Resolving fungal and bacterial groups within the microbial decomposer community is thought to capture disparate life strategies for soil microbial decomposers, associating bacteria with an r-selected strategy for carbon (C) and nutrient use, and fungi with a K-selected strategy. Additionally, food-web model-based work has established a widely held belief that the bacterial decomposer pathway in...

Dissolved organic matter (DOM) is a complex mixture of carbon-containing compounds. The low-molecular weight (LMW) fraction constitutes thousands different compounds and represents substantial proportion DOM in aquatic ecosystems. turnover rates this LMW can be extremely high. Due to the challenges measuring pool at molecular scale, comparatively little known fate lotic systems. This study addr...

The major pathways of transformation of particulate organic matter by heterotrophic bacteria are respiration and production of new biomass. Until today only a limited number of studies have measured simultaneously respiration and production by aggregate-associated bacteria. To study their role in the carbon cycle of aquatic systems we have formed model particles from diatoms (Skeletonema costat...

Soil density fractionation is a common tool to separate organic matter of different function and turnover. But it has not been tested so far how much soil material necessary obtain reproducible results. A reduction chemicals like polytungstate would further save valuable resources. Here, we show that weight from 25 5 g was significantly affecting Compared the commonly used 10–25 g, this corresp...