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 Xanthophyta or Heterokontae are commonly known as yellow-green algae include only one class Xanthophyceae. This division has close relationship with the Ghlorophyta comprising both marine and fresh-water forms. Certain species grow on drying mud, on trunk of trees, on damp walls, and similar other habitat. There are varied forms of vegetative body ranging from unicellular coccoid, siphonaceous to filamentous [...]