The Phytoplankton community and the abiotic factors of the Cruzeta reservoir were studied at three depths, surface, middle (2 m) and bottom, from September, 2004 to June, 2005, in order to characterize the environment and assess the possible factors that influence the compositional change of phytoplankton. Ninety species belonging to 6 classes (Chlorophyceae, Bacillariophyceae, Cyanophyceae, Di...

Nonspecific acid phosphatases are a group of enzymes whose activity increases the availability of exogenous and endogenous orthophosphate either through extra- or intracellular hydrolysis of phosphate compounds. Our study demonstrates the activity of acid phosphatases in the filamentous freshwater alga Stigeoclonium tenue. These enzymes were detected following a cerium-based method in which cer...

Steering their swimming direction toward the light is crucial for the viability of Volvox colonies, the larger members of the volvocine algae. While it is known that this phototactic steering is achieved by a difference in behavior of the flagella on the illuminated and shaded sides, conflicting reports suggest that this asymmetry arises either from a change in beating direction or a change in ...

The St. Mary’s Island, located in the state of Karnataka is endowed with enormous rocky habitats and support rich diversity marine macro algae (seaweeds). During years 2014-2017, several extensive field explorations were undertaken to this Island 52 taxa algae, comprising 16 Chlorophyceae, 19 Phaeophyceae 17 Rhodophyceae recorded. thorough scrutiny literature shows that first comprehensive re...

Abstract Given the extreme importance of understanding biodiversity in contemporary context, this study performed a taxonomic survey planktonic green algae from subtropical river Paraná state, broadening knowledge group’s geographic distribution and environmental conditions related to its occurrence. Monthly samplings phytoplanktonic material were carried out February 2015 January 2016, resulti...