Table of Contents
What is the function of the Sporangiophore?
function in plant reproduction Each sporangiophore bears a number of fingerlike sporangia, which produce large numbers of thin-walled green spores.
What is the function of sporangium in fungi?
Fungi. In some phyla of fungi, the sporangium plays a role in asexual reproduction, and may play an indirect role in sexual reproduction. The sporangium forms on the sporangiophore and contains haploid nuclei and cytoplasm.
What is the function of sporangia on ferns?
A sporangium is a structure in certain plants and other organisms that is charged with making and storing spores. Spores are haploid structures created in organisms that help to germinate and form new organisms. In other words, they help organisms to reproduce.
What happens to the sporangium as it matures?
The sporangium generally terminates an elongate stalk, or seta, when the sporangium is ready to shed its spores. The sporangium rupture usually involves specialized structures that enhance expulsion of the spores away from the parent gametophyte.
What is the difference between Sporangiophore and Conidiophore?
The key difference between conidiophore and sporangiophore is that conidiophore is the aerial hypha of ascomycetes fungi that bears asexual spores called conidia while sporangiophore is the aerial hypha of zygomycetes fungi that bears asexual spores called sporangiospores.
What is a Sporangiophore in biology?
Definition of sporangiophore : a stalk or similar structure bearing sporangia.
What is the function of the sporangium in rhizopus?
Their function is to absorb food for growth & for spore production.
Why does drying out of the sporangia cause the spores to be flung away from the parent plant?
Due to the anhydrous conditions, the mature sporangia start to open and begin to release the spores, ending with a rapid movement to catapult the spores away. Dehydration causes these water-filled cells to dry out, contracting and straightening, ejecting the spores.
Which spore is formed in sporangia?
One of the most important criteria was the formation of spores and their morphology. Sporangiospores are formed endogenously in a sporangium via cytoplasmic cleavage in the zygomycetes. Motile, flagellated spores of the chytridiomycetes are called zoospores and the term conidium is used for an asexual, nonmotile (cf.
How do sporangia release spores?
The second form of asexual reproduction occurs by spores. These form on the undersides of the leaves in spore cases called sporangia. Clusters of sporangia, or sori, appear as brown spots and may or may not be present on all leaves. When the sporangia dry out, they break open, releasing the spores into the wind.
How do you tell Septate from Nonseptate hyphae?
Hyphae that have walls between the cells are called septate hyphae; hyphae that lack walls and cell membranes between the cells are called nonseptate or coenocytic hyphae) (Figure 1).
What is the difference between ascus and Basidium?
The ascus is a sac-like structure that bears reproductive cells. These cells produce sexual spores. Basidium is a club-shaped structure having sexual cells that produce sexual spores.