Exam 1 Terms Flashcards
Hyphae
A branch of a mycelium
Mycelium
The hypha or mass of hypha that make up the body of a fungus
Oospores
Sexual spores produced by the union of two morphologically different gametangia (oogonium and antheridium)
Sporangium
A container or case of asexual spores. In some cases it functions as a single spore.
Sporangiophore
A specialized hypha bearing one or more sporangia.
Zoospore
A motile spore.
Appressorium
The swollen tip of a hypha or germ tube that facilitates attachment and penetration of the host by a fungus.
Haustorium
A simple or branched projection of hyphae into host cells that attacks a hosting organ.
Penetration peg
A hyphae protruding from an appresorium that penetrates into the host.
Zygospore
The sexual or resting spore of zygomycetes produced by the fusion of two morphologically similar gametangia.
Encysted zoospore
A zoospore that has retracted it’s flagella into a survival structure.
Antheridium
The male sexual organ found in some fungi and oomycetes.
Oogonium
The female gametangium of oomycetes containing one or more gamates.
Plasmodium
A naked, slimy mass of protoplasm containing numerous nuclei.
Oomycete
A fungus like chromistan that produces oospores, water mold.
Plasmodiophoromycete
A class of protists that are parasites of plants.
Myxomycete
Slime Mold
Chytridiomycete
Chytridiomycetes is a class of fungi. Members are found in soil, fresh water, and saline estuaries. They are primitive fungi. Have motile spores and no septa.
Zygomycete
Ceocytic fungi.
Zygospore
Sexual resting spore or Zygomycetes.
Ascomycete
Sac fungi
Ascospore
A sexually produced spore borne in an ascus.
Ascus
A sac like cell of a hypha in which meiosis and occurs and that contains ascospores.
Ascocarp
Reproductive sturcture of ascomycetes.
Chasmothecium
Spherical ascocarp
Perithecium
Flask shaped ascocarp
Apothecium
Cup shaped ascocarp
Naked Asci
Asci that are not contained within an ascocarp.
Conidia
Asexual fungal spore formed at the end of a conidiophore.
Conidiophore
A specialized fungal hyphae that bears conidia
Sporocarps
The reproductive structure of Deutromycetes
Pycnidium
Flask shaped sporocarp
Acervulus (and setae)
A subepidermal, saucer shaped, asexual fruiting body that produces conidia
Sporodochium
A fruiting structure consisting of a cluster of conidiophores woven together in a mass of hyphae.
Synnema
A synnema is a large, erect reproductive structure borne by some fungi, bearing compact conidiophores, which fuse together to form a strand resembling a stalk of wheat, with conidia at the end or on the edges.
Sclerotia
A compact mass of hyphae with or without host tissue, usually with a darkened rind, and capable of surviving under unfavorable conditions
Microsclerotia
Microscopic sized sclerotia
Chlamydospore
A thick-walled asexual spore formed by the modifications of a cell of a fungus hyphae
Coffin Ship
Ships that the Irish died on waiting to get into the US
Black ‘47
The year in which the most deaths happened during the Irish Potato Famine
Anastamosis
Hyphal fusion resulting in the intercommunication of their genetic material
Vegetative Compatibility Groups
Heterothallic or homothallic
Tylosis
An overgrowth of the protoplast of a parenchyma cell into an adjacent xylem vessel or a tracheid.
Clamp Connections
A mechanism used to maintain the dikaryotic state of some fungi
Basidium
A club shaped structure on which basidiospores are borne
Basidiospores
A sexually produced spore borne on a basidium
Sterigmata
A slender protrubance on a basidium that supports the basidiospore.
Basidiocarp
The structure bearing basidia
Rust
A disease giving a “rusty” appearance to a plant and caused by one of the Uredinales
Smut
A diseased caused by smut fungi (Ustilaginales) characterized by masses of dark, powdery, and sometimes odorous spores
Uredium
The fruiting structure of rust fungi in which the uredospores are produced.
Urediospores
Asexual Rust spores that infect the host on which they are produced.
Telium
The fruiting structure in which rust teliospores are produced
Teliospores
The sexual, thick walled resting spore of rusts and smuts
Aecium
A cup shaped fruiting body of rust fungi that produces aeciospores
Aeciospores
Spores produced within an Aecium
Spermagonium
A fruiting body of rust fungi in which gametes or gametangia are produced.
Spermatia
The male gamete of rust fungi
White Rot
Break down lignins
Brown Rot
Break down hemicellulose and cellulose
Rugosity
Mis-shappen growth of leaves due to usually a plant virus.