@article{fdi:010042710,
  title = {{PRD}, an {A}rabidopsis {AINTEGUMENTA}-like gene, is involved in root architectural changes in response to phosphate starvation},
  author = {{C}amacho-{C}ristobal, {J}. {J}. and {R}exach, {J}. and {C}onejero, {G}. and {A}l-{G}hazi, {Y}. and {N}acry, {P}. and {D}oumas, {P}atrick},
  editor = {},
  language = {{ENG}},
  abstract = {{C}hanges in root architecture are one of the adaptive strategies used by plants to compensate for local phosphate ({P}i) deficiency in soils. {R}oot architecture variables triggered by {P}i availability are well documented in {A}rabidopsis ({A}rabidopsis thaliana), but the molecular mechanisms behind these adaptive responses remain to be elucidated. {B}y the use of transcriptomic and quantitative {RT}-{PCR} analysis, we observed that an {AINTEGUMENTA}-like gene, named {PRD} for {P}hosphate {R}oot {D}evelopment, was rapidly repressed in roots under low {P}i conditions. {T}he physiological function of the {PRD} gene was analyzed through the null allele mutant prd, which displayed less development of primary and lateral roots under {P}i-starvation conditions than wild-type plants. {C}omplementation of the prd mutant with the wild-type gene led to a similar response to {P}i starvation as wild-type plants, indicating the complete rescue of the mutant phenotype. {T}hese results suggest that {PRD} gene is involved in the regulation of root architectural responses to {P}i starvation by controlling primary and lateral root elongation. {T}his model is in agreement with the tissue-specific pattern of {PRD} gene expression, which was observed to occur specifically in the apex in both the primary and lateral roots. {H}owever, {P}i influx, anionic profiles and root expression of genes typically induced by {P}i starvation, such as high affinity {P}i transporters ({PHT}1;1 and {PHT}1;4) and an acid phosphatase ({A}t{ACP}5), were similar in wild type and prd plants in response to {P}i starvation. {T}hese results support the hypothesis that the {PRD} gene is not a checkpoint for {P}i-starvation responses, but acts specifically as a regulator of root architectural responses to {P}i starvation.},
  keywords = {{A}rabidopsis ; {P}hosphate starvation ; {R}oot development ; {T}ranscription factor},
  booktitle = {},
  journal = {{P}lanta},
  volume = {228},
  numero = {3},
  pages = {511--522},
  ISSN = {0032-0935},
  year = {2008},
  DOI = {10.1007/s00425-008-0754-9},
  URL = {https://www.documentation.ird.fr/hor/fdi:010042710},
}