Impact of algicidal fungus Aspergillus welwitschiae GF6 on harmful bloom-forming cyanobacterium Microcystis aeruginosa: Growth and physiological responses.

Harmful cyanobacterial blooms (HCB) have become a common issue in freshwater worldwide. Biological methods for controlling HCB are relatively cost effective and environmentally friendly. The strain of ascomycete GF6 was isolated from a water sample collected from the estuarine zone of the eastern part of the Gulf of Finland.

Toxigenic Cyanobacteria and Microcystins in a Large Northern Oligotrophic Lake Onego, Russia.

Toxigenic cyanobacteria and microcystins in the oligotrophic pelagic zone and mesotrophic bay of Lake Onego-the second largest lake in Europe-were found for the first time. Microscopic analysis revealed that and dominated in bloom spots in the oligotrophic zone of the lake and and OKin the eutrophic bay. The abundance of cyanobacteria in bloom spots is potentially hazardous for humans and animals.

[MONITORING OF SCIENTIFIC RESEARCH IN THE MOSCOW HEALTHCARE SYSTEM].

Monitoring of scientific activity is a process of systematic tracking, analysis and evaluation of the activity and results of scientific research, to identify new directions and trends in research, as well as to assess the growth, level of activity and significance of scientific activity in a particular field of knowledge. This paper summarizes and analyzes statistical data for 2023 on publication and patent activity, personnel, directions and topics of research work of participants in the Scientific Program of the Moscow Healthcare Department for 2023-2025, the functions of which are coordinated by the Research Institute for Healthcare Organization and Medical Management of Moscow Healthcare Department.

Algicidal Activity and Microcystin-LR Destruction by a Novel Strain sp. GF3 Isolated from the Gulf of Finland (Baltic Sea).

The present article focuses on a strain of ascomycete GF3 isolated from a water sample taken in the Gulf of Finland. Based on phylogenetic analysis data, the isolate was identified as sp. GF3.

Effects of Algicidal Macrophyte Metabolites on Cyanobacteria, Microcystins, Other Plankton, and Fish in Microcosms.

To control harmful algae blooms (HABs), methods based on natural mechanisms are now required. We investigated the effects of an algicide derived from macrophyte metabolites, namely mixtures of gallic, tetradecanoic, heptanoic, and octanoic acids (1:1:1:1 mass ratio, a total concentration of 14 mg/L), on the biomass of cyanobacteria and other plankton and the production of microcystins under experimental conditions. Two types of microcosms have been created: simple (microalgae, cyanobacteria, and zooplankton) and complex (microalgae, cyanobacteria, zooplankton, and planktivorous fish).