Stressor-induced ecdysis and thecate cyst formation in the armoured dinoflagellates Prorocentrum cordatum.

ABSTRACT: Ecdysis, the process of extensive cell covering rearrangement, represents a remarkable physiological trait of dinoflagellates. It is involved in the regulation of the population and bloom dynamics of these microorganisms, since it is required for the formation of their thin-walled cysts. This study presents laboratory data on ecdysis in Prorocentrum cordatum, a harmful dinoflagellate species of high environmental significance. We studied external stressors triggering this process and changes in the cell ultrastructure accompanying it. Our experiments showed that mass ecdysis and formation of cysts in P. cordatum could be induced by centrifugation, temperature decrease, changes in salinity, and treatment by 2,6-dichlorobenzonitrile, whereas temperature increase, changes in pH and treatment

SUBMITTER: Matantseva O 

PROVIDER: S-EPMC7591879 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature