BACKGROUND Renewable energy for sustainable development is a subject of a worldwide debate since continuous utilization of non-renewable energy sources has a drastic impact on the environment and economy; a search for alternative energy resources is indispensable. Microalgae are promising and potential alternate energy resources for biodiesel production. Thus, our efforts were focused on survey...

The complex chemical speciation of Fe in aquatic systems and the uncertainties associated with biological assimilation of Fe species make it difficult to assess the bioavailability of Fe to phytoplankton in relation to total dissolved Fe concentrations in natural waters. We developed a cyanobacterial Fe-responsive bioreporter constructed in Synechococcus sp. strain PCC 7942 by fusing the Fe-res...

Nostoc flagelliforme is a terrestrial edible cyanobacterium that grows in arid and semi-arid steppes. The continued over-exploitation in the last century has led to a sharp decline of this resource and a severe deterioration of the steppe ecology. Liquid-cultured N. flagelliforme serves as promising algal 'seeds' for resource restoration. In this study, macroscopic (or visible) aquatic-living c...

Microcystis is a flagrant cyanobacterial genus forming heavy blooms in aquatic environments and often cause serious problems in the management of water quality. In Japan, Micorcystis aeruginosa and Microcytis wesenbergii are commonly found in natural eutrophic water bodies. Although they frequently occur in the same habitat, the mechanisms determining the dominance of the two Microcystis specie...

Changes in nutrient concentrations can be caused by anthropogenic activities coastal and marine waters. This affects the abundance of phytoplankton. The waters experiencing it are Kassikebo Pangkep, South Sulawesi, Indonesia. For this reason, research has been carried out to analyze structure phytoplankton communities these waters, from January July 2022. To identify phytoplankton, 100 L seawat...

The present study was to understand the diversity and distribution pattern of microalgae in fresh water system represented by an open artificial pond. A total 100 species phytoplanktons were indentified from different groups Chandrasarovar pond Jhalawar, Rajasthan. Among identified phytoplankton Cyanophyceae (39%) formed dominant group, followed Chlorophyceae (34%) Bacillariophyceae (23%) Eugle...

Anacystis nidulans cells grown under high (3%) CO(2) partial pressure have greater phycocyanin to chlorophyll ratio (Phc/Chl) relative to cells grown under low (0.2%) CO(2) tension (Eley (1971) Plant Cell Physiol 12: 311-316). Absorbance difference spectrophotometry of A. nidulans thylakoid membranes in the ultraviolet (DeltaA(320)) and red (DeltaA(700)) regions of the spectrum reveal photosyst...