Algae

Reefs A reef is a bar of rock, sand , coral or similar material , lying beneath the surface of water.  Many reefs result from abiotic processes (i.e. deposition of sand, wave erosion, and other natural processes), but the best known reefs are the coral reefs of tropical waters developed …

(Preliminary article: will be updated very soon) The cell wall of seaweeds contains about 30 to 40% polysaccharide of plant’s dry matter. And these polysaccharides are commonly known as phycocolloids (= algal colloids). By definition, the cell walls of red and brown algae consist of cellulose micro fibrils which contain …

(Preliminary article: will be updated very soon) As carbon sink Phytoplankton and seaweeds release O2 in the water body keeping it aerobic in one hand and as Carbon sink by fixing CO2 on the other hand. A comparison of the amount of carbon fixed by terrestrial plants with that of …

When we think of animals and plants, we have a pretty good way of dividing them into two distinct groups: one converts sunlight into energy and the other has to eat food to make its energy. Well, those dividing lines come crashing down with the discovery of a sea slug …

Pyrrophyta or fire algae is a division of unicellular algae that has a yellow brown color, and has two different flagella which are ribbon-shaped. It contains some pigments (chlorophyll-a, chlorophyll-b, c1, c2 and fucoxanthin) that can photosynthesize. Early botanists classified dinoflagellates as a separate division of algae, which they named …

Batch culture: A close system culture of algae in which there will be no supply or withdrawal of culture medium and biomass into or out of the culture vessel. In this type of culture the amount of medium and inoculum are known and specific. a. Lag phase It is the …

Culture of algae in laboratory is not only important for knowing the details of the external morphology and reproduction in a particular algae or algal group, it is equally important to know the details of algal life-histories, taxonomy, physiology, biochemistry, genetics and also its ultra-structure. Most of  the development in …

The branch Phycology has come into existence in 1753 when Carolus Linnaeus first discovered four genera namely Fucus, Conferra, Chara and Ulva. Exactly after 200 years in 1953, Prof. A. K. M. Nurul Islam started to work on algal taxonomy in the Department of Botany, University of Dhaka and devoted …

Algae is a group of photosynthetic organisms found in both marine and freshwater habitats. As these organisms have a short duplication time, they are considered among one of the fastest growing creatures. They have efficient pathways to fix atmospheric carbon dioxide and to efficiently utilize the available nutrients to convert …

Algae is a hetergenous group of organisms containing members having chlorphyll ‘a’ as their primary photosynthetic pigments. These green chlorophyll molecules along with some accessory pigments are contained generally in a membrane bound packet like structure called chloroplast within the algal body. In some members, chloroplast is absent though; such …