@article{fdi:010072767,
  title = {{C}haracterization of {N}2{O} emissions and associated microbial communities from the ant mounds in soils of a humid tropical rainforest},
  author = {{M}ajeed, {M}. {Z}. and {M}iambi, {E}. and {B}arois, {I}. and {B}ernoux, {M}artial and {B}rauman, {A}lain},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ropical rainforest soils harbor a considerable diversity of soil fauna that contributes to emissions of {N}2{O}. {D}espite their ecological dominance, there is limited information available about the contribution of epigeal ant mounds to {N}2{O} emissions in these tropical soils. {T}his study aimed to determine whether ant mounds contribute to local soil {N} emissions in the tropical humid rainforest. {N}2{O} emission was determined in vitro from individual live ants, ant-processed mound soils, and surrounding reference soils for two trophically distinct and abundant ant species: the leaf-cutting {A}tta mexicana and omnivorous {S}olenopsis geminata. {T}he abundance of total bacteria, nitrifiers ({AOA} and {AOB}), and denitrifiers (nir{K}, nir{S}, and nos{Z}) was estimated in these soils using quantitative {PCR}, and their respective mineral {N} contents determined. {T}here was negligible {N}2{O} emission detected from live ant individuals. {H}owever, the mound soils of both species emitted significantly greater (3-fold) amount of {N}2{O} than their respective surrounding reference soils. {T}his emission increased significantly up to 6-fold in the presence of acetylene, indicating that, in addition to {N}2{O}, dinitrogen ({N}-2) is also produced from these mound soils at an equivalent rate ({N}2{O}/{N}-2 = 0.57). {F}unctional gene abundance (nitrifiers and denitrifiers) and mineral {N} pools (ammonium and nitrate) were significantly greater in mound soils than in their respective reference soils. {F}urthermore, in the light of the measured parameters and their correlation trends, nitrification and denitrification appeared to represent the major {N}2{O}-producing microbial processes in ant mound soils. {T}he ant mounds were estimated to contribute from 0.1 to 3.7% of the total {N}2{O} emissions of tropical rainforest soils.},
  keywords = {{A}ntmounds ; {T}ropical forest soil ; {N}-cycle genes ; {N}itrous oxideemission ; {M}icrobial denitrification ; {A}ttamexicana ; {S}olenopsis geminata ; {MEXIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{F}olia {M}icrobiologica},
  volume = {63},
  numero = {3},
  pages = {381--389},
  ISSN = {0015-5632},
  year = {2018},
  DOI = {10.1007/s12223-017-0575-y},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072767},
}