Pronunciation: [djˈuːtəplˌazəm] (IPA) 
Deutoplasm is a biological term that refers to the yolk cytoplasm of an oocyte. The spelling of the word is derived from its Greek origins, with "deuto-" meaning second and "plasma" meaning something molded or formed. In IPA phonetic transcription, the word is pronounced as /dju:təʊplæzm/. The "eu" sound is pronounced like "you," while the "o" is pronounced like "oh." The "a" in "plasm" is pronounced as a short "a" sound.
Deutoplasm refers to the reserve of nutrients and cytoplasmic substances present in the ova or eggs of female organisms, particularly in certain invertebrates and vertebrates. It is a specialized form of nutritive material that accumulates within the egg cells during their development. Deutoplasm serves as an essential source of nourishment for the developing embryo or zygote.
The term "deutoplasm" is derived from the Greek words "deuteros," meaning second, and "plasma," meaning something molded or shaped. This name reflects the fact that deutoplasm is a secondary substance formed within the egg cell, distinct from the primary cytoplasm.
The composition of deutoplasm varies depending on the species. It typically consists of proteins, lipids, glycogen, nucleic acids, and other organic molecules. These nutrients remain stored within the egg, ensuring that the developing embryo has an initial supply of essential molecules to support its growth and development until it can access external food sources.
Deutoplasm plays a crucial role in developmental processes such as cell division, differentiation, and organ formation during embryogenesis. It is gradually utilized by the growing embryo as it transforms into a more complex organism. In some organisms, deutoplasm may also contribute to the formation of structures like yolk sacs or provide defense mechanisms for protection against predators or environmental challenges.
Understanding the nature and function of deutoplasm is important in the field of reproductive biology, as it sheds light on the mechanisms governing embryonic development and early life processes.
Deuteroplasm, the nutritive portion of the yolk made up of numerous refractile fatty and albuminoid bodies containing phosphorus and various salts.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "deutoplasm" is derived from the Greek word "deutos", meaning "second", and "plasma", meaning "something molded or shaped". This term was coined by the German physiologist and zoologist Karl Ernst von Baer in the early 19th century. "Deutoplasm" refers to a specialized type of cytoplasm found in the ova (eggs) of certain organisms, which serves as a reserve of nutrients for the developing embryo.
