@article{fdi:010057021, title = {{I}mpact of rhizobial inoculation on {A}cacia senegal ({L}.) {W}illd. growth in greenhouse and soil functioning in relation to seed provenance and soil origin}, author = {{B}akhoum, {N}. and {N}doye, {F}. and {K}ane, {A}. and {A}ssigbets{\'e}, {K}omi and {F}all, {D}. and {S}ylla, {S}. {N}. and {N}oba, {K}. and {D}iouf, {D}.}, editor = {}, language = {{ENG}}, abstract = {{R}hizobial 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. {I}t was therefore necessary to test the effect of inoculation of {A}cacia senegal ({L}.) {W}illd. 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. {I}n order to carry out this experiment, three {A}. senegal seeds provenance from {K}enya, {N}iger, and {S}enegal were inoculated with selected rhizobial strains. {T}hey have been further grown during 4 months in greenhouse conditions in two non-disinfected soils, {D}ahra and {G}oudiry coming respectively from arid and semi-arid areas. {T}he principal component analysis ({ACP}) showed an inoculation effect on plant growth, rhizospheric bacterial diversity and soil functioning. {H}owever, the performances of the rhizobial strains varied in relation to the seed provenance and the soil origin. {T}he 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. {I}t is interesting to note that bacterial communities of {D}ahra soil were highly structured according to {A}. senegal provenance, whereas they were structured in relation to rhizobial inoculation in {G}oudiry soil. {B}esides, the impact of inoculation on soil microbial activities measured by fluorescein diacetate analyses varied in relation to plant provenance and soil origin. {N}evertheless, total microbial activity was about two times higher in {G}oudiry, arid soil than in {D}ahra, semi-arid soil. {O}ur results suggest that the rhizobial inoculation is a suitable tool for improving plants growth and soil fertility. {Y}et, the impact is dependent on inoculants, plant provenance and soil origin. {I}t will, therefore, be crucial to identify the appropriate rhizobial strains and plant provenance or species in relation to the soil type.}, keywords = {{R}hizobial inoculation ; {A}cacia senegal ; {E}nvironment ; {M}icrobial diversity ; {S}oil biofunctioning ; {F}ertility}, booktitle = {}, journal = {{W}orld {J}ournal of {M}icrobiology and {B}iotechnology}, volume = {28}, numero = {7}, pages = {2567--2579}, ISSN = {0959-3993}, year = {2012}, DOI = {10.1007/s11274-012-1066-6}, URL = {https://www.documentation.ird.fr/hor/fdi:010057021}, }