(A) Chytrids (phylum Chytridiomycota) are a major fungal lineage, many members of which exhibit cellular characteristics retained from the last common ancestor of branching (rhizoidal and hyphal) …
Cells diluted 1:1000, fixed in 0.2% formaldehyde, and stained with FM 1–43 FX to visualise cell membranes. Asterisks mark mature zoosporangia in mixed populations.
(A) Representative SBF-SEM reconstructions of the first three life stages of the R. globosum life cycle. Bottom row shows the stages to scale. Organelle colours as in (B–D) and conserved throughout. …
Data associated with Figure 2.
(A) Whole cell slices of each chytrid life stage showing the localisation and orientation of subcellular structures in context. (B) High magnification images of individual subcellular structures …
Organelle colours as in Figure 2A–D. Top row shows all replicates to scale.
Organelle colours as in Figure 2A–D.
n.s p > 0.05 (not significant), *p < 0.05, **p < 0.01, ***p < 0.001.
(A) Shared and unique gene mRNA counts between life stages. Inset shows total gene mRNA counts per life stage. (B) Pairwise comparison of differentially expressed genes (DEGs) between germlings and …
Data associated with Figure 3.
GeneRatio is number of genes significantly upregulated/total number of genes. Circle size represents numbers of genes.
GeneRatio is number of genes significantly upregulated/total number of genes. Circle size represents numbers of genes.
GeneRatio is number of genes significantly upregulated/total number of genes. Circle size represents numbers of genes.
GeneRatio is number of genes significantly upregulated/total number of genes. Circle size represents numbers of genes.
(A) Fluorescent labelling of Rhizoclosmatium globosum shows distinct shifts in lipid structures across the chytrid life cycle and cell wall. Dashed line demarks cell boundary where not labelled in …
Data associated with Figure 4.
n.s. p > 0.05 (not significant).
(A) Live-cell imaging (n = 5) of Rhizoclosmatium globosum population-level FM1–43-stained endomembrane dynamics. Purple = mean endomembrane fluorescence (±min/max), black = mean total cell area …
Data associated with Figure 5.
n.s. p > 0.05 (not significant), *p < 0.05, **p < 0.01, ***p < 0.001.
(A) Fluorescent labelling of lipids, cell wall, and endomembrane in a Rhizoclosmatium globosum mature zoosporangium. Scale bar = 5 µm. (B–C) Serial block face scanning electron microscopy (SBF-SEM) …
Data associated with Figure 6.
n.s. p > 0.05 (not significant), *p < 0.05, **p < 0.01, ***p < 0.001.
Representative SBF-SEM reconstructions of the zoospore, germling, and immature thallus life stages for comparison. Zoospore and germling cells shown to scale at the beginning of the video, and later …
Representative serial block face scanning electron microscopy (SBF-SEM) reconstructions of the zoospore, germling, and immature thallus lipid structures for comparison.
Automated particle tracking of lipid globules (red) across the chytrid life cycle. Magenta circles mark individual lipid globules. Yellow track shows particle tracking of the initial lipid globule …
Representative serial block face scanning electron microscopy (SBF-SEM) reconstruction of a chytrid apophysis from an immature thallus.
Live-cell imaging of endomembrane dynamics in the chytrid apophysis. The apophysis links endomembrane dynamics between the rhizoid system and thallus. Shown are DIC (left), endomembrane (centre), …
Representative serial block face scanning electron microscopy (SBF-SEM) reconstructions of the ‘mature’ zoospore and developing zoospore life stages for comparison.
Mean volumetric quantities of cellular structures recorded across chytrid life stages.
Mean numerical quantities of cellular structures recorded across chytrid life stages.
Mean volumetric percentages and statistical comparisons of cellular structures recorded across chytrid life stages.
Mean volumetric percentages and statistical comparisons of cell bodies and their corresponding apophyses in immature thalli.
Mean volumetric percentages and statistical comparisons of free-swimming and developing zoospores.
Python script used to quantify population-level fluorescence of developing chytrid cells (Figures 4 and 5).
Python script used to quantify single-cell Nile Red fluorescence of settled chytrid zoospores (Figure 4).