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Quorum sensing control of phosphorus acquisition in Trichodesmium consortia.

Composition and fate of gas and oil released to the water column during the Deepwater Horizon spill.

Rapid microbial respiration of Deepwater Horizon oil in surface waters of the Gulf of Mexico

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Bacterial and eukaryotic intact polar lipids in the eastern subtropical South Pacific: water-column distribution, planktonic sources, and fatty acid composition.

Abundance and diversity of heterotrophic bacterial cells assimilating 33P-phosphate in the subtropical North Atlantic Ocean

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Kinetic constraints on acylated homoserine lactone-based quorum sensing in marine environments

Phytoplankton in the ocean substitute lipids in response to phosphorus scarcity

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Assessing nutrient limitation of Prochlorococcus in the North Pacific subtropical gyre by using an RNA capture method

Phospholipid synthesis rates in the eastern subtropical South Pacific Ocean

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Primary, new and export production in the NW Pacific Subarctic Gyre during the VERTIGO K2 experiments

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Phosphate availability: ultimate control of new nitrogen input by nitrogen fixation in the tropical Pacific Ocean

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Quantifying 3H-thymidine incorporation rates by a phylogenetically defined group of marine planktonic bacteria (Bacteriodetes phylum).

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Seasonal variation in sedimentary amino acids and the association of organic matter with mineral surfaces in a sandy eelgrass meadow

Evidence of tight coupling between bacteria and particulate organic carbon during seasonal stratification of Lake Michigan.

Microbiological, molecular biological and stable isotope evidence for nitrogen fixation in the open waters of Lake Michigan

General Interest Articles

Evidence of tight coupling between bacteria and particulate organic carbon during seasonal stratification of Lake Michigan.

Van Mooy, B., MacGregor, B., Hollander, D., Nealson, K., and Stahl, D.

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» Evidence for tight coupling between active bacteria and particulate organic carbon during seasonal stratification of Lake Michigan

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» Full text of article can be found here.

Limnol. Oceanogr. 46:1202-1208. (2001)

Abstract
Suspended particulate organic matter (POM) plays a critical role in the planktonic ecology of Lake Michigan during seasonal thermal stratification. We show, based on stable isotope and ribosomal RNA (rRNA) data, that the relationship between suspended POM and active biomass changes as thermal stratification persists. Stable isotope data indicated that sources of suspended POM change between July and October, moving from primary production at a deep chlorophyll layer to recycling-based production in surface waters. Concomitant change in the distribution of active bacterial and eukaryotic biomass was observed as indicated by rRNA abundances. Active bacterial and eukaryotic biomass were highly correlated throughout the year. However, the correlation between suspended POM and active bacterial biomass varied seasonally and reflected the transitions in planktonic ecology. Suspended POM from depths >60 m was primarily of sedimentary origin. The combined application of stable isotope and rRNA analysis of suspended POM indicated a dynamic relationship between the bulk POM reservoir and living planktonic biomass.

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