Why is tegument important for parasites?
Why is tegument important for parasites?
The tegument forms a protective barrier that guards these parasites, not only against the host immune system, but also from the physical extremes they encounter living in the digestive system, blood, or internal organs of their host.
What is the function of tegument?
Functions. The tegument is the host-parasite interface, and metabolically active body covering performing all the vital activities such as protection, absorption and secretion.
Where is tegument found?
Unique to herpesviruses, tegument is a structure that occupies the space between the nucleocapsid and the envelope and contains many virus encoded proteins called tegument proteins.
How is tegument formed in animals?
The tegument is a syncytial layer about 10 mm thick, that is formed by the fusion of cytoplasmic processes of tegument cells, whose soma lie underneath the two muscle layers.
What is the difference between cuticle and tegument?
As nouns the difference between cuticle and tegument is that cuticle is the outermost layer of the skin of vertebrates; the epidermis while tegument is integument, tegument.
What does tegument mean in medical terms?
(in-teg’yū-mĕnt) [TA] 1. The enveloping membrane of the body; includes, in addition to the epidermis and dermis, all of the derivatives of the epidermis, e.g., hairs, nails, and sebaceous sweat, and mammary glands. 2. The rind, capsule, or covering of any body or part.
What does tegument mean?
Definitions of tegument. a natural protective body covering and site of the sense of touch. synonyms: cutis, skin.
What virus has a tegument?
Herpes simplex virus 1 (HSV-1) is composed of complex structures primarily characterized by four elements: the nucleus, capsid, tegument and envelope. The tegument is an important viral component mainly distributed in the spaces between the capsid and the envelope.
What is the difference between tegument and cuticle?
What is tegument in biology?
Definition. The tegument of schistosomes is an outer-surface covering blood-dwelling flatworms. This unique structure consists of a double phospholipid bilayer (also known as the heptalaminar outer-surface structure) that ovelay a syncytium of fused cells surrounding the entire worm.
What is a tegument made of?
The basic structure of HSV-1 consists of four elements: the core and capsid are composed of a double-stranded DNA genome and viral DNA binding proteins surrounded by an icosahedral capsid; the tegument is a layer between the capsid and the envelope; the envelope is the outer layer of the virion and is composed of an …
What is the purpose of viral tegument?
The tegument generally contains proteins that aid in viral DNA replication and evasion of the immune response, typically with inhibition of signalling in the immune system and activation of interferons. The tegument is usually released shortly after infection into the cytoplasm.