Cyclotella cryptica

Karydis M. 1980 Uptake of hydrocarbons by the marine diatom Cyclotella cryptica. Microbiological Ecology 5 287-293. 

Amino acids Navicula pelliculosa a b Melosira nummuloides a b Melosira granulata a b Cyclotella stelligera a b Cyclotella cryptica a b Nitzschia brevirostris a b Siliceous sponge Tissue Spicule ... 

Fig. 47. Diatom cell walls after sonication and staining with phosphotunestic acid (a) Xavicula pelliculosa (b)Nitzschia brevirostris (c d) Cyclotella cryptica (llecky et a/.548 ). Around the circumference of the large pores, where there is no underlying silica, a hi-layer membrane can be recognized with grains showing an 80 A periodicity. For discussion of this periodicity see Ref.48 ...

HeUebust, J. A. (1978). Uptake of organic substrates by Cyclotella cryptica (BacUlariophyceae) Effects of ions, ionophores and metabolic and transport inhibitors. J. Phycol. 14, 79-83. 

OHveira, L., and Antia, N. J. (1986). Some observations on the urea degrading enzyme of the diatom Cyclotella cryptica and the role of nickel in its production. J. Plankton Res. 8, 235—242. 

Roessler, P.G. (1988) Effects of silicon deficiency on lipid-composition and metabolism in the diatom cyclotella-cryptica. /. Phycol, 24 (3), 394-400. 

M. (1991) The effects of nutrients and temperature on biomass, growth, lipid production, and fatty acid composition of Cyclotella cryptica Reimann, Lewin, and Guillard. Appl Biochem. Biotechnol, 28-29, 317-326. 

Acetyl-CoA carbo)q lase (ACCase), a rate-limiting enzyme, is known to catalyze the first committed step of fatty acid biosynthesis. Its overexpression is supposed to increase the lipid production. ACCase was successfully isolated from the diatom Cyclotella crypticd and then transformed into Cyclotella cryptica and Navicula saprophilaJ Nevertheless, the increase in lipid production was not observed. These results suggested that the ACCase alone might not be enough to regulate the whole pathway. 

Of the five species of marine diatoms (Cylindrotheca fusiformls, Nltzschia angularis. Nitzschia thefmalls, Cyclotella cryptica and Phaeodactylum tricornutum) and the one fresh-water diatom (Navlcula pelliculosa) examined in an early study, all were found to contain major amounts of the four polar lipids usually associated with photosynthetic... 

Accl (ACC) Cyclotella cryptica (algae) Cyclotella cryptica (algae) 2-3 X ACC activity, no change in lipid content Dunahay et al. (1996), Dunahay etal. (1995)... 

Roessler PG, Ohlrogge JB. Qoning and characterization of the gene that encodes acetyl-coenzyme A carboxylase in the alga Cyclotella cryptica. J Biol Chem 1993 268 19254-9. 

Roessler PG. Purification and characterization of acetyl-CoA carboxylase from the diatom Cyclotella cryptica. Plant Physiol 1990 92 73-8. 

---