Photosynthetic microalgae can capture solar energy and convert it to bioenergy and
biochemical products. In nature or industrial processes, microalgae live together with …

Nitrogen fixing symbioses between plants and bacteria are ancient and, while not
numerous, are formed in diverse lineages of plants ranging from microalgae to …

Cyanobacteria are photosynthetic prokaryotic organisms which represent a significant
source of novel, bioactive, secondary metabolites, and they are also considered an …

Cyanobacteria are the Earth's oldest (∼ 3.5 bya) oxygen evolving organisms, and they have
had major impacts on shaping our modern-day biosphere. Conversely, biospheric …

Discrepancies between estimates of oceanic N 2 fixation and nitrogen (N) losses through
denitrification have focused research on identifying N 2-fixing cyanobacteria and quantifying …

The marine nitrogen (N) cycle controls the productivity of the oceans. This cycle is driven by
complex biogeochemical transformations, including nitrogen fixation, denitrification, and …

In the frame of the BIOSOPE cruise in 2004, the spatial distribution and structure of
phytoplankton pigments was investigated along a transect crossing the ultra-oligotrophic …

Background Nitrogen, a component of many bio-molecules, is essential for growth and
development of all organisms. Most nitrogen exists in the atmosphere, and utilisation of this …

Over the last 30 years, immense progress has been made in understanding the global
significance of marine nitrogen (N~ 2~) fixation. Development of enzymological, isotopic and …

About 40 years have passed since the discovery of picophytoplankton; the present
knowledge of the taxonomy physiology and ecology of these tiny photoautotrophic cells …