What are characteristics of Cyanophyceae?
1. Cell structure is prokaryotic in both the group, having unorganised nucleus and devoid of membrane bound organelle. 2. The capsule of bacteria (if present) and mucilaginous sheath of blue green algal cells are made up of fine fibrils.
What is the meaning Cyanophyceae?
Noun. 1. Cyanophyceae – photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae.
What is chlorophyceae in biology?
: a class of algae (division Chlorophyta) distinguished chiefly by having a clear green color, their chlorophyll being masked or altered little or not at all by other pigments.
Why Cyanophyceae is compared with cyanobacteria?
Bacteria: Because most cyanobacteria are photosynthetic and often share the same habitat as eucaryotic photosynthetic protists (“algae”), they were previously classed as cyanophyceae, where “‑phyceae” in botanical nomenclature signifies eukaryotic “algae”.
Why nostoc is included in Cyanophyceae?
Nostoc are prokaryotic and are grouped with bacteria. The cell lacks membrane-bound organelles and genetic material is found dispersed in the cytoplasm. They are kept in cyanobacteria as they are photosynthetic….Nostoc Classification.
| Domain | Bacteria |
|---|---|
| Phylum | Cyanobacteria |
| Class | Cyanophyceae |
| Order | Nostocales |
| Family | Nostocaceae |
Which are the reserve food material in Cyanophyceae?
In Chlorophyceae starch remains the reserve food material. In Cyanophyceae it is myxophycean starch. Floridean starch is found in Rhodophyceae. In Pheaophyceae, mannitol, laminarin are main reserve food material while in Xanthophyceae, leucosine and oil are reserve food.
What is the characteristics of Nostoc?
Like most blue-green algae, Nostoc contains two pigments, blue phycocyanin and red phycoerythrin, as well as chlorophyll, and has the ability to fix nitrogen in specialized cells called heterocysts. A terrestrial species has been used as a supplementary food source in Asia.
What is Chromoplasm in Cyanophyceae?
Chromoplasm is the the peripheral protoplasm of cyanobacteria. This part is rich in thylakoid. It contains chlorophyll, accessory pigments and stored substances.
What are the characteristics of a Cyanophyta cell?
Characteristics General of Cyanophyta: 1 Type of prokaryotic cells (similar to the bacteria) 2 There is a form of unicellular (single-celled), there are colonies and there is also a form of filaments. 3 Has the pigment chlorophyll, the pigment fikobilin karotinoid and consisting of phycocyanin (blue), and fikoeritin (red).
What are the members of the Cyanophyceae?
About twenty two (22) filamentous members of Cyanophyceae like Nostoc, Anabaena, Aulosira, Anabinopsis, Calothrix, Scytonema etc. can fix atmospheric nitrogen and form nitrogenous compounds. These compounds are further absorbed by the plant for their metabolic activity and increase yield.
How many species of Cyanophyta are there in the world?
Cyanophyta is a group consisting of 1,500 species with its main characteristic bluish-green. Cyanophyta encased in the wall of peptidoglycan surrounded by a sheath slimy / sticky.
What are some of the characteristics of fungi?
Fungi are heterotrophic: they use complex organic compounds as sources of energy and carbon, not photosynthesis. Fungi multiply either asexually, sexually, or both. The majority of fungi produce spores, which are defined as haploid cells that can undergo mitosis to form multicellular, haploid individuals.