کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4371908 1302548 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cell surface differences of Naegleria fowleri and Naegleria lovaniensis exposed with surface markers
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی انگل شناسی
پیش نمایش صفحه اول مقاله
Cell surface differences of Naegleria fowleri and Naegleria lovaniensis exposed with surface markers
چکیده انگلیسی

Differences in the distribution of diverse cell surface coat markers were found between Naegleria fowleri and Naegleria lovaniensis. The presence of carbohydrate-containing components in the cell coat of the two species was detected by selective staining with ruthenium red and alcian blue. Using both markers, N. fowleri presented a thicker deposit than N. lovaniensis. The existence of exposed mannose or glucose residues was revealed by discriminatory agglutination with the plant lectin Concanavalin A. These sugar residues were also visualized at the cell surface of these parasites either by transmission electron microscopy or by fluorescein-tagged Concanavalin A. Using this lectin cap formation was induced only in N. fowleri. The anionic sites on the cell surface detected by means of cationized ferritin were more apparent in N. fowleri. Biotinylation assays confirmed that even though the two amoebae species have some analogous plasma membrane proteins, there is a clear difference in their composition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Parasitology - Volume 117, Issue 4, December 2007, Pages 399–404
نویسندگان
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