italy. Diseased plants were growing near an apricot orchard in which some trees were severely affected by Verticillium wilt. The most characteristic symptoms of the wilt disease affecting Italian cockleburr were yellowing, stunting, and gradual wilting. Also, diagonal and cross sections of stems revealed brown discoloration of their vascular tissues. To elucidate the etiology of the disease, we attempted detection and identification of the causal agents using traditional and polymerase chain reaction (PCR)-based methods. Small pieces of petiole and stem tissues from diseased and asymptomatic plants were surface disinfested in NaOCl solution, rinsed in sterile distilled water, blotted dry, and plated onto water agar (WA) medium. Following incubation at 22°C, the emerging colonies were transferred to potato dextrose agar (PDA). Verticillium dahliae (one isolate) was consistently identified on the basis of its morphological features according to the description of Smith (2). Using PCR assays with the primer pair ITS5/ITS4 (3), which are directed to fungal nuclear ribosomal DNA (rDNA) repeat sequences, an amplification product of approximately 560 bp was obtained by using total DNA extracted from wilt-affected Italian cockleburr plant tissues (five plants examined) as well as fresh mycelium from the V. dahliae-infected Italian cockleburr pure culture-maintained isolate mentioned above. No visible PCR products were obtained with total DNA from asymptomatic Italian cockleburr plants. Sequence analysis of the ITS5/ITS4 amplicons revealed no differences in their nucleotide positions. The obtained sequence of the V. dahliae-infected Italian cockleburr isolate (GenBank Accession No. AJ865691) was then used as query sequences in a BLAST 2.0 search (1). Sequence of the southern Italian isolate proved to be identical to that of the Greek strain "76 Greece" of V. dahliae (GenBank Accession no. AF104926). To prove Koch's postulates, 10 healthy Italian cockleburr seedlings were experimentally inoculated by dipping trimmed roots in a single-conidial suspension (1.5 × 106 CFU/ml) obtained from 10-day-old colonies of the V. dahliae-infected Italian cockleburr pure culture-maintained isolate. After 4 weeks, all inoculated Italian cockleburr plants showed symptoms identical to those of naturally infected field-grown plants. V. dahliae was consistently reisolated from inoculated plants. Additional inoculation experiments revealed that pepper and eggplant were also susceptible to the V. dahliae-infected Italian cockleburr isolate showing typical Verticillium wilt symptoms. To our knowledge, this is the first report of the occurrence of Verticillium wilt of X. italicum. References: (1) S. F. Altschul et al. Nucleic Acids Res. 25:3389, 1997. (2) H. C. Smith. N.Z. J. Agric. Res. 8:450, 1965. (3) T. J. White et al. Pages 315-322 in: PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, 1990.
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Affiliation(s)
- I Camele
- Dipartimento di Biologia, Difesa e Biotecnologie Agro-Forestali, Università degli Studi della Basilicata, 85100 Potenza, Italy
| | - C Marcone
- Dipartimento di Biologia, Difesa e Biotecnologie Agro-Forestali, Università degli Studi della Basilicata, 85100 Potenza, Italy
| | - A Caponero
- Azienda Agricola Sperimentale Dimostrativa, "Pantanello", ALSIA, 75010 Metaponto, Italy
| | - A Ambrico
- Azienda Agricola Sperimentale Dimostrativa, "Pantanello", ALSIA, 75010 Metaponto, Italy
| | - M Mucci
- Dipartimento di Scienze Agro-Ambientali, Chimica e Difesa Vegetale, Università degli Studi di Foggia, 71100 Foggia, Italy
| | - S Frisullo
- Dipartimento di Scienze Agro-Ambientali, Chimica e Difesa Vegetale, Università degli Studi di Foggia, 71100 Foggia, Italy
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