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Trichoderma paraviridescens # 13
Trichoderma paraviridescens #13, EU ID 1577, is a non-approved fungal active substance (category OT) in the EU Pesticides Database, RMS Denmark, with a 0.01 mg/kg default MRL; the species was described by Jaklitsch, Samuels & Voglmayr in 2013.
Trichodesmium
Trichodesmium, a genus of non-heterocystous filamentous marine cyanobacteria (Oscillatoriales, Microcoleaceae), fixes atmospheric nitrogen in daylight in tropical and subtropical oceans, contributing an estimated 60-80 Tg N annually.
Trichodiene synthase
Trichodiene synthase (EC 4.2.3.6, Tri5, sesquiterpene cyclase) is the fungal terpenoid cyclase converting farnesyl diphosphate to trichodiene, precursor of trichothecene mycotoxins; structurally defined from Fusarium sporotrichioides.
Trichofolliculoma
Trichofolliculoma is a rare benign hair follicle hamartoma, usually a flesh-colored facial papule with a central pore and vellus hairs; histology shows a dilated central follicle with radiating secondary follicles, and prognosis is excellent.
Trichogen cell
A trichogen cell, also called the shaft or bristle cell, is an insect epidermal cell that secretes the cuticular hair, bristle, peg, or scale of a sensillum.
Trichoglossus
Trichoglossus (Island Lories) is a genus of brush-tongued lorikeet parrots in tribe Loriini, Australasian nectar and pollen feeders including the rainbow lorikeet T. haematodus, expanded by 2024 AviList mergers of Saudareos and Eos.
Trichogramma
Trichogramma: genus of about 145 species of minute (under 1 mm) egg-parasitoid wasps used worldwide for inundative biological control of lepidopteran pests such as corn borers; mass-reared on Sitotroga and Ephestia eggs.
Trichogramma japonicum
Trichogramma japonicum (Ashmead, 1904) is a minute egg-parasitoid wasp mass-reared and released against rice stem borers, especially yellow stem borer, in China and India; releases of 100,000–300,000 wasps/ha, factitious-host rearing, 2025 genome.
Trichogrammatid life history and host relations
Trichogrammatid life history and host relations describes how Trichogrammatidae, minute wasps 0.2 to 1.5 mm long, develop inside insect eggs and how females find and choose hosts.
Trichogrammatidae
Trichogrammatidae: minute (0.2–1.5 mm) chalcidoid egg-parasitoid wasps, ~800 species in ~84 genera, with three-segmented tarsi; genus Trichogramma is the world's most widely used augmentative biological control agent against moth pests.
Trichohepatoenteric syndrome
Trichohepatoenteric syndrome (THES, syndromic diarrhea, SD/THE) is a rare autosomal recessive enteropathy from SKIV2L or TTC37 mutations, causing neonatal intractable diarrhea, woolly hair, facial dysmorphism, liver disease, immunodeficiency, and up to 50% mortality.
Trichohyalin
Trichohyalin (TCHH gene, chromosome 1) is a 220 kDa S100 fused-type protein of hair follicle inner root sheath and medulla, cross-linked by TGase 3 to keratin filaments; TCHH variants affect hair shape and cause uncombable hair syndrome.
Tricholoma
Tricholoma (Fr.) Staude, 1857, a genus of ectomycorrhizal agaric fungi in Tricholomataceae with over 300 species, including matsutake (T. matsutake) and the toxicologically debated T. equestre; four subgenera and eleven sections per 2023 phylogeny.
Tricholoma equestre
Tricholoma equestre, the yellow knight or man on horseback (syn. T. flavovirens), is a pine-associated ectomycorrhizal mushroom once prized as food, disputed as toxic after French rhabdomyolysis cases, though no toxin has been identified.
Tricholomataceae
Tricholomataceae (R. Heim ex Pouzar) is a mushroom-forming fungal family in Agaricales, suborder Tricholomatineae, type genus Tricholoma; once 98 genera, now reduced to a small monophyletic core including matsutake species.
Trichomanes
Trichomanes is a mainly Neotropical genus of filmy ferns (Hymenophyllaceae), type T. crispum, published 1753, with tubular sori, chromosome base number x = 32, and a narrow modern circumscription after molecular splitting of Trichomanes s.l. into eight genera.
Trichome
Trichome: hair-like epidermal outgrowth on aerial plant parts, also called plant hairs; glandular or non-glandular, unicellular or multicellular. Found on most terrestrial plants; defend against herbivores and UV, and glandular types make essential oils and artemisinin.
Trichomegaly-retina pigmentary degeneration-dwarfism syndrome
Trichomegaly-retina pigmentary degeneration-dwarfism syndrome, or Oliver-McFarlane syndrome (OMCS, OMIM 275400), is an extremely rare autosomal recessive PNPLA6 disorder with trichomegaly, chorioretinal atrophy, hypopituitarism, short stature, and intellectual disability.
Trichomonas
Trichomonas, chiefly Trichomonas vaginalis, is a flagellated protozoan parasite causing trichomoniasis, the most prevalent nonviral STI worldwide, with about 156 million new cases in 2020, treated with metronidazole or tinidazole.
Trichomonas vaginalis
Trichomonas vaginalis, a flagellated protozoan parasite, causes trichomoniasis, the most common non-viral STI worldwide; about 156 million new cases in 2020, diagnosed by NAAT, treated with metronidazole.
Trichomoniasis
Trichomoniasis, caused by the protozoan Trichomonas vaginalis, is the most common non-viral STI worldwide, with about 156 million new cases in 2020; treated with metronidazole or tinidazole, linked to HIV risk and preterm birth.
Trichomonosis (woah trichomonosis)
Trichomonosis, also known as trichomoniasis, is a sexually transmitted disease of cattle caused by the flagellated protozoan Tritrichomonas fetus, which is asymptomatic in bulls but causes infertility, abortion, and fetal death in cows.
Trichonephila clavata
Trichonephila clavata, the Jorō spider (joro-gumo), a large golden orb-weaver native to East Asia, introduced to Georgia around 2014, with extreme female-biased size dimorphism and rapidly spreading in the southeastern US.
Trichonephila plumipes
Trichonephila plumipes, the Humped Golden Orb-Weaving Spider (formerly Nephila plumipes), is an Australian and western Pacific orb-weaving spider in Araneidae, known for ~1 m golden orb webs with stay lines up to 6 m, a sternum knob distinguishing it from T. edulis, and tiny males on web edges.
Trichophyton
Trichophyton, genus of keratin-degrading dermatophyte fungi (Arthrodermataceae) causing tinea; key species T. rubrum, T. mentagrophytes, and the terbinafine-resistant emerging pathogen T. indotineae.
Trichoplax
Trichoplax, type species Trichoplax adhaerens, is the tiny ciliated marine animal of the phylum Placozoa: a 2–3 mm flat plate with no neurons, muscles, or ECM, a ~98 Mb genome, and external digestion of algae.
Trichorhinophalangeal syndrome type 1
Trichorhinophalangeal syndrome type 1, or Sugio-Kajii syndrome, is a rare genetic disorder marked by sparse hair, a bulbous nose, cone-shaped finger bones, thin nails, and short stature.
Trichorhinophalangeal syndrome type 2
Trichorhinophalangeal syndrome type 2 (TRPS II, Langer-Giedion syndrome): rare autosomal dominant contiguous gene deletion of TRPS1, RAD21, EXT1 at 8q23.3-q24.11, causing short stature, sparse hair, distinctive face, cone-shaped epiphyses, multiple osteochondromas, and mild intellectual disability.
Trichoscopy
Trichoscopy is dermoscopic imaging of the hair and scalp, a noninvasive, low-cost technique for diagnosing hair loss and scalp disease by magnifying hair shafts, follicular openings, and blood vessels.
Trichosporon
Trichosporon (Behrend, 1890) is a basidiomycetous yeast genus with arthroconidia, causing white piedra and invasive trichosporonosis; T. asahii is the main pathogen, echinocandin-resistant, triazole-treated.