Where are Spirogyra found?
Spirogyra is a large genus (about 400 species) of freshwater green algae found in shallow ponds, ditches and amongst vegetation at the edges of large lakes, generally growing free-floating. It often grows in short-lived (‘ephemeral’) ponds that build up during wet weather, and dry up subsquently.
Is Spirogyra found in pond water?
Spirogyra occurs in freshwater bodies such as ditches, ponds, lakes etc.
What causes Spirogyra?
Most filamentous algae prefer stagnant, nutrient rich, warm waters. Spirogyra however, is one species that flourishes more in cooler spring and fall months. The cause of these algal accumulations is typically associated with an overabundance of nutrients—particularly nitrogen and phosphorous—in the water.
How does Spirogyra live?
Spirogyra live in freshwater habitats from shallow ditches to the edges of mighty lakes, and they use their chloroplasts to change light energy into food (photosynthesis), just like your typical houseplants. You can also see that the individual Spirogyra cells link together to form long filament chains.
What is spore formation?
Spore Formation is a method in Asexual Reproduction. When Sporangia burst; minute single-celled, thin or thick walled structures called spores are obtained. Under suitable conditions, they develop into a new Plant.
Is Sea Lettuce an animal?
L. Ulva lactuca, also known by the common name sea lettuce, is an edible green alga in the family Ulvaceae. It is the type species of the genus Ulva.
How does Spirogyra propagate?
Spirogyra species can reproduce both sexually and asexually. Asexual, or vegetative, reproduction occurs by simple fragmentation of the filaments. Sexual reproduction occurs by a process known as conjugation, in which cells of two filaments lying side by side are joined by outgrowths called conjugation tubes.
What does the spirogyra eat?
Spirogyra do not eat in a traditional sense. Instead, Spirogyra undergoes photosynthesis to harness energy from the sunlight and turn it into usable chemical energy. Photosynthesis can be separated into two categories: oxygenic and anoxygenic. Oxygenic photosynthesis is the most common amongst Spirogyra.
Where does spores come from?
Spores are produced by bacteria, fungi, algae, and plants. Bacterial spores serve largely as a resting, or dormant, stage in the bacterial life cycle, helping to preserve the bacterium through periods of unfavourable conditions.
Where are spores formed?
Sporangia
Spore Formation is a method in Asexual Reproduction. Many Spores are stored in sacs called Sporangia. When Sporangia burst; minute single-celled, thin or thick walled structures called spores are obtained. Under suitable conditions, they develop into a new Plant.
Can you eat Ulva?
Ulva intestinalis, also edible. Commonly called Sea Lettuce or Green Laver, it can also used as a substitute for nori (see Porphyra) a seaweed used in sushi. Ulva should be washed well then use or as an option soak it in water for two hours before using to moderate the flavor.
Is kelp a plant?
Kelp grows in temperate water, often in thick beds called forests. Kelp is like a plant – it is photosynthetic and has structures that look like roots (the kelp holdfast), stems (the stipe) and leaves (blades)– but kelp and other algae belong to a separate kingdom of life from plants, called protists.
What does Spirogyra look like under water?
In spring Spirogyra grows under water, but when there is enough sunlight and warmth they produce large amounts of oxygen, adhering as bubbles between the tangled filaments. The filamentous masses come to the surface and become visible as slimy green mats. Spirogyra has a cell wall, nucleus, pyrenoid and spiral chloroplasts.
What is the scientific name of Spirogyra?
Spirogyra. Spirogyra, (genus Spirogyra ), any member of a genus of some 400 species of free-floating green algae (division Chlorophyta) found in freshwater environments around the world. Named for their beautiful spiral chloroplasts, spirogyras are filamentous algae that consist of thin unbranched chains of cylindrical cells.
Is Spirogyra filamentous or filamentous?
Named for their beautiful spiral chloroplasts, spirogyras are filamentous algae that consist of thin unbranched chains of cylindrical cells. Spirogyra, any member of a genus of some 400 species of free-floating green algae found in freshwater environments around the world.
Does Spirogyra reproduce sexually or asexually?
Spirogyra has a cell wall, nucleus, pyrenoid and spiral chloroplasts . Spirogyra can reproduce both sexually and asexually. In vegetative reproduction, fragmentation takes place, and Spirogyra simply undergoes intercalary cell division to extend the length of the new filaments. Sexual reproduction is of two types:
https://www.youtube.com/watch?v=6WMp9mZ5OS4