Question

The dehiscence of moss capsule takes place by rupture of [CPMT 1990; BHU 1987]
A) Operculum
B) Peristome
C) Annulus
D) Calyptra

Answer 1

The answer to your question is B

Answer 2

The dehiscence of the moss capsule takes place by rupture of the C) Annulus.

About Dehiscence:

• A mature plant structure dehisces, or splits, along a naturally occurring line of weakness, releasing its contents.
• Among fruits, anthers, and sporangia, this is typical.
• Structures that open in this way are described as being dehiscent. In certain cases, this entails the total separation of a component.
• Dehiscent refers to plants that open when they reach maturity in botany.
• These plants possess a specific line of vulnerability that allows them to break open and discharge their internal contents.
• Among sporangia, anthers, and fruits, dehiscence is typical.
• In rare circumstances, the building could fully separate from the facility.

Dehiscence of moss capsule:

• The calyptra, a thick protective coating, fully encircles the sporophyte in its early stages of development.
• The calyptra is shed and the capsule is visible when the sporophyte reaches maturity.
• The so-called peristome teeth, a group of structures that create a ring around the mouth (rim) of the capsule and are frequently delicate and thread-like in appearance, are exposed when the lid (operculum) of the capsule, which is located at the tip of the capsule, breaks away prior to spore dispersal.
• The annulus is ruptured during the dehiscence of the moss capsule.
• Similar to the endothecium found in the walls of anthers, endothecium tissue is found in moss capsules and performs the same role during dehiscence.

#SPJ6