uredospore


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uredospore

[yu̇′red·ə‚spȯr]
(mycology)
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It is considered as a new species since the uredospores present the wall of uniform thickness, dense and strongly equinulated, with equinules up to 2.5[micron]m in height and has 2 germinal pores, mostly supra-equatorial with[micron]mbos on the sides and teliospores 50-80 x 20-30 [micron]m.
Parasitism of uredospores of Melampsora larici-populina Kleb.
The pathogen was maintained as single spore derived culture by inoculating 10 mg of uredospores (6 x [10.sup.5]) suspended in petroleum spirit and mineral oil (70: 30) on the brown rust susceptible genotype, 'Agra Local'.
The spores (uredospores) are produced on the upper surface of the leaf in the pustules relatively in huge number.
Although in temperate climates peach rust fungi are often present as several spore states (uredospores, teliospores, basidiospores and aeciospores), uredospores are the main type of inoculum found in Brazil and commonly overwinters in cankers and branches and produce the primary inoculum for epidemics in the following crop season.
pachyrhizi suspension (6 x [10.sup.5] uredospores x m[L.sup.-1]), and collected at 12, 24, and 48 hours after inoculation.