New Insights into Microbial Degradation of Cyanobacterial Organic Matter Using a Fractionation Procedure.

ABSTRACT: Cyanobacterial blooms caused by phytoplankton Microcystis have occurred successively since 1980 in Lake Taihu, China, which has led to difficulty collecting clean drinking water. The effects of cyanobacterial scum-derived dissolved organic matter (DOM) on microbial population variations and of algal-derived filtrate and algal residual exudative organic matter caused by the fraction procedure on nutrient mineralization are unclear. This study revealed the microbial-regulated transformation of DOM from a high-molecular-weight labile to a low-molecular-weight recalcitrant, which was characterized by three obvious stages. The bioavailability of DOM derived from cyanobacterial scum by lake microbes was investigated during 80-d dark degradation. Carbon substrates provided distinct growth

SUBMITTER: Chen J 

PROVIDER: S-EPMC9222324 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature