BIOMAT Database Logo BIOMAT Database Logo

The ultrastructure of adult Brugia malayi (Brug, 1927) (Nematoda: Filarioidea). 1975

A L Vincent, and L R Ash, and S P Frommes

The ultrastruct of the adult subperiodic Brugia malayi (Brug, 1927) within pulmonary arteries of male jirds (Meriones unguiculatus) was studied by transmission electron microscopy. The cuticle consists of 10 sublayers (2 of which are prominently banded) and a typical outer unit membrane. Evidence is presented showing that the subcuticular region of the lateral chords comprises a functional complex of basal infoldings, multivesicular bodies, and associated mitochondria, which is probably engaged in the exchange of solutes across a permeable cuticle. Microbodies with paired, prominent cores, intracisternal A-particle viruslike bodies, nonstaining glycogen patches, and other structures are also present in the lateral chords. The platymyarian somatic musculature shares some coelomyarian characteristics, e.g., apparent neuromuscular connections and prominent glycogen deposits surrounded by mitochondria and other organelles. The alimentary tract has features typical of many nematodes. The luminal segments of the male and female reproductive tracts and their germinal products, excluding microfilariae, are described. Affinities with related species are discussed.

UI MeSH Term Description Entries
D007814 Larva Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals. Maggots,Tadpoles,Larvae,Maggot,Tadpole
D008297 Male Males
D008564 Membrane Potentials The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization). Resting Potentials,Transmembrane Potentials,Delta Psi,Resting Membrane Potential,Transmembrane Electrical Potential Difference,Transmembrane Potential Difference,Difference, Transmembrane Potential,Differences, Transmembrane Potential,Membrane Potential,Membrane Potential, Resting,Membrane Potentials, Resting,Potential Difference, Transmembrane,Potential Differences, Transmembrane,Potential, Membrane,Potential, Resting,Potential, Transmembrane,Potentials, Membrane,Potentials, Resting,Potentials, Transmembrane,Resting Membrane Potentials,Resting Potential,Transmembrane Potential,Transmembrane Potential Differences
D008566 Membranes Thin layers of tissue which cover parts of the body, separate adjacent cavities, or connect adjacent structures. Membrane Tissue,Membrane,Membrane Tissues,Tissue, Membrane,Tissues, Membrane
D008830 Microbodies Electron-dense cytoplasmic particles bounded by a single membrane, such as PEROXISOMES; GLYOXYSOMES; and glycosomes. Glycosomes,Glycosome,Microbody
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D008928 Mitochondria Semiautonomous, self-reproducing organelles that occur in the cytoplasm of all cells of most, but not all, eukaryotes. Each mitochondrion is surrounded by a double limiting membrane. The inner membrane is highly invaginated, and its projections are called cristae. Mitochondria are the sites of the reactions of oxidative phosphorylation, which result in the formation of ATP. They contain distinctive RIBOSOMES, transfer RNAs (RNA, TRANSFER); AMINO ACYL T RNA SYNTHETASES; and elongation and termination factors. Mitochondria depend upon genes within the nucleus of the cells in which they reside for many essential messenger RNAs (RNA, MESSENGER). Mitochondria are believed to have arisen from aerobic bacteria that established a symbiotic relationship with primitive protoeukaryotes. (King & Stansfield, A Dictionary of Genetics, 4th ed) Mitochondrial Contraction,Mitochondrion,Contraction, Mitochondrial,Contractions, Mitochondrial,Mitochondrial Contractions
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D011651 Pulmonary Artery The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs. Arteries, Pulmonary,Artery, Pulmonary,Pulmonary Arteries
D002009 Brugia A filarial worm of Southeast Asia, producing filariasis and elephantiasis in various mammals including man. It was formerly included in the genus WUCHERERIA. Brugias

Related Publications

A L Vincent, and L R Ash, and S P Frommes
The Adult of Microfilaria Malayi Brug, 1927.
March 1940, The Indian medical gazette,
A L Vincent, and L R Ash, and S P Frommes
Karyotypes of Brugia pahangi and Brugia malayi (Nematoda: Filarioidea).
December 1983, The Journal of parasitology,
A L Vincent, and L R Ash, and S P Frommes
The ultrastructure of the microfilaria of Brugia, Nematoda: Filarioidea.
October 1974, International journal for parasitology,
A L Vincent, and L R Ash, and S P Frommes
Pilot studies on the control of filariasis due to Brugia malayi (Brug, 1927) in Kerala.
December 1960, Indian journal of malariology,
A L Vincent, and L R Ash, and S P Frommes
Egg production in Brugia pahangi (Nematoda: Filarioidea).
February 1989, Parasitology,
A L Vincent, and L R Ash, and S P Frommes
Carbohydrate metabolism in Brugia pahangi (Nematoda: Filarioidea).
October 1986, International journal for parasitology,
A L Vincent, and L R Ash, and S P Frommes
Scanning electron microscopic study of Brugia malayi (Filarioidea: Onchocercidae).
March 1983, The Southeast Asian journal of tropical medicine and public health,
A L Vincent, and L R Ash, and S P Frommes
Susceptibility of Anopheles quadrimaculatus (Diptera: Culicidae) to subperiodic Brugia malayi and Brugia pahangi (Nematoda: Filarioidea) adapted to nude mice and jirds.
May 1990, Journal of medical entomology,
A L Vincent, and L R Ash, and S P Frommes
Comparative susceptibility of species A, B and C of Anopheles quadrimaculatus complex to infection with subperiodic Brugia malayi and Brugia pahangi (Nematoda: Filarioidea).
March 1992, Journal of the American Mosquito Control Association,
A L Vincent, and L R Ash, and S P Frommes
Histology of adult Brugia malayi.
September 1986, Tropical medicine and parasitology : official organ of Deutsche Tropenmedizinische Gesellschaft and of Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ),
Copied contents to your clipboard!