First report of microcystin-LR in the cyanobacterium Gloeotrichia echinulata.

Gloeotrichia echinulata blooms in an oligotrophic lake: helpful insights from eutrophic lakes

Nuisance algal blooms are widely reported from eutrophic and hypereutrophic systems, but are relatively rare in oligotrophic systems. Recently, the cyanobacterium Gloeotrichia echinulata has begun blooming in oligotrophic to mesotrophic lakes in the northeastern USA. We explored whether existing knowledge about G. echinulata, derived from eutrophic systems, would be useful in predicting the rec...

Trophic state mediates the effects of a large colonial cyanobacterium on phytoplankton dynamics

Although cyanobacterial blooms are typically found in eutrophic lakes, where they are able to exert inhibitory effects on other plankton, they are also reported from oligotrophic and mesotrophic lakes. Here, we explored whether trophic state mediates the effects of Gloeotrichia echinulata blooms in freshwater ecosystems. This taxon is a large, colonial cyanobacterium that may be increasing in l...

Experimental blooms of the cyanobacterium Gloeotrichia echinulata increase phytoplankton biomass, richness and diversity in an oligotrophic lake

CAYELAN C. CAREY1*, KATHRYN L. COTTINGHAM2, KATHLEEN C. WEATHERS3, JENNIFER A. BRENTRUP2, NATALIE M. RUPPERTSBERGER2,4, HOLLYA. EWING5 AND NELSON G. HAIRSTON, JR1 1 DEPARTMENT OF ECOLOGY AND EVOLUTIONARY BIOLOGY, CORNELL UNIVERSITY, ITHACA, NY 14850, USA, DEPARTMENT OF BIOLOGICAL SCIENCES, DARTMOUTH COLLEGE, HANOVER, NH 03755, USA, CARY INSTITUTE OF ECOSYSTEM STUDIES, MILLBROOK, NY 12545, USA, ...

اولین گزارش حضور سیانوباکتر Gloeotrichia echinulata در حوضه جنوبی دریای خزر

Microcystin-LR: Effects on Freshwater Catfish Heteropneustes fossilis Prolactin Cells

Background: Previous studies have been reported on the toxicity of Microcystin-LR, which is produced by cyanobacterial growth in fish, such as Heteropneustes fossilis (H. fossilis). However, no studies have been conducted on the effects of Microcystin-LR on the prolactin cells of H. fossilis. Methods: H. fossilis fish were intraperitoneally injected with Microcystin-LR (2.5μg/25g) and sacrif...