Wheat brown rust

Wheat brown rust (Puccinia recondita )

Systematics:

  • Department: Basidiomycota (Basidiomycetes)
  • Subdivision: Pucciniomycotina
  • Class: Pucciniomycetes (Pucciniomycetes)
  • Subclass: Incertae sedis (undefined)
  • Order: Pucciniales (Rusty mushrooms)
  • Family: Pucciniaceae (Pucciniae)
  • Genus: Puccinia (Puccinia)
  • Species: Puccinia recondita (Wheat brown rust)

Puccinia recondita

Description: Wheat brown rust (Puccinia recondita) is a parasitic fungus that mainly affects wheat and other cereals. This fungus is a two-host parasite and has a full life cycle with five types of sporulation. In the vegetative phase, the fungus can exist in the form of eciospores, dikaryotic mycelium, urediniospores and teliospores. Telly and urediospores are specially adapted for wintering. In the spring they germinate and a basidium is formed with four basidiospores, which infect an intermediate host – hazel or basil. Spermatogonia develop on the leaves of the intermediate host, and after cross fertilization, eciospores are formed, which directly infect wheat.

Puccinia recondita

Distribution: This mushroom is widespread where wheat is grown. Therefore, no country is insured against the event of a massive crop destruction. Since in the northern regions and in Siberia, spores are not exposed to summer drought and heat, they will persist better, and the likelihood of crop disease increases significantly. At the same time, brown rust of wheat affects both winter and spring crops, as well as other types of cereals – fire, wheatgrass, wheatgrass, fescue, bluegrass. The fungus hibernates mainly in the form of mycelium in the leaves of winter wheat and wild cereals. When abundant morning dew appears, the spores begin to sprout en masse. The peak of fungus development occurs during the flowering period of cereals.

Puccinia recondita

Economic value: Brown rust causes significant damage to grain production in different countries. In Russia, the regions where this disease occurs most often are the Volga region, the Central Black Earth region and the North Caucasus region. Here, brown rust infects wheat almost every year. To effectively combat the causative agent of this disease in agricultural farms, specially bred varieties of wheat and cereals that are resistant to brown rust are widely used.

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Hunting, Fishing and Mushrooms: a magazine for hunters and fishers.
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