@article{PAR00000369, title = {{R}elations between rhizobial nodulation and root colonization of {A}cacia crassicarpa provenances by an arbuscular mycorrhizal fungus, {G}lomus intraradices {S}chenk and {S}mith or an ectomycorrhizal fungus, {P}isolithus tinctorius {C}oker and {C}ouch}, author = {{L}esueur, {D}. and {D}uponnois, {R}.}, editor = {}, language = {{ENG}}, abstract = {{T}he present study was initiated to (i) determine the ability of an ectomycorrhizal and an arbuscular mycorrhizal symbiont to colonize three provenances of {A}cacia crassicarpa root systems, (ii) to examine plant growth response to the mycorrhizal inoculation and (iii) to measure their influence on the rhizobial symbiosis with a {B}radyrhizobium isolate. {T}his study has been performed with 2 fungal symbionts: {G}lomus intraradices, an {A}rbuscular {M}ycorrhizal fungus, and an ectomycorrhizal fungus {P}isolithus tinctorius strain {GEMAS}. {T}wo experiments have been performed during two different climatic periods, hot season ( 30 degrees {C} day, 20 degrees {C} night, {J}une to {O}ctober) for ectomycorrhizal inoculation and cold season ( 25 degrees {C} day, 15 degrees {C} night, {N}ovember to {M}arch) for endomycorrhizal inoculation. {M}oreover, {B}radyrhizobium sp. strain {A}us13{C} has been co-inoculated with each of these fungal symbionts. {T}he results showed that ectomycorrhizal and {AM} fungal symbiosis clearly benefit to the growth of {A}. crassicarpa provenances and these fungal symbioses greatly improve the rhizobial nodulation process. {H}owever, some differences of growth were observed between the provenances tested and our results showed that both {P}apua {N}ew {G}uinea provenances produced more important total biomass than the provenance from {M}adagascar in both experiments {H}owever, no significant differences were observed in terms of nodulation and mycorrhization. {F}urther research must be undertaken to identify the convenient ecological characteristics in which each kind of mycorrhizal symbiosis exerts the best effect on plant growth and nodulation formation and to identify in such environmental conditions the better rhizobial/mycorrhizal symbiosis combination.}, keywords = {{A}cacia crassicarpa ; arbuscular mycorrhizas ; ectomycorrhizas ; rhizobium}, booktitle = {}, journal = {{A}nnals of {F}orest {S}cience}, volume = {62}, numero = {5}, pages = {467--474}, ISSN = {1286-4560}, year = {2005}, DOI = {10.1051/forest:2005043}, URL = {https://www.documentation.ird.fr/hor/{PAR}00000369}, }