PMID: 2510558Aug 1, 1989Paper

Recent advances in the knowledge of the biology of the cyst-forming coccidia

Angewandte Parasitologie
M Rommel

Abstract

A review is given on recent knowledge of the genera Caryospora, Isospora, Cystoisospora, Hammondia, Toxoplasma, Besnoitia, Sarcocystis and Frenkelia. Caryospora hitherto considered to be monoxenous was found to have an optional intermediate host. Many Isospora species had to be transferred to the genus Cystoisospora because optional intermediate hosts were discovered. The obligatory two-host genus Hammondia could be confirmed to be distinct from the genus Toxoplasma. Even though the life cycles of Besnoitia wallacei and B. darlingi could be elucidated, the mode of transmission of B. besnoiti which is of considerable economic importance is still unknown. Since the discovery of the life cycle of the sarcosporidia in 1972 more than 600 papers have been published on this parasite. At present, 122 Sarcocystis species are named, and of 56 species both the definitive and intermediate hosts are known. It was shown that not only carnivorous and omnivorous mammals but also birds of prey, owls, and reptiles are definitive hosts of Sarcocystis species. the close relationship between the genera Sarcocystis and Frenkelia was confirmed by several investigators. Biology and Sarcocystis are of special interest. In the developmental cycle of mos...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.