Francisco J. Acosta, David Kamanda Ngugi, Ulrich Stingl
AbstractBackgroundPicoeukaryotes are protists ≤ 3 μm composed of a wide diversity of taxonomic groups. They are an important constituent of the ocean’s microbiota and perform essential ecological roles in marine nutrient and carbon cycles. Despite their importance, the true extent of their dive...... hiện toàn bộ
Matthew Fuszard, Phillip C. Wright, Catherine A. Biggs
AbstractBackgroundThe well-lit surface waters of oligotrophic gyres significantly contribute to global primary production. Marine cyanobacteria of the genus Prochlorococcus are a major fraction of photosynthetic organisms within these areas. Labile phosphate is consid...... hiện toàn bộ
Matthew A Fuszard, Saw Yen Ow, Chee Sian Gan, Josseilin Noirel, Nigel G Ternan, Geoff McMullan, Catherine A Biggs, Kenneth F Reardon, Phillip C Wright
Inorganic phosphate (Pi) is a critical nutrient for all life and is periodically limiting in marine and freshwater provinces, yet little is understood how organisms acclimate to fluctuations in Pi within their environment. To investigate whole cell adaptation, we grew Synechocystis sp. PCC6803, a model freshwater cyanobacterium, in 3%, and 0.3% inorganic phosphate (Pi) media. The cells were allowe...... hiện toàn bộ
Pearse McCarron, Alan C Logan, Sabrina D Giddings, Michael A Quilliam
Over the last decade the amino acid beta-N-methylamino-L-alanine (BMAA) has come under intense scrutiny. International laboratory and epidemiological research continues to support the hypothesis that environmental exposure to BMAA (e.g., through dietary practices, water supply) can promote the risk of various neurodegenerative diseases. A wide variety of cyanobacteria spp. have previously been rep...... hiện toàn bộ
Henk Bolhuis, Henriette Schluepmann, Juri Kristalijn, Zohrah Sulaiman, David J Marshall
The Brunei River and Bay estuarine system (BES) in the northwest of Borneo is acidic and highly turbid. The system supports extensive intertidal mudflats and presents a potentially steep salinity and pH gradient along its length (45 km). Temporal variation in physical parameters is observed diurnally due to seawater flux during tidal forcing, and stochastically due to elevated freshwater inflow af...... hiện toàn bộ