ساري هشام مصطفى أبو راس عضو جديد

المساهمات : 16 تاريخ التسجيل : 03/09/2008 العمر : 36
 | موضوع: السؤال الثاني الذكي الخميس سبتمبر 04, 2008 11:04 pm | |
| How you can differentiate between E.histoliteca and E.poloski ? | |
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e.a.i.a.m عضو ذهبي


المساهمات : 211 تاريخ التسجيل : 28/05/2008
 | موضوع: رد: السؤال الثاني الذكي السبت سبتمبر 06, 2008 1:29 pm | |
| السلام عليكم ورحمة الله وبركاته.... Characteristics | E. histolytica | E. polecki | Trophozoites (size, nucleus, and movement) | 15-20 µm; 1 nucleus; actively motile cytoplasmic protrusions, quickly finger shaped pseudopodium | 15-20 µm; 1 nucleus; motility resembles E. coli (slow movement, short and blunt pseudopodium) | Cysts (size, nucleus) | 12-15 µm; mature cyst has 4 nuclei, immature cyst has 1 or 2 nuclei | 10-15 µm; 1 nucleus, very rarely binucleate or quadrinucleate | Appearance of trophozoites | Stained trophozoites fine, uniform granules of peripheral chromatin, and small central karyosome in nucleus; ingested RBC | Nucleus with minute central karyosome, with fine granules of peripheral chromatin, finely granular cytoplasm; ingested bacteria | Appearance of cysts | Uniform size in having both karyosome and peripheral chromatin, typical nuclear structure, chromatodial bars with squared or rounded ends | Mononucleate; large central karyosome; inclusion masses, chromatoid bars with pointed or angular ends | Pathogenicity | Pathogen | Nonpathogen | المصدر:http://cmr.asm.org/cgi/content/full/16/4/713/T1تحياتي... | |
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