Martin J. Whitehouse

Apr 23, 2024 | enviromicro-journals.onlinelibrary.wiley.com | Rickard Stenow |Elizabeth Robertson |Olga Kourtchenko |Martin J. Whitehouse

INTRODUCTION Marine phytoplankton contribute to roughly 50% of global primary production and contribute significantly to global carbon (C) and nitrogen (N) cycling (Armbrust, 2009; Nelson et al., 1995). Many classes of phytoplankton are known to form resting stages which sink to the underlying sediment during temporarily adverse growth conditions in the euphotic zone (Ellegaard & Ribeiro, 2018; Rynearson et al., 2013).

Jan 14, 2024 | nature.com | Thomas Barrett |Mahesh Anand |Martin J. Whitehouse |Xuchao Zhao |Tara S. Hayden

AbstractDetermination of the systematics of volatile elements (for example, H, Cl, S) of the early Moon is one of the main objectives of lunar science. This has been hindered by the lack of the main volatile-bearing mineral, apatite, in ferroan anorthosites (FANs), which are thought to represent the primary products of the lunar magma ocean and the earliest lunar crust.

Sep 18, 2023 | nature.com | Elizabeth Robertson |Martin J. Whitehouse |Rickard Stenow

AbstractColony formation in phytoplankton is often considered a disadvantage during nutrient limitation in aquatic systems. Using stable isotopic tracers combined with secondary ion mass spectrometry (SIMS), we unravel cell-specific activities of a chain-forming diatom and interactions with attached bacteria. The uptake of 13C-bicarbonate and15N-nitrate or 15N-ammonium was studied in Chaetoceros affinis during the stationary growth phase.