kinetoplast


Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to kinetoplast: Kinetoplastida

kinetoplast

 [kĭ-ne´to-plast]
an accessory body found in many protozoa, primarily the Mastigophora; it contains DNA and replicates independently.

ki·ne·to·plast

(ki-nē'tō-plast, ki-net'ō-),
An intensely staining rod-shaped, diskoid, or spheric extranuclear DNA structure found in parasitic flagellates (family Trypanosomatidae) near the base of the flagellum, behind the blepharoplast, and often at right angles to the nucleus. Visible by light microscopy, electron micrographs reveal it as part of a single giant mitochondrion filling most of the cytoplasm of amastigote flagellates. Identifying kinetoplast as kDNA distinguishes it from nuclear DNA(nDNA). The kinetoplast divides independently, but with the basal body, before nuclear division. Kinetoplast formerly included parabasal body and blepharoplast in a locomotory apparatus but is now recognized as a distinct organelle of most trypanosomatids.
See also: parabasal body.
[kineto- + G. plastos, formed]

kinetoplast

/ki·ne·to·plast/ (ki-nēt´o-plast) a structure associated with the basal body in many protozoa, primarily the Mastigophora; it is rich in DNA and, like the basal body, it replicates independently.

kinetoplast

(kə-nĕt′ə-plăst′, -nē′tə-, kī-)
n.
A loop of DNA located in a large mitochondrion that lies near the base of the flagellum in certain protozoans.

ki·ne·to·plast

(ki-nē'tō-plast)
An intensely staining extranuclear DNA structure found in parasitic flagellates near the base of the flagellum. Electron micrographs show it to be part of a single giant mitochondrion filling most of the cytoplasm of amastigote flagellates.
See also: parabasal body
[kineto- + G. plastos, formed]

kinetoplast

see KINETOSOME.

kinetoplast

an accessory body found in many protozoa, primarily the Mastigophora; it contains DNA and replicates independently.
References in periodicals archive ?
Leishmania infections of sandflies identified by the seminested PCR of minicircle kinetoplast (k) DNA
Characteristic features of the amastigote, the intracytoplasmic kinetoplast and a rod-shaped mitochondrial structure composed of DNA, are helpful diagnostic criteria in cytology sections of patients with leishmaniasis.
They had an eccentrically placed, basophilic, oval nucleus and a small, basophilic, rod-shaped kinetoplast oriented perpendicular to the long axis of the oval nucleus.
However, leishmanial parasites contain a characteristic bar-shaped paranuclear kinetoplast.
On the basis of ultrastructural morphology and sequence comparison of small subunit ribosomal RNAs, Leishmania and Trypanosoma are phylogenetically related and both species have a kinetoplast that contains superhelical DNA (9).
Control cells showed a normal ultrastructure, with normal plasma membrane, nuclei, mitochondrion, kinetoplast, flagellum and flagellar pocket (Fig.
Amplification of kinetoplast DNA as a tool in the detection and diagnosis of Leishmania.
Molecular evidence of Leishmania species was pursued using kinetoplast minicircle DNA-specific primers.
Monoterpenes like Linalool isolated from leaves of Croton cajucara [Euphorbiaceae), effectively increased the production of NO in Leishmania infected macrophages, along with directly targeting the parasite as evidenced by mitochondrial swelling and alterations in the organization of nuclear and kinetoplast chromatin (do Socorro et al.
Sensitive detection and schizodeme classification of Trypanosoma cruzi cells by amplification of kinetoplast minicircle DNA sequences: use in diagnosis of Chagas' disease.
The amplification target is a part of kinetoplast DNA (kDNA), designed for identification and differentiation between L.