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Bennis M, Kaddouri K, Badaoui B, Bouhnik O, Chaddad Z, Perez-Tapia V, Lamin H, Alami S, Lamrabet M, Abdelmoumen H, Bedmar EJ, Missbah El Idrissi M. Plant growth promoting activities of Pseudomonas sp. and Enterobacter sp. isolated from the rhizosphere of Vachellia gummifera in Morocco. FEMS Microbiol Ecol 2023; 99:fiad114. [PMID: 37742210 DOI: 10.1093/femsec/fiad114] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/22/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023] Open
Abstract
The Moroccan endemic Vachellia gummifera grows wild under extreme desert conditions. This plant could be used as an alternative fodder for goats, and camels, in order to protect the Argan forests against overgrazing in Central and Southwestern Moroccan semiarid areas. With the aim to improve the V. gummifera population's density in semiarid areas, we proposed its inoculation with performing plant growth-promoting bacteria. Hence, 500 bacteria were isolated from the plant rhizosphere. From these, 291 isolates were retained for plant growth-promoting (PGP) activities assessment. A total of 44 isolates showed the best phosphates solubilization potential, as well as siderophore and auxin production. The combination of REP-PCR (repetitive extragenic palindromic-polymerase chain reaction) fingerprinting, PGP activities, and phenotypic properties, allowed the selection of three strains for the inoculation experiments. The three selected strains' 16S rRNA sequencing showed that they are members of the Enterobacter and Pseudomonas genera. The inoculation with three strains had diverse effects on V. gummifera growth parameters. All single and combined inoculations improved the plant shoot weight by more than 200%, and the root length by up to 139%, while some combinations further improved protein and chlorophyll content, thereby improving the plant's forage value. The three selected strains constitute an effective inoculum for use in the arid and semiarid zones of southern Morocco.
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Affiliation(s)
- Meryeme Bennis
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Koutar Kaddouri
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Bouabid Badaoui
- Laboratoire de Zoologie et de Biologie Générale, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Omar Bouhnik
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Zohra Chaddad
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Vicente Perez-Tapia
- Departamento de Microbiología del Suelo y Sistemas Simbíoticos Estacíon Experimental del Zaidín, CSIC, Apartado Postal 419, 18008 Granada, Spain
| | - Hanane Lamin
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Soufiane Alami
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Mouad Lamrabet
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Hanaa Abdelmoumen
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
| | - Eulogio J Bedmar
- Departamento de Microbiología del Suelo y Sistemas Simbíoticos Estacíon Experimental del Zaidín, CSIC, Apartado Postal 419, 18008 Granada, Spain
| | - Mustapha Missbah El Idrissi
- Equipe de Microbiologie et Biologie Moléculaire, Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, B.P. 1014 RP, Rabat 10080, Morocco
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Bouhnik O, Alami S, Lamin H, Lamrabet M, Bennis M, Ouajdi M, Bellaka M, Antri SE, Abbas Y, Abdelmoumen H, Bedmar EJ, Idrissi MME. The Fodder Legume Chamaecytisus albidus Establishes Functional Symbiosis with Different Bradyrhizobial Symbiovars in Morocco. Microb Ecol 2022; 84:794-807. [PMID: 34625829 DOI: 10.1007/s00248-021-01888-4] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
In this work, we analyzed the symbiotic performance and diversity of rhizobial strains isolated from the endemic shrubby legume Chamaecytisus albidus grown in soils of three different agroforestry ecosystems representing arid and semi-arid forest areas in Morocco. The analysis of the rrs gene sequences from twenty-four representative strains selected after REP-PCR fingerprinting showed that all the strains belong to the genus Bradyrhizobium. Following multi-locus sequence analysis (MLSA) using the rrs, gyrB, recA, glnII, and rpoB housekeeping genes, five representative strains, CA20, CA61, CJ2, CB10, and CB61 were selected for further molecular studies. Phylogenetic analysis of the concatenated glnII, gyrB, recA, and rpoB genes showed that the strain CJ2 isolated from Sahel Doukkala soil is close to Bradyrhizobium canariense BTA-1 T (96.95%); that strains CA20 and CA61 isolated from the Amhach site are more related to Bradyrhizobium valentinum LmjM3T, with 96.40 and 94.57% similarity values; and that the strains CB10 and CB60 isolated from soil in the Bounaga site are more related to Bradyrhizobium murdochi CNPSo 4020 T and Bradyrhizobium. retamae Ro19T, with which they showed 95.45 and 97.34% similarity values, respectively. The phylogenetic analysis of the symbiotic genes showed that the strains belong to symbiovars lupini, genistearum, and retamae. All the five strains are able to nodulate Lupinus luteus, Retama monosperma, and Cytisus monspessilanus, but they do not nodulate Glycine max and Phaseolus vulgaris. The inoculation tests showed that the strains isolated from the 3 regions improve significantly the plant yield as compared to uninoculated plants. However, the strains of Bradyrhizobium sp. sv. retamae isolated from the site of Amhach were the most performing. The phenotypic analysis showed that the strains are able to use a wide range of carbohydrates and amino acids as sole carbon and nitrogen source. The strains isolated from the arid areas of Bounaga and Amhach were more tolerant to salinity and drought stress than strains isolated in the semi-arid area of Sahel Doukkala.
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Affiliation(s)
- Omar Bouhnik
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco.
| | - Soufiane Alami
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco
| | - Hanane Lamin
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco
| | - Mouad Lamrabet
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco
| | - Meryeme Bennis
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco
| | - Mohammed Ouajdi
- Centre de Recherche Forestière, Département Des Eaux Et Forêts, Avenue Omar Ibn El KhattabAgdal, BP 763, 10050, Rabat, Morocco
| | - Mhammed Bellaka
- Centre de Recherche Forestière, Département Des Eaux Et Forêts, Avenue Omar Ibn El KhattabAgdal, BP 763, 10050, Rabat, Morocco
| | - Salwa El Antri
- Centre de Recherche Forestière, Département Des Eaux Et Forêts, Avenue Omar Ibn El KhattabAgdal, BP 763, 10050, Rabat, Morocco
| | - Younes Abbas
- Faculté Polydiciplinaire, Université Sultan Moulay Slimane, Beni Mellal, Morocco
| | - Hanaa Abdelmoumen
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco
| | - Eulogio J Bedmar
- Departamento de Microbiología del Suelo y Sistemas Simbióticos Estación Experimental del Zaidín, CSIC Apartado Postal 419, Granada, 18008, Spain
| | - Mustapha Missbah El Idrissi
- Centre de Biotechnologies Végétale Et Microbienne, Biodiversité Et Environnement, Faculté Des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Agdal, BP 1014 RP, Rabat, Morocco
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Bennis M, Perez-Tapia V, Alami S, Bouhnik O, Lamin H, Abdelmoumen H, Bedmar EJ, Missbah El Idrissi M. Characterization of plant growth-promoting bacteria isolated from the rhizosphere of Robinia pseudoacacia growing in metal-contaminated mine tailings in eastern Morocco. J Environ Manage 2022; 304:114321. [PMID: 35021593 DOI: 10.1016/j.jenvman.2021.114321] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Mining activity in the Touissit district of Eastern Morocco has led to an unprecedented accumulation of heavy metals, mainly lead and zinc, in the tailing ponds of the open-air mines. This poses a real danger to both the environment and local population. OBJECTIVES The goal of this work was to characterize the Plant Growth Promoting Rhizobacteria (PGPR) isolated from the rhizosphere soil of R. pseudoacacia plants grown wild in the abandoned Pb- and Zn-contaminated tailing ponds in the mining district of Touissit, in Eastern Morocco. MAIN RESULTS One hundred bacterial strains were isolated from the rhizosphere of black locust (Robinia pseudoacacia L.) plants growing naturally in the Touissit mine tailings. Quantitative determination of indole-acetic and siderophores production, inorganic phosphate solubilization, hydrolysis of 1-aminocyclopropane-1-carboxylic acid (ACC deaminase activity), and ability to act as a biocontrol agent allowed selection of the 3 strains, 7MBT, 17MBT and 84MBT with improved PGP properties. The three strains grew well in the presence of high concentration of Pb-acetate and ZnCl2; and the addition of Pb or Zn to the culture medium differently affected the PGP properties analyzed. NOVELTY STATEMENT Inoculation of black locust grown with the 3 selected strains, in the presence 1000 μg ml-1 of Pb-acetate, produced varying effects on the plant dry weight. The strain 84MBT alone or in combination with strains 7MBT and 17MBT increased significantly the dry weight of the plants by 91, 62, and 85% respectively. The 16S rRNA gene sequence analysis of each strain showed that the strains 7MBT 17MBT and 84MBT had 99.34, 100, and had 99.72% similarity with Priestia endophytica (formerly B. endophyticus), B. pumilus NBRC 12092T, and B. halotolerans NBRC 15718T, respectively.
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Affiliation(s)
- Meryeme Bennis
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Vicente Perez-Tapia
- Departamento de Microbiología del Suelo y Sistemas Simbióticos Estación Experimental del Zaidín, CSIC Apartado Postal 419, 18008, Granada, Spain
| | - Soufiane Alami
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Omar Bouhnik
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Hanane Lamin
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Hanaa Abdelmoumen
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Eulogio J Bedmar
- Departamento de Microbiología del Suelo y Sistemas Simbióticos Estación Experimental del Zaidín, CSIC Apartado Postal 419, 18008, Granada, Spain
| | - Mustapha Missbah El Idrissi
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco.
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Lamin H, Alami S, Lamrabet M, Bouhnik O, Bennis M, Abdelmoumen H, Bedmar EJ, Missbah-El Idrissi M. Bradyrhizobium sp. sv. retamae nodulates Retama monosperma grown in a lead and zinc mine tailings in Eastern Morocco. Braz J Microbiol 2021; 52:639-649. [PMID: 33447935 PMCID: PMC8105474 DOI: 10.1007/s42770-021-00420-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022] Open
Abstract
The aim of this work was to characterize and identify some bacteria isolated from the root nodules of Retama monosperma grown in Sidi Boubker lead and zinc mine tailings. Very few root nodules were obtained on the root nodules of R. monosperma grown in these soils. The three bacteria isolated from the root nodules were tolerant in vitro to different concentrations of heavy metals, including lead and zinc. The rep-PCR experiments showed that the three isolates have different molecular fingerprints and were considered as three different strains. The analysis of their 16S rRNA gene sequences proved their affiliation to the genus Bradyrhizobium. The analysis and phylogeny of the housekeeping genes atpD, glnII, gyrB, recA, and rpoB confirmed that the closest species was B. valentinum with similarity percentages of 95.61 to 95.82%. The three isolates recovered from the root nodules were slow-growing rhizobia capable to renodulate their original host plant in the presence of Pb-acetate. They were able to nodulate R. sphaerocarpa and Lupinus luteus also but not Glycine max or Phaseolus vulgaris. The phylogeny of the nodA and nodC nodulation genes as well as the nifH gene of the three strains showed that they belong to the symbiovar retamae of the genus Bradyrhizobium. The three strains isolated could be considered for use as inoculum for Retama plants before use in phytoremediation experiments.
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Affiliation(s)
- Hanane Lamin
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Soufiane Alami
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Mouad Lamrabet
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Omar Bouhnik
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Meryeme Bennis
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Hanaa Abdelmoumen
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Eulogio J Bedmar
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), E-419, 18080, Granada, Spain
| | - Mustapha Missbah-El Idrissi
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco.
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Alami S, Lamin H, Bennis M, Bouhnik O, Lamrabet M, El Hachimi ML, Abdelmoumen H, Bedmar EJ, Missbah El Idrissi M. Characterization of Retama sphaerocarpa microsymbionts in Zaida lead mine tailings in the Moroccan middle Atlas. Syst Appl Microbiol 2021; 44:126207. [PMID: 34015589 DOI: 10.1016/j.syapm.2021.126207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 11/25/2022]
Abstract
In the Moroccan Middle Atlas, the tailings rich in lead and other metal residues, in the abandoned Zaida mining district, represent a real threat to environment and the neighboring villages' inhabitants' health. In this semi-arid to arid area, phytostabilisation would be the best choice to limit the transfer of heavy metals to populations and groundwater. The aim of this work was to characterize the bacteria that nodulate Retama sphaerocarpa, spontaneous nitrogen fixing shrubby legume, native to the Zaida mining area, with great potential to develop for phytostabilisation. Forty-three bacteria isolated from root nodules of the plant were characterized. Based on REP-PCR and ARDRA, four strains were selected for further molecular analyzes. The 16S rRNA gene sequences analysis revealed that the isolated strains are members of the genus Bradyrhizobium, and the phylogenetic analysis of the housekeeping genes glnII, atpD, gyrB, rpoB, recA and dnaK individual sequences and their concatenation showed that the strains are close to B. algeriense RST89T and B. valentinum LmjM3T with similarity percentages of 89.07% to 95.66% which suggest that the newly isolated strains from this mining site may belong to a potential novel species. The phylogeny of the nodA and nodC genes showed that the strains belong to the symbiovar retamae of the genus Bradyrhizobium. These strains nodulate also R. monosperma, R. dasycarpa and Lupinus luteus.
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Affiliation(s)
- Soufiane Alami
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Hanane Lamin
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Meryeme Bennis
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Omar Bouhnik
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Mouad Lamrabet
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | | | - Hanaa Abdelmoumen
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco
| | - Eulogio J Bedmar
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), E-419, 18080 Granada, Spain
| | - Mustapha Missbah El Idrissi
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, 4 Avenue Ibn Battouta, Agdal, Rabat, Morocco.
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Bouhnik O, Lamin H, Alami S, Bennis M, Ouajdi M, Bellaka M, El Antry S, Abbas Y, Abdelmoumen H, Bedmar EJ, El Idrissi MM. The endemic Chamaecytisus albidus is nodulated by symbiovar genistearum of Bradyrhizobium in the Moroccan Maamora Forest. Syst Appl Microbiol 2021; 44:126197. [PMID: 33838436 DOI: 10.1016/j.syapm.2021.126197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 10/21/2022]
Abstract
Out of 54 isolates from root nodules of the Moroccan-endemic Chamaecytisus albidus plants growing in soils from the Maamora cork oak forest, 44 isolates formed nodules when used to infect their original host plant. A phenotypic analysis showed the metabolic diversity of the strains that used different carbohydrates and amino acids as sole carbon and nitrogen sources. The isolates grew on media with pH values ranging from 6 to 8. However, they did not tolerate high temperatures or drought and they did not grow on media with salt concentrations higher than 85 mM. REP-PCR fingerprinting grouped the strains into 12 clusters, of which representative strains were selected for ARDRA and rrs analyses. The rrs gene sequence analysis indicated that all 12 strains were members of the genus Bradyrhizobium and their phylogeny showed that they were grouped into two different clusters. Two strains from each group were selected for multilocus sequence analysis (MLSA) using atpD, recA, gyrB and glnII housekeeping genes. The inferred phylogenetic trees confirmed that the strains clustered into two divergent clusters. Strains CM55 and CM57 were affiliated to the B. canariense/B. lupini group, whereas strains CM61 and CM64 were regrouped within the B. cytisi/B. rifense lineage. The analysis of the nodC symbiotic gene affiliated the strains to the symbiovar genistearum. The strains were also able to nodulate Retama monosperma, Lupinus luteus and Cytisus monspessulanus, but not Phaseolus vulgaris or Glycine max. Inoculation tests with C. albidus showed that some strains could be exploited as efficient inocula that could be used to improve plant growth in the Maamora forest.
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Affiliation(s)
- Omar Bouhnik
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Hanane Lamin
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Soufiane Alami
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Meryeme Bennis
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Mohammed Ouajdi
- Centre de Recherche Forestière, Département des Eaux et Forêts, Avenue Omar Ibn El Khattab, BP 763, Rabat-Agdal 10050, Morocco
| | - M'hamed Bellaka
- Centre de Recherche Forestière, Département des Eaux et Forêts, Avenue Omar Ibn El Khattab, BP 763, Rabat-Agdal 10050, Morocco
| | - Salwa El Antry
- Centre de Recherche Forestière, Département des Eaux et Forêts, Avenue Omar Ibn El Khattab, BP 763, Rabat-Agdal 10050, Morocco
| | - Younes Abbas
- Faculté Polydiciplinaire, Université Sultan Moulay Slimane, Beni Mellal, Morocco
| | - Hanaa Abdelmoumen
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco
| | - Eulogio J Bedmar
- Departamento de Microbiología del Suelo y Sistemas Simbióticos, CSIC Estación Experimental del Zaidín, Apartado Postal 419, 18080 Granada, Spain
| | - Mustapha Missbah El Idrissi
- Centre de Biotechnologies Végétale et Microbienne, Biodiversité et Environnement, Faculté des Sciences, Université Mohammed V de Rabat, 4, Avenue Ibn Battouta, Rabat, Morocco.
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Lamin H, Alami S, Bouhnik O, Bennis M, Benkritly S, Abdelmoumen H, Bedmar EJ, Missbah-El Idrissi M. Identification of the endosymbionts from Sulla spinosissima growing in a lead mine tailings in Eastern Morocco as Mesorhizobium camelthorni sv. aridi. J Appl Microbiol 2020; 130:948-959. [PMID: 32866324 DOI: 10.1111/jam.14834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/18/2020] [Accepted: 08/23/2020] [Indexed: 02/06/2023]
Abstract
AIMS To identify the bacteria nodulating Sulla spinosissima growing profusely in a lead and zinc mine tailings in Eastern Morocco. METHODS AND RESULTS In all, 32 rhizobial cultures, isolated from root nodules of S. spinosissima growing in soils of the mining site, were tolerant to different heavy metals. The ERIC-polymerase chain reaction (PCR) fingerprinting analysis clustered the isolates into seven different groups, and the analysis of the 16S rRNA sequences of four selected representative strains, showed they were related to different species of the genus Mesorhizobium. The atpD, glnII and recA housekeeping genes analysis confirmed the affiliation of the four representative strains to Mesorhizobium camelthorni CCNWXJ40-4T , with similarity percentages varying from 96·30 to 98·30%. The sequences of the nifH gene had 97·33-97·78% similarities with that of M. camelthorni CCNWXJ40-4T ; however, the nodC phylogeny of the four strains diverged from the type and other reference strains of M. camelthorni and formed a separated cluster. The four strains nodulate also Astragalus gombiformis and A. armatus but did not nodulate A. boeticus, Vachellia gummifera, Prosopis chilensis, Cicer arietinum, Lens culinaris, Medicago truncatula, Lupinus luteus or Phaseolus vulgaris. CONCLUSIONS Based on similarities of the nodC symbiotic gene and differences in the host range, the strains isolated from S. spinosissima growing in soils of the Sidi Boubker mining site may form a different symbiovar within Mesorhizobium for which the name aridi is proposed. SIGNIFICANCE AND IMPACT OF THE STUDY In this work, we show that strains of M. camelthorni species nodulating S. spinosissima in the arid area of Eastern Morocco constitute a distinct phylogenetic clade of nodulation genes; we named symbiovar aridi, which encompasses also mesorhizobia from other Mediterranean desert legumes.
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Affiliation(s)
- H Lamin
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - S Alami
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - O Bouhnik
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - M Bennis
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - S Benkritly
- Laboratoire de Biotechnologie des Rhizobiums et Amélioration des Plantes (LBRAP), Département de Biotechnologie, Faculté des Sciences, Université d'Oran1 Ahmed Ben Bella, Es Senia, Algeria
| | - H Abdelmoumen
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - E J Bedmar
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - M Missbah-El Idrissi
- Centre de Biotechnologies végétales et microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
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Missbah El Idrissi M, Lamin H, Bouhnik O, Lamrabet M, Alami S, Jabrone Y, Bennis M, Bedmar EJ, Abdelmoumen H. Characterization of Pisum sativum and Vicia faba microsymbionts in Morocco and definition of symbiovar viciae in Rhizobium acidisoli. Syst Appl Microbiol 2020; 43:126084. [PMID: 32423773 DOI: 10.1016/j.syapm.2020.126084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 12/15/2022]
Abstract
In this work, we analyzed the diversity of seventy-six bacteria isolated from Pea and faba bean nodules in two regions of Morocco. The molecular diversity was realized using the analysis of the sequences of 16S rRNA and six housekeeping genes (recA, glnII, atpD, dnaK, rpoB and gyrB) and two symbiotic genes (nodA and nodC). The phylogeny of the 16S rRNA gene sequences revealed that all strains belong to the genus Rhizobium, being related to the type strains of R. leguminosarum, R. laguerreae, R. indigoferae, R. anhuiense and R. acidisoli. The housekeeping genes phylogenies showed that some strains formed a subclade distinct from the rhizobial species that usually nodulate Vicia faba and Pisum sativum which are closely related to R. acidisoli FH23 with sequence similarity of 98.3%. Analysis of the PGPR activities of the different isolates showed that the strains related to R. laguerreae were able to solubilize phosphates and to produce siderophores and auxin phytohormone. However, R. acidisoli strain F40D2 was unable to solubilize phosphates although they produce siderophores and IAA. The phylogenetic analysis of the nodA and nodC sequences showed that all isolated strains were closely related with the strains of symbiovar viciae. The nodulation tests confirmed the ability to nodulate V. faba and P. sativum but not Cicer arietinum or Phaseolus vulgaris. Hence, in Morocco P. sativum is nodulated by R. laguerreae; whereas V. faba is nodulated by R. laguerreae and the symbiovar viciae of R. acidisoli which has been not previously described in this species.
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Affiliation(s)
- Mustapha Missbah El Idrissi
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco.
| | - Hanane Lamin
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Omar Bouhnik
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Mouad Lamrabet
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Soufiane Alami
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Youssef Jabrone
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco; Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), E-419, 18080 Granada, Spain
| | - Meryeme Bennis
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Eulogio J Bedmar
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), E-419, 18080 Granada, Spain
| | - Hanaa Abdelmoumen
- Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Faculty of Sciences, Mohammed V University in Rabat, Morocco
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Daste C, Abdoul H, Foissac F, Papelard A, Alami S, Kwakkenbos L, Carrier ME, Lefèvre-Colau MM, Thombs BD, Poiraudeau S, Rannou F, Mouthon L, Nguyen C. Development of a new patient-reported outcome measure to assess activities and participation in people with systemic sclerosis: the Cochin 17-item Scleroderma Functional scale. Br J Dermatol 2020; 183:710-718. [PMID: 32017013 DOI: 10.1111/bjd.18922] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Patient-reported outcome measures (PROMs) aimed at assessing people with systemic sclerosis (SSc) have rarely involved the target population in the item- and domain-generation stage of the instrument construction. OBJECTIVES To develop a new PROM assessing activities and participation in people with SSc. METHODS A provisional International Classification of Functioning, Disability and Health (ICF)-based 65-item questionnaire previously developed from interviews of people with SSc was sent by email to all patients followed in the internal medicine department of Cochin hospital (n = 184) and enrolled in the Scleroderma Patient-centered Intervention Network Cohort. Items were reduced according to their metric properties. Dimensional structure of the questionnaire was assessed by principal component analysis, convergent and divergent validities by Spearman's rank correlation coefficient, internal consistency by Cronbach's α, and reliability by a test-retest method using the intraclass correlation coefficient (ICC) and Bland-Altman analysis. RESULTS Overall, 113 of 184 patients (61·4%) completed the provisional questionnaire. The item-reduction process resulted in a 17-item questionnaire, the Cochin 17-item Scleroderma Functional scale (CSF-17). Principal component analysis extracted two dimensions: 10 items related to mobility (CSF-17 section A) and seven items related to general tasks (CSF-17 section B). We observed convergent validity of the CSF-17 total score with global activity limitation, pain, depression and aesthetic burden, and divergent validity with anxiety. Cronbach's α was 0·94 for section A and 0·95 for section B. ICC (n = 25 patients) was 0·92 for the CSF-17 total score. Bland-Altman analysis did not reveal a systematic trend for the test-retest. CONCLUSIONS The CSF-17 is a new PROM assessing activities and participation specifically in people with SSc. Its content and construct validities are very high. What is already known about this topic? In the earliest stages of construction patient-reported outcomes (PROMs) for people with systemic sclerosis (SSc) rarely involve the target population. Instruments able to capture the specific needs of people with SSc in terms of activities and participation are lacking. What does this study add? The Cochin 17-item Scleroderma Functional Scale (CSF-17) is a new PROM assessing global activities and participation specifically in people with SSc. Patients' perspectives were prioritized at all stages of construction. What are the clinical implications of this work? The CSF-17 could be used in clinical practice and research to assess the efficacy of complex multidisciplinary interventions targeting activity limitations and participation restriction in people with SSc. Linked Comment: Clark and Denton. Br J Dermatol 2020; 183:610.
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Affiliation(s)
- C Daste
- Université de Paris, Faculté de Santé, UFR Médecine de Paris Centre, Sorbonne Paris Cité, 75006, Paris, France.,AP-HP Centre-Université de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpital Cochin, 75014, Paris, France.,Inserm UMR 1153, Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité, 75004, Paris, France
| | - H Abdoul
- Unité de Recherche Clinique Centre d'Investigation Clinique Paris Descartes Necker/Cochin, Hôpital Tarnier, 75014, Paris, France
| | - F Foissac
- Unité de Recherche Clinique Centre d'Investigation Clinique Paris Descartes Necker/Cochin, Hôpital Tarnier, 75014, Paris, France.,EA 7323, Évaluation des Thérapeutiques et Pharmacologie Périnatale et Pédiatrique, 75014, Paris, France
| | - A Papelard
- AP-HP Centre-Université de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpital Cochin, 75014, Paris, France
| | - S Alami
- Cabinet d'Études Sociologiques Interlis, 75006, Paris, France
| | - L Kwakkenbos
- Behavioural Science Institute, Clinical Psychology, Radboud University, Nijmegen, the Netherlands
| | - M-E Carrier
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - M-M Lefèvre-Colau
- Université de Paris, Faculté de Santé, UFR Médecine de Paris Centre, Sorbonne Paris Cité, 75006, Paris, France.,AP-HP Centre-Université de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpital Cochin, 75014, Paris, France.,Inserm UMR 1153, Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité, 75004, Paris, France.,Institut Fédératif de Recherche sur le Handicap, 75013, Paris, France
| | - B D Thombs
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada.,Departments of Psychiatry; Epidemiology, Biostatistics and Occupational Health; Medicine; Psychology; and Educational and Counselling Psychology; and the Biomedical Ethics Unit, McGill University, Montreal, QC, Canada
| | - S Poiraudeau
- Université de Paris, Faculté de Santé, UFR Médecine de Paris Centre, Sorbonne Paris Cité, 75006, Paris, France.,AP-HP Centre-Université de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpital Cochin, 75014, Paris, France.,Inserm UMR 1153, Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité, 75004, Paris, France.,Institut Fédératif de Recherche sur le Handicap, 75013, Paris, France
| | - F Rannou
- Université de Paris, Faculté de Santé, UFR Médecine de Paris Centre, Sorbonne Paris Cité, 75006, Paris, France.,AP-HP Centre-Université de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpital Cochin, 75014, Paris, France.,UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs (T3S), Centre Universitaire des Saints-Pères, 75006, Paris, France
| | - L Mouthon
- Université de Paris, Faculté de Santé, UFR Médecine de Paris Centre, Sorbonne Paris Cité, 75006, Paris, France.,AP-HP Centre-Université de Paris, Service de Médecine Interne, Centre de Référence Maladies Systémiques Auto-Immunes Rares d'Île-de-France, Hôpital Cochin, 75014, Paris, France
| | - C Nguyen
- Université de Paris, Faculté de Santé, UFR Médecine de Paris Centre, Sorbonne Paris Cité, 75006, Paris, France.,AP-HP Centre-Université de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis, Hôpital Cochin, 75014, Paris, France.,UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs (T3S), Centre Universitaire des Saints-Pères, 75006, Paris, France
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Bouhnik O, ElFaik S, Alami S, Talbi C, Lamin H, Abdelmoumen H, Tortosa Muñoz G, J. Bedmar E, Missbah El Idrissi M. Ensifer fredii symbiovar vachelliae nodulates endemic Vachellia gummifera in semiarid Moroccan areas. Syst Appl Microbiol 2019; 42:125999. [DOI: 10.1016/j.syapm.2019.06.004] [Citation(s) in RCA: 6] [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] [Received: 05/15/2019] [Revised: 06/27/2019] [Accepted: 06/27/2019] [Indexed: 10/26/2022]
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Lamin H, Alami S, Bouhnik O, ElFaik S, Abdelmoumen H, Bedmar EJ, Missbah-El Idrissi M. Nodulation of Retama monosperma by Ensifer aridi in an Abandonned Lead Mine Soils in Eastern Morocco. Front Microbiol 2019; 10:1456. [PMID: 31396163 PMCID: PMC6663986 DOI: 10.3389/fmicb.2019.01456] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 02/14/2019] [Accepted: 06/11/2019] [Indexed: 12/02/2022] Open
Abstract
Millions tons of lead and zinc wastes from the abandoned Touissit mine are stored in the open air as dikes in the vicinity of the villages in Eastern Morocco and pose a real danger to both the environment and local populations. To prevent the movement of minerals to the nearby villages and limit the damages to the environment and health, we proposed the nitrogen-fixing leguminous shrub Retama monosperma, as a model plant to use for phytostabilization experimentations. This plant species is known by its ability to grow in hard climatic conditions and in heavy metals contaminated soils. The isolation of bacterial strains nodulating R. monosperma in the abandoned mine soils will permit the selection of rhizobia to inoculate young plant seedlings before their use for the phytostabilization of the mine tailings. In this work, 44 bacteria were isolated from the root nodules of R. Monosperma grown in the Touissit abandoned mine. Twenty-four isolates were considered as true rhizobia as they possess a copy of the nodC symbiotic gene and were able to renodulate their original host. The phenotypic characterization showed that all the strains are tolerant in vitro to different concentrations of heavy metals. The analysis of the 16S rRNA sequences of two selected representative strains showed they were related to different strains of Ensifer aridi isolated from different legumes in three continents deserts. The glnII, recA, and gyrB housekeeping genes analysis confirmed the affiliation of the strains to E. aridi. Moreover, the phylogenic analysis of nodA, nodC, and nifH symbiotic genes showed that the strains are more related to E. aridi JNVUTP6 species isolated from Tephrosia purpurea root nodules in the Thar Desert in India. To our knowledge, this is the first report about the isolation of E. aridi from R. monosperma root nodules.
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Affiliation(s)
- Hanane Lamin
- Center for Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Soufiane Alami
- Center for Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Omar Bouhnik
- Center for Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Salma ElFaik
- Center for Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Hanaa Abdelmoumen
- Center for Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Eulogio J Bedmar
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Mustapha Missbah-El Idrissi
- Center for Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
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Alami S, Lamin H, Bouhnik O, El Faik S, Filali-Maltouf A, Abdelmoumen H, Bedmar EJ, Missbah El Idrissi M. Astragalus algarbiensis is nodulated by the genistearum symbiovar of Bradyrhizobium spp. in Morocco. Syst Appl Microbiol 2019; 42:440-447. [DOI: 10.1016/j.syapm.2019.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/07/2019] [Accepted: 03/15/2019] [Indexed: 10/27/2022]
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Duburcq A, Fagnani F, Galperine T, Vanhems P, Le Monnier A, Alami S, Bensoussan C, Jeanbat V, Barbut F. Impact sur la qualité de vie d’un épisode d’infection à Clostridium difficile en milieu hospitalier. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.04.024] [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: 10/16/2022] Open
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Bouée S, Barbut F, Alami S, Bensoussan C, Gourmelen J, Bachelot LL. Surmortalité liée aux infections à Clostridium difficile. Rev Epidemiol Sante Publique 2017. [DOI: 10.1016/j.respe.2017.04.016] [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: 11/29/2022] Open
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Alami S, Palazzo C, Poiraudeau S. Checklists to manage pain induced by exercise and mobilization (PIEM) during physical therapy programs: PIEM checklists for practitioners and physiotherapists. Ann Phys Rehabil Med 2015; 58:66-73. [PMID: 25770007 DOI: 10.1016/j.rehab.2015.01.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 01/06/2015] [Accepted: 01/06/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Identify key informational and educational items ("messages") to provide to physicians (general practitioners and specialists) and physiotherapists for the management of pain induced by exercise and mobilization (PIEM). Develop checklists to improve this management in daily practice. MATERIAL AND METHODS The Delphi method for consensus-building was used to identify informational and educational messages for health professionals who deal with PIEM. Informed by the results of an extensive qualitative study, a panel of experts from 5 medical and paramedical disciplines concerned with PIEM and a representative of a patients' association were interviewed individually and iteratively in order to obtain a single, convergent opinion. RESULTS Delphi consultation helped to determine 9 areas corresponding to 54 key messages of information and education for doctors and physiotherapists who deal with PIEM. These messages relate to: defining, characterizing, identifying, and evaluating PIEM; identifying factors that may cause or increase this pain; informing the patient in order to avoid misinterpretation of PIEM; preventing and treating PIEM; and dealing with it during physical therapy sessions. The method also enabled us to develop 2 synthetic instruments (checklists) - 1 for physicians and 1 for physiotherapists - to help with the management of this pain. CONCLUSION Consulting a panel of experts comprising different categories of actors dealing with PIEM on the basis of a thorough qualitative diagnosis in order to identify messages for a training program makes it possible to harmonize programs with the expectations of patients and the problems encountered by professionals. The formulation of this program and the institutionalization of two checklists should enable health professionals to identify, qualify, and deal more effectively with PIEM.
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Affiliation(s)
| | - C Palazzo
- Service de rééducation et réadaptation de l'appareil locomoteur et des pathologies du rachis, hôpital Cochin, AP-HP, université Paris Descartes, PRES Sorbonne Paris cité, U1153, Institut national de la santé et de la recherche médicale, Paris, France
| | - S Poiraudeau
- Service de rééducation et réadaptation de l'appareil locomoteur et des pathologies du rachis, hôpital Cochin, AP-HP, université Paris Descartes, PRES Sorbonne Paris cité, U1153, Institut national de la santé et de la recherche médicale, Paris, France
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Mouthon L, Alami S, Desjeux D, Hachulla E, Poiraudeau S. Point de vue des patients, de leur famille et des médecins sur la sclérodermie systémique et la prise en charge des patients sclérodermiques : une étude qualitative. Rev Med Interne 2011. [DOI: 10.1016/j.revmed.2011.03.126] [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: 10/28/2022]
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Mouthon L, Alami S, Boutron I, Desjeux D, Hachulla E, Hirschhorn M, Poiraudeau S. Attentes des patients et des médecins dans la prise en charge de la sclérodermie systémique : résultats d’une étude prospective. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.10.055] [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: 10/20/2022]
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Couteau C, Alami S, Guitton M, Paparis E, Coiffard LJM. Mineral filters in sunscreen products--comparison of the efficacy of zinc oxide and titanium dioxide by in vitro method. Pharmazie 2008; 63:58-60. [PMID: 18271305] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
European legislation currently authorizes 26 sun filters among which, there is only one mineral filter: titanium dioxide. In the United States, two mineral filters are authorized: titanium dioxide in a maximum dose of 25% and zinc oxide. Zinc oxide is authorized in Europe, but its concentration level is not limited. A large number of commercial products are containing one of these mineral filters. The difference between these products lies in the percentage of the active substance, the way they are incorporated into the final product and the size of the primary particles. Depending on the ingredient used, there is a large variation in efficacy. The efficacy of the products tested was determined by an in vitro method using a spectrophotometer equipped with an integration sphere. Titanium dioxide was thus seen to be much more effective than zinc oxide; indeed no commercial form of zinc oxide tested can give a sun protection factor (SPF) higher than 10 at its maximum dose of use, unlike titanium dioxide which in its coated form (coated with alumina and with stearic acid, amongst others) gives a SPF of 38. This study has also allowed us to dispel the theory that talc--a raw material which has been used empirically for years in foundation in the belief that it has photoprotective effects--has an effect against sun rays. Talc proved to be particularly ineffective, as when it is used at a level of 25%, it only gives a totally negligible SPF of one unit.
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Affiliation(s)
- C Couteau
- Université de Nantes, Nantes Atlantique Universités, LPiC, Nantes, France
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Geha RS, Hyslop N, Alami S, Farah F, Schneeberger EE, Rosen FS. Hyper immunoglobulin M immunodeficiency. (Dysgammaglobulinemia). Presence of immunoglobulin M-secreting plasmacytoid cells in peripheral blood and failure of immunoglobulin M-immunoglobulin G switch in B-cell differentiation. J Clin Invest 1979; 64:385-91. [PMID: 313404 PMCID: PMC372130 DOI: 10.1172/jci109473] [Citation(s) in RCA: 70] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The peripheral blood lymphocytes of nine patients with hyper immunoglobulin (Ig)M immunodeficiency were studied in an attempt to define the cellular basis of this disorder. B cells were normal in number but qualitatively abnormal in all patients. Approximately one-half of the B cell consisted of small lymphocytes (7-9 mum in diameter) bearing surface IgM and IgD, as well as C3 receptors. These cells were driven to secrete IgM but not IgG after in vitro stimulation by pokeweed mitogen. In the blood there were also large lymphocytes (10-14 mum in diameter) that possessed surface as well as intracytoplasmic IgM but lacked C3 receptors. These cells spontaneously secreted large amounts of IgM in vitro and on electron microscopy were found to be rich in rough endoplasmic reticulum. Such a subpopulation of lymphoid cells was not detected in normal peripheral blood and was unique for all patients with hyper IgM immunodeficiency studied.T cells from all patients were normal in number and in function both in vivo and in vitro and were able to generate adequate T-cell help to support IgG synthesis by normal B cells. No evidence was obtained for T cells capable of suppressing normal IgG synthesis in any of the patients after coculture with normal peripheral blood lymphocytes. The defect in hyper IgM immunodeficiency is intrinsic to B cells, which fail to switch from IgM to IgG synthesis.
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