Arevik Minasyan

• PhD
• Fellow at Auburn University

This paper presents the first report of cyanobacteria and cyanotoxins from the South Caucasus region, in particular from Lake Yerevan (Armenia). Microcystis, Dolichospermum, and Planktothrix were the key genera identified during the growing season. A trend of a remarkable increase in cyanobacterial densities was observed from 2012 to 2013 exhibitin...

In this work the effect of 4Hz 30dB horizontal mechanical vibration (MV) on thermal pain threshold, hydration and [3H]-ouabain binding in brain and heart muscle tissues of rats was studied. It was revealed that 4Hz MV treatment for 10 minutes increased pain threshold, which was accompanied by brain and heart muscle tissue dehydration. In vitro stat...

Phytoplankton in Lake Yerevan includes about 140 species belonging to 9 genera. Diatoms were the lead contributors to the algal community species richness formation. The second subdominance shared greens and cyanobacteria (quantitative data on cyanobacteria are not presented in this paper). Euglenophyta and Dinophyta were the next, albeit with a le...

Pioneering records of extracellular enzymes activities (EEA) in Lake Sevan waters highlight dependence of heterotrophic functioning on physicochemical characteristics and bacterial assemblage. Values of EEA, ranged 0.11-30.39 μg C/P L-1 h-1 , were higher in upper layers compared to the omission in deeper parts. Particles associated (ecto-) enzymes...

Haematococcus pluvialis is a genus of green algae that keeps the high interest of the scientists for decades due to its capacity to synthesize astaxanthin. Among many others, astaxanthin is one of the most demanded natural anti-oxidant and the product of the future. It has the widest usage as source of nutrient rich food and health promoting compou...

This paper presents the data on the quantitative characteristics of microbial community structure (e.g. viruses and pioneering data of picocyanobacteria and heterotrophic nanoflagellates (hereinafter HNF) and their relationship in Lake Sevan waters. Picocyanobacteria in Lake Sevan waters were found being the significant contributors to total primar...

Strain AM-8B5(T), isolated from Lake Sevan in Armenia, was characterized phenotypically, chemotaxonomically and phylogenetically. This chemo-organoheterotrophic, aerobic, facultatively anaerobic, catalase- and oxidase-positive, non-motile strain grew on NSY medium at NaCl concentrations of 0.0-0.2 % (w/v) and at 4-30 °C. Whole-cell fatty acids were...