@article{fdi:010062312,
  title = {{B}acterial capacities to mineralize phytate increase in the rhizosphere of nodulated common bean ({P}haseolus vulgaris) under {P} deficiency},
  author = {{M}aougal, {R}. {T}. and {B}rauman, {A}lain and {P}lassard, {C}. and {A}badie, {J}. and {D}jekoun, {A}. and {D}revon, {J}. {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}hytate (a form of {I}nositol phosphate), which is one of the most abundant sources of organic phosphorus ({P}o) in soils, needs to be mineralized by microbial phosphatases to become available for plants. {P}hytases are the most active phosphatases for the dephosphorylation of phytate but the ecology of the phytate mineralising bacteria ({PMB}) remains poorly understood. {T}he aim of this work was to determine if {PMB} represent an important component of the rhizosphere of legumes and if their density and their activities depend upon the soil-{P} availability. {I}n this work the density, activity and phylogenetic affiliation of the {PMB} were characterized in the nodulated rhizosphere of a legume ({P}haseolus vulgaris) grown in two soils with contrasting {L}ow-{P} or {P}-sufficient content {S}creened on solid medium, the density of {PMB} was higher in the rhizosphere of common bean than in the bulk soil only when plants were cultured on the low-{P} soil. {I}n liquid culture, half of the rhizosphere isolates were able to use phytate as the sole {P} source and to release free inorganic {P} in the medium at rates much higher when bacterial strains were isolated from low-{P} than from {P}-sufficient soil. {E}nzymatic activity confirmed the ability of these rhizosphere isolates to mineralize phytate. {W}hatever the soil {P} level, the {PMB} belonged to the same genera {P}seudomonas, {P}antoae, {E}nterobacter and {S}almonella, but not {B}acillus. {O}ur work demonstrates that low soil {P} availability increases both {PMB} density in the rhizosphere compared to the bulk soil and the activities of {PMB} populations through different growth patterns.},
  keywords = {{P}haseolus vulgaris ; {P}hytase activity ; {P}hosphorus ; {R}hizosphere ; {S}oil bacteria},
  booktitle = {},
  journal = {{E}uropean {J}ournal of {S}oil {B}iology},
  volume = {62},
  numero = {},
  pages = {8--14},
  ISSN = {1164-5563},
  year = {2014},
  DOI = {10.1016/j.ejsobi.2014.02.006},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062312},
}