edgepedia

Life and health

72,234 articles

Cyclosorus

Cyclosorus Link, also synonymized under Thelypteris, is a small pantropical fern genus in Thelypteridaceae published in 1833, with x=36, veins uniting below the sinus, and the widespread species C. interruptus.

Cyclosorus interruptus

Cyclosorus interruptus (Willd.) H.Itô, swamp shield-fern or neke fern, synonym Thelypteris interrupta, is a pantropical Thelypteridaceae fern of freshwater swamps with long-creeping black rhizomes, red blade glands, and IUCN Least Concern status.

Cyclosporiasis

Cyclosporiasis is an intestinal infection caused by the parasite Cyclospora cayetanensis, which causes watery diarrhea lasting weeks if untreated and spreads through contaminated food, especially fresh produce.

Cyclotella

Cyclotella is a genus of centric diatoms, single-celled algae with silica cell walls, common in the phytoplankton of lakes and widely used as an indicator of lake environmental change.

Cyclothiazide

Cyclothiazide (Anhydron, Fluidil), a thiazide diuretic first approved in 1963, treats hypertension and edema via distal tubule Na-Cl transport inhibition, and is widely used in neuroscience as an AMPA receptor desensitization blocker.

Cyclothymia

Cyclothymia (cyclothymic disorder) is a chronic bipolar-spectrum mood disorder with recurrent hypomanic and depressive symptoms below full episode thresholds for at least 2 years, with no more than 2 symptom-free months.

Cyclotide

Cyclotides are plant peptides of about 30 amino acids with a head-to-tail cyclic backbone and a cyclic cystine knot of three disulfides. First found as kalata B1 from Oldenlandia affinis; named in 1999; subfamilies bracelet, Mobius, trypsin inhibitor.

Cycloxydim

Cycloxydim (CAS 101205-02-1) is a systemic, post-emergence cyclohexanedione (DIM) herbicide inhibiting ACCase, used to control annual and perennial grass weeds in broadleaf crops such as oilseed rape, sugar beet, potatoes, and beans; EU-approved since 1 June 2011, sold by BASF as Focus.

Cyclura

Cyclura (rock iguanas, ground iguanas) is a genus of large herbivorous iguanid lizards endemic to West Indian islands, from the Bahamas to the Greater Antilles; among the world's most threatened reptile genera, threatened chiefly by introduced predators.

Cycluron

Cycluron (3-cyclooctyl-1,1-dimethylurea, CAS 2163-69-1) is an obsolete BASF urea herbicide introduced 1958 in Alipur with chlorbufam for pre-emergence weed control; not EU approved, moderately mobile and persistent in soil.

Cycrimine

Cycrimine (Pagitane) is a discontinued synthetic piperidine central anticholinergic, a muscarinic M1 antagonist once marketed by Eli Lilly as 1.25 and 2.5 mg tablets for Parkinson's disease.

Cydippida

Cydippida (Gegenbaur, 1856) is an order of tentaculate comb jellies (phylum Ctenophora) with oval bodies under 3 cm and two colloblast-bearing retractile tentacles. Molecular phylogenies show the order is polyphyletic, with a cydippid-like form ancestral to other ctenophore orders.

Cydnidae

Cydnidae (burrower bugs, burrowing bugs) is a pentatomoid true bug family with over 144 genera and 1,185 species, fossorial root-feeding insects with spiny tibiae; its classification and monophyly remain disputed.

CYDS IV trial

The CYDS IV trial is the fourth phase of the Community Youth Development Study, a University of Washington trial testing the Communities That Care prevention system's long-term effects.

Cyenopyrafen

Cyenopyrafen (NC-512, Starmite) is a pyrazole beta-ketonitrile proacaricide, IRAC group 25A mitochondrial complex II inhibitor, developed by Nissan Chemical, registered 2008 in Japan, not EU-approved, with P450-mediated resistance in Tetranychus urticae.

Cyflufenamid

Cyflufenamid (NF-149) is a benzamidoxime fungicide by Nippon Soda for powdery mildew control on cereals, cucurbits, and fruit; FRAC U06, unknown mode of action, registered in Japan 2002 and the US 2012.

Cyflumetofen

Cyflumetofen (CAS 400882-07-7) is a beta-ketonitrile acaricide, IRAC group 25A, inhibiting mitochondrial complex II; sold as Nealta, Sultan, Danisaraba; EPA-registered 2014; resistance via sdhB H146Q.

Cyfluthrin

Cyfluthrin (CAS 68359-37-5) is a synthetic pyrethroid insecticide, US-registered since 1987; beta-cyfluthrin enriches its two most active isomers. Used in agriculture, homes, and mosquito nets; not EU-approved for crops but approved as a biocide.

Cygnus columbianus

Cygnus columbianus, the tundra swan (whistling swan; Bewick's swan, C. c. bewickii), is a Holarctic swan breeding on Arctic tundra and wintering on US coasts, Europe, and east Asia; IUCN Least Concern, 221,000–234,000 mature individuals.

Cygnus cygnus

Cygnus cygnus, the Whooper Swan (Singschwan, cygne chanteur), a large migratory Eurasian swan with a yellow bill wedge; IUCN Least Concern, about 176,000 mature individuals, increasing, wintering in Britain, Ireland, and East Asia.

Cyhexatin

Cyhexatin (tricyclohexylhydroxystannane, Plictran) is an organotin acaricide for mites on fruit and nut crops, first commercialized broadly in 1972 and withdrawn worldwide from 1987 after teratogenicity findings.

CYLD

CYLD (CYLD lysine 63 deubiquitinase, OMIM 605018) is a tumor-suppressor gene on 16q12.1 encoding a deubiquitinase that cleaves K63- and Met1-linked polyubiquitin to restrain NF-κB, Wnt, and JNK signaling; germline mutations cause CYLD cutaneous syndrome.

Cylicin

Cylicins (Cylicin 1/CYLC1, Cylicin 2/CYLC2) are highly basic, testis-specific cytoskeletal proteins of the sperm calyx in the perinuclear theca; their loss causes sperm head malformations and male infertility in mice and humans.

Cylindrospermopsis

Cylindrospermopsis, now Raphidiopsis, is a form-genus of Nostocales cyanobacteria with thin trichomes, terminal heterocysts, and cylindrical akinetes; its type species C. raciborskii is an invasive, cylindrospermopsin- or saxitoxin-producing bloom former.

Cylindrospermopsis raciborskii

Cylindrospermopsis raciborskii, now Raphidiopsis raciborskii, is a filamentous, nitrogen-fixing freshwater cyanobacterium that blooms in lakes and reservoirs and produces the toxins cylindrospermopsin or saxitoxin, having spread from tropical waters to every continent except Antarctica.

Cylindroteuthis

Cylindroteuthis is an extinct genus of squid-like belemnites of the family Cylindroteuthididae, typical of northern Jurassic and Early Cretaceous seas, first appearing in the Upper Bajocian of Siberia.

Cylindrotomidae

Cylindrotomidae, the cylindrotomid crane flies, is a small family of Tipuloidea (Diptera) with 97 species in two subfamilies, Cylindrotominae and Stibadocerinae, defined by a trifid aedeagus, loss of wing vein R3, and phytophagous larvae, sister to Tipulidae.

Cymbalaria

Cymbalaria (ivy-leaved toadflaxes, Kenilworth ivy) is a Plantaginaceae genus of about 9 to 17 Mediterranean perennial species of walls and cliffs, originating ca. 4 Ma, with C. muralis widely naturalized.

Cymbidium

Cymbidium, orchid genus described by Olof Swartz in 1799, with 92 accepted species native from tropical and subtropical Asia to Australia; cool-growing, pseudobulbous epiphytes flowering late autumn to spring, originating in the early Miocene near Indo-Burma.

Cymbidium mosaic virus

Cymbidium mosaic virus (CymMV, Cymbidium mosaic potexvirus, Potexvirus cymbidii) is a potexvirus of orchids, first recorded in California in 1950, with a ~6,200-nt ssRNA genome, mechanical sap transmission, no vector, and no cure for infected plants.