File:41467 2023 39758 Fig1.webp

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Captions

Captions

Endosymbiosis between ''Ixodes ricinus'' and ''Ca.'' Midichloria mitochondrii

Summary

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Description
English: Endosymbiosis between Ixodes ricinus and Ca. Midichloria mitochondrii.
a Adult female I. ricinus tick (which harbors M. mitochondrii in its ovary)
b ovary of adult female I. ricinus tick
c All ovaries were investigated to visualize the multiple follicles carrying the oocytes.
d–f M. mitochondrii is located in between the inner (yellow asterisk) and outer (arrow) membrane of mitochondria of the wild-type oocytes.
f Conventional TEM image shows an oocyte mitochondrion (M) carrying an intramitochondrial M. mitochondrii (bac) underneath mitochondrial outer membrane (arrow). Note the highly vacuolated mitochondrial ultrastructure with inflated cristae.
g–i Aposymbiotic oocytes have regular mitochondria with crisp cristae and are free of M. mitochondrii.
Scale bars b: 5 mm, c: 100 μm d, g: 10 μm; e, f, h, i: 1 μm, n = 1 wild-type and n = 1 aposymbiotic tick
Note: aposymbiotic = free of (endo)symbionts
Date
Source Three-dimensional images reveal the impact of the endosymbiont Midichloria mitochondrii on the host mitochondria. In: Nature Communications, volume 14, No. 4133; doi:10.1038/s41467-023-39758-x
Author Zerrin Uzum, Dmitry Ershov, Michael J. Pavia, Adeline Mallet, Olivier Gorgette, Olivier Plantard, Davide Sassera, Fabrizia Stavru
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