Abstract：
:We report a three dimensional (3D) quantitative visualization of a mammalian mitochondrion by coherent x-ray diffractive imaging (CXDI) using synchrotron radiation. The internal structures of a mitochondrion from a mouse embryonic fibroblast cell line (NIH3T3) were visualized by tomographic imaging at approximately 60 nm resolution without the need for sectioning or staining. The overall structure consisted of a high electron density region, composed of the outer and inner membranes and the cristae cluster, which enclosed the lower density mitochondrial matrix. The average mass density of the mitochondrion was about 1.36 g/cm3. Sectioned images of the cristae reveal that they have neither a baffle nor septa shape but were instead irregular. In addition, a high resolution, about 14 nm, 2D projection image was captured of a similar mitochondrion with the aid of strongly scattering Au reference objects. Obtaining 3D images at this improved resolution will allow CXDI to be an effective and nondestructive method for investigating the innate structure of mitochondria and other important life supporting organelles.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kim Y,Kim C,Kwon OY,Nam D,Kim SS,Park JH,Kim S,Gallagher-Jones M,Kohmura Y,Ishikawa T,Song C,Tae G,Noh DYdoi
10.1038/s41598-017-01833-xsubject
Has Abstractpub_date
2017-05-12 00:00:00pages
1850issue
1issn
2045-2322pii
10.1038/s41598-017-01833-xjournal_volume
7pub_type
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