  We investigate the impact of the local spin texture on the differential
conductance by scanning tunneling microscopy. In the focus is the previously
found non-collinear magnetoresistance, which originates from spin mixing
effects upon electron hopping between adjacent sites with canted magnetic
moments. In the present work it is studied with lateral resolution both for the
zero magnetic field spin spiral state as well as for individual magnetic
skyrmions at different magnetic field values. We analyze in detail the response
of the differential conductance and find different dependencies of peak energy
and peak intensity on the local properties of the non-collinear spin texture.
We find that in the center of a skyrmion the peak energy and intensity scale
roughly linear with the angle between nearest neighbor moments. Elsewhere in
the skyrmion, where the non-collinearity is not isotropic and the magnetization
quantization axis varies, the behavior of the peak energy is more complex.
