Basidiomycota-Urediniomycetes-Puccinia

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The life cycle of wheat rust, Puccinia graminis

The life cycle of wheat rust, Puccinia graminis

teliospore: thick-walled resting spore produced by some fungi, notably rust and smut fungi, from which the basidium is produced (Puccinia teliospores)

Telia on wheat plants and Teliospores of Puccinia graminis f. Note dark color and thick cell walls.

pycniospore (syn. spermatium): haploid, sexually derived spore formed in a pycnium of rust fungi (SEM of pycnium containing pycniospores)

spermagonium) : globose or flask-shaped haploid fruiting body of rust fungi bearing receptive hyphae and pycniospores (SEM)

pustule: small blisterlike elevation of epidermis formed as spores emerge (pustules of wheat stem rust urediniospores)

pustule: small blisterlike elevation of epidermis formed as spores emerge (pustules of wheat stem rust urediniospores)

Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. E. Henn. life Cycle

Stem rust Stem rust was once the most feared disease of cereal crops.

Rose Rust (Phragmidium mucronatum)

Rose Rust (Phragmidium mucronatum)

uredinium (also uredium; pl. uredinia): fruiting body (sorus) of rust fungi that produces urediniospores (left: uredinia of Puccinia graminia f. sp. tritici; right: SEM of single uredinium of Puccinia recondita)

uredinium (also uredium; uredinia): fruiting body (sorus) of rust fungi that produces urediniospores (left: uredinia of Puccinia graminia f. right: SEM of single uredinium of Puccinia recondita)

urediniospore (also urediospore, uredospore)  : the asexual, dikaryotic, often rusty-colored spore of a rust fungus, produced in a structure called a uredinium; the "repeating stage" of a heteroecious rust fungus, i.e. capable of infecting the host plant on which it is produced (Puccinia graminis)

urediniospore (also urediospore, uredospore) : the asexual, dikaryotic, often rusty-colored spore of a rust fungus, produced in a structure called a uredinium; the "repeating stage" of a heteroecious rust fungus, i.e. capable of infecting the host plant on which it is produced (Puccinia graminis)

telium (pl. telia): fruiting body (sorus) of a rust fungus that produces teliospores (Puccinia telia)

telia): fruiting body (sorus) of a rust fungus that produces teliospores (Puccinia telia)

promycelium (pl. promycelia): in rust and smut fungi, a germ tube issuing from the teliospore and bearing the basidiospores (germinating teliospore of Puccinia pampeana

promycelia): in rust and smut fungi, a germ tube issuing from the teliospore and bearing the basidiospores (germinating teliospore of Puccinia pampeana

yellow-rust-life-cycle

yellow-rust-life-cycle

white rust.Chrysanthemum white rust is a disease of plants caused by the fungus Puccinia horiana

Chrysanthemum white rust is a disease of plants caused by the fungus Puccinia horiana

Raspberry rust (Phragmidium rubi-idaei) orange pustules on raspberry leaf lower surface.

Raspberry rust (Phragmidium rubi-idaei) orange pustules on raspberry leaf lower surface.

Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. E. Henn. Life Cicle

Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. E. Henn. Life Cicle

wheat rust life cycle

wheat rust life cycle

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