What is true about Oedogonium algae?
Oedogonium, genus of filamentous green algae (family Oedogoniaceae), commonly found in quiet bodies of fresh water. They often are attached to other plants or exist as a free-floating mass. Oedogonium filaments are typically unbranched and only one cell thick.
What is Oedogonium Macrandrous?
(i) Macrandrous: If antheridia are produced on normal size plant, Oedogonium forms are called macrandrous. Macrandrous species may be monoecious or dioecious. In monoecious macrandrous species antheridia and oogonia are produced on the same plant e.g., O. fragile, O.
How do you identify Oedogonium?
Isolates of Oedogonium were identified using DNA barcoding and taxonomic keys. Samples of each isolate were examined under dissecting and compound light microscopes and their morphological characteristics were recorded. Where possible, each sample was identified to species using taxonomic keys [15].
What is Oedogonium in biology?
Oedogonium – Importance, Life Cycle, Definition | Solved Question. Biology > Cell the Unit of Life > Oedogonium – Importance and Life Cycle. Cell the Unit of Life.
How many flagella does Oedogonium have?
Meiosis occurs in the zygote prior to germination, producing four multi-flagellated cells after germination. Once freed from the oogonium, each daughter cell is only motile for a short period of time.
Is Oedogonium a microalgae?
These are the most widely studied group of benthic algae in lakes, perhaps because of their obvious accumulation in the littoral zone. Larger forms, such as Cladophora, Chara, Hydrodictyon, and Oedogonium, serve as additional substrata for micro-algae.
What is the difference between Macrandrous and Nannandrous species of Oedogonium?
As adjectives the difference between macrandrous and nannandrous. is that macrandrous is (botany) having antheridia formed on normal-sized male vegetative filaments while nannandrous is having nannandria.
How is Oedogonium unique?
We know that when a cell divides into two daughter cells, two separate processes are involved, one is cell division and the other is cell elongation including the cell walls. The method of cell division and growth of cell wall is unique and peculiar in Oedogonium. The cell wall does not elongate in the usual way.
What is the life cycle of Oedogonium?
The life cycle of Oedogonium is haplontic. The egg from the oogonia and the sperm from the antheridia fuse and form a zygote which is diploid (2n). The zygote then undergoes meiosis and reproduces asexually to form the filamentous green alga which is haploid (1n).
Are Oedogonium autotrophic or heterotrophic?
part 2
| Question | Answer |
|---|---|
| Oedogonium | Chlorophyta, unicellular, have cellulose in cell wall |
| Euglena | in Euglenozoa, have 2 flagellum can be autotrophic or heterotrophic and live in fresh water/salt water, and have a styme for light sensing, stored foods as PARAMYLON |
What chloroplast occurs in Oedogonium?
Chlamydomonas. Hint: Ulothrix has band shaped chloroplast, Oedogonium has meshwork like chloroplast, Spirogyra has spiral shaped and Chlamydomonas has cup shaped chloroplast.
Is Oedogonium harmful?
Oedogonium are readily available, non-toxic microorganisms which may be cultivated and/or cultured easily. Due to their position at the surface, algal blooms can block out the sunlight from other organisms and deplete oxygen levels in the water during peak summer months.
What kind of life cycle does Oedogonium have?
Oedogonium is a kind of green algae. As many as half of the various species of green algae reside in the United States. Oedogonium are distinguished by their interesting haploid life cycle. This is because Oedogonium undergo both asexual and sexual reproduction.
Where do oogonia and antheridia occur in Oedogonium fragile?
Macrandrous monoecious – Antheridia and Oogonia occur on same filament – Oedogonium fragile. Macrandrous dioecious – Antheridia and Oogonia occur on separate filaments – Oedogonium crassum In nannadrous species antheridia are produced on reduced male filaments called dwarf male plants (O.cancatenatum).
What makes Oedogonium different from other macroalgae?
Oedogonium is a genus of green freshwater, filamentous macroalgae. The filaments of Oedogonium set it apart from other types of macroalgae, due to its rings of cells. Several hundreds of species of Oedogonium are known to exist thus far.
How are sexual organs produced in an Oedogonium?
The sexual organs, antheridia and oogonia, may be produced on the filaments of normal size (macrandrous species), or the oogonia are borne on normal filament, the antheridia being produced on special dwarf male filament or nannandrium (nannandrous species) consisting of a few cells. Macrandrous species may be homothallic or heterothallic.