@article{fdi:010055848,
  title = {{E}arly development and gravitropic response of lateral roots in {A}rabidopsis thaliana},
  author = {{G}uyomarc'h, {S}. and {L}eran, {S}. and {A}uzon-{C}ape, {M}. and {P}errine-{W}alker, {F}. and {L}ucas, {M}ika{\¨e}l and {L}aplaze, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{R}oot system architecture plays an important role in determining nutrient and water acquisition and is modulated by endogenous and environmental factors, resulting in considerable developmental plasticity. {T}he orientation of primary root growth in response to gravity (gravitropism) has been studied extensively, but little is known about the behaviour of lateral roots in response to this signal. {H}ere, we analysed the response of lateral roots to gravity and, consistently with previous observations, we showed that gravitropism was acquired slowly after emergence. {U}sing a lateral root induction system, we studied the kinetics for the appearance of statoliths, phloem connections and auxin transporter gene expression patterns. {W}e found that statoliths could not be detected until 1 day after emergence, whereas the gravitropic curvature of the lateral root started earlier. {A}uxin transporters modulate auxin distribution in primary root gravitropism. {W}e found differences regarding {PIN}3 and {AUX}1 expression patterns between the lateral root and the primary root apices. {E}specially {PIN}3, which is involved in primary root gravitropism, was not expressed in the lateral root columella. {O}ur work revealed new developmental transitions occurring in lateral roots after emergence, and auxin transporter expression patterns that might explain the specific response of lateral roots to gravity.},
  keywords = {lateral root ; gravitropism ; auxin transporters ; vascular connection ; {PIN}3 ; {AUX}1},
  booktitle = {},
  journal = {{P}hilosophical {T}ransactions of the {R}oyal {S}ociety {B}. {B}iological {S}ciences},
  volume = {367},
  numero = {1595},
  pages = {1509--1516},
  ISSN = {0962-8436},
  year = {2012},
  DOI = {10.1098/rstb.2011.0231},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055848},
}