Question

In autocross, the sporangium tissue develops from
A. Apothecium
B. Endothecium
C. Amphithecium
D. Perithecium

Answer 1

Hint: Sporangium is a structure, which holds the spores inside them. All plants, sporangia and fungi go through a phase in their life cycle by being a sporangium where the reproductive spores are made and stored.

Complete answer:
The spores are a result of either asexual or sexual reproduction, which exist in unfavourable conditions for a long period. This happens for the purpose of dispersion and survival. They are haploid produced by meiosis inside sporangium, which develop into an organism when conditions become favourable. The fruiting bodies in the fungi are the sporangium. The fungi are classified into different types based on the morphology of their fruiting bodies as Apothecia, perithecia and cleistothecia. Now that we have narrowed down our options to apothecium and perithecium let us understand their role.
Apothecium – It is a fruit bearing body of fungi ascomycota. They are wide, open and have a cup shaped structure. The spores are forcefully let out in the air when they mature. The genera Helvella and Gyromitra have apothecium.
Perithecia – They are also fruiting bodies similar to apothecium, but they are cylindrical or flask shaped fruiting bodies with a terminal pore called ostiole through with the escape. The canal of the ostiole contains hair-like structure. Such bodies are found in Xylaria, Neurospora and Nectria.

Thus, in autocross, the sporangium develops from (A) Apothecium.

Note:
Now let us learn the morphology and functions of Amphithecium and endothecium.
Amphithecium – They are a layer around the developing sporophyte of phylum bryophytes that eventually forms the capsule wall.
Endothecium – The endothecium is a mass of cells in the developing capsule that acts as a spore sac and develops into air pockets between the capsule wall and endothecium.