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The only genus in the family ARENAVIRIDAE. It contains two groups ARENAVIRUSES, OLD WORLD and ARENAVIRUSES, NEW WORLD, which are distinguished by ant…

One of two groups of viruses in the ARENAVIRUS genus and considered part of the New World complex. It includes JUNIN VIRUS; PICHINDE VIRUS; Amapari v…

One of two groups of viruses in the ARENAVIRUS genus and considered part of the Old World complex. It includes LASSA VIRUS and LYMPHOCYTIC CHORIOMENI…

A genus of softbacked TICKS in the family ARGASIDAE. Most infect birds or bats but a few parasitize terrestrial mammals.

A family of softbacked TICKS, in the subclass ACARI. Genera include ARGAS and ORNITHODOROS among others.

A plant genus of the family PAPAVERACEAE that contains isoquinoline alkaloids.

An order of CRUSTACEA that are parasitic on freshwater fish.

A plant genus of the family ARACEAE. It has a stemless, tuberous root.

A plant genus of the family ARISTOLOCHIACEAE. Species of this genus have been used in traditional medicine but they contain aristolochic acid which i…

A plant family of the order Aristolochiales subclass Magnoliidae class Magnoliopsida. They are mostly tropical woody vines and a few temperate-zone s…

Burrowing, chiefly nocturnal mammals of the family Dasypodidae having bodies and heads encased in small bony plates. They are widely distributed in t…

A genus of root and butt rot fungi in the family Tricholomataceae that produce rhizomorphs and are facultatively parasitic. Many species are pathogen…

A plant genus of the family BRASSICACEAE known for the root used in hot SPICES. It is also the source of HORSERADISH PEROXIDASE which is widely used …

A plant genus of the family ASTERACEAE. The dried flower heads of Arnica montana are used externally as a counterirritant and tincture for sprains an…

A genus of CRUSTACEA of the order ANOSTRACA, found in briny pools and lakes and often cultured for fish food. It has 168 chromosomes and differs from…

A plant genus of the family ASTERACEAE with strong-smelling foliage. It is a source of SANTONIN and other cytotoxic TERPENES.

A plant species of the genus ARTEMISIA, family ASTERACEAE that has been used in ABSINTHE. The oil contains neurotoxic 1-thujone and d-isothujone.

A plant species of the genus ARTEMISIA, family ASTERACEAE. It is the source of the antimalarial artemisinin (ANTIMALARIALS).

A family of viruses, of the order NIDOVIRALES, containing spherical virions. In contrast to CORONAVIRIDAE, no protruding spikes are obvious on the su…

A genus of the family ARTERIVIRIDAE, in the order NIDOVIRALES. The type species is EQUARTEVIRUS.

A species of LENTIVIRUS, subgenus ovine-caprine lentiviruses (LENTIVIRUSES, OVINE-CAPRINE), closely related to VISNA-MAEDI VIRUS and causing acute en…

A genus of asporogenous bacteria isolated from soil that displays a distinctive rod-coccus growth cycle.

A family of ascomycetous fungi, order Onygenales, characterized by smooth ascospores. Genera in the family include Arthroderma, Keratinomyces, and Ct…

Members of the phylum Arthropoda, composed of organisms having a hard, jointed exoskeleton and paired jointed legs. It includes the class INSECTS and…

An order of mammals which consists of the even-toed ungulates and includes both RUMINANTS and SWINE.

A plant genus of the family MORACEAE. Puag-haad extract, from A. lakoocha, contains STILBENES and related 4-substituted RESORCINOLS.

A plant genus of the family ARACEAE. The name derived from ar (fire in Arabic) due to the irritating sap. Flower is a spathe.

A subfamily of MURIDAE found nearly world-wide and consisting of about 20 genera. Voles, lemmings, and muskrats are members.

A plant genus of the family ARISTOLOCHIACEAE which was used medicinally by North American Indians. The common name of 'snakeroot' is also used for ma…

A genus of nematode worms in the superfamily Heterakoidea. A. galli and A. lineata are important intestinal parasites of domestic fowl.