Shared Flashcard Set

Details

Fungal Biology Glossary of Terms
Fungal Biology Glossary of Terms
258
Biochemistry
Undergraduate 1
07/06/2015

Additional Biochemistry Flashcards

 


 

Cards

Term
Acervulus(i)
Definition
A mat of hyphae bearing short conidiophores packed closely together.
Term
Achlorophyllous
Definition
Lacking chlorophyll.
Term
Acrogenous
Definition
Conidia born at the tip of the conidiophore.
Term
Acropetal
Definition
A chain of conidia in which the youngest conidium is at the tip and the oldest is at the base.
Term
Acropleurogenous
Definition
Conidia developing at the tip and along the sides of the conidiophore.
Term
Adiaconidia
Definition
A large, globose, thick-walled conidium, usually produced by Emmonsia (Chrysosporium) parvum, in the lungs of humans and animals.
Term
Aerial mycelium
Definition
Hyphal elements growing above the agar surface.
Term
Aflatoxins
Definition
A group of carcinogenic mycotoxins produced by some species of Aspergillus.
Term
Agaric
Definition
Common name for any member of the order Agaricales (Basidiomycota).
Term
Aleurioconidium (pl. aleurioconidia)
Definition
A thallic conidium released by lysis or fracture of the supporting cell.
Term
Ameroconidium (pl. ameroconidium)
Definition
A one-celled conidium.
Term
Anamorph
Definition
An asexual state of a fungus.
Term
Anastomosis
Definition
Fusion between hyphae.
Term
Annellide
Definition
A specialized conidiogenous cell producing conidia in basipetal succession by a series of short percurrent proliferations (annellations). The tip of an annellide increases in length and becomes narrower as each subsequent conidium is formed.
Term
Annelloconidium (pl. annelloconidia)
Definition
A conidium produced by an annellide.
Term
Antheridium(a)
Definition
Male gametangium.
Term
Aplanospore
Definition
A non-motile spore.
Term
Apophysis
Definition
A swelling. The term is primarily applied to the funnel-shaped swelling of a sporangiophore, immediately below the columella, seen in some zygomycetes.
Term
Apothecium(a)
Definition
Open, cup-shaped ascocarp produced by some species belonging to the Ascomycota.
Term
Arbuscular mycorrhizas
Definition
Mycorrhizas formed by fungi belonging to the Glomeromycota.
Term
Arbuscules
Definition
Minute, tree-like hyphal branching structures produced within host plant cells by arbuscular mycorrhizal fungi.
Term
Arthric
Definition
A type of conidial ontogeny involving the conversion and subsequent disarticulation of a determinant conidiogenous hypha.
Term
Arthroconidium (pl. arthroconidia)
Definition
A thallic conidium released by either the splitting of a double septum or by the fragmentation or lysis of a disjunctor cell.
Term
Arthrospore
Definition
Asexual spore formed by the septation and fragmentation of a hypha.
Term
Ascocarp
Definition
Fruiting body of fungi belonging to the Ascomycota, bearing asci.
Term
Ascocarp
Definition
A fruiting body containing asci and ascospores.
Term
Ascogenous hypha(e)
Definition
A dikaryotic hypha emerging from an ascogonium after fertilization, which gives rise to asci in fungi belonging to the Ascomycota.
Term
Ascogonium(a)
Definition
Female gametangium in fungi of the Ascomycota, which contains cells that are fertilized during sexual reproduction.
Term
Ascomycetes
Definition
A group of fungi that reproduce sexually by the endogenous formation of ascospores in an ascus.
Term
Ascomycetous
Definition
Referring to the Ascomycetes.
Term
Ascospore
Definition
A haploid spore produced within an ascus following karyogamy and meiosis.
Term
Ascospores
Definition
Sexual spores of fungi belonging to the Ascomycota, borne in asci.
Term
Ascostroma(ta)
Definition
An ascocarp bearing asci directly in cavities within a compact mass of hyphae.
Term
Ascus (pl. asci)
Definition
A sac-like cell containing ascospores. Asci are characteristic of the Ascomycetes.
Term
Ascus(i)
Definition
Cell(s) containing ascospores in fungi of the Ascomycota.
Term
Aseptate
Definition
Lacking septa, often pertaining to the hyphae seen in zygomycetes (also see coenocytic).
Term
Asexual reproduction
Definition
Reproduction NOT involving karyogamy and meiosis.
Term
Ballistoconidium (pl. ballistoconidia)
Definition
A conidium that is forcible discharged.
Term
Basidiocarp
Definition
Fruiting body of fungi of the Basidiomycota, bearing basidia.
Term
Basidiomycetes
Definition
A group of fungi that reproduce sexually by the exogenous formation of basidiospores from a basidium.
Term
Basidiospore
Definition
A haploid spore produced on a basidium following karyogamy and meiosis.
Term
Basidiospores
Definition
Sexual spores of fungi belonging to the Basidiomycota.
Term
Basidium (pl. basidia)
Definition
A cell that gives rise to a basidiospore. Basidia are characteristic of the Basidiomycetes.
Term
Basidium(a)
Definition
Enlarged terminal cell of a hypha, bearing basidiospores.
Term
Basipetal
Definition
A chain of conidia, the oldest conidium is at the apex and the youngest is at the base.
Term
Basocatenulate
Definition
A chain of conidia having the youngest cell at the base.
Term
Bioremediation
Definition
The use of microorganisms to remove or detoxify toxic or unwanted chemicals in an environment.
Term
Biotrophic
Definition
Obtaining nutrients from living host cells without killing them.
Term
Bipolar budding
Definition
Blastoconidia developing at the opposite poles of a parent cell.
Term
Biseriate
Definition
Phialides arising from metulae as in the genus Aspergillus.
Term
Biverticillate
Definition
Two or rarely three levels of branching directly below the phialides as in the genus Penicillium.
Term
Blastic
Definition
A form of conidial development where there is a recognizable enlargement or "blowing out" of a conidial initial before being delimited by a septum.
Term
Blastic conidium
Definition
Conidium arising from a yeast cell or hypha as a result of elongation and swelling before separation by a septum.
Term
Blastocatenate
Definition
A chain of conidia having the youngest cell at the tip.
Term
Blastoconidium (pl. blastoconidia)
Definition
An asexual conidium that forms by a blowing out or budding process.
Term
Bud
Definition
A young conidium. Usually used to denote the young blastoconidia of yeasts.
Term
Budding
Definition
Asexual multiplication by the production of a small outgrowth or bud from a parent cell.
Term
Capsule
Definition
A hyaline mucopolysaccharide sheath around the cell wall of certain yeasts e.g. Cryptococcus and Rhodotorula.
Term
Catenulate
Definition
Conidia arranged in chains.
Term
Chemostat
Definition
Apparatus used in a continuous culture system.
Term
Chlamydoconidium (pl. Chlamydoconidia)
Definition
A thick-walled, thallic conidium formed within the vegetative hyphae. Chlamydoconidia function as organs of perennation rather than dissemination.
Term
Chlamydospore
Definition
Thick-walled, melanized thallic conidium that develops from an existing hyphal compartment and that functions as a resting spore.
Term
Clamp connection
Definition
A specialized hyphal bridge over a septum in the Basidiomycetes.
Term
Clavate
Definition
Club-shaped.
Term
Cleistothecium (pl. cleistothecia)
Definition
An enclosed ascocarp containing randomly dispersed asci.
Term
Cleistothecium(a)
Definition
A completely closed fruiting body formed by some fungi of the Ascomycota, containing asci.
Term
Coenocytic
Definition
Infrequently septate, multi-nucleate hyphae as in the Zygomycetes.
Term
Collarette
Definition
A small collar. Usually, a remnant of a cell wall present at the tip of a phialide, or around a sporangiophore.
Term
Colony
Definition
A group of individuals of the same species living in close association; for fungi, usually refers to a group of many yeast cells or a mycelium originating from a single point, cell or spore.
Term
Columella (pl. columellae)
Definition
A sterile dome-like structure at the tip of a sporangiophore or within a sporangium.
Term
Columella(e)
Definition
A curved cross-wall extending from the tip of a sporangiophore into the sporangium.
Term
Columnar
Definition
Forming a column.
Term
Conidiogenous cell
Definition
A cell that forms conidia.
Term
Conidiophore
Definition
A hypha giving rise to conidia.
Term
Conidiophore
Definition
A specialized hypha upon which conidia develop.
Term
Conidium (pl. conidia)
Definition
An asexual reproductive propagule formed in any manner that does not involve cytoplasmic cleavage. Conidia function as organs of dissemination.
Term
Conidium(a)
Definition
Asexual spore supported on a hypha, NOT contained in a sporangium.
Term
Coremium(a)
Definition
Structure of aggregated hyphae bearing conidia at their tips.
Term
Cottony
Definition
Having a loose and coarse texture.
Term
Cylindrical
Definition
Cylindric, having parallel walls and circular cross-section.
Term
Dematiaceous
Definition
A dark brown, greenish gray or black colour.
Term
Denticle
Definition
A small projection or peg on which conidia are produced.
Term
Dermatophyte
Definition
A fungus belonging to the genera Epidermophyton, Microsporum, or Trichophyton with the ability to utilize keratin to infect hair, nail and skin.
Term
Determinate conidiophore
Definition
The conidiophore does not alter in length after the formation of conidia.
Term
Deuteromycetes
Definition
An artificial subdivision to accommodate those fungi where only the asexual state is known.
Term
Dichotomous
Definition
A type of hyphal branching into two equal forks.
Term
Dictyoconidium (pl. dictyoconidia)
Definition
A conidium with both longitudinal and transverse septa; a muriform conidium.
Term
Didmoconidium (pl. didymoconidia)
Definition
A two celled conidium.
Term
Dikaryon
Definition
A hyphal compartment, mycelium or fungal cell occupied by a pair or pairs of closely associated, genetically different, sexually compatible nuclei.
Term
Dimorphic
Definition
Having two different morphological forms.
Term
Disjunctor cell
Definition
An empty cell that fragments and/or undergoes lysis to release a conidium.
Term
Dolipore septum
Definition
Septum with elaborate ultrastructure, found in fungi belonging to the Basidiomycota.
Term
Dolipore septum
Definition
A characteristic septum found in the Basidiomycetes that flares out near the pore to form an elongate channel.
Term
Double septum
Definition
A two layered septum that may undergo centripetal separation (schizolysis) to release a conidium.
Term
Downy
Definition
Having a short and dense mycelial texture.
Term
Dysgonic
Definition
A slow growing variant.
Term
Echinulate
Definition
Covered with delicate spines.
Term
Ectothrix
Definition
Natural hair invasion by a dermatophyte characterized by arthroconidia on the outside of the hair shaft.
Term
Effuse
Definition
Spread out, radiate.
Term
Elliptical
Definition
Oval, with a symmetric curve.
Term
Elongate
Definition
Lengthened.
Term
Encystment
Definition
Formation of a thick wall, e.g. around a zoospore after it settles and loses its flagellum(a).
Term
Endospore
Definition
A spore produced within a spherule.
Term
Endothrix
Definition
Natural hair invasion by a dermatophyte characterized by the development of arthroconidia within the hair shaft only.
Term
Erect
Definition
Upright.
Term
Evanescent
Definition
Disappearing.
Term
Extracellular enzyme
Definition
An enzyme whose action on a substrate takes place outside the cell's protoplasm.
Term
Exudate
Definition
Droplets of fluid formed on the surface of a colony.
Term
Fairy ring
Definition
A ring of mushrooms produced at the edge of an underground mycelium.
Term
Falcate
Definition
Curved like a sickle.
Term
Fertilization tube
Definition
A tube originating from the male gametangium and penetrating the female gametangium; through which the male gametes (nuclei) are transferred.
Term
Flexuous
Definition
Wavy.
Term
Floccose
Definition
Fluffy or cottony.
Term
Foot cell
Definition
A basal cell of a conidiophore as seen in Aspergillus and Fusarium.
Term
Fruit(ing) body
Definition
Large spore-bearing structure produced by species belonging to the Ascomycota and Basidiomycota.
Term
Fusiform
Definition
Spindle-shaped, tapering toward the end.
Term
Gametangium(a)
Definition
A structure specialized for the production of gametes during sexual reproduction.
Term
Geniculate
Definition
Bent like a knee.
Term
Germ tube
Definition
The initial hypha that develops from a conidium or spore.
Term
Germ-pore
Definition
A thinner area of spore wall through which a germ-tube emerges.
Term
Germ-tube
Definition
An immature hypha emerging from a spore.
Term
Glabrous
Definition
Smooth.
Term
Gloiospora
Definition
Conidia aggregated in slimy heads at the tip of an annellide or phialide.
Term
Guttulate
Definition
Containing one or more oil droplets.
Term
Gymnothecium (pl. gymnothecia)
Definition
A non-ostiolate ascocarp composed of loosely interwoven hyphae and containing randomly dispersed asci.
Term
Heterothallic
Definition
A fungus that requires mating between two compatible strains for sexual reproduction to occur.
Term
Heterothallism
Definition
The requirement for two compatible mating types for sexual reproduction; self-sterility.
Term
Hilum
Definition
A scar at the base of a conidium.
Term
Holoblastic
Definition
A mode of blastic conidium ontogeny in which all the cell wall layers of the conidiogenous cell are involved in conidium development.
Term
Holothallic
Definition
A mode of thallic conidium ontogeny in which all the cell wall layers of the conidiogenous cell are involved in conidium development.
Term
Homothallic
Definition
A fungus capable of sexual reproduction on a single thallus.
Term
Homothallism
Definition
A second mating type is NOT required for sexual reproduction; self-fertility.
Term
Hulle cells
Definition
Thick-walled cells with characteristic thin-walled pores, usually associated with cleistothecia of Aspergillus.
Term
Hyaline
Definition
Colourless.
Term
Hyalo-
Definition
A prefix meaning hyaline to lightly coloured.
Term
Hymenium(a)
Definition
The surface of a fruiting body on which sexually produced spores are borne in asci (Ascomycota) or on basidia (Basidiomycota).
Term
Hypha (pl. hyphae)
Definition
A single filament of a fungus.
Term
Hypha(e)
Definition
Filamentous structure which exhibits apical growth and which is the developmental unit of a mycelium.
Term
Hyphomycetes
Definition
A class of mycelial moulds which reproduce asexually by conidia on hyphae or aggregations of hyphae.
Term
Intercalary
Definition
Within a hyphal element.
Term
Isolate
Definition
A strain of a fungus brought into pure culture (i.e. isolated) from a specific environment.
Term
Jelly fungi
Definition
Term sometimes applied to the Tremellales (belonging to the Basidiomycota).
Term
Karyogamy
Definition
The fusion of nuclei, preceding the production of sexual spores.
Term
Lageniform
Definition
Flask-shaped.
Term
Lanceolate
Definition
Lance-shaped.
Term
Lanose
Definition
Woolly.
Term
Lateral
Definition
On the side.
Term
Lenticular
Definition
Shaped like a double convex lens.
Term
Lichen
Definition
A symbiotic association between green or blue-green algal cells and fungal hyphae.
Term
Macroconidium (pl. macroconidia)
Definition
The larger of two different types of conidia produced by a fungus in the same manner.
Term
Macronematous
Definition
Having a conidiophore that is morphologically different from the vegetative hyphae.
Term
Merosporangium (pl. merosporangia)
Definition
A small cylindrical sporangium with the sporangiospores aligned in a row.
Term
Metula (pl. Metulae)
Definition
A sterile cell below the phialides of some Aspergillus and Penicillium species.
Term
Microconidium (pl. microconidia)
Definition
The smaller of two different types of conidia produced by a fungus in the same manner.
Term
Micronematous
Definition
Having a conidiophore that is not morphologically different from the vegetative hyphae.
Term
Monokaryon
Definition
A hyphal compartment, mycelium or fungal cell occupied by nuclei of a single genotype.
Term
Mucoid
Definition
Sticky or slimy
Term
Multipolar budding
Definition
Blastoconidia developing at different sites on the surface of a parent cell.
Term
Multiseptate
Definition
Having several septa.
Term
Muriform
Definition
A conidium with both longitudinal and transverse septa.
Term
Mycelium (pl. mycelia)
Definition
The mass of hyphae making up the thallus of a fungus.
Term
Mycelium(a)
Definition
A branching network of hyphae.
Term
Mycobiont
Definition
The fungal component of a lichen.
Term
Mycology
Definition
The study of fungi.
Term
Mycoparasite
Definition
A fungus capable of parasitising another fungus.
Term
Mycoprotein
Definition
Protein of fungal origin, particularly from mycelial species.
Term
Mycorrhiza
Definition
A symbiotic association between a plant root and fungal hyphae.
Term
Mycotoxin
Definition
A general term for a toxin produced by a fungus.
Term
Myxamoeba
Definition
An amoeboid cell, particularly of the Myxomycota.
Term
Necrotroph
Definition
A fungus that kills the cells of a living host and then utilizes those cells as a source of nutrients.
Term
Niger
Definition
Black.
Term
Nonseptate
Definition
Without septa.
Term
Obclavate
Definition
Club-shaped in reverse; the distal region is smaller.
Term
Obpyriform
Definition
Pear-shaped in reverse; the distal region is larger.
Term
Oidium(a)
Definition
A form of asexual spore involved in bringing about dikaryotization in fungi belonging to the Basidiomycota.
Term
Olivaceous
Definition
Olive-grey colour.
Term
Oogonium(a)
Definition
A female gametangium.
Term
Oosphere
Definition
A female gamete within an oogonium.
Term
Oospore
Definition
A diploid spore produced by species belonging to the Oomycota.
Term
Ostiole
Definition
An opening or pore in an ascocarp or a pycnidium.
Term
Ovoid
Definition
Egg-shaped.
Term
Pectinate
Definition
Like the teeth of a comb.
Term
Pedicel
Definition
A slender stalk.
Term
Pellicle
Definition
A film-like or skin-like surface growth.
Term
Penicillus (pl. penicilli)
Definition
The brush-like conidiophore of Penicillium.
Term
Percurrent
Definition
Conidiogenous cell growth where a new axis grows through the previous apex.
Term
Peridium
Definition
The outer wall of an ascocarp.
Term
Perithecium (pl. perithecia)
Definition
An enclosed ascocarp characterized an apical ostiole and by asci arranged in a basal tuft or hymenium layer.
Term
Perithecium(a)
Definition
A flask-shaped fruiting-body produced by some species of the Ascomycota; from the neck of which asci are discharged.
Term
Phaeo-
Definition
A prefix meaning darkly pigmented.
Term
Phialide
Definition
A specialized conidiogenous cell that produces conidia in basipetal succession without increasing in length.
Term
Phialoconidium (pl. phialoconidia)
Definition
A conidium produced from a phialide.
Term
Photobiont
Definition
The algal component of a lichen.
Term
Phragmoconidium (pl. phragmoconidia)
Definition
A conidium having two or more transverse septa.
Term
Pileus
Definition
The cap of a mushroom.
Term
Pleomorphic
Definition
Having more than one form.
Term
Pleurogenous
Definition
Born on the sides of a conidiophore or hyphae.
Term
Poroconidium (pl. poroconidia)
Definition
A conidium produced through a small pore in a conidiogenous cell.
Term
Pseudohyphae
Definition
A string of elongated blastoconidia formed in some yeasts that resemble a hypha-like filament.
Term
Pycnidium (pl. pycnidia)
Definition
An asexual fruiting body containing conidia.
Term
Pycnidium(a)
Definition
A hollow, flask-shaped structure lined with conidiophores bearing conidia.
Term
Pyriform
Definition
Pear-shaped.
Term
Quorn
Definition
The commercial trademark for a range of food products containing mycoprotein.
Term
Rachis
Definition
An extension of a sympodial proliferating conidiogenous cell bearing conidia.
Term
Racquet hyphae
Definition
A hypha composed of a number of cells swollen at one end resembling a tennis racquet.
Term
Radial growth
Definition
Growth from the centre, e.g. of a fungal colony.
Term
Resting spore
Definition
A spore with prolonged survival potential, or a spore that is in a state of dormancy.
Term
Retrogressive conidial development
Definition
The conidiogenesis cell becomes shorter during the successive development of conidia.
Term
Rhizoid
Definition
A fine filamentous structure which grows into the substrate and anchors the cell or surface mycelium.
Term
Rhizoids
Definition
A short branching root-like hyphae seen in some Zygomycetes.
Term
Saprotrophic
Definition
Using dead organisms as a source of nutrients.
Term
Sclerotium (sclerotia)
Definition
A mass of thick-walled cells formed by the vegetative hyphae that function as an organ of perennation.
Term
Semimacronematous
Definition
Having a conidiophore that is only slightly morphologically different from the vegetative hyphae.
Term
Septum (pl. septa)
Definition
A cross wall in a hypha.
Term
Septum(a)
Definition
A cross-wall in a hypha.
Term
Sexual reproduction
Definition
Reproduction involving karyogamy and meiosis.
Term
Spinulose
Definition
Covered in small spines.
Term
Sporangiolum (pl. )
Definition
A small sporangium producing a small number of sporangiospores.
Term
Sporangiophore
Definition
A hypha which bears a sporangium
Term
Sporangiophore
Definition
A specialized hypha that bears a sporangium.
Term
Sporangiospore
Definition
An asexual spore borne in a sporangium.
Term
Sporangiospore
Definition
An asexual spore produced within a sporangium.
Term
Sporangium (pl. sporangia)
Definition
A sac-like structure producing asexual spores endogenously by cytoplasmic cleavage.
Term
Sporangium(a)
Definition
A specialized cell containing sporangiospores.
Term
Spore
Definition
a reproductive propagule formed by either meiosis or mitosis. However, if by asexual means, cleavage of cytoplasm is usually involved.
Term
Sporodochium (pl. sporodochia)
Definition
A cushion-shaped mass of hyphae bearing conidiophores.
Term
Stellate
Definition
Star-shaped
Term
Sterigma (pl. sterigmata)
Definition
A small pointed structure upon which a basidiospore forms.
Term
Sterigma(ta)
Definition
A small outgrowth which supports a sporangium, a conidium or a basidiospore.
Term
Stipe
Definition
The stalk of a mushroom or toadstool.
Term
Stolon
Definition
A running hypha from which rhizoids and sporangiospores arise.
Term
Striate
Definition
Having lines or minute furrows.
Term
Subglobose
Definition
Not quite round or spherical.
Term
Sympodial
Definition
A mode of conidiogenous cell growth which results in the development of conidia on a geniculate or zig-zag rachis.
Term
Synnema (pl. synnemata)
Definition
A group of erect conidiophores that are cemented together producing conidia at the apex and/or along the sides.
Term
Teleomorph
Definition
The sexual state of a fungus.
Term
Thallic
Definition
A mode of conidial ontogeny where a conidium is formed from a pre-existing hyphal segment or cell.
Term
Thallic conidia
Definition
Conidia formed as a result of the septation and fragmentation of a hypha.
Term
Toruloid
Definition
Having swellings at intervals.
Term
Trehalose
Definition
An oligosaccharide from some fungi.
Term
Trichogyne
Definition
The receptive hypha formed during sexual fertilization in fungi belonging to the Ascomycota.
Term
Truncate
Definition
Cut off sharply.
Term
Tuberculate
Definition
Having small wart-like structures.
Term
Uniserate
Definition
Phialides arising directly from a vesicle as in Aspergillus.
Term
Universal veil
Definition
A thin membrane covering certain types of young mushrooms; as the mushroom expands the veil tears and the remnants may form scales on the pileus and comprise the volva.
Term
Uredospores
Definition
Dikaryotic spores produced by rust fungi (Uredinales).
Term
Verrucose
Definition
Having many warts.
Term
Verticillate
Definition
Having branches arranged in verticils or whorls.
Term
Vesicle
Definition
A swollen cell.
Term
Volva
Definition
A cup at the base of the stipe of certain mushrooms; a remnant of the universal veil.
Term
Woronin body
Definition
An electron-opaque, spherical, membrane-bound proteinaceous structure found in hyphae of fungi belonging to the Ascomycota and some mitosporic species (formerly Deuteromycota), located near septa.
Term
Xerotolerant fungus
Definition
A fungus capable of growing on substrates possessing a low water potential, i.e. water activities below 0.85.
Term
Yeast
Definition
A unicellular fungus that multiplies asexually by budding or fission.
Term
Zoosporangium(a)
Definition
A specialized cell in which zoospores develop, and from which they are released.
Term
Zoospore
Definition
A motile sporangiospore capable of swimming in water by means of one or more flagella.
Term
Zygospore
Definition
A spore formed following fusion of two gametangia in fungi belonging to the Zygomycota.
Term
Zygospores
Definition
A thick-walled sexual spore formed by the fusion of two similar gametangia; characteristic of the Zygomycetes.
Term
Zygote
Definition
A diploid cell resulting from the union of two haploid cells followed by karyogamy.
Supporting users have an ad free experience!