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Ibrahimi M, Korichi W, Hafidi M, Lemee L, Ouhdouch Y, Loqman S. Correction: Ibrahimi et al. Marine Actinobacteria: Screening for Predation Leads to the Discovery of Potential New Drugs against Multidrug-Resistant Bacteria. Antibiotics 2020, 9, 91. Antibiotics (Basel) 2024; 13:288. [PMID: 38667055 PMCID: PMC11047406 DOI: 10.3390/antibiotics13040288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 04/29/2024] Open
Abstract
In the original publication, there was a mistake in Figure 1b as published [...].
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Affiliation(s)
- Manar Ibrahimi
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakesh, Morocco; (W.K.); (M.H.); (Y.O.)
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP - CNRS UMR 7285), Université de Poitiers, 4 rue Michel Brunet – TSA 51106, 86073 Poitiers Cedex 9, France;
- Laboratory of Microbiology and Virology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, PO Box 7010, Marrakesh, Morocco;
| | - Wassila Korichi
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakesh, Morocco; (W.K.); (M.H.); (Y.O.)
- Laboratory of Microbiology and Virology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, PO Box 7010, Marrakesh, Morocco;
| | - Mohamed Hafidi
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakesh, Morocco; (W.K.); (M.H.); (Y.O.)
- Agro Bio Sciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, 43150, Morocco
| | - Laurent Lemee
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP - CNRS UMR 7285), Université de Poitiers, 4 rue Michel Brunet – TSA 51106, 86073 Poitiers Cedex 9, France;
| | - Yedir Ouhdouch
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakesh, Morocco; (W.K.); (M.H.); (Y.O.)
- Agro Bio Sciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, 43150, Morocco
| | - Souad Loqman
- Laboratory of Microbiology and Virology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, PO Box 7010, Marrakesh, Morocco;
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Bouhia Y, Hafidi M, Ouhdouch Y, Soulaimani A, Zeroual Y, Lyamlouli K. Microbial intervention improves pollutant removal and semi-liquid organo-mineral fertilizer production from olive mill wastewater sludge and rock phosphate. J Environ Manage 2024; 354:120317. [PMID: 38387346 DOI: 10.1016/j.jenvman.2024.120317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/25/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
Olive mill wastewater sludge (OMWS) represents a residual pollutant generated by the olive oil industry, often stored in exposed evaporation ponds, leading to contamination of nearby land and water resources. Despite its promising composition, the valorization of OMWS remains underexplored compared to olive mill wastewater (OMW). This study aims to identify potent native microbial species within OMWS suitable for bioremediation and its transformation into a high-value organic fertilizer. The microbial screening, based on assessing OMWS tolerance and phosphate solubilization properties in vitro, followed by a singular inoculation using a mixture of OMWS and rock phosphate (RP). Identification of FUN 06 (Galactomyces Geotrichum), a fungal species, employed as an inoculant in the treatment of sterile OMWS supplemented with RP. Results demonstrate that fungal inoculation notably diminished OMWS phytotoxicity while enhancing its physicochemical parameters, nutrient concentrations, and removal of toxic organic compounds by up to 90% compared to the control, and enhances plant growth, offering a sustainable approach to tackle environmental concerns. Additionally, metataxonomic analysis unveiled FUN 06's propensity to enhance the presence of microbial species engaged in pollutant degradation. However, higher RP dosage (10%) appeared to adversely affect bioprocess efficiency, suggesting a potential dose-related effect. Overall, FUN 06, isolated from OMWS evaporation ponds, shows promise for effective bioremediation and sustainable reuse. In fact, our results indicate that targeted microbial inoculation stands as an effective strategy for mitigating pollutants in OMWS, facilitating its conversion into a nutrient-rich organo-mineral fertilizer suitable for direct use, promoting its beneficial reuse in agriculture, thereby presenting a promising avenue for olive oil waste management.
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Affiliation(s)
- Youness Bouhia
- Faculty of Sciences Semlalia, Laboratory of Microbial Biotechnology, AgroSciences and Environment, Labeled Research Unit CNRST N°4 Faculty of Sciences Semlalia, Cadi Ayyad University UCA, Marrakesh, 40000, Morocco.
| | - Mohamed Hafidi
- Faculty of Sciences Semlalia, Laboratory of Microbial Biotechnology, AgroSciences and Environment, Labeled Research Unit CNRST N°4 Faculty of Sciences Semlalia, Cadi Ayyad University UCA, Marrakesh, 40000, Morocco; African Sustainable Agriculture Research Institute (ASARI), College for Sustainable Agriculture and Environmental Sciences University Mohammed VI Polytechnic (UM6P), Laayoune, 70000, Morocco
| | - Yedir Ouhdouch
- Faculty of Sciences Semlalia, Laboratory of Microbial Biotechnology, AgroSciences and Environment, Labeled Research Unit CNRST N°4 Faculty of Sciences Semlalia, Cadi Ayyad University UCA, Marrakesh, 40000, Morocco; African Sustainable Agriculture Research Institute (ASARI), College for Sustainable Agriculture and Environmental Sciences University Mohammed VI Polytechnic (UM6P), Laayoune, 70000, Morocco
| | - Aziz Soulaimani
- Agricultural Innovation and Technology Transfer Center (AITTC), Mohammed VI Polytechnic University (UM6P), Ben Guerir, 43150, Morocco
| | | | - Karim Lyamlouli
- AgroBioSciences Program, College for Sustainable Agriculture and Environmental Sciences, University Mohammed VI Polytechnic (UM6P), Ben Guerir, 43150, Morocco
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Jemo M, Nkenmegne S, Buernor AB, Raklami A, Ambang Z, Souleyamanou A, Ouhdouch Y, Hafidi M. Mycorrhizas and Trichoderma fungi increase the accumulation of secondary metabolites in grain legume leaves and suppress foliar diseases in field-grown conditions of the humid forest of Cameroon. BMC Plant Biol 2023; 23:582. [PMID: 37986040 PMCID: PMC10662906 DOI: 10.1186/s12870-023-04587-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Arbuscular mycorrhizal and Trichoderma fungi alter the synthesis of secondary metabolites of plants and confer tolerance from pathogens attacks. However, there is less supportive evidence from on-field studies confirming the above-mentioned hypothesis, particularly for the humid forest zone of Cameroon where pathogens are important sources of yield losses for legumes such as soybean and common bean. MATERIALS AND METHODS We evaluated the impacts of mycorrhiza isolates of Rhizophagus intraradices (Ri) and Trichoderma asperellum (Ta) fungi and their co-inoculations (Ta x Ri) in the synthetizing of leaves secondary metabolites, foliar disease symptoms, growth, N and P uptake, and yields of three genotypes of soybean (TGx 1485-1D, TGx 1990-93 F, and TGx 1990-97 F) and common beans (NUA-99, DOR-701, and PNN) under field conditions of Cameroon. RESULTS We found that common bean plants showed a lower foliar infection rate but a higher increase in root colonization intensity, shoot dry weight, and N and P uptakes than soybeans when inoculated with Ri and Ta treatment. However, the grain yield of soybean soybean was higher (2000 kg ha 1) than the common bean plants for the Ri × Ta treatment. The soybean genotype TGx 1990-93F had increased root colonization intensity and the lowest foliar infection rate, making it stronger and tolerant to pathogen attacks when co-inoculated with Ri × Ta fungi (F). Bean plants inoculated with Ri and the co-inoculated with Ri × Ta demonstrated lower symptoms of foliar attack, and increased root colonization, particularly the PNN variety. The total amino acid and proline accumulations were higher for soybean than common bean plants due to fungi inoculations, and soybean genotypes accumulated more excellent contents of amino acid and proline in the control (10.1 mg g- 1 fwt) that significantly increased under the Ri × Ta inoculation (13.4 mg g- 1 fwt). CONCLUSIONS Common bean plants inoculated with Ta and Ri fungi accumulated higher phenolic compounds in their leaves that aided them in overcoming the pathogen attacks than soybean plants.
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Affiliation(s)
- Martin Jemo
- AgroBiosciences Program, College of Agriculture and Environmental Sciences (CAES), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir, 43150, Morocco.
| | - Severin Nkenmegne
- Department of Plant Biology, Faculty of Science, University of Yaoundé I, P.O. Box. 812, Yaoundé, Cameroon
| | - Alfred Balenor Buernor
- AgroBiosciences Program, College of Agriculture and Environmental Sciences (CAES), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir, 43150, Morocco
| | - Anas Raklami
- AgroBiosciences Program, College of Agriculture and Environmental Sciences (CAES), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir, 43150, Morocco
| | - Zachee Ambang
- Department of Plant Biology, Faculty of Science, University of Yaoundé I, P.O. Box. 812, Yaoundé, Cameroon
| | - Adamou Souleyamanou
- Department of Plant Biology, Faculty of Science, University of Yaoundé I, P.O. Box. 812, Yaoundé, Cameroon
| | - Yedir Ouhdouch
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, (BioMAgE) Labeled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, University Cadi Ayyad (UCA), Marrakech, BP 2390, Morocco
| | - Mohamed Hafidi
- AgroBiosciences Program, College of Agriculture and Environmental Sciences (CAES), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir, 43150, Morocco
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, (BioMAgE) Labeled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, University Cadi Ayyad (UCA), Marrakech, BP 2390, Morocco
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune, 7000, Morocco
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Bouhia Y, Hafidi M, Ouhdouch Y, Lyamlouli K. Olive mill waste sludge: From permanent pollution to a highly beneficial organic biofertilizer: A critical review and future perspectives. Ecotoxicol Environ Saf 2023; 259:114997. [PMID: 37210993 DOI: 10.1016/j.ecoenv.2023.114997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/21/2023] [Accepted: 05/06/2023] [Indexed: 05/23/2023]
Abstract
Olive mill wastewater sludge (OMWS) is a by-product of the olive extraction process that is attracting substantial attention due to its extremely hazardous effects on aquatic and terrestrial ecosystems. OMWS is a product of the common disposal method of olive oil mill wastewater (OMWW) that accumulates in evaporation ponds. It is estimated that approximately 10 × 106 m3 of OMWS is generated worldwide each year. OMWS is characterized by its significantly variable physicochemical properties and organic pollutant constituents, such as phenols and lipids, which are dependent upon the environmental features of the receiving ponds. Nonetheless, many related studies have recognized the biofertilizer potential of this sludge owing to its high mineral nutrient and organic matter load. OMWS exhibits promising valorization potential in several fields, including agriculture and energy production. Compared to those of OMWW, studies of OMWS are still lacking concerning its composition and characteristics, which are necessary for the future implementation of efficient valorization strategies. The main purpose of this review paper is to fill the gap that exists in the literature by providing a critical analysis of the available data on OMWS production, distribution, characteristics, and properties. Additionally, this work sheds light on important factors affecting OMWS properties, including the variability of the indigenous microbial communities regarding bioremediation. Finally, this review addresses the current and future valorization routes, from detoxification to the development of promising applications in agriculture, energy, and the environment, which could have significant socioeconomic implications for low-income Mediterranean countries.
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Affiliation(s)
- Youness Bouhia
- Faculty of Sciences Semlalia, Laboratory of Microbial Biotechnology, AgroSciences and Environment, labeled Research Unit CNRST N°4 Cadi Ayyad University, Marrakesh 40000, Morocco; AgroBioSciences Program, Mohammed 6 Polytechnic University UM6P, Benguerir 43150, Morocco.
| | - Mohamed Hafidi
- Faculty of Sciences Semlalia, Laboratory of Microbial Biotechnology, AgroSciences and Environment, labeled Research Unit CNRST N°4 Cadi Ayyad University, Marrakesh 40000, Morocco; AgroBioSciences Program, Mohammed 6 Polytechnic University UM6P, Benguerir 43150, Morocco
| | - Yedir Ouhdouch
- Faculty of Sciences Semlalia, Laboratory of Microbial Biotechnology, AgroSciences and Environment, labeled Research Unit CNRST N°4 Cadi Ayyad University, Marrakesh 40000, Morocco; AgroBioSciences Program, Mohammed 6 Polytechnic University UM6P, Benguerir 43150, Morocco
| | - Karim Lyamlouli
- AgroBioSciences Program, Mohammed 6 Polytechnic University UM6P, Benguerir 43150, Morocco
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Boubekri K, Soumare A, Lyamlouli K, Ouhdouch Y, Hafidi M, Kouisni L. Improving the efficiency of phosphate rocks combined with phosphate solubilizing Actinomycetota to increase wheat growth under alkaline and acidic soils. Front Plant Sci 2023; 14:1154372. [PMID: 37235036 PMCID: PMC10206120 DOI: 10.3389/fpls.2023.1154372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/14/2023] [Indexed: 05/28/2023]
Abstract
Low availability of phosphorus (P) in both acidic and alkaline soils is a major problem for sustainable improvement in wheat crops yield. Optimization of crops productivity can be achieved by increasing the bioavailability of P by phosphate solubilizing Actinomycetota (PSA). However, their effectiveness may vary with changing agro-climatic conditions. In this regard, a greenhouse experiment was conducted to assess the interaction inoculation of five potential PSA (P16-P18-BC3-BC10 and BC11) and RPs (RP1- RP2-RP3 and RP4) on the growth and yield of wheat crop in unsterilized P- deficient alkaline and acidic soils. Their performance was compared with single super phosphate (TSP) and reactive RP (BG4). The in-vitro tests showed that all PSA colonize wheat root and form a strong biofilm except Streptomyces anulatus strain P16. Our findings revealed that all PSA significantly improve the shoot/root dry weights, spike biomass, chlorophyll contents as well as nutrients uptake in plants fertilized with RP3 and RP4. However, the combined application of Nocardiopsis alba BC11 along with RP4 in alkaline soil, was effective in optimizing wheat yield attributes and improve the yield biomass up to 19.7% as compared to the triple superphosphate (TSP). This study supports the view that the inoculation with Nocardiopsis alba BC11 has a broad RP solubilization and could alleviate the agricultural losses due to P limitation in acidic and alkaline soils.
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Affiliation(s)
- Kenza Boubekri
- AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
- Laboratory of Microbial Biotechnologies Agrosciences and Environment (BioMAgE), Labelled Unit CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University (UCA), Marrakech, Morocco
| | - Abdoulaye Soumare
- AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
- Laboratory of Agroforestry and Ecology, Assane Seck University (UASZ-UFR ST), Ziguinchor, Senegal
| | - Karim Lyamlouli
- AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
- Laboratory of Microbial Biotechnologies Agrosciences and Environment (BioMAgE), Labelled Unit CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University (UCA), Marrakech, Morocco
| | - Yedir Ouhdouch
- AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
- Laboratory of Microbial Biotechnologies Agrosciences and Environment (BioMAgE), Labelled Unit CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University (UCA), Marrakech, Morocco
| | - Mohamed Hafidi
- AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
- Laboratory of Microbial Biotechnologies Agrosciences and Environment (BioMAgE), Labelled Unit CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University (UCA), Marrakech, Morocco
| | - Lamfeddal Kouisni
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune, Morocco
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Ibrahimi M, Loqman S, Jemo M, Hafidi M, Lemee L, Ouhdouch Y. The potential of facultative predatory Actinomycetota spp. and prospects in agricultural sustainability. Front Microbiol 2023; 13:1081815. [PMID: 36762097 PMCID: PMC9905845 DOI: 10.3389/fmicb.2022.1081815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/28/2022] [Indexed: 01/26/2023] Open
Abstract
Actinomycetota in the phylum of bacteria has been explored extensively as a source of antibiotics and secondary metabolites. In addition to acting as plant growth-promoting agents, they also possess the potential to control various plant pathogens; however, there are limited studies that report the facultative predatory ability of Actinomycetota spp. Furthermore, the mechanisms that underline predation are poorly understood. We assessed the diversity of strategies employed by predatory bacteria to attack and subsequently induce the cell lysing of their prey. We revisited the diversity and abundance of secondary metabolite molecules linked to the different predation strategies by bacteria species. We analyzed the pros and cons of the distinctive predation mechanisms and explored their potential for the development of new biocontrol agents. The facultative predatory behaviors diverge from group attack "wolfpack," cell-to-cell proximity "epibiotic," periplasmic penetration, and endobiotic invasion to degrade host-cellular content. The epibiotic represents the dominant facultative mode of predation, irrespective of the habitat origins. The wolfpack is the second-used approach among the Actinomycetota harboring predatory traits. The secondary molecules as chemical weapons engaged in the respective attacks were reviewed. We finally explored the use of predatory Actinomycetota as a new cost-effective and sustainable biocontrol agent against plant pathogens.
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Affiliation(s)
- Manar Ibrahimi
- Laboratory of Molecular Chemistry, Materials and Catalysis, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni-Mellal, Morocco,Higher School of Technology Fkih Ben Salah, Sultan Moulay Slimane University, Fkih Ben Salah, Morocco
| | - Souad Loqman
- Laboratory of Microbiology and Virology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakesh, Morocco
| | - Martin Jemo
- AgroBiosciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
| | - Mohamed Hafidi
- AgroBiosciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco,Labelled Research Unit N°4 CNRST, Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Laurent Lemee
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP–CNRS UMR 7285), Université de Poitiers, Poitiers, France
| | - Yedir Ouhdouch
- AgroBiosciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco,Labelled Research Unit N°4 CNRST, Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco,*Correspondence: Yedir Ouhdouch,
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Boubekri K, Soumare A, Mardad I, Lyamlouli K, Ouhdouch Y, Hafidi M, Kouisni L. Multifunctional role of Actinobacteria in agricultural production sustainability: a review. Microbiol Res 2022; 261:127059. [DOI: 10.1016/j.micres.2022.127059] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/26/2021] [Accepted: 05/01/2022] [Indexed: 12/13/2022]
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Bouhia Y, Hafidi M, Ouhdouch Y, El Boukhari MEM, El Fels L, Zeroual Y, Lyamlouli K. Microbial Community Succession and Organic Pollutants Removal During Olive Mill Waste Sludge and Green Waste Co-composting. Front Microbiol 2022; 12:814553. [PMID: 35265049 PMCID: PMC8899611 DOI: 10.3389/fmicb.2021.814553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022] Open
Abstract
Olive mill wastewater sludge (OMWS) is the main by-product of the olive industry. OMWS is usually dumped in landfills without prior treatment and may cause several eco-environmental hazards due to its high toxicity, which is mainly attributed to polyphenols and lipids. OMWS is rich in valuable biocompounds, which makes it highly desirable for valorization by composting. However, there is a need to understand how microbial communities evolve during OMWS composting with respect to physicochemical changes and the dynamics of pollutant degradation. In this study, we addressed the relationship between microbial community, physicochemical variations and pollutants degradation during the co-composting of OMWS and green wastes using metagenomic- and culture-dependent approaches. The results showed that in raw OMWS, Pichia was the most represented genus with almost 53% of the total identified fungal population. Moreover, the bacteria that dominated were Zymobacter palmae (20%) and Pseudomonas sp. (19%). The addition of green waste to OMWS improved the actinobacterial diversity of the mixture and enhanced the degradation of lipids (81.3%) and polyphenols (84.54%). Correlation analysis revealed that Actinobacteria and fungi (Candida sp., Galactomyces sp., and Pichia manshurica) were the microorganisms that had the greatest influence on the composting process. Overall, these findings provide for the first time some novel insights into the microbial dynamics during OMWS composting and may contribute to the development of tailored inoculum for process optimization.
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Affiliation(s)
- Youness Bouhia
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Labelled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco.,Biodiversity and Plant Sciences Program, AgroBioSciences Department, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
| | - Mohamed Hafidi
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Labelled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco.,Biodiversity and Plant Sciences Program, AgroBioSciences Department, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
| | - Yedir Ouhdouch
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Labelled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco.,Biodiversity and Plant Sciences Program, AgroBioSciences Department, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
| | - Mohammed El Mehdi El Boukhari
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Labelled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco.,Biodiversity and Plant Sciences Program, AgroBioSciences Department, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
| | - Loubna El Fels
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Labelled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | | | - Karim Lyamlouli
- Biodiversity and Plant Sciences Program, AgroBioSciences Department, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
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Buernor AB, Kabiru MR, Bechtaoui N, Jibrin JM, Asante M, Bouraqqadi A, Dahhani S, Ouhdouch Y, Hafidi M, Jemo M. Grain Legume Yield Responses to Rhizobia Inoculants and Phosphorus Supplementation Under Ghana Soils: A Meta-Synthesis. Front Plant Sci 2022; 13:877433. [PMID: 35812914 PMCID: PMC9261782 DOI: 10.3389/fpls.2022.877433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/16/2022] [Indexed: 05/14/2023]
Abstract
A discrete number of studies have been conducted on the effects of rhizobia (Rhz) inoculants, phosphorus (P) management, and combined application of Rhz and P fertilizer on the enhancement of grain legume yield across soils of Ghana and elsewhere. However, the extent to which the various inoculated Rhz strains, P application, and combined application of Rhz + P studies contribute to improving yield, performed on a comprehensive analysis approach, and profit farmers are yet to be understood. This study reviewed different experimental studies conducted on soybean (Glycine max (L.) Merr.), cowpea (Vigna unguiculata [L.] Walp), and groundnut (Arachis hypogaea [L.]) to which Rhz inoculants, P supplements, or Rhz + P combination were applied to improve the yield in Ghana. Multiple-step search combinations of published articles and multivariate analysis computing approaches were used to assess the effects of Rhz inoculation, P application, or both application of Rhz and P on yield variation. The random forest (RF) regression model was further employed to quantify the relative importance of various predictor variables on yield. The meta-analysis results showed that cowpea exhibited the highest (61.7%) and groundnut (19.8%) the lowest average yield change. The RF regression model revealed that the combined application of Rhz and P fertilizer (10.5%) and Rhz inoculation alone (7.8%) were the highest explanatory variables to predict yield variation in soybean. The Rhz + P combination, Rhz inoculation, and genotype wang-Kae explained 11.6, 10.02, and 8.04% of yield variability for cowpea, respectively. The yield in the inoculated plants increased by 1.48-, 1.26-, and 1.16-fold when compared to that in the non-inoculated cowpea plants following inoculation with BR 3299, KNUST 1002, and KNUST 1006 strains, respectively. KNUST 1006 strain exhibited the highest yield increase ratio (1.3-fold) in groundnut plants. Inoculants formulation with a viable concentration of 109 cells g-1 and a minimum inoculum rate of 1.0 × 106 cells seed-1 achieved the highest average yield change for soybean but not for cowpea and groundnut. The meta-analysis calls for prospective studies to investigate the minimum rate of bacterial cells required for optimum inoculation responses in cowpea and groundnut.
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Affiliation(s)
| | - Muhammad Rabiu Kabiru
- AgroBioscience Program, University Mohammed VI Polytechnic (UM6P), Benguerir, Morocco
- Centre for Dryland Agriculture, Bayero University, Kano, Nigeria
| | - Noura Bechtaoui
- AgroBioscience Program, University Mohammed VI Polytechnic (UM6P), Benguerir, Morocco
| | | | - Michael Asante
- Council for Scientific and Industrial Research-Savanna Agricultural Research Institute (SARI), Tamale, Ghana
| | | | | | - Yedir Ouhdouch
- AgroBioscience Program, University Mohammed VI Polytechnic (UM6P), Benguerir, Morocco
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Mohamed Hafidi
- AgroBioscience Program, University Mohammed VI Polytechnic (UM6P), Benguerir, Morocco
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Martin Jemo
- AgroBioscience Program, University Mohammed VI Polytechnic (UM6P), Benguerir, Morocco
- *Correspondence: Martin Jemo
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Korichi W, Ibrahimi M, Loqman S, Ouhdouch Y, Younes K, Lemée L. Assessment of actinobacteria use in the elimination of multidrug-resistant bacteria of Ibn Tofail hospital wastewater (Marrakesh, Morocco): a chemometric data analysis approach. Environ Sci Pollut Res Int 2021; 28:26840-26848. [PMID: 33501577 DOI: 10.1007/s11356-021-12445-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
The efficiency of the treatment of hospital wastewater by actinobacteria was investigated using two chemometric data analysis methods. Six strains of multi-resistant bacteria isolated from Marrakesh hospital wastewater and four strains of antagonistic actinobacteria isolated from Moroccan marine environment were characterized by fatty acids released as methyl esters by thermochemolysis-GC/MS. The hierarchical cluster analysis (HCA) and the principal component analysis (PCA) were used to correlate fatty acids (FA) distributions within strains. HCA allowed to discriminate between bacteria and actinobacteria. A lower Euclidean distance is noted for bacteria. With PCA, linear and branched-chained FAs correlated with bacteria whereas mono unsaturated FAs correlated more specifically with Gram (-) bacteria. Terminally branched-chained FAs correlated most likely with actinobacteria. A co-culture of actinobacteria and bacteria monitored during 15 days demonstrated the efficiency of the biological treatment for 2 of the 4 studied actinobacteria. The effect is more important on Gram-negative bacteria. Antagonistic actinobacteria seem to be poorly efficient against Gram-positive bacteria.
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Affiliation(s)
- Wassila Korichi
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakesh, Morocco
- Laboratory of Microbiology and Virology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, PO Box 7010, Marrakesh, Morocco
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP - CNRS UMR 7285), Université de Poitiers, 4 rue Michel Brunet - TSA 51106, 86073, Poitiers Cedex 9, France
| | - Manar Ibrahimi
- Laboratoire de Chimie Organique et Analytique, FST, Université Sultan Moulay Slimane, Beni Mellal, Morocco
| | - Souad Loqman
- Laboratory of Microbiology and Virology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, PO Box 7010, Marrakesh, Morocco
| | - Yedir Ouhdouch
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE), Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakesh, Morocco
- Agro Bio Sciences Program, Mohammed VI Polytechnic University (UM6P), 43150, Benguerir, Morocco
| | - Khaled Younes
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP - CNRS UMR 7285), Université de Poitiers, 4 rue Michel Brunet - TSA 51106, 86073, Poitiers Cedex 9, France.
- College of Engineering and Technology, American University of the Middle East (AUM), Kuwait, Kuwait.
| | - Laurent Lemée
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP - CNRS UMR 7285), Université de Poitiers, 4 rue Michel Brunet - TSA 51106, 86073, Poitiers Cedex 9, France.
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11
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Soumare A, Diédhiou AG, Arora NK, Tawfeeq Al-Ani LK, Ngom M, Fall S, Hafidi M, Ouhdouch Y, Kouisni L, Sy MO. Potential Role and Utilization of Plant Growth Promoting Microbes in Plant Tissue Culture. Front Microbiol 2021; 12:649878. [PMID: 33854489 PMCID: PMC8039301 DOI: 10.3389/fmicb.2021.649878] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/01/2021] [Indexed: 11/04/2022] Open
Abstract
Plant growth promoting microbes (PGPMs) play major roles in diverse ecosystems, including atmospheric nitrogen fixation, water uptake, solubilization, and transport of minerals from the soil to the plant. Different PGPMs are proposed as biofertilizers, biostimulants, and/or biocontrol agents to improve plant growth and productivity and thereby to contribute to agricultural sustainability and food security. However, little information exists regarding the use of PGPMs in micropropagation such as the in vitro plant tissue culture. This review presents an overview of the importance of PGPMs and their potential application in plant micropropagation. Our analysis, based on published articles, reveals that the process of in vitro classical tissue culture techniques, under strictly aseptic conditions, deserves to be reviewed to allow vitroplants to benefit from the positive effect of PGPMs. Furthermore, exploiting the potential benefits of PGPMs will lead to lessen the cost production of vitroplants during micropropagation process and will make the technique of plant tissue culture more efficient. The last part of the review will indicate where research is needed in the future.
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Affiliation(s)
- Abdoulaye Soumare
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco.,Laboratoire Commun de Microbiologie (LCM) IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar, Senegal.,Centre d'Excellence Africain en Agriculture pour la Sécurité Alimentaire et Nutritionnelle (CEA-AGRISAN), UCAD, Dakar, Senegal
| | - Abdala G Diédhiou
- Laboratoire Commun de Microbiologie (LCM) IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar, Senegal.,Centre d'Excellence Africain en Agriculture pour la Sécurité Alimentaire et Nutritionnelle (CEA-AGRISAN), UCAD, Dakar, Senegal.,Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD), Dakar, Senegal
| | - Naveen Kumar Arora
- Department of Environmental Science, School of Earth and Environmental Sciences, BBA University, Lucknow, India
| | - Laith Khalil Tawfeeq Al-Ani
- Department of Plant Protection, College of Agriculture Engineering Sciences, University of Baghdad, Baghdad, Iraq.,School of Biology Science, Universiti Sains Malaysia, Penang, Malaysia
| | - Mariama Ngom
- Laboratoire Commun de Microbiologie (LCM) IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar, Senegal.,Laboratoire Campus de Biotechnologies Végétales (LCBV), Département de Biologie Végétale, Faculté des Sciences et Techniques, UCAD, Dakar, Senegal
| | - Saliou Fall
- Laboratoire Commun de Microbiologie (LCM) IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar, Senegal
| | - Mohamed Hafidi
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco.,Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Yedir Ouhdouch
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco.,Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
| | - Lamfeddal Kouisni
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
| | - Mame Ourèye Sy
- Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD), Dakar, Senegal.,Laboratoire Campus de Biotechnologies Végétales (LCBV), Département de Biologie Végétale, Faculté des Sciences et Techniques, UCAD, Dakar, Senegal
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12
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Soumare A, Diedhiou AG, Thuita M, Hafidi M, Ouhdouch Y, Gopalakrishnan S, Kouisni L. Exploiting Biological Nitrogen Fixation: A Route Towards a Sustainable Agriculture. Plants (Basel) 2020; 9:plants9081011. [PMID: 32796519 PMCID: PMC7464700 DOI: 10.3390/plants9081011] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 12/13/2022]
Abstract
For all living organisms, nitrogen is an essential element, while being the most limiting in ecosystems and for crop production. Despite the significant contribution of synthetic fertilizers, nitrogen requirements for food production increase from year to year, while the overuse of agrochemicals compromise soil health and agricultural sustainability. One alternative to overcome this problem is biological nitrogen fixation (BNF). Indeed, more than 60% of the fixed N on Earth results from BNF. Therefore, optimizing BNF in agriculture is more and more urgent to help meet the demand of the food production needs for the growing world population. This optimization will require a good knowledge of the diversity of nitrogen-fixing microorganisms, the mechanisms of fixation, and the selection and formulation of efficient N-fixing microorganisms as biofertilizers. Good understanding of BNF process may allow the transfer of this ability to other non-fixing microorganisms or to non-leguminous plants with high added value. This minireview covers a brief history on BNF, cycle and mechanisms of nitrogen fixation, biofertilizers market value, and use of biofertilizers in agriculture. The minireview focuses particularly on some of the most effective microbial products marketed to date, their efficiency, and success-limiting in agriculture. It also highlights opportunities and difficulties of transferring nitrogen fixation capacity in cereals.
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Affiliation(s)
- Abdoulaye Soumare
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir 43150, Morocco; (M.H.); (Y.O.); (L.K.)
- Laboratoire Commun de Microbiologie (LCM) IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar 1386, Senegal
- Correspondence: (A.S.); (A.G.D.)
| | - Abdala G. Diedhiou
- Laboratoire Commun de Microbiologie (LCM) IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar 1386, Senegal
- Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD) de Dakar, Dakar 1386, Senegal
- Centre d’Excellence Africain en Agriculture pour la Sécurité Alimentaire et Nutritionnelle (CEA-AGRISAN), UCAD, Dakar 18524, Senegal
- Correspondence: (A.S.); (A.G.D.)
| | - Moses Thuita
- International Institute of Tropical Agriculture, Nairobi PO BOX 30772-00100, Kenya;
| | - Mohamed Hafidi
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir 43150, Morocco; (M.H.); (Y.O.); (L.K.)
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Yedir Ouhdouch
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir 43150, Morocco; (M.H.); (Y.O.); (L.K.)
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | | | - Lamfeddal Kouisni
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir 43150, Morocco; (M.H.); (Y.O.); (L.K.)
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Soumare A, Boubekri K, Lyamlouli K, Hafidi M, Ouhdouch Y, Kouisni L. From Isolation of Phosphate Solubilizing Microbes to Their Formulation and Use as Biofertilizers: Status and Needs. Front Bioeng Biotechnol 2020; 7:425. [PMID: 31998701 PMCID: PMC6962098 DOI: 10.3389/fbioe.2019.00425] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 12/02/2019] [Indexed: 11/13/2022] Open
Abstract
The production of biofertilizers at industrial level is a bottleneck because bacterial strains are generally developed and managed by research laboratories and not by production units. A seamless transition from laboratory to field application is, therefore necessary. This review provides an overview of the constraints that limiting the application or the implementation of Actinobacteria based biofertilizers especially in agricultural field and suggests solutions to overcome some of these limits. General processes of making and controlling the quality of the inoculum are briefly described. In addition, the paper underlines the opportunity of biofertilizers alone or in combination with chemical fertilizers. This review also, highlights the latest studies (until June 2019) and focuses on P-solubilization microorganisms mainly Actinobacteria. The biotechnology of these bacteria is a glimmer of hope for rock phosphate (RP) bioformulation. Since direct application of RP fertilizer is not always agronomically effective due to its sparse solubility.
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Affiliation(s)
- Abdoulaye Soumare
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco.,Université Cheikh Anta Diop, Laboratoire Commun de Microbiologie IRD/ISRA/UCAD, Centre de Recherche de Bel Air, Dakar, Senegal
| | - Kenza Boubekri
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco.,Faculté des Sciences Semlalia, Université Cadi Ayyad, Laboratoire of Microbial Biotechnologies, Agrosciences and Environment, Marrakesh, Morocco
| | - Karim Lyamlouli
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
| | - Mohamed Hafidi
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco.,Faculté des Sciences Semlalia, Université Cadi Ayyad, Laboratoire of Microbial Biotechnologies, Agrosciences and Environment, Marrakesh, Morocco
| | - Yedir Ouhdouch
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco.,Faculté des Sciences Semlalia, Université Cadi Ayyad, Laboratoire of Microbial Biotechnologies, Agrosciences and Environment, Marrakesh, Morocco
| | - Lamfeddal Kouisni
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
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Hamim A, Boukeskasse A, Ouhdouch Y, Farrouki A, Barrijal S, Miché L, Mrabet R, Duponnois R, Hafidi M. Phosphate solubilizing and PGR activities of ericaceous shrubs microorganisms isolated from Mediterranean forest soil. Biocatalysis and Agricultural Biotechnology 2019. [DOI: 10.1016/j.bcab.2019.101128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Ouchari L, Boukeskasse A, Bouizgarne B, Ouhdouch Y. Antimicrobial potential of actinomycetes isolated from the unexplored hot Merzouga desert and their taxonomic diversity. Biol Open 2019; 8:bio.035410. [PMID: 30127092 PMCID: PMC6398458 DOI: 10.1242/bio.035410] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The absence of new antibiotics is guiding more and more researchers to specific ecosystems. One hundred and sixty-three Actinobacteria isolates were isolated from Merzouga sand and screened for their antibacterial and antifungal activities. To test the antimicrobial effect of isolates, four microorganisms known as human potential pathogens were used. The electrophoretic profiles of isolates obtained by repetitive element PCR fingerprinting (rep-PCR) were compared by clustering. Results showed that among the tested isolates, 59% were active against one or more in testing Gram-positive, Gram-negative and the yeast Candida albicans The importance of culture media for the activity expression was revealed. Comparative analysis of antimicrobial activity divided isolates into 15 groups. The comparison of the average diameters of inhibition zones using Minitab V.17 allowed subdivision of the 15 groups into 20 subgroups. Dendrograms derived from the BOXA1R-PCR fingerprints showed that 36 isolates were grouped in 16 clusters, containing from two to four isolates while 127 isolates were not grouped. The tested antimicrobial activities showed a high biological diversity with important inhibition of pathogens tested. The rep-PCR revealed a high taxonomic diversity of isolates. The combination of antimicrobial activity and rep-PCR results revealed the diverse pattern of Merzouga sand dune Actinobacteria.
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Affiliation(s)
- Lahcen Ouchari
- Moroccan-Coordinated Collections of Microorganisms (CCMM), National Center for Scientific and Technical Research (CNRST), Rabat 10170, Morocco .,Laboratory of Biology and Biotechnology of Microorganisms, Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech 10170, Morocco
| | - Amal Boukeskasse
- Laboratory of Biology and Biotechnology of Microorganisms, Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech 10170, Morocco
| | - Brahim Bouizgarne
- Laboratory, Plant Biotechnology, Plant Phytochemistry and Microbiology Soil Plants, Faculty of Sciences, Ibn Zohr University, Agadir 10170, Morocco
| | - Yedir Ouhdouch
- Laboratory of Biology and Biotechnology of Microorganisms, Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech 10170, Morocco
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Nafis A, Elhidar N, Oubaha B, Samri SE, Niedermeyer T, Ouhdouch Y, Hassani L, Barakate M. Screening for Non-polyenic Antifungal Produced by Actinobacteria from Moroccan Habitats: Assessment of Antimycin A19 Production by Streptomyces albidoflavus AS25. Int J Mol Cell Med 2018; 7:133-145. [PMID: 30276168 PMCID: PMC6148502 DOI: 10.22088/ijmcm.bums.7.2.133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/25/2018] [Indexed: 12/16/2022]
Abstract
Fungal diseases are currently a serious public health problem, due to the limited number of fact-based effective principles, and the emergence of resistant strains to the polyenic antifungals. The aim of this study was to screen, for non-polyenic antifungals production by Actinobacteria, and to validate the screening program by characterizingthe produced compounds.Actinobacteria isolates were tested against four clinic human-pathogenic fungi isolated from Hospital Mohammed V Rabat, Morocco. The production of non-polyenic antifungal metabolites by active isolates was investigated based on the yeast cell specificity as challenging targets, antibacterial activity, activity against resistant Candida tropicalis R2 and Pythium irregular (resistant to polyenes), inhibition of antifungal activity by the addition of exogenous ergosterol, and the UV-visible light spectrophotometric analysis of the active crude extracts.The antifungal compound produced was purified using various chromatographic techniques and the selected producing strain was identified using the polyphasic approach.Among 480 Actinobacteria isolates, 55 showed antifungal activity against all tested clinically derived fungi. After performing the screening program, 4 Actinobacteria that hadall the desired criteriawere selected. Using the polyphasic approach, the taxonomic position of the selected Streptomyces AS25, isolated from rhizospheric soil of Alyssum spinosum, showed that it belongs to Streptomyces genus with 100% partial 16S similarity with Streptomyces albidoflavus NBRC13010. On the basis of HPLC and mass spectrometry, the purified compound produced by Streptomyces AS25 was identified as a non-polyenic lactone, antimycin A19, which has been found for the first time to be produced by Streptomyces albidoflavus strain. Following the obtained results, it is important to note that our screening criteria for non-polyenic antifungals have been validated and the rhizospheric soil represents an interesting source to isolate Actinobacteria.
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Affiliation(s)
- Ahmed Nafis
- Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco.,Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Najoua Elhidar
- Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Brahim Oubaha
- Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Salah Eddine Samri
- Department of Biology, Nador Multidisciplinary Faculty, Mohamed First University, Nador, Morocco
| | - Timo Niedermeyer
- Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany.,Institute of Pharmacy, Pharmaceutical Biology, Martin-Luther-University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Yedir Ouhdouch
- Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Lahcen Hassani
- Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Mustapha Barakate
- Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
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Nafis A, Kasrati A, Azmani A, Ouhdouch Y, Hassani L. Endophytic actinobacteria of medicinal plant Aloe vera: Isolation, antimicrobial, antioxidant, cytotoxicity assays and taxonomic study. Asian Pac J Trop Biomed 2018. [DOI: 10.4103/2221-1691.244160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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18
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El Fels L, Hafidi M, Ouhdouch Y. Artemia salina as a new index for assessment of acute cytotoxicity during co-composting of sewage sludge and lignocellulose waste. Waste Manag 2016; 50:194-200. [PMID: 26868843 DOI: 10.1016/j.wasman.2016.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 02/01/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
Considering the necessity to constantly monitor the safety of use of sewage sludge, we have focused on evaluating the toxicity of raw sludge and sludge treated by co-composting with date palm waste using an in vitro assessment of cytotoxicity based on Artemia salina larvae as a simple new sensitive and reliable routine test. The efficiency of co-composting in decreasing sludge toxicity was evaluated in terms of cytotoxicity abatement reaching 100% by the second month of composting for mixture A (1/3 sludge+2/3 date palm waste) and the third month for mixture B (1/2 sludge+1/2 date palm waste). Cytotoxicity abatement was confirmed by the increase of germination index, which reached over 100% with positive correlation for lettuce (R(2)=0.81 and 0.86) and for turnip (R(2)=0.87 and 0.74) for mixtures A and B respectively. A strong correlation between the proposed cytotoxicity test and the evolution of regulatory physical-chemical approaches was found, (R(2)=0.88 and 0.89) for NH4(+)/NO3(-) and (R(2)=0.80 and 0.88) for C/N respectively for mixture A and B. These findings allow the inexpensive bioassay reported to be used as a highly sensitive test to determine the cytotoxicity and maturity of composts.
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Affiliation(s)
- Loubna El Fels
- Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32), Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco.
| | - Mohamed Hafidi
- Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32), Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
| | - Yedir Ouhdouch
- Laboratory of Biology and Biotechnology of Microorganisms, School of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
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Abstract
The objective of this study was to find a connection between the development of the compost actinobacteria and the potential involvement of antagonistic thermophilic actinomycetes in compost sanitization as high temperature additional role. An abundance of actinobacteria and coliforms during the activated sludge and date palm co-composting is determined. Hundred actinomycete isolates were isolated from the sample collected at different composting times. To evaluate the antagonistic effects of the different recovered actinomycete isolates, several wastewater-linked microorganisms known as human and plant potential pathogens were used. The results showed that 12 isolates have an in vitro inhibitory effect on at least 9 of the indicator microorganisms while only 4 active strains inhibit all these pathogens. The antimicrobial activities of sterilized composting time extracts are also investigated.
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Affiliation(s)
- Loubna El Fels
- a Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32) , Faculty of Science Semlalia, Cadi Ayyad University , 2390 Marrakech , Morocco
| | - Mohamed Hafidi
- a Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32) , Faculty of Science Semlalia, Cadi Ayyad University , 2390 Marrakech , Morocco
| | - Yedir Ouhdouch
- b Laboratoire de Biologie et Biotechnologie des Microorganismes, Faculté des Sciences Semlalia , Université Cadi Ayyad (UCAM) , Marrakech , Morocco
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El Fels L, El Ouaqoudi FZ, Barje F, Hafidi M, Ouhdouch Y. Two culture approaches used to determine the co-composting stages by assess of the total microflora changes during sewage sludge and date palm waste co-composting. J Environ Health Sci Eng 2014; 12:132. [PMID: 25419463 PMCID: PMC4240810 DOI: 10.1186/s40201-014-0132-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 10/20/2014] [Indexed: 06/04/2023]
Abstract
Indigenous microflora community changes during six months of co-composting of activated sewage sludge and date palm waste was investigated using two different culture approaches. In order to evaluate the co-composting process evolution for mixture A and B, growth standard media (GSM) and Compost Time Extract Agar (CTEA) are used. Enumeration for indigenous flora abundance on GSM medium shows that the colony-forming unit (CFU) total number was 100 fold higher than on CTEA. The thermophilic phase is determined at 30 day for both mixtures A and B. Nevertheless this stage is limited only at 22 and 30 days, respectively for mixture A and B on CTEA medium, which indicate a similar temperature profile at versus time of co-composting. The results suggest that the GSM medium approach can be used for monitoring the microbial cultivable presence. However, CTEA act as a natural selective medium to enumerate the indigenous functional microflora. This technique was successful in assessing the process evolution and determination of a real succession thermophilic and maturation co-composting stages.
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Affiliation(s)
- Loubna El Fels
- />Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32), Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
| | - Fatima-Zahra El Ouaqoudi
- />Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32), Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
| | - Farid Barje
- />Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32), Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
| | - Mohamed Hafidi
- />Laboratory of Ecology and Environment (L2E) (Unit Associated with the CNRST, URAC32), Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
| | - Yedir Ouhdouch
- />Laboratory of Biology and Biotechnology of Microorganisms, Faculty of Science Semlalia, Cadi Ayyad University, BP: 2390 Marrakech, Morocco
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Guernaoui S, Garcia D, Gazanion E, Ouhdouch Y, Boumezzough A, Pesson B, Fontenille D, Sereno D. Bacterial flora as indicated by PCR-temperature gradient gel electrophoresis (TGGE) of 16S rDNA gene fragments from isolated guts of phlebotomine sand flies (Diptera: Psychodidae). J Vector Ecol 2011; 36 Suppl 1:S144-S147. [PMID: 21366767 DOI: 10.1111/j.1948-7134.2011.00124.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this study, we tested the capacity of Temperature Gradient Gel Electrophoresis (TGGE)-based fingerprinting of 16S rDNA PCR fragments to assess bacterial composition in a single isolated sand fly gut. Bacterial content was studied in different life stages of a laboratory-reared colony of Phlebotomus duboscqi and in a wild-caught Phlebotomus papatasi population. Our study demonstrates that a major reorganization in the gut bacterial community occurs during metamorphosis of sand flies. Chloroflexi spp. was dominant in the guts of pre-imaginal stages, although Microbacterium spp. and another as yet unidentified bacteria were detected in the gut of the adult specimen. Interestingly, Microbacterium spp. was also found in all the adult guts of both species. We demonstrate that the analysis of bacterial diversity in an individualized sand fly gut is possible with fingerprinting of 16S rDNA. The use of such methodology, in conjunction with other culture-based methods, will be of great help in investigating the behavior of the Leishmania-bacterial community in an ecological context.
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Affiliation(s)
- S Guernaoui
- Institut de Recherche pour le Développement BP 64501, Montpellier Cedex 5, Montpellier, France
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Loqman S, Bouizgarne B, Barka EA, Clément C, von Jan M, Spröer C, Klenk HP, Ouhdouch Y. Streptomyces thinghirensis sp. nov., isolated from rhizosphere soil of Vitis vinifera. Int J Syst Evol Microbiol 2009; 59:3063-7. [PMID: 19643894 DOI: 10.1099/ijs.0.008946-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete, strain S10(T), was isolated from rhizosphere soil of wild Vitis vinifera in Thinghir, Ouarzazate Province, Southern Morocco. The taxonomic status of this strain was established using a polyphasic approach. Strain S10(T) had white-grey aerial mycelium with long, spiral spore chains bearing smooth surfaced spores and produced a yellow diffusible pigment. Chemotaxonomic analyses showed that the cell wall of strain S10(T) contained ll-diaminopimelic acid and glycine. Phylogenetic analysis based on the almost complete 16S rRNA gene sequence indicated that strain S10(T) belonged to the Group I streptomycetes, branching off next to Streptomyces marokkonensis LMG 23016(T) from the Streptomyces violaceoruber group. DNA-DNA relatedness and phenotypic data distinguished strain S10(T) from the phylogenetically closest related type strains. It is therefore proposed that strain S10(T) (=CCMM B35(T)=DSM 41919(T)) represents the type strain of a novel species of the genus Streptomyces, for which the name Streptomyces thinghirensis sp. nov. is proposed.
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Affiliation(s)
- S Loqman
- Laboratoire de Biologie et Biotechnologie des Microorganismes, Faculté des Sciences Semlalia, Université Cadi Ayyad, B.P S-2390, Marrakech, Morocco
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Bouizgarne B, Lanoot B, Loqman S, Sproer C, Klenk HP, Swings J, Ouhdouch Y. Streptomyces marokkonensis sp. nov., isolated from rhizosphere soil of Argania spinosa L. Int J Syst Evol Microbiol 2009; 59:2857-63. [DOI: 10.1099/ijs.0.011387-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Loqman S, Barka EA, Clément C, Ouhdouch Y. Antagonistic actinomycetes from Moroccan soil to control the grapevine gray mold. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9864-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hamdali H, Hafidi M, Virolle MJ, Ouhdouch Y. Rock phosphate-solubilizing Actinomycetes: screening for plant growth-promoting activities. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9817-0] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Imziln B, Lafdal O, Barakate M, Hassani L, Ouhdouch Y, Boussaid A, Jana M. Pril-ampicillin-dextrin-ethanol agar for the isolation and quantification ofAeromonasspp. from polluted environmental waters. J Appl Microbiol 2008. [DOI: 10.1111/j.1365-2672.1997.tb03586.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Anibou M, Chait A, Zyad A, Taourirt M, Ouhdouch Y, Benherref A. Actinomycetes from Moroccan habitats: isolation and screening for cytotoxic activities. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9705-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bouizgarne B, El-Maarouf-Bouteau H, Madiona K, Biligui B, Monestiez M, Pennarun AM, Amiar Z, Rona JP, Ouhdouch Y, El Hadrami I, Bouteau F. A putative role for fusaric acid in biocontrol of the parasitic angiosperm Orobanche ramosa. Mol Plant Microbe Interact 2006; 19:550-6. [PMID: 16673942 DOI: 10.1094/mpmi-19-0550] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Fusarium spp. are ubiquitous fungi found in soil worldwide as both pathogenic and nonpathogenic strains. The signals leading to disease or the absence of disease are poorly understood. We recently showed that fusaric acid (FA), a nonspecific toxin produced by most Fusarium spp., could elicit various plant defense responses at 100 nM without toxic effect. In this study, we checked for the effect of FA on root and root hairs, probable first site of contact between the fungi and the host. Large FA concentrations reduce root and root-hair growth and induce a rapid transient membrane hyperpolarization, followed by a large depolarization, due to the inhibition of H(+)-ATPase currents. Nanomolar concentrations of FA induced only an early transient membrane hyperpolarization of root hairs compatible with the induction of a signal transduction pathway. FA at 10(-7) M failed to induce salicylic acid- and jasmonic acid/ethylene-dependent defense-related genes but inhibited the germination of the angiosperm parasite Orobanche ramosa in contact of FA-pretreated Arabidopsis thaliana seedlings. These data suggest that FA at nontoxic concentrations could activate signal transduction components necessary for plant-defense responses that could contribute to biocontrol activity of Fusarium spp.
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Affiliation(s)
- Brahim Bouizgarne
- LEM (EA 3514), Université Paris 7, 2, place Jussieu, 750251 Paris 05, France
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Bouizgarne B, El Hadrami I, Ouhdouch Y. Novel Production of Isochainin by a Strain of Streptomyces sp. Isolated from Rhizosphere Soil of the Indigenous Moroccan Plant Argania Spinosa L. World J Microbiol Biotechnol 2006. [DOI: 10.1007/s11274-005-9051-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bouizgarne B, El-Maarouf-Bouteau H, Frankart C, Reboutier D, Madiona K, Pennarun AM, Monestiez M, Trouverie J, Amiar Z, Briand J, Brault M, Rona JP, Ouhdouch Y, El Hadrami I, Bouteau F. Early physiological responses of Arabidopsis thaliana cells to fusaric acid: toxic and signalling effects. New Phytol 2006; 169:209-18. [PMID: 16390432 DOI: 10.1111/j.1469-8137.2005.01561.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Fusaric acid (FA) is a toxin produced by Fusarium species. Most studies on FA have reported toxic effects (for example, alteration of cell growth, mitochondrial activity and membrane permeability) at concentrations greater than 10(-5) m. FA participates in fungal pathogenicity by decreasing plant cell viability. However, FA is also produced by nonpathogenic Fusarii, potential biocontrol agents of vascular wilt fusaria. The aim of this study was to determine whether FA, at nontoxic concentrations, could induce plant defence responses. Nontoxic concentrations of FA were determined from cell-growth and O2-uptake measurements on suspensions of Arabidopsis thaliana cells. Ion flux variations were analysed from electrophysiological and pH measurements. H2O2 and cytosolic calcium were quantified by luminescence techniques. FA at nontoxic concentrations (i.e. below 10(-6) m) was able to induce the synthesis of phytoalexin, a classic delayed plant response to pathogen. FA could also induce rapid responses putatively involved in signal transduction, such as the production of reactive oxygen species, and an increase in cytosolic calcium and ion channel current modulations. FA can thus act as an elicitor at nanomolar concentrations.
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Affiliation(s)
- B Bouizgarne
- LEM (EA 3514), Université Paris 7, 2, Place Jussieu, 75251 Paris cedex 05, France
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Imziln B, Lafdal OM, Barakate M, Hassani L, Ouhdouch Y, Boussaid A, Jana M. Pril-ampicillin-dextrin-ethanol agar for the isolation and quantification of Aeromonas spp. from polluted environmental waters. J Appl Microbiol 1997; 82:557-66. [PMID: 9172397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Several selective media were evaluated for their suitability for the isolation and quantification of mesophilic Aeromonas species from naturally polluted samples. Satisfactory recoveries were obtained with most of them but only when densities of background microflora were low. When analysed samples were from highly polluted waters, results were inconsistent because they did not give quantitative recovery of mesophilic aeromonads or they did not permit ready differentiation of Aeromonas species from the competitive bacteria. A new medium was developed on the basis of the combination of some positive aspects of several published media, pril-ampicillin-dextrin-ethanol (PADE) agar. The medium employs dextrin (Merck 3006) as a fermentable carbohydrate and pril, ampicillin and ethanol as inhibitory substances. Recovery on PADE agar from suspensions of 15 tested strains of Aeromonas prepared from pure cultures was excellent. The confirmation rate of typical colonies designated Aeromonas spp. isolated from polluted samples exceeded 90%. Recoveries of stressed aeromonad strains on both PADE agar and a non-selective medium (TSA) did not show any significant difference (P > 0.05). PADE agar was more reliable for quantitative recovery of mesophilic aeromonads than the other selective media because of its characteristics: (i) inhibition of the swarming of Proteus, (ii) good reduction of the background, (iii) inhibition of the over growth of Klebsiella spp., (iv) absence of NaCl makes it unfavourable for the growth of halophilic vibrios, (v) combination of two pH indicators permitted a very easy differentiation between Aeromonas colonies and the competitive microflora. The medium can also be used for isolation of aeromonads from various sources by membrane filtration.
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Affiliation(s)
- B Imziln
- Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
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Imziln B, Lafdal O, Barakate M, Hassani L, Ouhdouch Y, Boussaid A, Jana M. Pril-ampicillin-dextrin-ethanol agar for the isolation and quantification of Aeromonas spp. from polluted environmental waters. J Appl Microbiol 1997. [DOI: 10.1111/j.1365-2672.1997.tb02864.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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