@article{fdi:010068233,
  title = {{P}hosphorus availability and microbial community in the rhizosphere of intercropped cereal and legume along a {P}-fertilizer gradient},
  author = {{T}ang, {X}. {Y}. and {P}lacella, {S}. {A}. and {D}ayde, {F}. and {B}ernard, {L}aetitia and {R}obin, {A}. and {J}ournet, {E}. {P}. and {J}ustes, {E}. and {H}insinger, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}ositive below-ground interactions (facilitation) should be more pronounced when resources limit crop growth, according to the stress-gradient hypothesis. {O}ur aim was to test this hypothesis for intercropped durum wheat and faba bean along a {P}-fertilizer gradient. {A} field experiment was conducted in a long-term {P}-fertilizer trial with three rates of {P}-fertilization ({N}o, {L}ow and {H}igh {P}). {M}icrobial biomass was assessed by chloroform fumigation-extraction. {Q}uantitative {PCR} was applied to evaluate the abundance of relevant microbial groups. {P}hosphorus availability and microbial biomass systematically increased in the rhizosphere compared to bulk soil. {P}-fertilization resulted in higher abundance of targeted bacterial phyla, whole bacterial and fungal communities, and depressed mycorrhizal colonization of durum wheat, but not faba bean. {M}icrobial biomass carbon significantly increased in the rhizosphere only in {P}-fertilized treatments, pointing to {P} limitation of microbial communities. {I}ntercropping yielded a significant effect on rhizosphere microbial properties only at {H}igh {P}. {M}icrobial biomass {P} increased in the rhizosphere of intercropped faba bean only at {N}o {P} level, and was thus the sole finding supporting the stress-gradient hypothesis. {P}-fertilization was the main driver of microbial communities in this field trial, and {P}-fertilizer application modulated the species-specific effect in the intercrop. {P}lant performance did not validate the stress-gradient hypothesis as positive plant-plant interactions occurred regardless of the level of {P}-fertilization.},
  keywords = {{R}hizosphere ; {I}ntercrop ; {P} availability ; {L}ong-term fertilization ; {M}icrobial community ; {M}ycorrhizal colonization ; {FRANCE}},
  booktitle = {},
  journal = {{P}lant and {S}oil},
  volume = {407},
  numero = {1-2},
  pages = {119--134},
  ISSN = {0032-079{X}},
  year = {2016},
  DOI = {10.1007/s11104-016-2949-3},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068233},
}