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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Bacteria dominate ammonia oxidation in soils used for outdoor cattle overwintering.
Appl. Soil Ecol. 77, 68-71 (2014)
In areas used for cattle overwintering detrimental effects normally associated with grazing are intensified. Among the alterations observed, increases on the N availability and soil pH may highly influence structure of ammonia oxidizing microbes and thus influence nitrification pattern in soil. To evaluate this assumption, we assessed the abundance and diversity of ammonia oxidizing bacteria (AOB) and archaea (AOA) in three sites with different degrees of animal impact (severe, moderate or no impact) of an overwintering pasture by means of qPCR and T-RFLP of amoA genes. In areas where no animal impact could be identified AOA was dominating over AOB. However, AOB abundance increased as the degree of animal impact enhances, becoming most dominant in the severely impacted site. Interestingly, the diversity of AOB was the highest in the severely impacted area, where AOA diversity was the lowest. Obviously the pressure imposed by altered environmental conditions created by cattle husbandry lead to the selection of AOB and AOA populations, adapted to alkaline pH and higher ammonia concentration.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Ammonia Oxidation ; Bacteria ; Archaea ; Amoa Diversity ; Urea ; Pasture; Nitrous-oxide Emissions; Grassland Soils; Niche Specialization; Oxidizing Archaea; Husbandry; Compaction; Kinetics; Area
ISSN (print) / ISBN
0929-1393
e-ISSN
1873-0272
Zeitschrift
Applied Soil Ecology
Quellenangaben
Band: 77,
Seiten: 68-71
Verlag
Elsevier
Verlagsort
Amsterdam
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed