As an extract, it is available as a dietary supplement and supports a thriving industry along Ireland's coasts. Brown algae, particularly members of this genus, are especially rich in iodine and including it in the diet is thought to possibly remedy some thyroid problems. In Japan, F. Cynthia D. Kelly , Thomas J. Fellers and Michael W. Visit the Molecular Expressions Website. Photo Gallery. Silicon Zoo.
Generally, Fucus is a seaweed , a large genus of brown algae with flat, leathery fronds. Apart from the Fucus , they also occur in other marine and freshwater algae as well as in angiosperms. Conceptacle in Fucus is a flask-shaped cavity, which contains reproductive organs. Generally, several conceptacles are located in the receptacle, which is a thick stem at the end of the branches. Also, the conceptacle opens to the outside by a small ostiole.
Besides that, another notable feature is that s ome conceptacles are pits within the thallus while others form raised domes protruding above it. Moreover, Fucus is a type of brown algae with no alteration of generations as it does not contain a haploid phase.
Also, its thallus is a saprophyte. Observe the displayed Fucus thallus. Note the dichotomous branching forking into two equal branches and the swollen, heart-shaped reproductive tips of the branches. These swollen branch tips are called receptacles. The receptacles are covered in small bumps, each with a pore at the center of the bump called an ostiole. The organism requires water for reproduction , as it produces flagellated sperm that move toward the egg to fertilize it via the water, this is called broadcast spawning.
Fucus Male Conceptacle. The conceptacles for the male reproductive organs are lined with antheridiophores, which are branched and feature inflated, terminal antheridia on their branches.
The antheridia are the sites of meiosis, forming 64 to biflagellated male gametes that are referred to as antherozoids. Asked by: Refugio Elanchik medical health brain and nervous system disorders What is the role of the Conceptacle in Fucus? Last Updated: 14th May, Conceptacles are specialized cavities of marine and freshwater algae that contain the reproductive organs.
They are situated in the receptacle and open by a small ostiole. Caecostomata, are found only in Fucus distichus, in these the ostiole becomes blocked during development. Elsita Aichmair Professional. What is the function of receptacle? The receptacle is an area where a flower binds itself to the stalk. After the fertilization process occurs, this receptacle often becomes part of the fruit produced by the flower. A common example of the fertilization product is the strawberry.
Now the stalk of the flower is often known as a peduncle. Airin Pankharia Professional.
0コメント