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IN SEARCH OF A PHYSIOLOGICAL BASIS FOR COVARIATIONS IN LIGHT‐LIMITED AND LIGHT‐SATURATED PHOTOSYNTHESIS 1
TLDR
It is suggested that as growth rates decrease, reductants are increasingly used for simple ATP generation through a fast (<1s) respiratory pathway that skips the carbon reduction cycle altogether and is undetected by standard PE methodologies. Expand
Relating phytoplankton photophysiological properties to community structure on large scales
TLDR
A general empirical model is presented that describes the dependence of algal photophysiology on both the community composition and the relative irradiance within the water column and it is anticipated that such photophysiological parameterizations can improve primary production models by providing estimates of primary production that are specific to different phytoplankton classes on large scale. Expand
Nutrient limitation of primary productivity in the Southeast Pacific (BIOSOPE cruise)
TLDR
Primary productivity are only limited by iron availability at the border of the gyre, but not in the center, and the South Pacific gyre is therefore unique with respect to the physiological status of its phytoplankton populations. Expand
Diel variations in Prochlorococcus optical properties
TLDR
The optical and biochemical properties of an axenic clone of Prochlorococcus, PCC 9511, grown in a turbidostat set under light conditions that simulated those found near the ocean surface, were monitored every 2 h for several consecutive days. Expand
Diel variations in the photosynthetic parameters of Prochlorococcus strain PCC 9511: Combined effects of light and cell cycle
TLDR
The results suggest that the pattern of diel variations in the photosynthetic parameters is determined both by photoacclimation and the cell-division cycle. Expand
Diel Expression of Cell Cycle-Related Genes in Synchronized Cultures of Prochlorococcus sp. Strain PCC 9511
TLDR
The transcript accumulation of genes involved in replication and division is coordinated in Prochlorococcus sp. Expand
The impact of light pollution on diel changes in the photophysiology of Microcystis aeruginosa
Assessing the effect of light pollution, Microcystis aeruginosa was grown with and without low levels of night lighting. Significant differences were observed between the treatments in the maximumExpand
Distribution of microbial biomass, production, respiration, dissolved organic carbon and factors controlling bacterial production across a geostrophic front (Almeria-Oran, SW Mediterranean Sea)
TLDR
Factors limiting bacterial growth and activities in regard to dissolved organic carbon stocks and lability in different parts of the Almeria-Oran front-jet system were explored, indicating that there was a greater dependence on polymeric DOC. Expand
Does chlorophyll a provide the best index of phytoplankton biomass for primary productivity studies
Probably because it is a readily available ocean color product, almost all models of primary productivity use chlorophyll as their index of phytoplankton biomass. As other variables become moreExpand
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