The role of the seagrass leaf microbiome in assisting nitrogen uptake by the Western Australian seagrass, Posidonia sinuosa

Provided by   Edith Cowan University

Research Project

Researchers: Annette Koenders (Associated with) ,  Bonnie Laverock (Associated with) ,  Christin Säwström (Associated with) ,  Edith Cowan University (Managed by) ,  Edith Cowan University (Managed by) , 
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Full description

Microorganisms play a key role in facilitating the cycling of several elements in coastal environments, including nitrogen (N). N is a key component for maintaining high seagrass productivity and is often the limiting nutrient in marine environments. Seagrasses harbour an abundant and diverse microbial community (the ‘microbiome’), however their ecological and functional roles related to the seagrass host are still poorly understood, in particular regarding N cycling. Microorganisms capable of mineralising dissolved organic nitrogen (DON) may play a pivotal role in enhancing N availability in coastal environments such as seagrass meadows. Thus, the overall aim of the project was to enhance current understanding of abundance and diversity of the microbial community associated with seagrass meadows and their ecological role, with specific focus on N cycling. This was achieved by using molecular techniques together with 15N-enrichment experiments and nanoscale imaging techniques.

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Contact Information

Flavia Tarquinio:, Glenn A. Hyndes: g.hyndes