@article{fdi:010037654,
  title = {{F}luorescent pseudomonads occuring in {M}acrotermes subhyalinus mound structures decrease {C}d toxicity and improve its accumulation in sorghum plants},
  author = {{D}uponnois, {R}obin and {K}isa, {M}arija and {A}ssigbets{\'e}, {K}omi and {P}rin, {Y}. and {T}hioulouse, {J}. and {I}ssartel, {M}. and {M}oulin {E}smard, {P}atricia and {L}epage, {M}ichel},
  editor = {},
  language = {{ENG}},
  abstract = {{C}d-tolerant bacterial strains of fluorescent pseudomonads, mostly belonging to {P}seudomonas monteillii, were isolated from termite mound soil ({M}acrotermes subhyalinus, a litter-forager and fungus-growing termite), in a {S}udanese shrubby savanna, {B}urkina {F}aso. {S}uch large mounds appeared as sites of great bacterial diversity and could be considered as hot spots of metal-tolerant fluorescent pseudomonads. {M}icrobial isolates were inoculated to {S}orghum plants ({S}. bicolor) in glasshouse experiments with soil amended with {C}d{C}l2 (560 mg {C}d kg(-1) soil). {M}icrobial functional diversity was assessed at the end of the experiment by measurement of in situ patterns of catabolic potentials. {A}ll the bacteria isolates significantly improved the shoot and total biomass of sorghum plants compared to the control. {R}esults concerning root biomass were not significant with some strains. {A}rbuscular mycorrhiza ({AM}) was greatly reduced by {C}d{C}l2 amendment, and fluorescent pseudomonad inoculation significantly increased {AM} colonisation in the contaminated soil. {T}he bacterial inoculation significantly improved {C}d uptake by sorghum plants. {M}easurement of catabolic potentials on 16 substrates showed that the microbial communities were different according to the soil amendment. {S}oils samples inoculated with pseudomonad strains presented a higher use of ketoglutaric and hydroxybutiric acids, as opposed to fumaric acid in soil samples not inoculated. {I}t is suggested that fluorescent pseudomonads could act indirectly in such metabolic processes by involving a lower rate of degradation of citric acid, in line with the effect of small organic acid on phytoextraction of heavy metals from soil. {T}his is a first contribution to bioremediation of metal-contaminated sites with soil-to-plant transfer, using termite built structures. {F}urther data are required on the efficiency of the bacterial strains isolated and on the processes involved. (c) 2006 {E}lsevier {B}.{V}. {A}ll rights reserved.},
  keywords = {heavy metals ; termite ; phyremediation ; fluorescent pseudomonads ; arbuscular mycorrhizal fungi},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {370},
  numero = {2-3},
  pages = {391--400},
  ISSN = {0048-9697},
  year = {2006},
  DOI = {10.1016/j.scitotenv.2006.07.008},
  URL = {https://www.documentation.ird.fr/hor/fdi:010037654},
}