Spirogyra

Phytane is a naturally occurring alkane produced by the alga Spirogyra and is a constituent of petroleum The lUPAC name for phytane is 2 6 10 14 tetramethylhexadecane Write a structural formula for phytane... 

FIGURE 22.3 (a) Spirogyra—a fre.shwater green alga, (b) A higher plant cell. 

Concerning the environmental behavior of a disodium alkyl sulfosuccinate, biodegradation in the presence of an algal species is described [113]. According to this paper, the degradation is 90% after 7 days if Spirogyra sp. is present. Alkylbenzenesulfonates are less degraded under the same conditions. 

Gupta, V.K. and Rastogi, A., Biosorption of lead from aqueous solutions by green algae Spirogyra species Kinetics and equilibrium studies, Journal of Hazardous Materials, 152, 407-414, 2008. 

Mohan SV, Ramanajah SV, Sarma PN (2008) Biosorption of direct azo dye from aqueous phase onto Spirogyra sp. 102 evaluation of kinetics and mechanistic aspects. Biochem Eng J 38(l) 61-69... 

Mohamed ZA (2002) Allelopathic activity of Spirogyra sp. stimulating bloom formation and toxin production by Oscillatoria agardhii in some irrigation canals, Egypt. J Plankton Res 24 137-141... 

Pueschel C. M. (2001) Calcium oxalate crystals in the green alga Spirogyra hatillensis (Zygnematales, Chlorophyta). Int. J. Plant Set 162(6), 1337-1345. 

One of the early enthusiasts of microscopy was Antoni van Leeuwenhoek. During the sixteenth century he constructed over 500 single lens microscopes. While crude by today s standards, van Leeuwenhoek s microscopes revealed an array of microbial life. For example, his descriptions of organisms found in lake water were the first observations of the green algae called Spirogyra and another microbe that came to be known as Vorticella. Finally, his observation of animacules in tooth plaque was the first visual detection of bacteria. 

Sometimes, as in the cells 6f lower plants like the Spirogyra, plastids are large and are then called chromatophores. 

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