Arid
DOI10.1111/j.1472-765X.2008.02389.x
Phenotypic and genotypic characteristics of Acacia senegal (L.) Willd. root-nodulating bacteria isolated from soils in the dryland part of Senegal
Fall, D.1,2; Diouf, D.1,2; Ourarhi, M.; Faye, A.2; Abdelmounen, H.; Neyra, M.3; Sylla, S. N.1,2; El Idrissi, M. Missbah
通讯作者Diouf, D.
来源期刊LETTERS IN APPLIED MICROBIOLOGY
ISSN0266-8254
出版年2008
卷号47期号:2页码:85-97
英文摘要

Aims: We characterized phenotypically and genotypically root-nodulating bacteria associated with Acacia senegal (L.) Willd. isolated from the soils surrounding A. senegal trees in the dry land area of Senegal.


Methods and Results: The phenotypical and genotypical characterizations we carried out showed a high diversity of A. senegal root-nodulating bacteria. Phenotypic patterns showed adaptations of the rhizobial strains to many environmental stresses such as heat, drought, and salinity. Twelve molecular groups were distinguished by profiles obtained using polymerase chain reaction/restriction fragment length polymorphism techniques from intergenic spacer region rDNA. The highest genetic diversity was found around the A. senegal rhizosphere. Therefore, A. senegal seemed to have a positive influence on occurrence and genotypical diversity of rhizobial populations. Rhizobial isolates obtained in this study belonged phylogenetically to the genera Mesorhizobium and Rhizobium.


Conclusions: Our results provided information about the genetic diversity of the rhizobial strains associated with A. senegal and suggested the adaptability of natural rhizobial populations to major ecological environmental stress within these soil environments.


Significance and Impact of the Study: These results suggested a potential selection of compatible and well adapted strains under stress conditions as inoculants for successful A. senegal growth in arid lands.


英文关键词acacia senegal diversity ecology genotyping molecular genetic stress response symbiosis
类型Article
语种英语
国家Senegal ; France
收录类别SCI-E
WOS记录号WOS:000258220400004
WOS关键词RHIZOBIAL POPULATIONS ; NITROGEN-FIXATION ; ANTIBIOTIC-RESISTANCE ; NATURAL-POPULATIONS ; LEGUMINOUS TREES ; SONORAN DESERT ; SP-NOV ; STRAINS ; TOLERANCE ; DIVERSITY
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/2XILL650/158516
作者单位1.Univ Cheikh Anta Diop, Dept Biol Veg, Dakar, Senegal;
2.UCAD, IRD, ISRA, Lab Commun Microbiol, Dakar, Senegal;
3.USC INRA 1242, IRD UMR 113, IRD CIRAD AGRO M UM2, Lab Symbioses Trop & Mediterraneennes, Montpellier, France
推荐引用方式
GB/T 7714
Fall, D.,Diouf, D.,Ourarhi, M.,et al. Phenotypic and genotypic characteristics of Acacia senegal (L.) Willd. root-nodulating bacteria isolated from soils in the dryland part of Senegal[J]. French National Research Institute for Sustainable Development,2008,47(2):85-97.
APA Fall, D..,Diouf, D..,Ourarhi, M..,Faye, A..,Abdelmounen, H..,...&El Idrissi, M. Missbah.(2008).Phenotypic and genotypic characteristics of Acacia senegal (L.) Willd. root-nodulating bacteria isolated from soils in the dryland part of Senegal.LETTERS IN APPLIED MICROBIOLOGY,47(2),85-97.
MLA Fall, D.,et al."Phenotypic and genotypic characteristics of Acacia senegal (L.) Willd. root-nodulating bacteria isolated from soils in the dryland part of Senegal".LETTERS IN APPLIED MICROBIOLOGY 47.2(2008):85-97.
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