@article{fdi:010061343,
  title = {{T}he roles of biological interactions and pollutant contamination in shaping microbial benthic community structure},
  author = {{L}ouati, {H}. and {B}en {S}aid, {O}. and {S}oltani, {A}. and {G}ot, {P}. and {M}ahmoudi, {E}. and {C}ravo-{L}aureau, {C}. and {D}uran, {R}. and {A}issa, {P}. and {P}ringault, {O}livier},
  editor = {},
  language = {{ENG}},
  abstract = {{B}iological interactions between metazoans and the microbial community play a major role in structuring food webs in aquatic sediments. {P}ollutants can also strongly affect the structure of meiofauna and microbial communities. {T}his study aims investigating, in a non-contaminated sediment, the impact of meiofauna on bacteria facing contamination by a mixture of three {PAH}s (fluoranthene, phenanthrene and pyrene). {S}ediment microcosms were incubated in the presence or absence of meiofauna during 30 days. {B}ioremediation treatments, nutrient amendment and addition of a hydrocarbon-degrading bacterium, were also tested to enhance {PAH} biodegradation. {R}esults clearly show the important role of meiofauna as structuring factor for bacterial communities with significant changes observed in the molecular fingerprints. {H}owever, these structural changes were not concomitant with changes in biomass or function. {PAH} contamination had a severe impact on total meiofaunal abundance with a strong decrease of nematodes and the complete disappearance of polychaetes and copepods. {I}n contrast, correspondence analysis, based on {T}-{RFLP} fingerprints, showed that contamination by {PAH} resulted in small shifts in microbial composition, with or without meiofauna, suggesting a relative tolerance of bacteria to the {PAH} cocktail. {T}he {PAH} bioremediation treatments were highly efficient with more than 95% biodegradation. {N}o significant difference was observed in presence or absence of meiofauna. {N}utrient addition strongly enhanced bacterial and meiofaunal abundances as compared to control and contaminated microcosms, as well as inducing important changes in the bacterial community structure. {N}utrients thus were the main structural factor in shaping bacterial community composition, while the role of meiofauna was less evident.},
  keywords = {{M}eiofauna ; {B}acteria ; {B}ioremediation ; {PAH}-degraders ; {M}icrocosms ; {B}izerte ; lagoon ; {TUNISIE}},
  booktitle = {},
  journal = {{C}hemosphere},
  volume = {93},
  numero = {10},
  pages = {2535--2546},
  ISSN = {0045-6535},
  year = {2013},
  DOI = {10.1016/j.chemosphere.2013.09.069},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061343},
}