Fig. 5: Architecture of the mitochondria and plastids of different phytoplankton taxa. | Nature Communications

Fig. 5: Architecture of the mitochondria and plastids of different phytoplankton taxa.

From: Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging

Fig. 5: Architecture of the mitochondria and plastids of different phytoplankton taxa.

a Topology of the plastid. Whole plastid images and focus on the CO2-fixing compartment (pyrenoid) topology in Emiliania, Phaeodactylum, Micromonas and Symbiodinium cells. The 3D reconstruction displays the thylakoid network (dark green) crossing the pyrenoid matrix (light green). If present (Micromonas and Symbiodinium), a starch layer surrounding the pyrenoid is shown in grey. The histogram recapitulates volume occupancy by sub-plastidial structures (thylakoids, matrix, starch, pyrenoid). Note that starch is cytosolic in Symbiodinium, and therefore its volume is not considered in the graph. b Topology of mitochondrial compartments. Red: mitochondrial matrix; yellow: cristae. The histogram recapitulates volume occupancy by mitochondrial subcompartments (in the matrix and within the cristae). See Supplementary Fig. 4 for sections through plastids and mitochondria.

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