The spindle was not visible in the O and OB treatments, owing to the effect of oryzalin treatment, but polykaryocytes
and ring chromosomes were observed.
Deformed Nucleus 1 - - 2 - - 3 - - 4 - - 5 - - 6 - - 7 + + Table 2: Analysis of Allium cepa root tips treated with various concentrations of thiocyclam for 48 hours.
Micronucleus, Lagging chromosome, Multipolar Metaphase, bridges, fragments, Polykaryocytes and Deformed Nucleus were absent in all groups including negative control, Although it was more abundant in positive control group.
The results of this study showed that plants cultivated in Alahad freshwater wells (affected area) had no increase in Micronucleus, Lagging chromosome, Multipolar metaphase, bridges, fragments, Polykaryocytes and Deformed Nucleus cells including negative control.
(3) The following can also be observed: proteinaceous deposits in germinal centers, vascularization of germinal centers (Figure 1), necrosis of germinal centers, polykaryocytes
(Warthin-Finkeldey-type giant cells), eosinophils in germinal centers, eosinophilic folliculolysis, eosinophilic microabscesses, postcapillary venule proliferation, stromal sclerosis, perivenular sclerosis, rare giant cells (Warthin-Finkeldey-type giant cells), or small eosinophilic granulomas.
Their characteristic histologic features include preserved nodal architecture, florid follicular hyperplasia with reactive germinal centers, protein and IgE deposits in germinal centers, germinal center necrosis, eosinophilic infiltrates, proliferation of post-capillary venules, sclerosis, polykaryocytes
, eosinophilic folliculolysis, and prominent eosinophilic microabscesses (figure).
were prominent in the germinal centers and in the paracortex.