| vegetative survival, akinete formation and germination in three blue-green algae and one green alga in relation to light intensity, temperature, heat shock and uv exposure. | the mere vegetative survival was not sufficient but suitable growth conditions were required for akinete formation to occur in the blue-green algae anabaena iyengarii, westiellopsis prolifica, nostochopsis lobatus and in the green alga pithophora oedogonia. in all algae, akinetes were neither formed nor germinated in darkness, and while dim light of 300 lx was sufficient for most of akinetes to germinate and also to maintain vegetative survival, it was not adequate for optimum akinete formation. ... | 2000 | 11347271 |
| vegetative survival, akinete and zoosporangium formation and germination in some selected algae as affected by nutrients, ph, metals, and pesticides. | lack of nitrogen, phosphorus, or all nutrients, extremes of ph (< 4, > 11), presence of 'heavy' metals (co, cu, zn, hg, pb; 0.5-10 ppm) or pesticides (carbofuran, 2,4-d, dithane, phorate, or bavistin; 1-50 ppm) decreased to various extent or completely inhibited the survival or vegetative cells in all studied algae. the formation of akinetes, their viability and germination in anabaena iyengarii, westiellopsis prolifica, nostochopsis lobatus and pithophora oedogonia and the formation of zoospora ... | 2002 | 12503399 |
| enhanced production of biomass, pigments and antioxidant capacity of a nutritionally important cyanobacterium nostochopsis lobatus. | a diazotrophic cyanobacterium nostochopsis lobatus was evaluated for enhanced production of biomass, pigments and antioxidant capacity. n. lobatus showed potentially high antioxidant capacity (46.12 microm aeac) with significant improvement under immobilized cell cultures (87.05 microm aeac). when a mixture of p and fe was supplemented, biomass, pigments, nutritive value and antioxidant capacity increased substantially at ph 7.8. when considered separately, p appeared to be a better supplement t ... | 2008 | 17919902 |
| enhanced production of high-quality biomass, delta-aminolevulinic acid, bilipigments, and antioxidant capacity of a food alga nostochopsis lobatus. | the growing interest in natural food has raised the global demand for nutraceuticals. we studied enhanced production of biomass, delta-aminolevulinic acid (delta-ala), bili pigments and antioxidant capacity of a food alga nostochopsis lobatus in a full-factorial (three level) design with supplemental zn, glutamine, and zn + glutamine in batch culture. production of biomass, pigments, and antioxidant capacity all were higher under immobilized cell cultures in comparison to free cell cultures. max ... | 2008 | 18340410 |