Species coexistence in nitrifying chemostats: a model of microbial interactions
| Autor: | Maxime Dumont, Jean-Jacques Godon, Jérôme Harmand |
|---|---|
| Přispěvatelé: | Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
chemostat
chemostat models [SDV]Life Sciences [q-bio] coexistence lcsh:Chemical technology microbial interactions interaction microbienne lcsh:Chemistry ammonium modèle mathématique lcsh:QD1-999 azote soluble ecosystem functions lcsh:TP1-1185 competitive exclusion principle bactérie nitrifiante phylotype nitrifying bacteria nitrite mathematical model |
| Zdroj: | Processes Processes, MDPI, 2016, 4 (51), pp.1-17. ⟨10.3390/pr4040051⟩ Processes, Vol 4, Iss 4, p 51 (2016) |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr4040051⟩ |
| Popis: | In a previous study, the two nitrifying functions (ammonia oxidizing bacteria (AOB) or nitrite-oxidizing bacteria (NOB)) of a nitrification reactor—operated continuously over 525 days with varying inputs—were assigned using a mathematical modeling approach together with the monitoring of bacterial phylotypes. Based on these theoretical identifications, we develop here a chemostat model that does not explicitly include only the resources’ dynamics (different forms of soluble nitrogen) but also explicitly takes into account microbial inter- and intra-species interactions for the four dominant phylotypes detected in the chemostat. A comparison of the models obtained with and without interactions has shown that such interactions permit the coexistence of two competing ammonium-oxidizing bacteria and two competing nitrite-oxidizing bacteria in competition for ammonium and nitrite, respectively. These interactions are analyzed and discussed. |
| Databáze: | OpenAIRE |
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