COSEE Ocean Systems: News
Temperature and UV light affect the activity of marine cell-free enzymes
Description: Microbial extracellular enzymatic activity (EEA) is the rate-limiting step in the degradation of organic matter in the oceans. These extracellular enzymes exist in two forms: cell-bound, which are attached to the microbial cell wall, and cell-free, which are completely free of the cell. Contrary to previous understanding, cell-free extracellular enzymes make up a substantial proportion of the total marine EEA. Little is known about these abundant cell-free enzymes, including what factors control their activity once they are away from their sites (cells). Experiments were run to assess how cell-free enzymes (excluding microbes) respond to ultraviolet radiation (UVR) and temperature manipulations, previously suggested as potential control factors for these enzymes. [Source: Biogeosciences]
URL: https://www.biogeosciences.net/14/3971/2017/
Availability: Full Text
Source: Biogeosciences
Publish Date: 9/13/2017
Reading Level: Expert
Page Length:  

<< BACK