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A comprehensive insight into functional profiles of free-living microbial community responses to a toxic Akashiwo sanguinea bloom
Yang, C.; Li, Y.; Zhou, Y.; Lei, X.; Zheng, W.; Tian, Y.; Van Nostrand, J.D.; He, Z.; Wu, L.; Zhou, J.; Zheng, T. (2016). A comprehensive insight into functional profiles of free-living microbial community responses to a toxic Akashiwo sanguinea bloom. NPG Scientific Reports 6(34645): 10 pp. http://hdl.handle.net/10.1038/srep34645
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, more
Peer reviewed article  

Available in  Authors 

Keywords
    Akashiwo sanguinea (K.Hirasaka) Gert Hansen & Moestrup, 2000 [WoRMS]
    Marine

Authors  Top 
  • Yang, C.
  • Li, Y.
  • Zhou, Y.
  • Lei, X.
  • Zheng, W.
  • Tian, Y.
  • Van Nostrand, J.D.
  • He, Z.
  • Wu, L.
  • Zhou, J.
  • Zheng, T.

Abstract
    Phytoplankton blooms are a worldwide problem and can greatly affect ecological processes in aquatic systems, but its impacts on the functional potential of microbial communities are limited. In this study, a high-throughput microarray-based technology (GeoChip) was used to profile the functional potential of free-living microbes from the Xiamen Sea Area in response to a 2011 Akashiwo sanguinea bloom. The bloom altered the overall community functional structure. Genes that were significantly (p < 0.05) increased during the bloom included carbon degradation genes and genes involved in nitrogen (N) and/or phosphorus (P) limitation stress. Such significantly changed genes were well explained by chosen environmental factors (COD, nitrite-N, nitrate-N, dissolved inorganic phosphorus, chlorophyll-a and algal density). Overall results suggested that this bloom might enhance the microbial converting of nitrate to N-2 and ammonia nitrogen, decrease P removal from seawater, activate the glyoxylate cycle, and reduce infection activity of bacteriophage. This study presents new information on the relationship of algae to other microbes in aquatic systems, and provides new insights into our understanding of ecological impacts of phytoplankton blooms.

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