@article{fdi:010077366,
  title = {{N}ew {C}aledonian ultramafic conditions structure the features of {C}urtobacterium citreum strains that play a role in plant adaptation},
  author = {{B}ourles, {A}. and {G}uentas, {L}. and {C}halkiadakis, {E}. and {M}ajorel, {C}larisse and {J}uillot, {F}arid and {C}avaloc, {Y}. and {B}urtet-{S}arramegna, {V}. and {M}edevielle, {V}. and {J}ourand, {P}hilippe and {A}mir, {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he present study focused on the characterization of 10 {C}urtobacterium citreum strains isolated from the rhizosphere of pioneer plants growing on ultramafic soils from {N}ew {C}aledonia. {T}axonomic status was investigated using a polyphasic approach. {T}hree strains ({BE}, {BB}, and {AM}) were selected in terms of multiple-metal resistance and plant-growth-promoting traits. {T}hey were tested on sorghum growing on ultramafic soil and compared with the reference strain {C}. citreum {DSM}20528({T}). {T}o better understand the bacterial mechanisms involved, biosorption, bioaccumulation, and biofilm formation were investigated for the representative strain of the ultramafic cluster (strain {BE}) versus {C}. citreum {DSM}20528({T}). {T}he polyphasic approach confirmed that all native isolates belong to the same cluster and are {C}. citreum. {T}he inoculation of sorghum with strains {BE} and {BB} significantly reduced {N}i content in shoots compared with inoculation with {C}. citreum {DSM}20528({T}) and control values. {T}his result was related to the higher {N}i tolerance of the ultramafic strains compared with {C}. citreum {DSM}20528({T}). {N}i biosorption and bioaccumulation showed that {BE} exhibited a lower {N}i content, which is explained by the ability of this strain to produce exopolysaccharides involved in {N}i chelation. {W}e suggested that ultramafic {C}. citreum strains are more adapted to this substrate than is {C}. citreum {DSM}20528({T}), and their features allow them to enhance plant metal tolerance.},
  keywords = {{C}urtobacterium citreum ; ultramafic soils ; metal tolerance ; exopolysaccharide ; plant metal alleviation ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{C}anadian {J}ournal of {M}icrobiology},
  volume = {65},
  numero = {12},
  pages = {880--894},
  ISSN = {0008-4166},
  year = {2019},
  DOI = {10.1139/cjm-2019-0283},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077366},
}