Tegument (helminth)

Tegument is a term in helminthology for the outer body covering of members of the phylum Platyhelminthes. The name is derived from a Latin word tegumentum or tegere, meaning "to cover". It is characteristic of flatworms including the broad groups of tapeworms and flukes. Once considered to be a non-living component, it is now known to be a dynamic cellular structure. In fact it is a living structure consisting of proteins, lipids, carbohydrates and RNA. It forms the protective layer and the host-parasite interface of the worms, serving both secretory and absorptive functions.

Venom optimization hypothesis

Venom optimization hypothesis, also known as venom metering, is a biological hypothesis which postulates that venomous animals have physiological control over their production and use of venoms. It explains the economic use of venom because venom is a

VHb (hemoglobin)

Vitreoscilla haemoglobin (VHb) is a type of haemoglobin found in the Gram-negative aerobic bacterium, Vitreoscilla. It is the first haemoglobin discovered from bacteria, but unlike classic hemoglobin it is composed only of a single globin molecule

Ethylene signaling pathway

Ethylene signaling pathway is a signal transduction in plant cells to regulate important growth and developmental processes. Acting as a plant hormone, the gas ethylene is responsible for promoting the germination of seeds, ripening of fruits, the opening

Brockmann body

Brockmann body is an endocrine organ in some teleost fish, and is composed of a collection of islet tissues. The islet tissues are in turn composed of endocrine cells which are the principal sites of insulin synthesis. They are distributed around the

Hallucigeniidae

Hallucigeniidae is a family of extinct worms belonging to the group Lobopodia that originated during the Cambrian explosion. It is based on the species Hallucigenia sparsa, the fossil of which was discovered by Charles Doolittle Walcott in 1911 from the

Last Ice Area

The Last Ice Area is broadly the large interior polar region of the Arctic Circle covering an area between the northern edge of Greenland and the Canadian Arctic Archipelago and is the most northerly coastal zone of the world. Being in a permafrost

Redi Award

Redi Award is an international science award given to scientists who have made significant contributions in toxinology, the scientific study of venoms, poisons and toxins. The award is sponsored by the International Society on Toxinology (ISI

AlkD

AlkD is an enzyme belonging to a family of DNA glycosylases that are involved in DNA repair. It was discovered by a team of Norwegian biologists from Oslo in 2006. It was isolated from a soil-dwelling Gram-positive bacteria Bacillus cereus, along with

National Council for Science and Technology Communication

The National Council for Science and Technology Communication (NCSTC) is a scientific programme of the Government of India for the popularisation of science, dissemination of scientific knowledge and inculcation of scientific temper. Established under the

Cassava Sciences

Cassava Sciences is a pharmaceutical company based in Austin, Texas, USA. Established in 1998 as Pain Therapeutics, the new name was adopted to focus on drugs for neurodegenerative diseases like Alzheimer's disease. Its founder, Chief Executive Officer