The levels of free, conjugated and bound polyamines (PA) were analyzed during the cell cycle of the synchronized unicellular green alga Scenedesmus obliquus. The polyamines putrescine (PUT) and spermidine (SPD) in their free and conjugated forms accumulated per cell to a maximum in the cell cycle at about the 16th hour after onset of illumination. The polyamines bound to macromolecules and memb...

Nano-Al₂O₃ has been widely used in various industries; unfortunately, it can be released into the aquatic environment. Although nano-Al₂O₃ is believed to be of low toxicity, it can interact with other pollutants in water, such as heavy metals. However, the interactions between nano-Al₂O₃ and heavy metals as well as the effect of nano-Al₂O₃ on the toxicity of the metals have been rarely investig...

Hydrogen evolution is observed in the green alga Scenedesmus obliquus after a phase of anaerobic adaptation. In this study we report the biochemical and genetical characterization of a new type of iron hydrogenase (HydA) in this photosynthetic organism. The monomeric enzyme has a molecular mass of 44.5 kDa. The complete hydA cDNA of 2609 base pairs comprises an open reading frame encoding a pol...

The relative differentiation of the protein content in green algae grown contours Dengizkul reservoir was due to fact that level mineralization water low at entrances(mouth) lake and high remote from it. Therefore, when growing with a Сhlorella vulgaris Beijer. Scenedesmus obliquus (Turp.) Kütz., most optimal nutrient medium is variant which juice poultry manure mixed 1,2,3 g / l water. recomme...

The nucleotide sequence of the cytoplasmic 5S ribosomal RNA from Scenedesmusobliquus has been determined using post-labelling techniques. The sequence is closely related to the 5S RNA sequence of Chlorella and contains all the areas of invariant sequence which appear to be conserved in plant cytoplasmic 5S RNA species.

Se evaluó la capacidad de biofijación dióxido carbono (CO2) por las especies Chlorella vulgaris y Scenedesmus obliquus cultivadas en fotobiorreactores un fotoperiodo 12:12 h. empleó diseño experimental completamente al azar cuyas fuentes variación fueron: especie microalgal dosificación CO2 (0,36; 11,44 22,62 g.d-1). Los fueron unidades plásticas con 3,8 L medio cultivo (solución NPK + micronut...