Home ScienceBiologyPlants & Botany Subscribe to RSS
 

Can You Describe Life Cycle Of Liverworts?

Answer Question

1 Answer - Sort by: Date | Rating

    Life cycle:

    Gametophyte:
    The plant body is a gametophyte. It may be thalloid i.e., flat or ribbon like, usually dichotomously, branched. It is attached to soil by means of rhizoids e.g., Marchantia.Other species tend to row upright and are falsely leafy i.e., differentiated into a false stem, and leaves e.g., Porella.

    Sex Organ:
    The sex organ develop on the upper surface of the thallus near the tips of the branches sometimes, they develop on special branches on gametophyte, called the antheridiophores and the archegoniophores as in Marchantia.The female sex organ is called archegoniumand male sex organ is called anthredium. Both grow on same or different thallus.

    Gametes:
    In Marchantia the antheridia produce unicellular haploid male gametes called antherozoids.The antherozoids are flagellated and mobile. The archegonia produce eggs.

    Fertilization:
    The antherozoids swim through water and reach the archigonium.They produce zygote there after fertilization. Diploid oospores divide mitotically and form the multicellular embryo which develops to form the sporophytes.

    Sporophyte and Spore:
    The mature sporophytes consists of a foot ,seta and a large capsule as in Pellia and Marchantia.The capsule splits to release spore which are dispersed by the air current.
    1 0

    Pretty123 

    answered 3 years ago

    This is the best explanation.thank you very much.
    Report
    Ashty

    Ashty

    commented 3 months ago

      Answer Question - Answers are editable for 5 min.

      If you do not Sign-in or Register your answers will be anonymous,

      your answers may also be checked before going online.

      More

      More

         
         

        Ask a Question via Twitter

        Send a question to @askblurtit and we will publish it online and send you a reply everytime you receive an answer.

        Blurtit Store

        Get T-shirts, hoodies, caps and more at the Blurtit store

        Blurtit International