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Zhang Y, Zhou L, Wang C, Liu S. Synergistic antifungal effect and potential mechanism of Dimethomorph combined with Pyrimethanil against Phytophthora capsici. Food Chem 2024; 457:140158. [PMID: 38936133 DOI: 10.1016/j.foodchem.2024.140158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 05/30/2024] [Accepted: 06/17/2024] [Indexed: 06/29/2024]
Abstract
Synergistic effect of dimethomorph (DIM) and pyrimethanil (PYM) was evaluated using the Wadley method and the molecular mechanism of the antifungal effects of the combined treatment was systematically investigated. DIM+PYM had a synergistic effect on Phytophthora capsici, with the synergistic effect being observed at 5:1, at which the synergy coefficient was 1.8536. The mycelia of the pathogen treated with DIM+PYM were branched, uneven in thickness, and swollen. Moreover, scanning electron microscopy (SEM) revealed that DIM+PYM caused mycelium breaks, swelling, and apex enlargement, while transmission electron microscopy (TEM) revealed structural damage, cavities, and cell membrane morphological abnormalities. DIM+PYM inhibited the growth of mycelia, destroyed the cell membrane, interfered with energy metabolism, reduced protein and sugar content. Additionally, the transcriptome and metabolome of fungi treated with DIM+PYM changed significantly; specifically, there were 1571 differentially expressed genes and 802 differential metabolites. DIM+PYM may mainly damage the cell membrane, energy, protein, soluble sugar pathways.
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Affiliation(s)
- Ya Zhang
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China.
| | - Leyin Zhou
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
| | - Chong Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Shuangqing Liu
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China.
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2
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Hemalatha M, Hilli J, Chandrashekhar S, Vijayakumar A, Reddy UG, Tippannavar P. Application of green synthesized Ag and Cu nanoparticles for the control of bruchids and their impact on seed quality and yield in greengram. Heliyon 2024; 10:e31551. [PMID: 38828321 PMCID: PMC11140714 DOI: 10.1016/j.heliyon.2024.e31551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
Storage pests, particularly bruchids, are major biotic constraints causing significant storage losses in pulses. Conventional control methods relying on insecticides and fumigants often lead to food contamination due to toxic pesticide residues and a rapid decline in seed germination. In this investigation, through green nano-technological application, a promising and sustainable alternative for pest management is developed. Silver and copper nanoparticles were synthesized through ocimum leaf extract. The characterization of silver and copper nanoparticles was carried out by UV-spectroscopy, particle size analyzer, scanning electron microscopy, X-ray diffraction, and Fourier-transform infrared. Both the nanoparticles were spherical and crystalline in nature. Greengram seeds were primed with standardized silver and copper nanoparticles at different concentrations (1000, 1500, and 2000 ppm) and compared with castor-treated, deltamethrin-treated, and untreated control seeds for seed quality, growth, and yield. After one month of storage, all the pulse beetles released in different treatments exhibited 100 % mortality, whereas in control, the insects multiplied. At the end of nine months, the control seeds had shown 72 % damage and 39.67 % germination. In contrast, silver nanoparticles at 1000 ppm showed no seed damage and achieved 81.67 % germination, which was on par with copper nanoparticles at 1000 ppm with 79.33 % germination. Seed priming of silver and copper nanoparticles at 1000 ppm also demonstrated superior performance in all the seed quality and biochemical parameters (alpha amylase and catalase) throughout the storage period. Whereas, in the greenhouse experiment, enhanced growth (35.96 cm, 46.48 cm, and 53.00 cm at 30, 60 DAS, and at harvest, respectively) and yield per plant (3.75 g) were significantly higher in plants that were given foliar application with silver nanoparticles at 1000 ppm. Furthermore, foliar application of these nanoparticles at all concentrations (1000, 1500, and 2000 ppm) did not exhibit any adverse effects on soil microbial organisms, as assessed by dehydrogenase enzyme activity. Hence, this research highlights the potential use of silver and copper nanoparticles at 1000 ppm as effective tools for storage pest management and contributing to improved agricultural productivity and sustainability.
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Affiliation(s)
- M. Hemalatha
- Department of Seed Science and Technology, College of Agriculture, University of Agricultural Sciences (UAS), Dharwad, 580 005, Karnataka, India
| | - J.S. Hilli
- College of Agriculture, Hanumanamatti, UAS, Dharwad, 580 005, Karnataka, India
| | - S.S. Chandrashekhar
- Department of Seed Science and Technology, College of Agriculture, University of Agricultural Sciences (UAS), Dharwad, 580 005, Karnataka, India
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3
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Wu KT, Spychalla P, Pereyra M, Liou M, Chen Y, Silva E, Gevens A. Impacts of a Commercially Available Horticultural Oil Biopesticide (EF-400) on the Tomato- Phytophthora infestans Pathosystem. PLANT DISEASE 2024; 108:1533-1543. [PMID: 38105459 DOI: 10.1094/pdis-12-22-2968-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Biopesticide fungicides are naturally derived compounds that offer protection from plant diseases through various modes of action, including antimicrobial activity and upregulation of defense responses in host plants. These plant protectants provide a sustainable and safe alternative to conventional pesticides in integrated disease management programs and are especially salient in the management of high-risk and economically important diseases such as late blight of tomato and potato, for which host resistance options are limited. In this study, a commercially available biopesticide, EF400 comprised of clove (8.2%), rosemary (8.1%), and peppermint oils (6.7%) (Anjon AG, Corcoran, CA), was investigated for its effects on the Phytophthora infestans-tomato pathosystem. Specifically, we evaluated the impact of EF400 on P. infestans growth in culture, disease symptoms in planta, and activation of host defenses through monitoring transcript accumulation of defense-related genes. The application timing and use rate of EF400 were further investigated for managing tomato late blight. EF400 delayed the onset of tomato late blight symptoms, although not as effectively as the copper hydroxide fungicide Champ WG (Nufarm Americas Inc., Alsip, IL). Pathogen mycelial growth and sporangial quantity on late blight-susceptible tomato leaves were significantly reduced with EF400. The biopesticide also had an enhancing or suppressing effect on the transcript accumulation of three defense-related genes: Pin2, PR1a, and PR1b. Our work in exploring a commercially available horticultural oil biopesticide meaningfully contributed to the essential knowledge base for optimizing recommendations for the management of tomato late blight.
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Affiliation(s)
- Kuantin Tina Wu
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI 53706
| | - Pia Spychalla
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI 53706
| | - Matthew Pereyra
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI 53706
| | - Michael Liou
- Department of Statistics, University of Wisconsin-Madison, Madison, WI 53706
| | - Yu Chen
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI 53706
| | - Erin Silva
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI 53706
| | - Amanda Gevens
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI 53706
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4
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Babarinde S, Burlakoti RR, Peters RD, Al-Mughrabi K, Novinscak A, Sapkota S, Prithiviraj B. Genetic structure and population diversity of Phytophthora infestans strains in Pacific western Canada. Appl Microbiol Biotechnol 2024; 108:237. [PMID: 38407622 PMCID: PMC10896882 DOI: 10.1007/s00253-024-13040-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/07/2024] [Accepted: 01/28/2024] [Indexed: 02/27/2024]
Abstract
Late blight caused by Phytophthora infestans is an economically important disease of potato and tomato worldwide. In Canada, an increase in late blight incidence and severity coincided with changes in genetic composition of P. infestans. We monitored late blight incidence on tomato and potato in Pacific western and eastern Canada between 2019 and 2022, identified genotypes of P. infestans, and examined their population genetic diversity. We identified four major existing genotypes US11, US17, US8, and US23 as well as 25 new genotypes. The US11 genotype was dominant in Pacific western Canada, accounting for 59% of the total population. We discovered the US17 genotype for the first time in Canada. We revealed a higher incidence of late blight and quite diverse genotypes of P. infestans in Pacific western Canada than in eastern Canada. We found high genetic diversity of P. infestans population from Pacific western Canada, as evidenced by the high number of multilocus genotypes, high values of genetic diversity indices, and emergence of 25 new genotypes. Considering the number of disease incidence, the detection of diverse known genotypes, the emergence of novel genotypes, and the high number of isolates resistant to metalaxyl-m (95%) from Pacific western Canada, the region could play a role in establishing sexual recombination and diverse populations, which could ultimately pose challenges for late blight management. Therefore, continuous monitoring of P. infestans populations in Pacific western region and across Canada is warranted. KEY POINTS: • Genotypes of P. infestans in Pacific western were quite diverse than in eastern Canada. • We discovered US17 genotype for the first time in Canada and identified 26 novel genotypes. • Approximately 95% of P. infestans isolates were resistant to metalaxyl-m.
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Affiliation(s)
- Segun Babarinde
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, 6947 Hwy 7, Agassiz, BC, V0M 1A0, Canada
- Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada
| | - Rishi R Burlakoti
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, 6947 Hwy 7, Agassiz, BC, V0M 1A0, Canada.
| | - Rick D Peters
- Agriculture and Agri-Food Canada, 440 University Avenue, Charlottetown, PE, C1A 4N6, Canada
| | - Khalil Al-Mughrabi
- New Brunswick Department of Agriculture, Aquaculture and Fisheries, 39 Barker Lane, Wicklow, NB, E7L 3S4, Canada
| | - Amy Novinscak
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, 6947 Hwy 7, Agassiz, BC, V0M 1A0, Canada
| | - Sanjib Sapkota
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, 6947 Hwy 7, Agassiz, BC, V0M 1A0, Canada
| | - Balakrishnan Prithiviraj
- Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada
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Khalil M, Piccapane F, Vacca M, Celano G, Mahdi L, Perniola V, Apa CA, Annunziato A, Iacobellis I, Procino G, Calasso M, De Angelis M, Caroppo R, Portincasa P. Nutritional and Physiological Properties of Thymbra spicata: In Vitro Study Using Fecal Fermentation and Intestinal Integrity Models. Nutrients 2024; 16:588. [PMID: 38474717 DOI: 10.3390/nu16050588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 03/14/2024] Open
Abstract
(Poly)phenolic-rich Mediterranean plants such as Thymbra spicata have been associated with several health-promoting effects. The nutritional value, as well as physiological interaction of T. spicata with the gastrointestinal tract, has not been investigated before. The nutritional composition of T. spicata leaves was here characterized by standard analytical methods. T. spicata leaves were subjected to ethanolic extraction, simulated gastrointestinal digestion, and anaerobic microbial gut fermentation. Phenols/flavonoid contents and radical scavenging activity were assessed by colorimetric methods. The volatile organic compounds (VOCs) were detected by gas chromatography coupled with mass spectrometry. The effect on intestinal integrity was evaluated using a Caco-2 monolayers mounted in a Ussing chamber. T. spicata contains a high amount of fiber (12.3%) and unsaturated fatty acids (76% of total fat). A positive change in VOCs including short-chain fatty acids was observed without significant change in viable microbe. T. spicata and carvacrol (main phenolic compound) enhanced ionic currents in a concentration-dependent manner without compromising the Caco-2 monolayer's integrity. These effects were partially lost upon simulated digestion and completely abolished after colonic fermentation in line with polyphenols and carvacrol content. Conclusion: T. spicata represents a promising nutrient for the modulation of gut microbiota and the gut barrier. Further studies must better define its mechanisms of action.
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Affiliation(s)
- Mohamad Khalil
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University of Bari Medical School, 70124 Bari, Italy
| | - Francesca Piccapane
- Department of Bioscience, Biotechnology and Environment, University of Bari, 70125 Bari, Italy
| | - Mirco Vacca
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Giuseppe Celano
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Laura Mahdi
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University of Bari Medical School, 70124 Bari, Italy
| | - Valeria Perniola
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University of Bari Medical School, 70124 Bari, Italy
| | - Carmen Aurora Apa
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Alessandro Annunziato
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Ilaria Iacobellis
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Giuseppe Procino
- Department of Bioscience, Biotechnology and Environment, University of Bari, 70125 Bari, Italy
| | - Maria Calasso
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy
| | - Rosa Caroppo
- Department of Bioscience, Biotechnology and Environment, University of Bari, 70125 Bari, Italy
| | - Piero Portincasa
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University of Bari Medical School, 70124 Bari, Italy
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6
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Deweer C, Sahmer K, Muchembled J. Anti-oomycete activities from essential oils and their major compounds on Phytophthora infestans. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110240-110250. [PMID: 37779122 PMCID: PMC10625517 DOI: 10.1007/s11356-023-29270-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/07/2023] [Indexed: 10/03/2023]
Abstract
Botanicals are various plant-based products like plant extracts or essential oils. Anti-fungal activities of selected essential oils were tested on the pathogen causing potato and tomato late blight (Phytophthora infestans). Tests to evaluate anti-oomycete activities of commercial essential oils and their major compounds were carried out in vitro in microplate in liquid media. Anti-oomycete activities on Phytophthora infestans strain were obtained from essential oils/major compounds: Eucalyptus citriodora/citronellal; Syzygium aromaticum (clove)/eugenol; Mentha spicata/D-Carvone, L-Carvone; Origanum compactum/carvacrol; Satureja montana (savory)/carvacrol; Melaleuca alternifolia (tea tree)/terpinen-4-ol, and Thymus vulgaris/thymol. As an active substance of mineral origin, copper sulfate was chosen as a control. All selected essential oils showed an anti-oomycete activity calculated with IC50 indicator. The essential oils of clove, savory, and thyme showed the best anti-oomycete activities similar to copper sulfate, while oregano, eucalyptus, mint, and tea tree essential oils exhibited significantly weaker activities than copper sulfate. Clove essential oil showed the best activity (IC50 = 28 mg/L), while tea tree essential oil showed the worst activity (IC50 = 476 mg/L). For major compounds, three results were obtained: they were statistically more active than their essential oils (carvacrol for oregano, D- and L-Carvone for mint) or as active as their essential oils sources (thymol for thyme, carvacrol for savory, terpinen-4-ol for tea tree) or less active than their original essential oils (eugenol for clove, citronellal for eucalyptus). Microscopical observations carried out with the seven essential oils showed that they were all responsible for a modification of the morphology of the mycelium. The results demonstrated that various essential oils show different anti-oomycete activities, sometimes related to a major compound and sometimes unrelated, indicating that other compounds must play a role in total anti-oomycete activity.
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Affiliation(s)
- Caroline Deweer
- Joint Research Unit 1158 BioEcoAgro, INRAE, JUNIA, University of Lille, University of Liège, UPJV, University of Artois, ULCO, F-59000, Lille, France
| | - Karin Sahmer
- Univ. Lille, IMT Lille Douai, Univ. Artois, JUNIA, ULR 4515 - LGCgE, Laboratoire de Génie Civil et géo-Environnement, F-59000, Lille, France
| | - Jérôme Muchembled
- Joint Research Unit 1158 BioEcoAgro, INRAE, JUNIA, University of Lille, University of Liège, UPJV, University of Artois, ULCO, F-59000, Lille, France.
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Martini F, Jijakli MH, Gontier E, Muchembled J, Fauconnier ML. Harnessing Plant's Arsenal: Essential Oils as Promising Tools for Sustainable Management of Potato Late Blight Disease Caused by Phytophthora infestans-A Comprehensive Review. Molecules 2023; 28:7302. [PMID: 37959721 PMCID: PMC10650712 DOI: 10.3390/molecules28217302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Potato late blight disease is caused by the oomycete Phytophthora infestans and is listed as one of the most severe phytopathologies on Earth. The current environmental issues require new methods of pest management. For that reason, plant secondary metabolites and, in particular, essential oils (EOs) have demonstrated promising potential as pesticide alternatives. This review presents the up-to-date work accomplished using EOs against P. infestans at various experimental scales, from in vitro to in vivo. Additionally, some cellular mechanisms of action on Phytophthora spp., especially towards cell membranes, are also presented for a better understanding of anti-oomycete activities. Finally, some challenges and constraints encountered for the development of EOs-based biopesticides are highlighted.
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Affiliation(s)
- Florian Martini
- Joint and Research Unit, 1158 BioEcoAgro Junia, 59000 Lille, France;
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, Liege University, Passage des Déportés 2, 5030 Gembloux, Belgium;
- Laboratory of Plant Biology and Innovation, BIOPI-UPJV, UMRT BioEcoAgro INRAE1158, UFR Sciences of University of Picardie Jules Verne, 33 rue Saint Leu, 80000 Amiens, France;
| | - M. Haïssam Jijakli
- Integrated and Urban Plant Pathology Laboratory, Gembloux Agro-Bio Tech, Liege University, Passage des Déportés 2, 5030 Gembloux, Belgium;
| | - Eric Gontier
- Laboratory of Plant Biology and Innovation, BIOPI-UPJV, UMRT BioEcoAgro INRAE1158, UFR Sciences of University of Picardie Jules Verne, 33 rue Saint Leu, 80000 Amiens, France;
| | - Jérôme Muchembled
- Joint and Research Unit, 1158 BioEcoAgro Junia, 59000 Lille, France;
| | - Marie-Laure Fauconnier
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, Liege University, Passage des Déportés 2, 5030 Gembloux, Belgium;
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Gupta I, Singh R, Muthusamy S, Sharma M, Grewal K, Singh HP, Batish DR. Plant Essential Oils as Biopesticides: Applications, Mechanisms, Innovations, and Constraints. PLANTS (BASEL, SWITZERLAND) 2023; 12:2916. [PMID: 37631128 PMCID: PMC10458566 DOI: 10.3390/plants12162916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/01/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
The advent of the "Green Revolution" was a great success in significantly increasing crop productivity. However, it involved high ecological costs in terms of excessive use of synthetic agrochemicals, raising concerns about agricultural sustainability. Indiscriminate use of synthetic pesticides resulted in environmental degradation, the development of pest resistance, and possible dangers to a variety of nontarget species (including plants, animals, and humans). Thus, a sustainable approach necessitates the exploration of viable ecofriendly alternatives. Plant-based biopesticides are attracting considerable attention in this context due to their target specificity, ecofriendliness, biodegradability, and safety for humans and other life forms. Among all the relevant biopesticides, plant essential oils (PEOs) or their active components are being widely explored against weeds, pests, and microorganisms. This review aims to collate the information related to the expansion and advancement in research and technology on the applications of PEOs as biopesticides. An insight into the mechanism of action of PEO-based bioherbicides, bioinsecticides, and biofungicides is also provided. With the aid of bibliometric analysis, it was found that ~75% of the documents on PEOs having biopesticidal potential were published in the last five years, with an annual growth rate of 20.51% and a citation per document of 20.91. Research on the biopesticidal properties of PEOs is receiving adequate attention from European (Italy and Spain), Asian (China, India, Iran, and Saudi Arabia), and American (Argentina, Brazil, and the United States of America) nations. Despite the increasing biopesticidal applications of PEOs and their widespread acceptance by governments, they face many challenges due to their inherent nature (lipophilicity and high volatility), production costs, and manufacturing constraints. To overcome these limitations, the incorporation of emerging innovations like the nanoencapsulation of PEOs, bioinformatics, and RNA-Seq in biopesticide development has been proposed. With these novel technological interventions, PEO-based biopesticides have the potential to be used for sustainable pest management in the future.
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Affiliation(s)
- Ipsa Gupta
- Department of Botany, Faculty of Science, Panjab University, Chandigarh 160014, India; (I.G.); (R.S.)
| | - Rishikesh Singh
- Department of Botany, Faculty of Science, Panjab University, Chandigarh 160014, India; (I.G.); (R.S.)
| | - Suganthi Muthusamy
- Department of Biotechnology, Vels Institute of Science, Technology & Advanced Studies, Pallavaram, Chennai 600117, India;
| | - Mansi Sharma
- Department of Environment Studies, Faculty of Science, Panjab University, Chandigarh 160014, India;
| | - Kamaljit Grewal
- Department of Botany, Khalsa College for Women, Civil Lines, Ludhiana 141001, India;
| | - Harminder Pal Singh
- Department of Environment Studies, Faculty of Science, Panjab University, Chandigarh 160014, India;
| | - Daizy R. Batish
- Department of Botany, Faculty of Science, Panjab University, Chandigarh 160014, India; (I.G.); (R.S.)
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9
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Yun Y, Shi H, Wang Y, Yang F, Zhang Y, Feng H, Chen J, Wang X. Pre-Protection and Mechanism of Crude Extracts from Dioscorea alata L. on H 2O 2-Induced IPEC-J2 Cells Oxidative Damage. Animals (Basel) 2023; 13:ani13081401. [PMID: 37106964 PMCID: PMC10135252 DOI: 10.3390/ani13081401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
The purple tubers of Dioscorea alata L. have been found to contain a variety of bioactive chemical components, including anthocyanins, which make it significant to investigate the pre-protective effects of Dioscorea alata L. and its crude extracts on cells prior to oxidative stress. To establish a suitable oxidative damage model, an injured model of IPEC-J2 cells was created using H2O2 as the oxidant. Specifically, when the concentration of H2O2 was 120 μmol/L and the injured time was 8 h, the survival rate of cells decreased to approximately 70%, and the cells exhibited a noticeable oxidative stress reaction. Moreover, the crude extracts of Dioscorea alata L. demonstrated beneficial pre-protective effects on IPEC-J2 cells by increasing the total antioxidant capacity (T-AOC) and catalase (CAT) activities, augmenting the expression of total superoxide dismutase (T-SOD) and its genes, reducing the content of malondialdehyde (MDA) and the activity of glutathione peroxidase (GSH-PX) and its expression of genes, and promoting the expression of glucose transporter SGLT1 gene while reducing that of GULT2 gene, thereby facilitating the entry of anthocyanins into cells. In addition, the 50 μg/mL crude extracts effectively inhibited the phosphorylation of IκB and the p65 protein, thus reducing cellular oxidative stress. Given these findings, Dioscorea alata L. can be considered a natural antioxidant for practical breeding and production purposes, with an optimal concentration of crude extracts in this experiment being 50 μg/mL.
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Affiliation(s)
- Yanhong Yun
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Huiyu Shi
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Yanyu Wang
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Fengyuan Yang
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Yuanxin Zhang
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Haibo Feng
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Junpu Chen
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
| | - Xuemei Wang
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
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10
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Dhouibi I, Flamini G, Bouaziz M. Comparative Study on the Essential Oils Extracted from Tunisian Rosemary and Myrtle: Chemical Profiles, Quality, and Antimicrobial Activities. ACS OMEGA 2023; 8:6431-6438. [PMID: 36844591 PMCID: PMC9947950 DOI: 10.1021/acsomega.2c06713] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Rosemary (Rosmarinus officinalis L.) and myrtle (Myrtus communis L.) are perennial herbs, typical of the Tunisian flora, with an intense aromatic flavor. Their essential oils, obtained by hydro-distillation, were analyzed by gas chromatography coupled to mass spectrometry and by infrared Fourier transform spectrometry. In addition, these oils were assessed for their physicochemical properties as well as their antioxidant and antibacterial activities. The physicochemical characterization proved to be of good quality by analyzing pH, water content (%), density at 15 °C (g/cm3), and iodine values according to standard test methods. The study of the chemical composition allowed for the identification of 1,8-cineole (30%) and α-pinene (40.4%) as the main constituents of myrtle essential oil, while 1,8-cineole (37%), camphor (12.5%), and α-pinene (11.6%) were identified as principal components in rosemary essential oil. The evaluation of their antioxidant activities permitted to obtain the IC50 values, which ranged between 22.3 and 44.7 μg/mL for DPPH and between 15.52 and 28.59 μg/mL for ferrous chelating assay, for rosemary and myrtle essential oils, respectively, thus indicating that rosemary essential oil is the most effective antioxidant. Furthermore, the antibacterial activity of the essential oils was tested in vitro against eight bacterial strains by the disc diffusion method. The essential oils showed antibacterial effects on both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Ines Dhouibi
- Laboratory
of Electrochemistry and Environment, National School of Engineers
of Sfax, University of Sfax, PB ≪1173≫, 3038 Sfax, Tunisia
| | - Guido Flamini
- Dipartimento
di Farmacia, Università di Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Mohamed Bouaziz
- Laboratory
of Electrochemistry and Environment, National School of Engineers
of Sfax, University of Sfax, PB ≪1173≫, 3038 Sfax, Tunisia
- Higher
Institute of Biotechnology of Sfax, University
of Sfax, PB ≪1175≫, 3038 Sfax, Tunisia
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11
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Li F, Mei DH, Ren T, Song QY. Crude Extracts and Secondary Metabolites of Epichloë bromicola against Phytophthora infestans. Chem Biodivers 2023; 20:e202200841. [PMID: 36471540 DOI: 10.1002/cbdv.202200841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Potato late blight caused by Phytophthora infestans is still one of the main factors limiting potato production. Epichloë spp. can provide host plants with various resistances, which makes them show great potential in the biological control of diseases. In this study, we explored the potential biological activity of crude extracts of 20 strains of Epichloë bromicola to control P. infestans. The crude extracts of strains 1 and 8 showed significant antifungal activity with an inhibition rate of 88 % and 81 %, respectively, and showed different effects on the mycelium morphology of P. infestans observed by scanning electron microscopy. Moreover, the two crude extracts demonstrated an interesting therapeutic and protective effect on potato late blight, and none of the extracts had an adverse effect against zebrafish embryos. A total of 13 metabolites were isolated from the crude extract of strain 8, and these tested compounds showed a weak antifungal effect and the inhibition rate was less than 80 %. These findings suggested that strains 1 and 8 have potential for biocontrol of late potato blight.
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Affiliation(s)
- Fan Li
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Da-Hai Mei
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Ting Ren
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Qiu-Yan Song
- State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
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12
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Zhou AA, Li RY, Mo FX, Ding Y, Li RT, Guo X, Hu K, Li M. Natural Product Citronellal can Significantly Disturb Chitin Synthesis and Cell Wall Integrity in Magnaporthe oryzae. J Fungi (Basel) 2022; 8:jof8121310. [PMID: 36547643 PMCID: PMC9784034 DOI: 10.3390/jof8121310] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/10/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Natural products are often favored in the study of crop pests and diseases. Previous studies have shown that citronellal has a strong inhibition effect on Magnaporthe oryzae. The objective of this study was to clarify its mechanism of action against M. oryzae. RESULTS Firstly, the biological activity of citronellal against M. oryzae was determined by direct and indirect methods, and the results show that citronellal had a strong inhibition effect on M. oryzae with EC50 values of 134.00 mg/L and 70.48 μL/L air, respectively. Additionally, a preliminary study on its mechanism of action was studied. After citronellal treatment, electron microscopy revealed that the mycelium became thin and broken; scanning electron microscopy revealed that the mycelium was wrinkled and distorted; and transmission electron microscopy revealed that the mycelium cell wall was invaginated, the mass wall of mycelium was separated, and the organelles were blurred. The mycelium was further stained with CFW, and the nodes were blurred, while the mycelium was almost non-fluorescent after PI staining, and there was no significant difference in the relative conductivity of mycelium. In addition, chitinase was significantly enhanced, and the expression of chitin synthesis-related genes was 17.47-fold upregulated. Finally, we found that the efficacy of citronellal against the rice blast was as high as 82.14% according to indoor efficacy tests. CONCLUSION These results indicate that citronellal can affect the synthesis of chitin in M. oryzae and damage its cell wall, thereby inhibiting the growth of mycelium and effectively protecting rice from rice blasts.
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Affiliation(s)
- Ai-Ai Zhou
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Rong-Yu Li
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
- The Provincial Key Laboratory for Agricultural Pest Management in Mountainous Region, Guiyang 550025, China
- Correspondence: ; Tel.: +86-151-8514-8063
| | - Fei-Xu Mo
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Yi Ding
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Ruo-Tong Li
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Xue Guo
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Ke Hu
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Ming Li
- Institute of Crop Protection, Guizhou University, Guiyang 550025, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
- The Provincial Key Laboratory for Agricultural Pest Management in Mountainous Region, Guiyang 550025, China
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13
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Park JH, Song MG, Lee SW, Choi SH, Hong JK. Co-treatment with Origanum Oil and Thyme Oil Vapours Synergistically Limits the Growth of Soil-borne Pathogens Causing Strawberry Diseases. THE PLANT PATHOLOGY JOURNAL 2022; 38:673-678. [PMID: 36503196 PMCID: PMC9742797 DOI: 10.5423/ppj.nt.08.2022.0125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/29/2022] [Accepted: 09/29/2022] [Indexed: 06/17/2023]
Abstract
Vapours from origanum oil (O) and thyme oil (T) were applied to the four soil-borne strawberry pathogens Fusarium oxysporum f. sp. fragariae, Colletotrichum fructicola, Lasiodiplodia theobromae, and Phytophthora cactorum, causing Fusarium wilt, anthracnose, dieback, and Phytophthora rot, respectively. Increasing T vapour doses in the presence of O vapour strongly inhibited mycelial growths of the four pathogens and vice versa. When mycelia of F. oxysporum f. sp. fragariae and P. cactorum exposed to the combined O + T vapours were transferred to the fresh media, mycelial growth was restored, indicating fungistasis by vapours. However, the mycelial growth of C. fructicola and L. theobromae exposed to the combined O + T vapours have been slightly retarded in the fresh media. Prolonged exposure of strawberry pathogens to O + T vapours in soil environments may be suggested as an alternative method for eco-friendly disease management.
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Affiliation(s)
- Jong Hyup Park
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725,
Korea
| | - Min Geun Song
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725,
Korea
| | - Sang Woo Lee
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725,
Korea
| | - Sung Hwan Choi
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725,
Korea
- Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52725,
Korea
| | - Jeum Kyu Hong
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725,
Korea
- Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52725,
Korea
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14
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Synergistic effect of Foeniculum vulgare essential oil on the antibacterial activities of Ag- and Cu-substituted ZnO nanorods (ZnO-NRs) against food, human and plant pathogenic bacterial disease agents. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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The dual nature of Lambertella corni-maris as an apple fruit pathogen and antagonist of Monilinia spp. Mycol Prog 2022. [DOI: 10.1007/s11557-022-01841-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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16
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Olave-Achury A, Cardenas D, Restrepo S, Lucca F, Fry WE, Myers KL, Danies G, Soto-Suarez M. Phenotypic and Genotypic Characterization of Phytophthora infestans Isolates Associated with Tomato and Potato Crops in Colombia. PHYTOPATHOLOGY 2022; 112:1783-1794. [PMID: 35124971 DOI: 10.1094/phyto-04-21-0158-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Late blight disease, caused by the plant pathogen Phytophthora infestans, is one of the major threats for tomato and potato crops. Monitoring the populations of P. infestans is important to determine if there are changes in the sensitivity to fungicides and host preference. In this study, microsatellite markers and mitochondrial haplotypes were used to assess the genotype of isolates of P. infestans collected from tomato and potato plants in Colombia. Furthermore, sensitivity to the three fungicides cymoxanil (penetrant fungicide), mefenoxam, and fluopicolide (systemic fungicides), and tomato-potato host preference, were evaluated. Mitochondrial haplotyping showed that isolates collected on tomato were from the genetic groups Ia and Ib, while isolates collected on potatoes belonged to group IIa. Microsatellite analyses showed that isolates from tomato form two groups, including the Ib mitochondrial haplotype (which is genetically close to the US-1 clonal lineage) and the Ia haplotype (related to the EC-3 lineage), whereas Colombian isolates from potato formed a separate group. Furthermore, differences in sensitivity to fungicides were observed. Eighty-one percent of the isolates tested were resistant to mefenoxam with an EC50 >10 μg ml-1. Forty-two percent of the isolates showed an intermediate resistance to cymoxanil. The EC50 values ranged between 1 and 10 μg ml-1. For fluopicolide, 90% of the isolates were sensitive, with EC50 <1 μg ml-1. Host preference assays showed that potato isolates infected both host species. Thus, isolates that infect potatoes may pose a risk for tomato crops nearby.
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Affiliation(s)
- Andrea Olave-Achury
- Department of Food and Chemical Engineering, Laboratory of Mycology and Phytopathology, Universidad de los Andes, Bogotá, Colombia 27991
- Corporación Colombiana de Investigación Agropecuaria-AGROSAVIA, Centro de Investigación Tibaitatá, Km 14 Via Mosquera-Bogotá, Cundinamarca, Colombia 250047
| | - Dixon Cardenas
- Department of Food and Chemical Engineering, Laboratory of Mycology and Phytopathology, Universidad de los Andes, Bogotá, Colombia 27991
| | - Silvia Restrepo
- Department of Food and Chemical Engineering, Laboratory of Mycology and Phytopathology, Universidad de los Andes, Bogotá, Colombia 27991
| | - Florencia Lucca
- Instituto Nacional de Tecnología Agropecuaria, Grupo de Investigación en Papa, Estación Experimental Agropecuaria Balcarce, 7620 República Argentina
| | - William E Fry
- School of Integrative Plant Science, Plant Pathology and Plant-Microbe Biology Section, Cornell University, Ithaca, NY 14850, U.S.A
| | - Kevin L Myers
- School of Integrative Plant Science, Plant Pathology and Plant-Microbe Biology Section, Cornell University, Ithaca, NY 14850, U.S.A
| | - Giovanna Danies
- Department of Design, Universidad de los Andes, Bogotá, Colombia 111711
| | - Mauricio Soto-Suarez
- Corporación Colombiana de Investigación Agropecuaria-AGROSAVIA, Centro de Investigación Tibaitatá, Km 14 Via Mosquera-Bogotá, Cundinamarca, Colombia 250047
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17
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Evaluation of Conditions to Improve Biomass Production by Submerged Culture of Ganoderma sp. Microorganisms 2022; 10:microorganisms10071404. [PMID: 35889123 PMCID: PMC9322093 DOI: 10.3390/microorganisms10071404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/28/2022] [Accepted: 07/02/2022] [Indexed: 12/04/2022] Open
Abstract
In the present investigation, the conditions for in vitro submerged culture of a native strain of Ganoderma sp. were evaluated. Different culture medium ingredients, inoculum concentrations, inoculation methods, configuration, and airflows were evaluated to improve biomass production. The addition of thiamine and olive oil to the culture medium increased biomass production, as well as inoculating 6.6 g/L since there are no significant differences in biomass growth according to inoculum origin (pre-inoculum, discs or with spores). The best configuration of the 3 L stirred tank bioreactor was using three impellers and a porous air diffuser of 0.25 volume per volume per minute (vvm), the dry biomass concentration was 22.6 g/L after 12 days of cultivation at 30 °C, much higher than other investigations. This study provides relevant information for pilot-scale production of this fungus for future secondary metabolites. The culture medium was optimized, and it was defined that the concentration and origin of the inoculum did not influence the growth of Biomass, but the aeration and the configuration of the system allowed the establishment of protocols for the cultivation of Ganoderma sp.
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18
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Thangaraj P, Balamurali AS, Subbiah KA, Sevugapperumal N, Gurudevan T, Uthandi S, Shanmugam H. Antifungal Volatilomes Mediated Defense Mechanism against Fusarium oxysporum f. sp. lycopersici, the Incitant of Tomato Wilt. Molecules 2022; 27:molecules27113631. [PMID: 35684567 PMCID: PMC9182059 DOI: 10.3390/molecules27113631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 02/05/2023] Open
Abstract
In this study, the volatilomes of naturally growing plant leaves were immobilized in a suitable substrate to enhance vapors’ diffusion in the soil to eradicate the Fusarium wilt pathogens in Tomato. Volatilomes produced by Mentha spicata leaves immobilized in vermiculite ball was found to be effective and exhibit 92.35 percent inhibition on the mycelial growth of Fusarium oxysporum f. sp. lycopersici (FOL). Moreover, the volatilomes of M. spicata immobilized vermiculite balls were tested based on the distance traveled by the diffused volatilomes from the ball and revealed that the volatilomes of M. spicata traveled up to 20 cm distance from the center of PVC (Polyvinly chloride) chamber showed maximum reduction in colony growth of FOL at 12th day after inoculation. Tomato plants inoculated with FOL revealed increased expressions of defense gene, pathogenesis related protein (PR1) with 2.63-fold after 72 h and the gene, transcription factor (WRKY) increased with 2.5-fold after 48 h on exposure to the volatilomes of M. spicata vermiculite balls. To the best of our knowledge, this is the first report on development of volatilomes based vermiculite ball formulations. This result indicated that the volatilomes of M. spicata are promising phyto-fumigants for management of Tomato Fusarial wilt.
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Affiliation(s)
- Praveen Thangaraj
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003, India; (A.S.B.); (N.S.); (T.G.)
- Correspondence: (P.T.); (K.A.S.)
| | - Akshaya Subbaih Balamurali
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003, India; (A.S.B.); (N.S.); (T.G.)
| | - Krishnamoorthy Akkanna Subbiah
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003, India; (A.S.B.); (N.S.); (T.G.)
- Correspondence: (P.T.); (K.A.S.)
| | - Nakkeeran Sevugapperumal
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003, India; (A.S.B.); (N.S.); (T.G.)
| | - Thiribhuvanamala Gurudevan
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003, India; (A.S.B.); (N.S.); (T.G.)
| | - Sivakumar Uthandi
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore 641 003, India;
| | - Haripriya Shanmugam
- Department of Nanoscience and Technology, Tamil Nadu Agricultural University, Coimbatore 641 003, India;
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19
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Liu Z, Li QX, Song B. Pesticidal Activity and Mode of Action of Monoterpenes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4556-4571. [PMID: 35380824 DOI: 10.1021/acs.jafc.2c00635] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Synthetic pesticides are often associated with issues such as pest resistance, persistent residue, nontarget toxicity, and environmental issues. Therefore, the research and development of novel, safe, and effective pesticides has become a focus in pesticide discovery. Monoterpenes are secondary plant metabolites that commonly have multiple action targets and have been used in aromatherapy, alternative medicine, and food industries. Some are highly potent and stereoselective. They can potentially be botanical pesticides and serve as lead candidates for the design and synthesis of new monoterpenoid pesticides for agricultural applications. This article reviews publications and patents found in SciFinder Scholar between 2000 and May 2021 on monoterpenes and mainly focuses on pesticidal activities of frequently studied monoterpenes and their modes of action. The presented information and our views are hopefully useful for the development of monoterpenes as biopesticides and monoterpenoid pesticides.
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Affiliation(s)
- Zhengjun Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
- College of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou 561000, P. R. China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
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20
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Gaba J, Sharma S, Kaur P. Preparation and Biological Evaluation of Thymol Functionalized 2-Pyrazoline and Dihydropyrimidinone Hybrids. ORG PREP PROCED INT 2022. [DOI: 10.1080/00304948.2022.2040896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jyoti Gaba
- Department of Chemistry, Punjab Agricultural University, Ludhiana, India
| | - Sunita Sharma
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Pardeep Kaur
- Department of Chemistry, Punjab Agricultural University, Ludhiana, India
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21
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Sun M, Duan Y, Liu JP, Fu J, Huang Y. Efficacy of Dimethyl Trisulfide on the Suppression of Ring Rot Disease Caused by Botryosphaeria dothidea and Induction of Defense-Related Genes on Apple Fruits. Front Microbiol 2022; 13:796167. [PMID: 35197948 PMCID: PMC8859264 DOI: 10.3389/fmicb.2022.796167] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/07/2022] [Indexed: 11/13/2022] Open
Abstract
Apple ring rot caused by Botryosphaeria dothidea is prevalent in main apple-producing areas in China, bringing substantial economic losses to the growers. In the present study, we demonstrated the inhibitory effect of dimethyl trisulfide (DT), one of the main activity components identified in Chinese leek (Allium tuberosum) volatile, on the apple ring rot on postharvest fruits. In in vitro experiment, 250 μL/L DT completely suppressed the mycelia growth of B. dothidea. In in vivo experiment, 15.63 μL/L DT showed 97% inhibition against the apple ring rot on postharvest fruit. In addition, the soluble sugar content, vitamin C content, and the soluble sugar/titratable acidity ratio of the DT-treated fruit were significantly higher than those of the control fruit. On this basis, we further explored the preliminary underlying mechanism. Microscopic observation revealed that DT seriously disrupted the normal morphology of B. dothidea. qRT-PCR determination showed the defense-related genes in DT-treated fruit were higher than those in the control fruit by 4.13–296.50 times, which showed that DT inhibited apple ring rot on postharvest fruit by suppressing the growth of B. dothidea, and inducing the defense-related genes in apple fruit. The findings of this study provided an efficient, safe, and environment-friendly alternative to control the apple ring rot on apple fruit.
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Affiliation(s)
- Meng Sun
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
- National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao), Qingdao, China
- Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Yanxin Duan
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
- National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao), Qingdao, China
- Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Jun Ping Liu
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
- National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao), Qingdao, China
- Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Jing Fu
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
- National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao), Qingdao, China
- Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Yonghong Huang
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
- Laboratory of Quality and Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao, China
- National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao), Qingdao, China
- Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
- *Correspondence: Yonghong Huang,
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22
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Shahabadi N, Mahdavi M. Green synthesized silver nanoparticles obtained from Stachys schtschegleevii extract: ct-DNA interaction and in silico and in vitro investigation of antimicrobial activity. J Biomol Struct Dyn 2022; 41:2175-2188. [PMID: 35048781 DOI: 10.1080/07391102.2022.2028680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The aim of this study was the synthesis of Ag nanoparticles (AgNPs) by using Stachys schtschegleevii extract and checking the composition, morphology and size of the green synthesized AgNPs using the analytical techniques (UV-vis, DLS, zeta potential, SEM-EDX, FT-IR and TEM). The TEM images of AgNPs represent a smooth surface and are spherical in shape with an average particle size of 31.43 nm. The antioxidant activities of green synthesized AgNPs were appraised by radical scavenging 1, 1-diphenyl-2-picrylhydrazyl test and the green synthesized AgNPs showed a strong ability to scavenge free radicals. In addition, AgNPs displayed a remarkable antibacterial and antifungal activity against various microorganisms. We employed molecular docking to investigate the AgNPs interaction with Dihydrofolate reductase (DHFR) of Escherichia coli, Staphylococcus aureus, and Candida albicans and there is a good agreement between molecular docking and our experimental results. The result of ct-DNA-AgNPs interaction demonstrated that AgNPs can bind to ct-DNA through partial intercalation binding mode.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Mahdavi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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Hosny KM, Rizg WY, Alfayez E, Elgebaly SS, Alamoudi AJ, Felimban RI, Tayeb HH, Mushtaq RY, Safhi AY, Alharbi M, Almehmady AM. Preparation and optimization of aloe ferox gel loaded with Finasteride-Oregano oil nanocubosomes for treatment of alopecia. Drug Deliv 2022; 29:284-293. [PMID: 35019794 PMCID: PMC8757594 DOI: 10.1080/10717544.2022.2026534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Alopecia areata is a skin disorder characterized by scarless, localized hair loss that is usually managed by topical treatments that might further worsen the condition. Therefore, the current study aimed to develop nano-cubosomes loaded with finasteride (FI) and oregano oil (Or) to improve drug solubility and permeation through skin and then incorporate it into an aloe ferox gel base. An l-optimal coordinate exchange design was adopted to optimize nano-cubosomes. Phytantriol and Alkyl Acrylate were employed as the lipid material, and surfactant respectively for cubosomes manufacture. The produced formulations were assessed for their particle size, entrapment efficiency (EE%), FI steady-state flux (Jss) and minimum inhibitory concentration (MIC) against Pro-pionibacterium acnes. Optimal FI-Or-NCu had a particle size of 135 nm, EE% equals 70%, Jss of 1.85 μg/cm2.h, and MIC of 0.44 μg/ml. The optimum formulation loaded gel gained the highest drug release percent and ex vivo skin permeation compared to FI aqueous suspension, and pure FI loaded gel. Aloe ferox and oregano oil in the optimized gel formulation had a synergistic activity on the FI permeation across the skin and against the growth of p. acne bacteria which could favor their use in treating alopecia. Thus, this investigation affirms the ability of FI-Or-NCu loaded aloe ferox gel could be an effective strategy that would enhance FI release and permeation through skin and maximize its favorable effects in treating alopecia.
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Affiliation(s)
- Khaled M Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Waleed Y Rizg
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Eman Alfayez
- Department of Oral Biology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Samar S Elgebaly
- Department of Clinical Biochemistry, Cairo Laboratories for clinical pathology, Cairo, Egypt
| | - Abdulmohsin J Alamoudi
- Department of Pharmacology and toxicology, Faculty of Pharmacy, King Abdulaziz University, Saudi Arabia
| | - Raed I Felimban
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hossam H Tayeb
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), Nanomedicine Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rayan Y Mushtaq
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Awaji Y Safhi
- Department of Pharmaceutics, Faculty of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Majed Alharbi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Saudi Arabia
| | - Alshaimaa M Almehmady
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
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The Concentration-Dependent Effects of Essential Oils on the Growth of Fusarium graminearum and Mycotoxins Biosynthesis in Wheat and Maize Grain. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12010473] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The presence of Fusarium fungi and their toxic metabolites in agricultural crops contributes to significant quantitative and qualitative losses of crops, causing a direct threat to human and animal health and life. Modern strategies for reducing the level of fungi and mycotoxins in the food chain tend to rely on natural methods, including plant substances. Essential oils (EOs), due to their complex chemical composition, show high biological activity, including fungistatic properties, which means that they exhibit high potential as a biological plant protection factor. The aim of this study was to determine the fungistatic activity of three EOs against F. graminearum, and the reduction of mycotoxin biosynthesis in corn and wheat grain. All tested EOs effectively suppressed the growth of F. graminearum in concentrations of 5% and 10%. Cinnamon and verbena EOs also effectively reduced the ergosterol (ERG) content in both grains at the concentration of 1%, while at the 0.1% EO concentration, the reduction in the ERG amount depended on the EO type as well as on the grain. The degree of zearalenone (ZEA) reduction was consistent with the inhibition of ERG biosynthesis, while the reduction in deoxynivalenol (DON) was not consistent with this parameter.
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Antifungal Activity of Essential Oils from Three Artemisia Species against Colletotrichum gloeosporioides of Mango. Antibiotics (Basel) 2021; 10:antibiotics10111331. [PMID: 34827269 PMCID: PMC8614767 DOI: 10.3390/antibiotics10111331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 11/17/2022] Open
Abstract
Post-harvest diseases of mango reduce fruit quality and cause severe yield losses with completely unmarketable fruits. The most common diseases of mangos are anthracnose (Colletotrichum gloeosporioides). In this study, the antibacterial activities of essential oils from Artemisia scoparia, Artemisia lavandulaefolia, and Artemisia annua against C. gloeosporioides were tested. The results showed that the essential oil of A. scoparia was more effective by the agar diffusion method; the EC50 value was 9.32 µL/mL. The inhibition rate was 100%, at a concentration of 10 μL/mL, through the spore germination method. The morphological changes of the mycelium were observed by scanning electron microscopy (SEM), the mycelia treated with essential oils showed shrinking, deformity, fracture, and dryness through SEM. A. scoparia essential oil was inoculated in vivo and subjected to paroxysm testing under natural conditions. A. scoparia had significantly inhibitory activity, and the inhibition rate was 66.23% in vivo inoculation tests after 10 days. The inhibition rate was 92.06% in the paroxysm test under natural conditions after 15 days. Finally, A. acoparia essential oil was analyzed by gas chromatography-mass spectrometry. The main compounds were 2-ethenyl-Naphthalene (23.5%), 2,4-pentadiynyl-Benzene (11.8%), 1,2-dimethoxy-4-(2-propenyl)-Benzene (10.0%), β-Pinene (8.0%), and 1-methyl-4-(1-methylethyl)-1,4-Cyclohexadiene (6.3%). The results have revealed the potential use of A. scoparia essential oil against post-harvest fungal pathogens C. gloeosporioides.
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Zhao Y, Zhu K, Li J, Zhao Y, Li S, Zhang C, Xiao D, Yu A. High-efficiency production of bisabolene from waste cooking oil by metabolically engineered Yarrowia lipolytica. Microb Biotechnol 2021; 14:2497-2513. [PMID: 33605546 PMCID: PMC8601197 DOI: 10.1111/1751-7915.13768] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/24/2021] [Accepted: 01/27/2021] [Indexed: 12/13/2022] Open
Abstract
The natural plant product bisabolene serves as a precursor for the production of a wide range of industrially relevant chemicals. However, the low abundance of bisabolene in plants renders its isolation from plant sources non-economically viable. Therefore, creation of microbial cell factories for bisabolene production supported by synthetic biology and metabolic engineering strategies presents a more competitive and environmentally sustainable method for industrial production of bisabolene. In this proof-of-principle study, for the first time, we engineered the oleaginous yeast Yarrowia lipolytica to produce α-bisabolene, β-bisabolene and γ-bisabolene through heterologous expression of the α-bisabolene synthase from Abies grandis, the β-bisabolene synthase gene from Zingiber officinale and the γ-bisabolene synthase gene from Helianthus annuus respectively. Subsequently, two metabolic engineering approaches, including overexpression of the endogenous mevalonate pathway genes and introduction of heterologous multidrug efflux transporters, were employed in order to improve bisabolene production. Furthermore, the fermentation conditions were optimized to maximize bisabolene production by the engineered Y. lipolytica strains from glucose. Finally, we explored the potential of the engineered Y. lipolytica strains for bisabolene production from the waste cooking oil. To our knowledge, this is the first report of bisabolene production in Y. lipolytica using metabolic engineering strategies. These findings provide valuable insights into the engineering of Y. lipolytica for a higher-level production of bisabolene and its utilization in converting waste cooking oil into various industrially valuable products.
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Affiliation(s)
- Yakun Zhao
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Kun Zhu
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Jian Li
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Yu Zhao
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Shenglong Li
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Cuiying Zhang
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Dongguang Xiao
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
| | - Aiqun Yu
- State Key Laboratory of Food Nutrition and SafetyKey Laboratory of Industrial Fermentation Microbiology of the Ministry of EducationTianjin Key Laboratory of Industrial MicrobiologyCollege of BiotechnologyTianjin University of Science and TechnologyNo. 29 the 13th Street TEDATianjin300457China
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Valková V, Ďúranová H, Galovičová L, Štefániková J, Vukovic N, Kačániová M. The Citrus reticulata essential oil: evaluation of antifungal activity against penicillium species related to bakery products spoilage. POTRAVINARSTVO 2021. [DOI: 10.5219/1695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Fungal food spoilage plays a key role in the deterioration of food products, and finding a suitable natural preservative can solve this problem. Therefore, antifungal activity of green mandarin (Citrus reticulata) essential oil (GMEO) in the vapor phase against the growth of Penicillium (P.) expansum and P. chrysogenum inoculated on wheat bread (in situ experiment) was investigated in the current research. The volatile compounds of the GMEO were analyzed by a gas chromatograph coupled to a mass spectrometer (GC–MS), and its antioxidant activity was determined by testing free radical-scavenging capacity (DPPH assay). Moreover, the disc diffusion method was used to analyze the antifungal activity of GMEO in in vitro conditions. The results demonstrate that the Citrus reticulata EO consisted of α-limonene as the most abundant component (71.5%), followed by γ-terpinene (13.9%), and β-pinene (3.5%), and it displayed the weak antioxidant activity with the value of inhibition 5.6 ±0.7%, which corresponds to 103.0 ±6.4 µg TEAC.mL-1. The findings from the GMEO antifungal activity determination revealed that values for the inhibition zone with disc diffusion method ranged from 0.00 ±0.00 (no antifungal effectiveness) to 5.67 ±0.58 mm (moderate antifungal activity). Finally, exposure of Penicillium strains growing on bread to GMEO in vapor phase led to the finding that 250 μL.L-1 of GMEO exhibited the lowest value for mycelial growth inhibition (MGI) of P. expansum (-51.37 ±3.01%) whose negative value reflects even supportive effect of the EO on the microscopic fungus growth. On the other hand, GMEO at this concentration (250 μL.L-1) resulted in the strongest inhibitory action (MGI: 54.15 ±1.15%) against growth of P. chrysogenum. Based on the findings it can be concluded that GMEO in the vapor phase is not an effective antifungal agent against the growth of P. expansum inoculated on bread; however, its antifungal potential manifested against P. chrysogenum suggests GMEO to be an appropriate alternative to the use of chemical inhibitors for bread preservation.
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Parikh L, Agindotan BO, Burrows ME. Antifungal Activity of Plant-Derived Essential Oils on Pathogens of Pulse Crops. PLANT DISEASE 2021; 105:1692-1701. [PMID: 32940579 DOI: 10.1094/pdis-06-20-1401-re] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Pulse crops such as chickpeas, lentils, and dry peas are grown widely for human and animal consumption. Major yield- and quality-limiting constraints include diseases caused by fungi and oomycetes. The environmental and health concerns of synthetic fungicides used for disease management, emergence of fungicide-resistant pathogens, and demand for organic pulse crop products necessitate the search for effective alternatives. Safe and environmentally friendly plant-derived essential oils (EOs) have been reported effective against some pathogenic fungi. Growth on EO-amended growth medium and an inverted Petri plate assay were used to determine the effects of 38 oils and their volatiles on mycelial growth and spore germination of important pathogenic fungi and oomycetes: Aphanomyces euteiches, Botrytis cinerea, Colletotrichum lentis, Didymella pisi, D. rabiei, D. lentis, Fusarium avenaceum, Stemphylium beticola, Sclerotinia sclerotiorum, and Pythium sylvaticum. Palmarosa, oregano, clove, cinnamon, lemongrass, citronella, and thyme oils incorporated in media inhibited mycelial growth of all the pathogens by 100% at 1:1,000 to 1:4,000 dilution. In addition, thyme oil (1:500 dilution) showed complete inhibition of conidial germination (0% germination) of F. avenaceum and D. pisi. All seven EO volatiles inhibited mycelial growth of all pathogens by 50 to 100% except for B. cinerea and S. sclerotiorum. EO effects on mycelial growth were fungistatic, fungicidal, or both and varied by EO. EOs show potential for management of major crop diseases in organic and conventional production systems.
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Affiliation(s)
- Lipi Parikh
- Department of Plant Sciences & Plant Pathology, Montana State University, Bozeman, MT 59717
| | - Bright O Agindotan
- U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Center for Plant Health Science and Technology, Beltsville, MD 21043
| | - Mary E Burrows
- Department of Plant Sciences & Plant Pathology, Montana State University, Bozeman, MT 59717
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29
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Transcriptional and metabolite analysis reveal a shift in fruit quality in response to calcium chloride treatment on "Kyoho" grapevine. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:2246-2257. [PMID: 33967321 DOI: 10.1007/s13197-020-04735-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/09/2020] [Accepted: 08/13/2020] [Indexed: 10/23/2022]
Abstract
'Kyoho' grapevine (Vitis vinifera) treated by calcium ions solution has been proved as an effective treatment to extend grape quality during storage to reduce disease, but its molecular mechanism was not clear yet. In the current work, grape berries were treated with different concentration of Calcium chloride (CaCl2) solution, and their effects on antioxidant enzyme activity and transcriptome and metabolome in fruit were investigated. CaCl2 treatments reduced weight loss and inhibited the decrement of flesh firmness. 80 mM CaCl2 significantly increased the activity of antioxidant enzymes POD, SOD and CAT, which was the optimum experimental concentration. The study showed that the expression level of heat shock transcription factor and UBX which involved in endoplasmic reticulum stress and degradation pathway increased significantly. Moreover, the corresponding metabolites, such as heat shock protein and organic acid, also increased significantly. The misfolded proteins are transported to the cytosol for degradation, so that the preservation ability of grape is improved.
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30
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Bika R, Baysal-Gurel F, Jennings C. Botrytis cinereamanagement in ornamental production: a continuous battle. CANADIAN JOURNAL OF PLANT PATHOLOGY 2021; 43:345-365. [PMID: 0 DOI: 10.1080/07060661.2020.1807409] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/04/2020] [Indexed: 05/26/2023]
Affiliation(s)
- Ravi Bika
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Otis L. Floyd Nursery Research Center, 472 Cadillac Lane, McMinnville, TN 37110, USA
| | - Fulya Baysal-Gurel
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Otis L. Floyd Nursery Research Center, 472 Cadillac Lane, McMinnville, TN 37110, USA
| | - Christina Jennings
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Otis L. Floyd Nursery Research Center, 472 Cadillac Lane, McMinnville, TN 37110, USA
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31
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Cibanal IL, Fernández LA, Murray AP, Pellegrini CN, Gallez LM. Propolis extract and oregano essential oil as biofungicides for garlic seed cloves: in vitro assays and synergistic interaction against Penicillium allii. J Appl Microbiol 2021; 131:1909-1918. [PMID: 33754439 DOI: 10.1111/jam.15081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/26/2021] [Accepted: 03/16/2021] [Indexed: 11/30/2022]
Abstract
AIMS This study aimed to evaluate in vitro individual and combined antifungal activity of propolis extract (PE) and oregano essential oil (OEO) against Penicillium allii, causal agent of blue mould disease. The chemical characterization of both products was also included. METHODS AND RESULTS Chromatographic analysis of PE and OEO confirmed the presence of bioactive compounds. The antifungal susceptibility assays showed that PE and OEO were highly active against the mycelial growth and conidial germination of P. allii. PE and OEO MICs were 12·5 and 1·5 μl ml-1 , respectively. The MFCs of these products were 50 and 3·1 μl ml-1 , respectively. PE acted mainly through diffusion, while OEO acted by a mixed contribution of vapour and diffusion. Synergism and additive effect between both products were found in some combination ratios. CONCLUSION PE and OEO, both natural products with different chemical composition, have a strong antifungal activity against P. allii and show a favourable interaction causing synergism. SIGNIFICANCE AND IMPACT OF THE STUDY The results of this study indicated the potential use of PE combined with OEO as a non-conventional strategy towards the formulation of a biofungicide to control blue mould disease in garlic seed-cloves.
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Affiliation(s)
- I L Cibanal
- Laboratorio de Estudios Apícola (LAbEA-CIC), Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - L A Fernández
- Laboratorio de Estudios Apícola (LAbEA-CIC), Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - A P Murray
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - C N Pellegrini
- Laboratorio de Estudios Apícola (LAbEA-CIC), Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - L M Gallez
- Laboratorio de Estudios Apícola (LAbEA-CIC), Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina
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Ahmad TAEAL. Advanced Methods in Controlling Late Blight Disease in Potatoes. MITIGATING ENVIRONMENTAL STRESSES FOR AGRICULTURAL SUSTAINABILITY IN EGYPT 2021:289-310. [DOI: 10.1007/978-3-030-64323-2_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Abdullahi A, Ahmad K, Ismail IS, Asib N, Ahmed OH, Abubakar AI, Siddiqui Y, Ismail MR. Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases. THE PLANT PATHOLOGY JOURNAL 2020; 36:515-535. [PMID: 33312089 PMCID: PMC7721540 DOI: 10.5423/ppj.rw.05.2020.0077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/26/2020] [Accepted: 09/28/2020] [Indexed: 05/26/2023]
Abstract
Essential oils (EOs) have gained a renewed interest in many disciplines such as plant disease control and medicine. This review discusses the components of ginger EOs, their mode of action, and their potential nanotechnology applications in controlling tropical plant diseases. Gas chromatography-mass spectroscopy (GC-MS), high-performance liquid chromatography, and headspace procedures are commonly used to detect and profile their chemical compositions EOs in ginger. The ginger EOs are composed of monoterpenes (transcaryophyllene, camphene, geranial, eucalyptol, and neral) and sesquiterpene hydrocarbons (α-zingiberene, ar-curcumene, β-bisabolene, and β-sesquiphellandrene). GC-MS analysis of the EOs revealed many compounds but few compounds were revealed using the headspace approach. The EOs have a wide range of activities against many phytopathogens. EOs mode of action affects both the pathogen cell's external envelope and internal structures. The problems associated with solubility and stability of EOs had prompted the use nanotechnology such as nanoemulsions. The use of nanoemulsion to increase efficiency and supply of EOs to control plant diseases control was discussed in this present paper. The findings of this review paper may accelerate the effective use of ginger EOs in controlling tropical plant diseases.
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Affiliation(s)
- Adamu Abdullahi
- Department of Biological Sciences, Faculty of Science, Sokoto State University, P.M.B 234, Birnin Kebbi Road, Sokoto State, Nigeria
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - Khairulmazmi Ahmad
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia
- Institute of Plantation Studies (IKP), Universiti Putra Malaysia, 4400 Serdang, Selangor Darul Ehsan, Malaysia
- Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, 300 Serdang, Selangor Darul Ehsan, Malaysia
| | - Intan Safinar Ismail
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - Norhayu Asib
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - Osumanu Haruna Ahmed
- Department of Crop Science, Faculty of Agriculture and Food Sciences, Bintulu Campus Sarawak, Universiti Putra Malaysia, 97008 Bintulu, Sarawak, Malaysia
- Institute of Ecosystem Science Borneo, Faculty of Agriculture and Food Sciences, Bintulu Campus Sarawak, Universiti Putra Malaysia, 9008 Bintulu, Sarawak, Malaysia
| | - Abubakar Ismaila Abubakar
- Department of Integrated Science, School of Secondary Education (Science), Federal College of Education (Technical) Bichi, P.M.B 3473, Kano State, Nigeria
| | - Yasmeen Siddiqui
- Institute of Plantation Studies (IKP), Universiti Putra Malaysia, 4400 Serdang, Selangor Darul Ehsan, Malaysia
| | - Mohd Razi Ismail
- Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, 300 Serdang, Selangor Darul Ehsan, Malaysia
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Antimicorbial Potency of Major Functional Foods’ Essential Oils in Liquid and Vapor Phases: A Short Review. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Due to the increasing risk of chemical contaminations in the application of synthetic fungicides, the use of plant essential oils and extracts has recently been increased. In the present review, the antimicrobial potential of the most active plant-food essential oils in liquid and vapor phases has been reviewed. The volatile isothiocyanates, aldehydes, and phenols, including allyl isothiocyanate, carvacrol, thymol, and eugenol, are considered to be the predominant components of essential oils, possessing significant antimicrobial activities. These components alone or in mixture can be effective. Overall, the antimicrobial activity of aroma compounds depends on the plant species, concentration, and method of application. This review provides useful information about the inhibitory application of the most common plant-foods’ essential oils in liquid and vapor phases against the growth of pathogenic microorganisms. Essential oils (EOs) are promising natural antimicrobial alternatives in food processing facilities. Although the food industry primarily uses spices and herbs to impart flavor, aroma, and pungency to foods, potent EOs represent interesting sources of natural products for food preservation.
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Developmentally regulated activation of defense allows for rapid inhibition of infection in age-related resistance to Phytophthora capsici in cucumber fruit. BMC Genomics 2020; 21:628. [PMID: 32917129 PMCID: PMC7488727 DOI: 10.1186/s12864-020-07040-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 08/31/2020] [Indexed: 11/10/2022] Open
Abstract
Background Age-related resistance (ARR) is a developmentally regulated phenomenon conferring resistance to pathogens or pests. Although ARR has been observed in several host-pathogen systems, the underlying mechanisms are largely uncharacterized. In cucumber, rapidly growing fruit are highly susceptible to Phytophthora capsici but become resistant as they complete exponential growth. We previously demonstrated that ARR is associated with the fruit peel and identified gene expression and metabolomic changes potentially functioning as preformed defenses. Results Here, we compare the response to infection in fruit at resistant and susceptible ages using microscopy, quantitative bioassays, and weighted gene co-expression analyses. We observed strong transcriptional changes unique to resistant aged fruit 2–4 h post inoculation (hpi). Microscopy and bioassays confirmed this early response, with evidence of pathogen death and infection failure as early as 4 hpi and cessation of pathogen growth by 8–10 hpi. Expression analyses identified candidate genes involved in conferring the rapid response including those encoding transcription factors, hormone signaling pathways, and defenses such as reactive oxygen species metabolism and phenylpropanoid biosynthesis. Conclusion The early pathogen death and rapid defense response in resistant-aged fruit provide insight into potential mechanisms for ARR, implicating both pre-formed biochemical defenses and developmentally regulated capacity for pathogen recognition as key factors shaping age-related resistance.
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Dehyab AS, Bakar MFA, AlOmar MK, Sabran SF. A review of medicinal plant of Middle East and North Africa (MENA) region as source in tuberculosis drug discovery. Saudi J Biol Sci 2020; 27:2457-2478. [PMID: 32884430 PMCID: PMC7451596 DOI: 10.1016/j.sjbs.2020.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 07/05/2020] [Accepted: 07/05/2020] [Indexed: 11/28/2022] Open
Abstract
Tuberculosis (TB) is a disease that affects one-third of the world's population. Although currently available TB drugs have many side effects, such as nausea, headache and gastrointestinal discomfort, no new anti-TB drugs have been produced in the past 30 years. Therefore, the discovery of a new anti-TB agent with minimal or no side effects is urgently needed. Many previous works have reported the effects of medicinal plants against Mycobacterium tuberculosis (MTB). However, none have focused on medicinal plants from the Middle Eastern and North African (MENA) region. This review highlights the effects of medicinal plants from the MENA region on TB. Medicinal plants from the MENA region have been successfully used as traditional medicine and first aid against TB related problems. A total of 184 plants species representing 73 families were studied. Amongst these species, 93 species contained more active compounds with strong anti-MTB activity (crude extracts and/or bioactive compounds with activities of 0-100 µg/ml). The extract of Inula helenium, Khaya senegalensis, Premna odorata and Rosmarinus officinalis presented the strongest anti-MTB activity. In addition, Boswellia papyrifera (Del) Hochst olibanum, Eucalyptus camaldulensis Dehnh leaves (river red gum), Nigella sativa (black cumin) seeds and genus Cymbopogon exhibited anti-TB activity. The most potent bioactive compounds included alantolactone, octyl acetate, 1,8-cineole, thymoquinone, piperitone, α- verbenol, citral b and α-pinene. These compounds affect the permeability of microbial plasma membranes, thus kill the mycobacterium spp. As a conclusion, plant species collected from the MENA region are potential sources of novel drugs against TB.
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Affiliation(s)
- Ali Sami Dehyab
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM) – Pagoh Campus, 84600 Muar, Johor, Malaysia
- Department of Medical Laboratory Techniques, Al Maarif University College, Alanbar, Iraq
| | - Mohd Fadzelly Abu Bakar
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM) – Pagoh Campus, 84600 Muar, Johor, Malaysia
| | | | - Siti Fatimah Sabran
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM) – Pagoh Campus, 84600 Muar, Johor, Malaysia
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Chemical Composition of a Supercritical Fluid (Sfe-CO 2) Extract from Baeckea frutescens L. Leaves and Its Bioactivity Against Two Pathogenic Fungi Isolated from the Tea Plant ( Camellia sinensis (L.) O. Kuntze). PLANTS 2020; 9:plants9091119. [PMID: 32872535 PMCID: PMC7569807 DOI: 10.3390/plants9091119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/26/2022]
Abstract
Colletotrichum gloeosporioides and Pseudopestalotiopsis camelliae-sinensis are the two most important tea plant (Camellia sinensis L.) pathogenic fungi. Interest in natural plant extracts as alternatives to synthetic chemical fungicides to control plant pathogens is growing. In this study, the volatile fraction of Baeckea frutescens L. was extracted by supercritical fluid extraction (SFE-CO2), and its chemical composition was analyzed, and investigated for its antifungal activity against C. gloeosporioides and P. camelliae. The major constituents of the volatile fraction were β-caryophyllene (28.05%), α-caryophyllene (24.02%), δ-cadinene (6.29%) and eucalyptol (5.46%) in B. frutescens SFE-CO2 extracts. The terpineol, linalool, terpinen-4-ol and eucalyptol showed strong contact antifungal activity against P. camelliae and C. gloeosporioides with median inhibitory concentration (MIC50) in the range of 0.69 μL/mL to 2.79 μL/mL and 0.62 μL/mL to 2.18 μL/mL, respectively. Additionally, the volatile fraction had high fumigation antifungal activity against P. camelliae and C. gloeosporioides with an inhibition rate between 20.87% and 92.91%. Terpineol presented the highest antifungal activity in the contact and fumigation toxicity assays. Terpineol, linalool, terpinen-4-ol and eucalyptol were associated with the most active chemical compounds in the volatile fraction against the fungi. The results suggest that B. frutescens SFE-CO2 extracts are potential ingredients to develop a natural fungicide for control of tea plant pathogens.
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Hosseini S, Amini J, Saba MK, Karimi K, Pertot I. Preharvest and Postharvest Application of Garlic and Rosemary Essential Oils for Controlling Anthracnose and Quality Assessment of Strawberry Fruit During Cold Storage. Front Microbiol 2020; 11:1855. [PMID: 33013725 PMCID: PMC7461828 DOI: 10.3389/fmicb.2020.01855] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/15/2020] [Indexed: 11/13/2022] Open
Abstract
This study assessed the feasibility of using essential oils (EOs) against Colletotrichum nymphaeae inciting strawberry anthracnose. Two EOs, extracted from Allium sativum (garlic) and Rosmarinus officinalis (rosemary), were selected because their fungicide efficacy was already well characterized under laboratory and greenhouse conditions. We characterized both EOs in terms of efficacy and impact on qualitative traits and sensory quality of strawberry fruit. The gas chromatography–mass spectrometry analysis confirmed the Diallyl trisulfide (29.08%) and (α)-pinene (15.779%) as the main components of A. sativum and R. officinalis EOs, respectively. Both A. sativum and R. officinalis EOs significantly inhibited the mycelial growth and conidial germination of C. nymphaeae in contact and vapor assays compared with untreated control. However, EC50 assay indicated A. sativum EO was more effective than R. officinalis EO against the pathogen. Malformations of the vegetative structures of the pathogen exposed to both EOs were revealed as shriveled, collapsed, and swelling mycelia in the cultures. Both EOs confirmed their efficacy under in vivo and greenhouse conditions; in fact, they significantly reduced the development of fruit decay and anthracnose disease incidence and severity, compared with untreated controls. Both EOs preserved sensory attributes and quality parameters of strawberry fruit including firmness, total soluble solids, ascorbic acid, antioxidant activity, and anthocyanin, but may leave unwanted smells. These findings suggest that two EOs can potentially represent an alternative to synthetic chemical fungicides against C. nymphaeae preserving fruit quality factors, although their cost and the impact on the fruit odor must be carefully taken into consideration before developing a commercial product.
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Affiliation(s)
- Somaieh Hosseini
- Department of Plant Protection, College of Agriculture, University of Kurdistan, Sanandaj, Iran
| | - Jahanshir Amini
- Department of Plant Protection, College of Agriculture, University of Kurdistan, Sanandaj, Iran
| | | | - Kaivan Karimi
- Safiabad Agricultural Research and Education and Natural Resources Center, Agricultural Research, Education and Extension Organization (AREEO), Dezful, Iran
| | - Ilaria Pertot
- Department of Sustainable Agro-Ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all'Adige, Italy.,Center Agriculture Food Environment (C3A), University of Trento, San Michele all'Adige, Italy
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Inhibitory Properties of Aldehydes and Related Compounds against Phytophthora infestans-Identification of a New Lead. Pathogens 2020; 9:pathogens9070542. [PMID: 32645837 PMCID: PMC7400633 DOI: 10.3390/pathogens9070542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 11/16/2022] Open
Abstract
The pathogen Phytophthora infestans is responsible for catastrophic crop damage on a global scale which totals billions of euros annually. The discovery of new inhibitors of this organism is of paramount agricultural importance and of critical relevance to food security. Current strategies for crop treatment are inadequate with the emergence of resistant strains and problematic toxicity. Natural products such as cinnamaldehyde have been reported to have fungicidal properties and are the seed for many new discovery research programmes. We report a probe of the cinnamaldehyde framework to investigate the aldehyde subunit and its role in a subset of aromatic aldehydes in order to identify new lead compounds to act against P. infestans. An ellipticine derivative which incorporates an aldehyde (9-formyl-6-methyl ellipticine, 34) has been identified with exceptional activity versus P. infestans with limited toxicity and potential for use as a fungicide.
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Szekely-Varga Z, González-Orenga S, Cantor M, Jucan D, Boscaiu M, Vicente O. Effects of Drought and Salinity on Two Commercial Varieties of Lavandula angustifolia Mill. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9050637. [PMID: 32429357 DOI: 10.15835/nbha48412150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 05/25/2023]
Abstract
Global warming is not only affecting arid and semi-arid regions but also becoming a threat to agriculture in Central and Eastern European countries. The present study analyzes the responses to drought and salinity of two varieties of Lavandula angustifolia cultivated in Romania. Lavender seedlings were subjected to one month of salt stress (100, 200, and 300 mM NaCl) and water deficit (complete withholding of irrigation) treatments. To assess the effects of stress on the plants, several growth parameters and biochemical stress markers (photosynthetic pigments, mono and divalent ions, and different osmolytes) were determined in control and stressed plants after the treatments. Both stress conditions significantly inhibited the growth of the two varieties, but all plants survived the treatments, indicating a relative stress tolerance of the two varieties. The most relevant mechanisms of salt tolerance are based on the maintenance of foliar K+ levels and the accumulation of Ca2+ and proline as a functional osmolyte in parallel with increasing external salinities. Under water stress, significant increases of Na+ and K+ concentrations were detected in roots, indicating a possible role of these cations in osmotic adjustment, limiting root dehydration. No significant differences were found when comparing the stress tolerance and stress responses of the two selected lavender varieties.
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Affiliation(s)
- Zsolt Szekely-Varga
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania
- Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Sara González-Orenga
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Maria Cantor
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Denisa Jucan
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Monica Boscaiu
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Oscar Vicente
- Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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Szekely-Varga Z, González-Orenga S, Cantor M, Jucan D, Boscaiu M, Vicente O. Effects of Drought and Salinity on Two Commercial Varieties of Lavandula angustifolia Mill. PLANTS 2020; 9:plants9050637. [PMID: 32429357 PMCID: PMC7284986 DOI: 10.3390/plants9050637] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 11/16/2022]
Abstract
Global warming is not only affecting arid and semi-arid regions but also becoming a threat to agriculture in Central and Eastern European countries. The present study analyzes the responses to drought and salinity of two varieties of Lavandula angustifolia cultivated in Romania. Lavender seedlings were subjected to one month of salt stress (100, 200, and 300 mM NaCl) and water deficit (complete withholding of irrigation) treatments. To assess the effects of stress on the plants, several growth parameters and biochemical stress markers (photosynthetic pigments, mono and divalent ions, and different osmolytes) were determined in control and stressed plants after the treatments. Both stress conditions significantly inhibited the growth of the two varieties, but all plants survived the treatments, indicating a relative stress tolerance of the two varieties. The most relevant mechanisms of salt tolerance are based on the maintenance of foliar K+ levels and the accumulation of Ca2+ and proline as a functional osmolyte in parallel with increasing external salinities. Under water stress, significant increases of Na+ and K+ concentrations were detected in roots, indicating a possible role of these cations in osmotic adjustment, limiting root dehydration. No significant differences were found when comparing the stress tolerance and stress responses of the two selected lavender varieties.
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Affiliation(s)
- Zsolt Szekely-Varga
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania; (Z.S.-V.); (M.C.)
- Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain;
| | - Sara González-Orenga
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (S.G.-O.); (M.B.)
| | - Maria Cantor
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania; (Z.S.-V.); (M.C.)
| | - Denisa Jucan
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania; (Z.S.-V.); (M.C.)
- Correspondence:
| | - Monica Boscaiu
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; (S.G.-O.); (M.B.)
| | - Oscar Vicente
- Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain;
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Natural Products, Traditional Uses and Pharmacological Activities of the Genus Biebersteinia (Biebersteiniaceae). PLANTS 2020; 9:plants9050595. [PMID: 32392890 PMCID: PMC7285204 DOI: 10.3390/plants9050595] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/25/2020] [Accepted: 04/28/2020] [Indexed: 12/24/2022]
Abstract
Medicinal plants have been known as a rich source of natural products (NPs). Due to their diverse chemical structures and remarkable pharmacological activities, NPs are regarded as important repertoires for drug discovery and development. Biebersteinia plant species belong to the Biebersteiniaceae family, and have been used in folk medicines in China and Iran for ages. However, the chemical properties, bioactivities and modes of action of the NPs produced by medicinal Biebersteinia species are poorly understood despite the fact that there are only four known Biebersteinia species worldwide. Here, we reviewed the chemical classifications and diversity of the various NPs found in the four known Biebersteinia species. We found that the major chemical categories in these plants include flavonoids, alkaloids, phenylpropanoids, terpenoids, essential oils and fatty acids. We also discussed the anti-inflammatory, analgesic, antibacterial, antioxidant, antihypertensive and hypoglycemic effects of the four Biebersteinia species. We believe that the present review will facilitate the exploration of traditional uses and pharmacological properties of Biebersteinia species, extraction of the NPs and elucidation of their molecular mechanisms, as well as the development of novel drugs based on the reported properties and mode-of-action.
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Chen X, Wang W, Liu F, Bian Y. Improved analysis of propamocarb and cymoxanil for the investigation of residue behavior in two vegetables with different cultivation conditions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:3157-3163. [PMID: 32096228 DOI: 10.1002/jsfa.10350] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/18/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND A modified quick, easy, cheap, effective, rugged and safe (QuEChERS) method was developed for the simultaneous determination of highly water-soluble propamocarb and hydrophobic cymoxanil in potato tuber and tomato fruit. Residue behaviors of the fungicides in open field or greenhouse were investigated for the safety evaluation of these two pesticides, and the effects of cultivation conditions, fungicide exposure and fruit size of tomato on residue level are discussed. RESULTS Vegetable samples were extracted with ammonia-acetonitrile, further purified with multiwall carbon nanotubes and analyzed using high-performance liquid chromatography tandem mass spectrometry. The method was validated with fortified samples at different concentration levels (0.05-2.0 mg kg-1 ). Average recoveries ranged from 84 to 111% with relative standard deviations between 0.3 and 5.5%. Limits of quantification (LOQs) were set at the lowest spiking level of 0.05 mg kg-1 . In tomato and cherry tomato, initial residue level of cymoxanil was below LOQ at recommended good agricultural practices. Propamocarb residues were affected by the cultivation conditions, with highest levels of 0.52 and 0.72 mg kg-1 in open field and greenhouse, respectively. In addition, residues of propamocarb in cherry tomatoes were found to be present at 1.25 mg kg-1 . CONCLUSIONS The field trial results showed that propamocarb and cymoxanil residues in potato tubers were below LOQ due to the tubers not being exposed to sprayed pesticides. The unexpected high residue levels in cherry tomato seem to indicate that cherry tomato with small size presents certain accumulative effects of propamocarb. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xiaochu Chen
- Laboratory of Testing and Standardization, Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute), Guangzhou, China
- College of Science, China Agricultural University, Beijing, China
| | - Wenzhuo Wang
- College of Science, China Agricultural University, Beijing, China
| | - Fengmao Liu
- College of Science, China Agricultural University, Beijing, China
| | - Yanli Bian
- College of Science, China Agricultural University, Beijing, China
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Curative and Suppressive Activities of Essential Tea Tree Oil against Fungal Plant Pathogens. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10040609] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Timorex Gold based on the essential tea tree oil (TTO) derived from the Australian tea tree oil (Melaleuca alternifolia) plant has demonstrated high efficacy and a strong curative activity against black Sigatoka in banana and controlled it in stages 1, 2, 3, and 4 of disease development. Transmission electron microscope (TEM) examination of infected leaf sections treated with Timorex Gold revealed disruption of the fungal cell membrane and destruction of the fungal cell wall in disease development stages 4 and 5. Mineral oil and the fungicide difenoconazole, when applied alone, had no curative effect and did not disrupt the fungal cell wall or membrane, similar to the untreated control tissue. A single spray of Timorex Gold effectively controlled and suppressed powdery mildew in cucumber by causing the disappearance of 99% of established colonies recorded 1 or 2 days after the application and was effective for up to 8 days after application. Scanning electron microscope (SEM) examination of infected and Timorex Gold-treated leaves indicated strong shrinkage and disruption of fungal hyphae and conidial cells. The curative and suppressive modes of action of the Timorex Gold may explain its success in controlling both diseases.
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Hosseni S, Amini J, Rafei JN, Khorshidi J. Management of Strawberry Anthracnose Using Plant Essential Oils as Bio-fungicides, and Evaluation of Their Effects on Quality of Strawberry Fruit. J Oleo Sci 2020; 69:377-390. [PMID: 32249265 DOI: 10.5650/jos.ess19119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Colletotrichum nymphaeae is the causal agent of strawberry anthracnose, which is one of the most important disease affecting strawberry plant in Iran. This research aimed to apply the selected plant essential oils (EOs) such as Achillea millefolium, Mentha longifolia, and Ferula kuma to the management of strawberry anthracnose disease under in vitro, in vivo, and greenhouse conditions. In vitro tests indicated that all the EOs and fungicide were able to inhibit mycelial growth and conidial germination of the pathogen. Scanning electron microscopy (SEM) revealed that EOs significantly suppressed the mycelia growth and caused a change in morphology of fungal mycelia. The severity of strawberry anthracnose disease was significantly (p ≤ 0.05) reduced by all EOs under in vivo and greenhouse conditions. Results of all experiments showed that M. longifolia EO was the best EO to control C. nymphaeae. Also, EOs almost reduced weight loss and preserved firmness, ascorbic acid, total phenol, antioxidant activity (DPPH), and enzyme peroxidase activity in treated fruit. Moreover, EOs preserved the sensory quality of strawberry fruit during the storage period so that there were no significant differences between treatments (EOs) in their appearance, flavor, odor attributes, and overall evaluation compared to the control. Our results indicate that EOs are excellent bio-fungicides for the management of strawberry anthracnose.
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Affiliation(s)
- Somaieh Hosseni
- Department of Plant Protection, College of Agriculture, University of Kurdistan
| | - Jahanshir Amini
- Department of Plant Protection, College of Agriculture, University of Kurdistan
| | - Javad Nazemi Rafei
- Department of Plant Protection, College of Agriculture, University of Kurdistan
| | - Jalal Khorshidi
- Department of Horticultural Science, University of Kurdistan
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46
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Growth control of molds isolated from smoked fermented sausages using basil and caraway essential oils, in vitro and in vivo. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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47
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Dukare AS, Singh RK, Jangra RK, Bhushan B. Non-Fungicides-Based Promising Technologies for Managing Post-Production Penicillium Induced Spoilage in Horticultural Commodities: A Comprehensive Review. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1727497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ajinath Shridhar Dukare
- Division of Horticultural Crop Processing, ICAR- Central Institute of Post Harvest Engineering and Technology (CIPHET), Abohar/Ludhiana, India
| | - Rajesh Kumar Singh
- ICAR- Central Institute of Post Harvest Engineering and Technology (CIPHET), Abohar/Ludhiana, India
| | - Ramesh Kumar Jangra
- Division of Horticultural Crop Processing, ICAR- Central Institute of Post Harvest Engineering and Technology (CIPHET), Abohar/Ludhiana, India
| | - Bharat Bhushan
- Plant Biochemistry, ICAR-Indian Institute of Maize Research, Ludhiana, India
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Tedesco P, Beraldo P, Massimo M, Fioravanti ML, Volpatti D, Dirks R, Galuppi R. Comparative Therapeutic Effects of Natural Compounds Against Saprolegnia spp. (Oomycota) and Amyloodinium ocellatum (Dinophyceae). Front Vet Sci 2020; 7:83. [PMID: 32154278 PMCID: PMC7047137 DOI: 10.3389/fvets.2020.00083] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 02/03/2020] [Indexed: 11/13/2022] Open
Abstract
The fish parasites Saprolegnia spp. (Oomycota) and Amyloodinium ocellatum (Dinophyceae) cause important losses in freshwater and marine aquaculture industry, respectively. The possible adverse effects of compounds used to control these parasites in aquaculture resulted in increased interest on the search for natural products with antiparasitic activity. In this work, eighteen plant-derived compounds (2′,4′-Dihydroxychalcone; 7-Hydroxyflavone; Artemisinin; Camphor (1R); Diallyl sulfide; Esculetin; Eucalyptol; Garlicin 80%; Harmalol hydrochloride dihydrate; Palmatine chloride; Piperine; Plumbagin; Resveratrol; Rosmarinic acid; Sclareolide; Tomatine, Umbelliferone, and Usnic Acid) have been tested in vitro. Sixteen of these were used to determine their effects on the gill cell line G1B (ATCC®CRL-2536™) and on the motility of viable dinospores of Amyloodinium ocellatum, and thirteen were screened for inhibitory activity against Saprolegnia spp. The cytotoxicity results on G1B cells determined that only two compounds (2′,4′-Dihydroxychalcone and Tomatine) exhibited dose-dependent toxic effects. The highest surveyed concentrations (0.1 and 0.01 mM) reduced cell viability by 80%. Upon lowering the compound concentration the percentage of dead cells was lower than 20%. The same two compounds revealed to be potential antiparasitics by reducing in a dose-dependent manner the motility of A. ocellatum dinospores up to 100%. With respect to Saprolegnia, a Minimum Inhibitory Concentration was found for Tomatine (0.1 mM), Piperine and Plumbagin (0.25 mM), while 2′,4′-Dihydroxychalcone considerably slowed down mycelial growth for 24 h at a concentration of 0.1 mM. Therefore, this research allowed to identify two compounds, Tomatine and 2′,4′-Dihydroxychalcone, effective against both parasites. These compounds could represent promising candidates for the treatment of amyloodiniosis and saprolegniosis in aquaculture. Nevertheless, further in vitro and in vivo tests are required in order to determine concentrations that are effective against the considered pathogens but at the same time safe for hosts, environment and consumers.
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Affiliation(s)
- Perla Tedesco
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Paola Beraldo
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Michela Massimo
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Maria Letizia Fioravanti
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Donatella Volpatti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Ron Dirks
- Future Genomics Technologies BV, Leiden, Netherlands
| | - Roberta Galuppi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
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Aisida SO, Ahmad I, Zhao TK, Maaza M, Ezema FI. Calcination Effect on the Photoluminescence, Optical, Structural, and Magnetic Properties of Polyvinyl Alcohol Doped ZnFe2O4 Nanoparticles. J MACROMOL SCI B 2020. [DOI: 10.1080/00222348.2020.1713519] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Samson O. Aisida
- Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria
- National Centre for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, South Africa
| | - Ishaq Ahmad
- National Centre for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, South Africa
- NPU-NCP Joint International Research Center on Advanced Nanomaterials and Defects Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Ting-kai Zhao
- NPU-NCP Joint International Research Center on Advanced Nanomaterials and Defects Engineering, Northwestern Polytechnical University, Xi’an, China
- School of Materials Science & Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Malik Maaza
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, South Africa
| | - Fabian I. Ezema
- Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, South Africa
- Department of Physics, Faculty of Natural and Applied Sciences, Coal City University, Enugu, Nigeria
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Comparison of antifungal activity of essential oils from different plants against three fungi. Food Chem Toxicol 2019; 134:110821. [PMID: 31533060 DOI: 10.1016/j.fct.2019.110821] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/12/2019] [Accepted: 09/14/2019] [Indexed: 11/20/2022]
Abstract
The antifungal activity of plant essential oils (EOs) extracted by steam distillation from seven different species (Cinnamon, Anise, Clove, Citronella, Peppermint, Pepper, and Camphor) was investigated. Three common fungi were isolated from moldy wheat bread, which were identified as Aspergillus niger, A. oryzae, and A. ochraceus. The antifungal activity of anise, peppermint, clove, cinnamon, pepper, citronella, and camphor EOs from seven different spices was confirmed by agar diffusion assay against three fungi. Among all the EOs, the cinnamon EO showed the highest antifungal activity for all the fungi strains with the largest inhibition zone at the concentration of 800 mg/mL and lowest MIC ranging from 0.0625 to 0.125 mg/mL, followed by clove EO. The remaining EOs exerted moderate inhibitory effects. Further research indicated the substantial inhibitory activities of cinnamon and clove EOs on mycelial growth and spore germination in a dose-dependent manner. Further, the in vivo inhibitory activity of selected EOs on naturally infected bread demonstrated that cinnamon and clove EOs can as be used as natural antifungal agents.
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