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Title (Primary) Different recovery processes of soil ammonia oxidizers from flooding disturbance
Author Ye, F.; Ma, M.-H.; Op den Camp, H.J.M.; Chatzinotas, A.; Li, L.; Lv, M.-Q.; Wu, S.-J.; Wang, Y.;
Journal Microbial Ecology
Year 2018
Department UMB; iDiv;
Volume 76
Issue 4
Language englisch;
POF III (all) T32;
Supplements https://static-content.springer.com/esm/art%3A10.1007%2Fs00248-018-1183-3/MediaObjects/248_2018_1183_MOESM1_ESM.doc
Keywords Archaea; Ammonia-oxidizing communities; Response; Resistance; Resilience; Riparian zone
Abstract Understanding how microorganisms respond to environmental disturbance is one of the key focuses in microbial ecology. Ammonia-oxidizing bacteria (AOB) and archaea (AOA) are responsible for ammonia oxidation which is a crucial step in the nitrogen cycle. Although the physiology, distribution, and activity of AOA and AOB in soil have been extensively investigated, their recovery from a natural disturbance remains largely unknown. To assess the recovery capacities, including resistance and resilience, of AOA and AOB, soil samples were taken from a reservoir riparian zone which experienced periodically water flooding. The samples were classified into three groups (flooding, recovery, and control) for a high-throughput sequencing and quantitative PCR analysis. We used a relative quantitative index of both the resistance (RS) and resilience (RL) to assess the variation of gene abundance, alpha-diversity, and community composition. The AOA generally demonstrated a better recovery capability after the flooding disturbance compared to AOB. In particular, AOA were more resilient after the flooding disturbance. Taxa within the AOA and AOB showed different RS and RL values, with the most abundant taxa showing in general the highest RS indices. Soil NH4+ and Fe2+/Fe3+ were the main variables controlling the key taxa of AOA and AOB and probably influenced the resistance and resilience properties of AOA and AOB communities. The distinct mechanisms of AOA and AOB in maintaining community stability against the flooding disturbance might be linked to the different life-history strategies: the AOA community was more likely to represent r-strategists in contrast to the AOB community following a K-life strategy. Our results indicated that the AOA may play a vital role in ammonia oxidation in a fluctuating habitat and contribute to the stability of riparian ecosystem.
ID 21075
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=21075
Ye, F., Ma, M.-H., Op den Camp, H.J.M., Chatzinotas, A., Li, L., Lv, M.-Q., Wu, S.-J., Wang, Y. (2018):
Different recovery processes of soil ammonia oxidizers from flooding disturbance
Microb. Ecol. 76 (4), 1041 - 1052