کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9122142 1159205 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Visualization of the cytostome in Trypanosoma cruzi by high resolution field emission scanning electron microscopy using secondary and backscattered electron imaging
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی ژنتیک
پیش نمایش صفحه اول مقاله
Visualization of the cytostome in Trypanosoma cruzi by high resolution field emission scanning electron microscopy using secondary and backscattered electron imaging
چکیده انگلیسی
High resolution scanning electron microscopy was used to analyze the surface of epimastigote, amastigote and trypomastigote forms of Trypanosoma cruzi. Significant differences were observed between these forms and in different areas of the same cell. The cytostome found in amastigote and epimastigote forms could be easily visualized in images, which resemble those obtained only using the freeze-fracture technique. In contrast to other areas of the cell surface, the region of the cytostome, localized close to the flagellar pocket, showed a rugous surface and an opening with a diameter of 90 nm. Gold-labeled concanavalin A binds to the whole cell surface. However, the extent of binding was much higher in the region of the cytostome. The results obtained show that high resolution scanning electron microscopy is a powerful technique for analyzing the surface of protozoa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEMS Microbiology Letters - Volume 242, Issue 2, 15 January 2005, Pages 227-230
نویسندگان
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