It was used 14-day old urediniospores
produced on leaves of potted 'Niagara Rosada' plants, as inocula.
were globose, echinulate, 24.9 [+ or -] 2.7 [micro]m in diameter, with 3 equatorial pores and 1.5 to 2.0 [micro]m thick cinnamon walls.
Six-day-old seedlings were sprayed, four pots at a time, with 0.5 mL (total volume) urediniospore
suspension on a rotating turntable.
subglobose or ovoid, yellowish brown, 12-18 x 16-26 um; wall densely echinulate, germ pores 2-4,scattered.
([double dagger]) Units are on a scale of 0 = no uredinia, 1 = chlorotic flecks, 2 = small uredinia surrounded by necrosis with limited urediniospore
production, 3 = medium size uredinia with moderate sporulation, and 4 = large uredinia and abundant sporulation.
stored in evacuated glass tubes in liquid N were heat-shocked at 40 [degrees] C for 10 min and increased in the greenhouse by inoculating plants of the susceptible oat cultivar, Markton.
tritici pathotype QCCJ at the early jointing stage by injecting an aqueous suspension of urediniospores
into the hollow culm of plants chosen at random at [appproximately equals] 0.75-m intervals along each spreader row.
globose to ellipsoid, light brown, wall chestnut brown, 20-32.5 x 22.5-32.5 um, wall 1.5-2.5 um thick, echinulate, germ pores-3.
Survival of dispersed urediniospores
of Tranzschelia discolor Fckl.(Tranz&Litv) on leaves of Prunus domestica L.
Uredinia are observed initially in the dark dots that progressively acquire a light brown to red brown color and open in a minute pore releasing the colorless urediniospores
, which become tan and accumulate around the pores (Balardin, 2002; Yorinori et al., 2004; Almeida et al., 2005).