What is the difference between Phaeophyta and rhodophyta?
Red algae are classified under Rhodophyta, and brown algae are classified under Phaeophyta while green algae are classified under Chlorophyta. Hence, this is one important difference between red brown and green algae.
How do you identify algae under a microscope?
Under the microscope they appear like balloon or pear-shaped chrysophycean cells, each with two golden chloroplasts, present in roundish motile colonies. Every cell has two flagella prominent outwards from the colony, and a stem fixed inward near to the colony center.
Can algae be microscopic?
Algae are almost ubiquitous throughout the world and can be categorized ecologically by their habitats. Planktonic algae are microscopic and grow suspended in the water, whereas neustonic algae grow on the water surface and can be micro- or macroscopic.
What are the characteristics of Phaeophyta?
The Phaeophyta (brown algae) are characterized by five chief distinguishing features: (1) the photosynthetic pigments include chlorophyll-a and chlorophyll-c, β carotene, fucoxanthin, violaxanthin, diatoxanthin and other xanthophylls, and in general there is an excess of carotenoid over chlorophyll pigments; …
How does Phaeophyta reproduce?
They are essential elements of coastal ecosystems, often forming dense algal beds comparable to the forests in terrestrial ecosystems (Dayton 1985). They commonly reproduce by asexual heterokont zoospores, or zygotes formed by fusion of motile or nonmotile female gametes with heterokont male gametes.
How do you identify green algae?
Green algae contain primarily chlorophyll A and B. This reflects that green color. This makes them look either a bright or a dull green in nature and these are all over the board. These can be very small, planktonic and microscopic forms, or they can be thick large mats, and can even include macro algae as well.
What is phylum Phaeophyta?
Heterokont
Ochrophyta
Brown algae/Phylum
Is algae a genus?
| Green algae | |
|---|---|
| Stigeoclonium, a chlorophyte green alga genus | |
| Scientific classification | |
| (unranked): | Archaeplastida |
| Kingdom: | Plantae |
How do algae reproduce vegetatively?
Asexual reproduction is the production of progeny without the union of cells or nuclear material. Many small algae reproduce asexually by ordinary cell division or by fragmentation, whereas larger algae reproduce by spores.
What is the classification of Phaeophyta?
Phaeophyceae
Brown algae/Scientific names
What are the different types of Phaeophyta algae?
Phaeophyta is greenish-brown colored algae that include fucoxanthin, beta-carotene, and chlorophyll a and c. The length of Phaeophyta can range from a microscopic length to several meters. The longest size measured is about 30 meters. They are the most multifaceted forms of algae, usually adopted in the sea atmosphere.
How is Phaeophyta used as a food source?
► In addition, phaeophyta is used as a food source. The brown algae, laminaria is cultivated on man-made algal ponds (using ropes) for the production of food supplements and alginates. ► Harvested phaeophyta are then processed to prepare seaweed meals.
Is the Chrysophyta a brown or golden algae?
Chrysophyta (Golden algae) includes unicellular organisms of the kingdom Protista consisting of golden, or golden-brown, algae (class Chrysophyceae ), and yellow-green algae (class Xanthophyceae ), and diatoms (class Bacillariophyceae ). Some species are colorless, but most of them are photosynthetic.
How big is the largest Phaeophyta in the world?
Largest phaeophyta forms, for example, a giant kelp can reach to about 70 meters in length. They often cause nuisance to aquarium environment by developing brown patches on any exposed surfaces such as glass, rocks or gravel.