Arid
DOI10.1016/j.syapm.2016.01.001
Recovery of symbiotic nitrogen fixing acacia rhizobia from Merzouga Desert sand dunes in South East Morocco - Identification of a probable new species of Ensifer adapted to stressed environments
Sakrouhi, Ilham1; Belfquih, Meryem1,2; Sbabou, Laila1; Moulin, Patricia1,3; Bena, Gilles1,4; Filali-Maltouf, Abdelkarim1; Le Quere, Antoine1,2
通讯作者Le Quere, Antoine
来源期刊SYSTEMATIC AND APPLIED MICROBIOLOGY
ISSN0723-2020
出版年2016
卷号39期号:2页码:122-131
英文摘要

Bacteria capable of nodulating Acacia tortilis and A. gummifera could be recovered from sand dunes collected in the Moroccan Merzouga desert. The trapping approach enabled the recovery of 17 desert rhizobia that all clustered within the Ensifer (Sinorhizobium) genus. Four isolates of the dominant genotype comprising 15 strains as well as 2 divergent strains were further characterized by MESA. Phylogenetic analyzes indicated that the dominant genetic type was belonging to a new and yet undefined species within the Ensifer genus. Interestingly, housekeeping gene phylogenies showed that this possibly new species is also present in another desert but in India. Phylogenetic analyses of nifH and nodC sequences showed high sequence conservation among the Moroccan strains belonging to the dominant genotype but high divergence with sequences from Indian isolates suggesting acquisition of symbiotic genes through Horizontal Gene Transfer. These desert rhizobia were capable of growing in media containing high salt concentrations, under high pH and most of the strains showed growth at 45 degrees C. Only recovered from desert type of Biome, yet, this new taxon appears particularly adapted to such harsh environment. (C) 2016 Elsevier GmbH. All rights reserved.


英文关键词Hot desert Africa Acacia rhizobia Ensifer Symbiosis Phylogeny
类型Article
语种英语
国家Morocco ; France
收录类别SCI-E
WOS记录号WOS:000373420400007
WOS关键词MULTILOCUS SEQUENCE-ANALYSIS ; AUSTRALIAN ACACIA ; LEGUMINOUS TREES ; SP NOV. ; SINORHIZOBIUM-MELILOTI ; BACTERIAL DIVERSITY ; AFRICAN ACACIAS ; THAR DESERT ; DESERTIFICATION ; LEGUMES
WOS类目Biotechnology & Applied Microbiology ; Microbiology
WOS研究方向Biotechnology & Applied Microbiology ; Microbiology
来源机构French National Research Institute for Sustainable Development
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196613
作者单位1.Univ Mohammed V Agdal, Fac Sci, Lab Microbiol & Biol Mol, Rabat, Morocco;
2.UMR113 IRD CIRAD SupAgro UM INRA, Inst Rech Dev, Lab Symbioses Trop & Mediterraneennes, Campus Int Baillarguet, F-34398 Montpellier 5, France;
3.Inst Rech Dev, Eco&Sols UMR210, Campus SupAgro,Pl Viala,Bat 12, F-34060 Montpellier 2, France;
4.Ctr IRD France Sud, Inst Rech Dev, IPME UMR186, 911 Ave Agropolis,BP 64501, F-34394 Montpellier 5, France
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Sakrouhi, Ilham,Belfquih, Meryem,Sbabou, Laila,et al. Recovery of symbiotic nitrogen fixing acacia rhizobia from Merzouga Desert sand dunes in South East Morocco - Identification of a probable new species of Ensifer adapted to stressed environments[J]. French National Research Institute for Sustainable Development,2016,39(2):122-131.
APA Sakrouhi, Ilham.,Belfquih, Meryem.,Sbabou, Laila.,Moulin, Patricia.,Bena, Gilles.,...&Le Quere, Antoine.(2016).Recovery of symbiotic nitrogen fixing acacia rhizobia from Merzouga Desert sand dunes in South East Morocco - Identification of a probable new species of Ensifer adapted to stressed environments.SYSTEMATIC AND APPLIED MICROBIOLOGY,39(2),122-131.
MLA Sakrouhi, Ilham,et al."Recovery of symbiotic nitrogen fixing acacia rhizobia from Merzouga Desert sand dunes in South East Morocco - Identification of a probable new species of Ensifer adapted to stressed environments".SYSTEMATIC AND APPLIED MICROBIOLOGY 39.2(2016):122-131.
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