P. A. del Giorgio

TL;DR: Fluorescence measurements offer insight into the biogeochemical cycling of a large proportion of the DOM pool, including a broad suite of unseen molecules that apparently follow the same gradients as FDOM in the environment.

TL;DR: It is suggested that rare marine bacterial groups may be more susceptible to viral-induced mortality, and that these rare groups may actually be the winners of competition for resources, in an extreme and yet undocumented case of this paradigm.

TL;DR: It is concluded that temperature is the dominant factor regulating seasonality of BR and BCC in this system, whereas BP and BGE are influenced by both temperature and organic matter quality, with variation in the relative importance of each of these factors throughout the year.

TL;DR: Results suggest that the intrinsic DOM characteristics play an important role in regulating bacterial metabolism in aquatic ecosystems, once the results from bioassays are standardized for time and temperature.

TL;DR: In this article, the authors explored the patterns in the concentrations and proportions of BDOC and PDOC across hundreds of boreal lakes, rivers and wetlands spanning a large range of system trophic status and terrestrial influence, and compared the drivers of these two reactive pools of DOC at the landscape level.