Arid
DOI10.1007/s11274-012-1066-6
Impact of rhizobial inoculation on Acacia senegal (L.) Willd. growth in greenhouse and soil functioning in relation to seed provenance and soil origin
Bakhoum, Niokhor1,2; Ndoye, Fatou1,2; Kane, Aboubacry1,2; Assigbetse, Komi3; Fall, Dioumacor1,4; Sylla, Samba Ndao1,2; Noba, Kandioura2; Diouf, Diegane1,2
通讯作者Diouf, Diegane
来源期刊WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
ISSN0959-3993
出版年2012
卷号28期号:7页码:2567-2579
英文摘要

Rhizobial inoculation has a positive impact on plants growth; however, there is little information about its effect on soil microbial communities and their activity in the rhizosphere. It was therefore necessary to test the effect of inoculation of Acacia senegal (L.) Willd. seedlings with selected rhizobia on plant growth, structure and diversity of soil bacterial communities and soil functioning in relation to plant provenance and soil origin. In order to carry out this experiment, three A. senegal seeds provenance from Kenya, Niger, and Senegal were inoculated with selected rhizobial strains. They have been further grown during 4 months in greenhouse conditions in two non-disinfected soils, Dahra and Goudiry coming respectively from arid and semi-arid areas. The principal component analysis (ACP) showed an inoculation effect on plant growth, rhizospheric bacterial diversity and soil functioning. However, the performances of the rhizobial strains varied in relation to the seed provenance and the soil origin. The selected rhizobial strains, the A. senegal provenance and the soil origin have modified the structure and the diversity of soil bacterial communities as measured by principal component analysis/denaturing gradient gel electrophoresis analyses. It is interesting to note that bacterial communities of Dahra soil were highly structured according to A. senegal provenance, whereas they were structured in relation to rhizobial inoculation in Goudiry soil. Besides, the impact of inoculation on soil microbial activities measured by fluorescein diacetate analyses varied in relation to plant provenance and soil origin. Nevertheless, total microbial activity was about two times higher in Goudiry, arid soil than in Dahra, semi-arid soil. Our results suggest that the rhizobial inoculation is a suitable tool for improving plants growth and soil fertility. Yet, the impact is dependent on inoculants, plant provenance and soil origin. It will, therefore, be crucial to identify the appropriate rhizobial strains and plant provenance or species in relation to the soil type.


英文关键词Rhizobial inoculation Acacia senegal Environment Microbial diversity Soil biofunctioning Fertility
类型Article
语种英语
国家Senegal
收录类别SCI-E
WOS记录号WOS:000306074800014
WOS关键词GRADIENT GEL-ELECTROPHORESIS ; 16S RIBOSOMAL-RNA ; CROP-ROTATION SYSTEMS ; BACTERIAL COMMUNITIES ; MICROBIAL BIOMASS ; SIZE FRACTIONS ; DIVERSITY ; NODULATION ; FIXATION ; GENE
WOS类目Biotechnology & Applied Microbiology
WOS研究方向Biotechnology & Applied 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/2XILL650/175340
作者单位1.IRD ISRA UCAD, Lab Commun Microbiol, Ctr Rech Bel Air, Dakar 18524, Senegal;
2.Univ Cheikh Anta Diop Dakar, Fac Sci & Tech, Dept Biol Vegetal, Dakar, Senegal;
3.IRD, Lab Ecol Microbienne Sols & Agrosyst Trop, Ctr Rech Bel Air, Dakar 18524, Senegal;
4.CNRF, ISRA, Dakar, Senegal
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GB/T 7714
Bakhoum, Niokhor,Ndoye, Fatou,Kane, Aboubacry,et al. Impact of rhizobial inoculation on Acacia senegal (L.) Willd. growth in greenhouse and soil functioning in relation to seed provenance and soil origin[J]. French National Research Institute for Sustainable Development,2012,28(7):2567-2579.
APA Bakhoum, Niokhor.,Ndoye, Fatou.,Kane, Aboubacry.,Assigbetse, Komi.,Fall, Dioumacor.,...&Diouf, Diegane.(2012).Impact of rhizobial inoculation on Acacia senegal (L.) Willd. growth in greenhouse and soil functioning in relation to seed provenance and soil origin.WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,28(7),2567-2579.
MLA Bakhoum, Niokhor,et al."Impact of rhizobial inoculation on Acacia senegal (L.) Willd. growth in greenhouse and soil functioning in relation to seed provenance and soil origin".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 28.7(2012):2567-2579.
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