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A rhizosphere effect promotes the persistence of gas oxidization activity in soil

de la Porte, Anne; Durand, Audrey-Anne; Whalen, Joann; Yergeau, Étienne ORCID logoORCID: https://orcid.org/0000-0002-7112-3425 et Constant, Philippe ORCID logoORCID: https://orcid.org/0000-0003-2739-2801 (2024). A rhizosphere effect promotes the persistence of gas oxidization activity in soil Soil Biology and Biochemistry , vol. 199 , nº 109599. pp. 1-4. DOI: 10.1016/j.soilbio.2024.109599.

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Résumé


Labile carbon and nutrients of the rhizosphere promote the activity of trace gas oxidizing bacteria (TGOB), but the capacity of the rhizosphere effect to support their persistence upon activation has received less attention. Here, we hypothesized that the activation response of TGOB in soil before planting is proportional to the persistence of their activity after wheat growth. The TGOB were activated in sandy-loam and peat soils under a static atmosphere containing elevated concentration of hydrogen (H2), carbon monoxide (CO) or methane (CH4). Our hypothesis was proven to hold true in sandy-loam soil, whereas higher organic matter in peat soil was less favourable for the persistence of TGOB activity. We conclude that the energy potential of the trace gas oxidation reaction and soil nutrients both intervein in the persistence of TGOB activity.

Type de document: Article
Mots-clés libres: -
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 29 sept. 2024 05:21
Dernière modification: 29 sept. 2024 05:21
URI: https://espace.inrs.ca/id/eprint/15986

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