The following points highlight the economic importance of algae. They are:- 1. Algae Constitute the Link of Food Chain 2. Algae Useful in Fish Culture 3. Recreational Purposes 4. Sewage Treatment Plants 5. Water Supplies 6. Origin of Petroleum and Gas 7. Limestone Formation 8. Space Research and Other Fundamental Studies 9. Food 10. Fodder 11. Fertilizers 12. Medicine 13. [...]
In this article we will discuss about the evolutionary trends in the development of plant body in the chlorophyta. i. Evolution of Sexuality in the Chlorophyta: The Chlorophyta represent an evolutionary series in which the gametic union became most firmly established even in the most primitive forms and persists among the highest members of the series. The evolution in sexuality [...]
The following points highlight the two families under which zygamatales has been classified. The families are: 1. Zygnemataceae 2. Desmidiaceae. Family # 1. Zygnemataceae: This family includes fresh-water multicellular filamentous forms of algae. Genus Spirogyra of Zygnemataceae: It is one of the common green algae occurring chiefly in ponds, pools, ditches, and similar other places. It prefers still, rather than [...]