Spirogyra living in running water is anchored to the substratum by rhizoids that form at the ends of the filaments. A new terminal cell differentiates into a rhizoid cell if the filament is injured. The mode of growth changes from diffuse to tip growth when rhizoid differentiation begins. In this study, we found that a callosic substance was synthesized during rhizoid differentiation. Decreasin...

LAURA SBARCEA1*, LUCRETIA UDRESCU2, LIANA DRAGAN1, CRISTINA TRANDAFIRESCU1, MARIUS BOJITA3 1 Victor Babeo” University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, 2 Eftimie Murgu Square, 300041, Timiooara, Romania 2 Victor Babeo” University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Drug Analysis , 2 Eftimie Murgu Square, 300041, Timio...

Spirogyra nucleoli were shown by three-dimensional optical microscopy of DAPI fluorescence to contain DNA with a pattern and distribution matching those of the fibrillar centres. This was confirmed using different species with nucleoli showing different sizes of fibrillar centre. Much lower levels of fluorescence were seen corresponding to the dense fibrillar component. Nearly all the DAPI fluo...

Abstract This work addresses the evaluation in vitro of different marine ( Dunaliella salina REC-0214B and Microchloropsis gaditana REC-0251B) freshwater Anabaena sp. BEA-0300B, Arthrospira platensis BEA-0007B, Chlorella vulgaris BEA-0753B, Spirogyra BEA-0666B) microalgae cyanobacteria as potential dietary ingredients aquafeeds. For this purpose, total protein content, amino acid composition, p...