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| FUCUS BY OXOM GYAN |
} Presented by
} Name:-
} Bsc.1st semester
} Deptt.Botany
} Roll No
} Year :
} Division : Phaeophyocphyta
} Class : Phaeophyceae
} Order : Fucales
} Family : Fucaseae
} Genus : Fucus
Introduction
* Fucus is an exclusively marine alga, widely
distributed along the sea coasts of temperate and arctic regions.
** They are attached to the rocks under cold water between the high and low tide marks by their flat discoid
holdfasts.
} The plant body i.e. thallus is more or
less then 30 cm. The vegetative body of the focus plant is composed of three
main parts are:-
} *Holdfast
} **Stipe
} ***Frond or blade
}
}
} The fucus reproduced mainly two type,
namely:-
1.Vegetative Reproduction.
2.Sexual
Reproduction.
1.VEGETATIVE REPRODUCTION
**It takes place by fragmentation of the vegetative body in to many parts,each of which grows into a new thallus**
2.Sexual
Reproduction
} **Sexual reproduction of higher type of oogamy exist in Fucus.In homothallic species,both antheridian and oogonia borne in the same or in different conceptableces on the same plant while in heterothallic speiceis,the antheridian and oogonia are borne in separat conceptales on different plants.
Antheredium and
development of anthero zoids i.e. sperms
} The male conceptacle bears numerous antheridia and paraphyses.Antheridia develop on irregular branched fertile paraphyses, developing from conceptacle wall .Antheridia are small, club-shaped, unicelluar and provided with a small stalk-like structure and more noumerous than oogonia.
Fig.
of sexual reproduction
Oogonium and the development of egg
} The oogonia are oval or somewhat eelipsoidal in
shape and are provided with one-called short stalks. They are produced among
the paraphyses within the female orr mixed conceptacle. Each conceptacle
contains several oogonia.
Conclusion
} Vesiculosus treatment prevented the rats from becoming obes and
the biochemical and physical parameters were mainteined to normal levels.So
,the fucus vesiculous can be taken up for further research on human subject..
