@article{fdi:010080007,
  title = {{A}quaporins are main contributors to root hydraulic conductivity in pearl millet [{P}ennisetum glaucum ({L}) {R}. {B}r.]},
  author = {{G}rondin, {A}lexandre and {A}ffortit, {P}. and {D}ubreuil {T}ranchant, {C}hristine and de la {F}uente-{C}anto, {C}. and {M}ariac, {C}{\'e}dric and {G}antet, {P}ascal and {V}adez, {V}incent and {V}igouroux, {Y}ves and {L}aplaze, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{P}earl millet is a key cereal for food security in arid and semi-arid regions but its yield is increasingly threatened by water stress. {P}hysiological mechanisms relating to conservation of soil water or increased water use efficiency can alleviate that stress. {A}quaporins ({AQP}) are water channels that mediate root water transport, thereby influencing plant hydraulics, transpiration and soil water conservation. {H}owever, {AQP} remain largely uncharacterized in pearl millet. {H}ere, we studied {AQP} function in root water transport in two pearl millet lines contrasting for water use efficiency ({WUE}). {W}e observed that these lines also contrasted for root hydraulic conductivity ({L}pr) and {AQP} contribution to {L}pr. {T}he line with lower {WUE} showed significantly higher {AQP} contribution to {L}pr. {T}o investigate {AQP} isoforms contributing to {L}pr, we developed genomic approaches to first identify the entire {AQP} family in pearl millet and secondly, characterize the plasma membrane intrinsic proteins ({PIP}) gene expression profile. {W}e identified and annotated 33 {AQP} genes in pearl millet, among which ten encoded {PIP} isoforms. {P}g{PIP}1-3 and {P}g{PIP}1-4 were significantly more expressed in the line showing lower {WUE}, higher {L}pr and higher {AQP} contribution to {L}pr. {O}verall, our study suggests that the {PIP}1 {AQP} family are the main regulators of {L}pr in pearl millet and may possibly be associated with mechanisms associated to whole plant water use. {T}his study paves the way for further investigations on {AQP} functions in pearl millet hydraulics and adaptation to environmental stresses.},
  keywords = {},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {15},
  numero = {10},
  pages = {0233481 [19 ]},
  ISSN = {1932-6203},
  year = {2020},
  DOI = {10.1371/journal.pone.0233481},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080007},
}