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I am having difficulty identifying this structure.

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I am having difficulty identifying this structure.

Postby omegad » Sun Dec 01, 2013 7:11 am

This image is from a spinach chloroplast and has been made using a Transmission Electron Microscope microscope.

I have been given this image to identify which has been took by a TEM. I have been for quite a while been comparing and contrasting many different TEM images of different structures of parts of chloroplasts but to no avail being able find even a vaguely similar match. (Both images relate to the same structure but in a different perspective.)

My instinct is telling me that it may be a part of stacks of grana being circular in structure on image C and has a stacked appearance on D. But I am not certain since I have not done this kind of identification on such a high magnification before. Hence my long search of sources to find a comparable structure.


As for the scaling of the image scale bar on image c is = 200nm and the scale bar on image d= 100nm.

Any help will be greatly appreciated.
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Postby supersapien » Mon Dec 02, 2013 9:21 am

The image on the left is that of a TEM, because TEM can clearly differentiate outlines or contours.
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Postby JackBean » Fri Feb 28, 2014 3:03 pm

Yeah, the D seems like stacks.

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