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- Title
Statistical analysis of intramembranous particles using freeze fracture specimens.
- Authors
Schladitz, Katja; Särkkä, Aila; Pavenstädt, Iris; Haferkamp, Otto; Mattfeldt, Torsten
- Abstract
Summary We studied the point processes of intramembranous particles of mitochondrial membranes from HeLa cells using the freeze fracture technique. Three groups – under normal conditions, after exposition with rotenone, and after exposition with sodium acid – were compared. First, we used several summary statistics in order to study the two-dimensional point patterns of intramembranous particles within each group. Then, we compared the patterns in different groups by bootstrap tests using the K -function and the nearest neighbour distance function G (r ). Estimation of the G -function provided significant results but no significant differences between groups were found using the classical K -function; estimation of G (r ) should therefore not be omitted when studying observed planar point patterns.
- Subjects
MITOCHONDRIAL membranes; FREEZE fracturing; BOOTSTRAP theory (Nuclear physics); MATHEMATICAL analysis
- Publication
Journal of Microscopy, 2003, Vol 211, Issue 2, p137
- ISSN
0022-2720
- Publication type
Article
- DOI
10.1046/j.1365-2818.2003.01210.x