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10 results for “Chytridiomycota”
Supplementary material 1 from: Radek R, Wurzbacher C, Strassert JFH (2023) New nephridiophagid genera (Fungi, Chytridiomycota) in a mallow beetle and an earwig. MycoKeys 100: 245-260. https://doi.org/10.3897/mycokeys.100.111298
Infections of Podagrica spp. and Forficula auricularia with nephridiophagids (in Malpighian tubules) and other pathogens
Supplementary material 3 from: Radek R, Wurzbacher C, Strassert JFH (2023) New nephridiophagid genera (Fungi, Chytridiomycota) in a mallow beetle and an earwig. MycoKeys 100: 245-260. https://doi.org/10.3897/mycokeys.100.111298
LSU rRNA gene sequence alignments used for phylogenetic tree reconstruction (Figure 3)
Figure 3 from: Radek R, Wurzbacher C, Strassert JFH (2023) New nephridiophagid genera (Fungi, Chytridiomycota) in a mallow beetle and an earwig. MycoKeys 100: 245-260. https://doi.org/10.3897/mycokeys.100.111298
Figure 3 Phylogenetic tree inferred from a concatenated alignment of SSU and LSU rRNA genes under the GTR+F+R5 model. Branch support is given by SH-aLRT/UFBOOT2/Bayesian posterior probabilities. Black circles indicate support values ≥ 99% or ≥ 0.9 and dashes indicate values < 50% or < 0.5. Black circles at branches show ≥ 99% and ≥ 0.9 support in all analyses. Sequences of the here newly-described species are marked in bold. For the nephridiophagids obtained from the two Lucihormetica species and from Archimandrita tessellata, only the SSU rRNA gene sequence was available for tree inference.
Supplementary material 2 from: Radek R, Wurzbacher C, Strassert JFH (2023) New nephridiophagid genera (Fungi, Chytridiomycota) in a mallow beetle and an earwig. MycoKeys 100: 245-260. https://doi.org/10.3897/mycokeys.100.111298
SSU rRNA gene sequence alignments used for phylogenetic tree reconstruction (Figure 3)
Figure 2 from: Radek R, Wurzbacher C, Strassert JFH (2023) New nephridiophagid genera (Fungi, Chytridiomycota) in a mallow beetle and an earwig. MycoKeys 100: 245-260. https://doi.org/10.3897/mycokeys.100.111298
Figure 2 Nephridiophagid (Malpighivinco podagricae) from Podagrica malvaeA–C differential interference microscopy (DIC) D–H Giemsa staining I, J scanning electron microscopy (SEM) K–O transmission electron microscopy (TEM) A fresh squash preparation of infected Malpighian tubules with young sporogenic plasmodia (ysp) and mature sporogenic plasmodia (msp) inside and outside the tubules B nuclei of vegetative plasmodia (vp) and young spores in sporogenic plasmodia have less contrast than mature spores C mature spores D, E vegetative plasmodia with few (D) or many (E) nuclei F young sporogenic plasmodium with small vegetative nuclei (vn) and larger sporogenic nuclei (sn) G the nuclei of thin-walled young spores are stained H in mature sporogenic plasmodia, only the vegetative nuclei between the spores are stained (arrows) I, J flattened mature spores with central spore opening on one side (I) K ultra-thin section of a sporogenic plasmodium with uninucleated mature spores and vegetative nuclei in the mother cytoplasm. n = nuclei L thin-walled young spore with a nucleus in polar position, mitochondria (mi) and endoplasmic reticulum (er) M maturing spore with attached vesicles (ve) delivering spore wall material and centrally located nucleus N, O mature spores with five-layered, thick spore wall, dense cytoplasm and central nucleus. Scale bars: 10 µm (A–H); 5 µm (K); 1 µm (I, J, L–O).
Figure 1 from: Radek R, Wurzbacher C, Strassert JFH (2023) New nephridiophagid genera (Fungi, Chytridiomycota) in a mallow beetle and an earwig. MycoKeys 100: 245-260. https://doi.org/10.3897/mycokeys.100.111298
Figure 1 Nephridiophagid (Nephridiochytrium forficulae) from Forficula auriculariaA–D differential interference microscopy (DIC) E, F Giemsa staining G, H scanning electron microscopy (SEM) I–M transmission electron microscopy (TEM) A Malpighian tubule filled with vegetative plasmodia (vp), young sporogenic plasmodia (ysp) and mature sporogenic plasmodia (msp) B young spores have a thin, yet transparent spore wall and a nucleus positioned near a cell pole or centrally C left plasmodium with large mature spores, right plasmodium with smaller, younger spores. Arrow points to plasma membrane D single mature spores E Giemsa staining reveals residual nuclei (arrows) of the plasmodium between mature spores F vegetative plasmodium with stained nuclei. s = spores G, H flattened oval spores with rim and a central spore opening on one side (G) I ultrathin section through a Malpighian tubule infected with different stages: small, uninucleate merozoites (m), vegetative plasmodia with several nuclei, sporogenic plasmodia (sp) and mature spores. n = nucleus. The epithelium of the Malpighian tubule (M) contains concretions (cr) J young sporogenic plasmodium containing young spores with a thin spore-wall (sw), one nucleus, endoplasmic reticulum (er) and mitochondria (mi) K part of a mature sporogenic plasmodium with a residual nucleus and two mature spores with a centrally located nucleus and a thick spore-wall L cross-section of a mature spore in the degenerating plasmodial cytoplasm. The spore wall consists of five layers (1–5). ve = vesicles M mature spore in longitudinal section showing the thin-walled cap of the spore opening (so). Scale bars: 50 µm (A); 10 µm (B–F, I); 5 µm (G, H, J); 2 µm (K); 1 µm (L, M).
Supplementary material 1 from: Radek R, Wurzbacher C, Gisder S, Nilsson RH, Owerfeldt A, Genersch E, Kirk PM, Voigt K (2017) Morphologic and molecular data help adopting the insect-pathogenic nephridiophagids (Nephridiophagidae) among the early diverging fungal lineages, close to the Chytridiomycota. MycoKeys 25: 31-50. https://doi.org/10.3897/mycokeys.25.12446
Figure S1 : Data type: molecular data
Figures 1-9 from: Radek R, Wurzbacher C, Gisder S, Nilsson RH, Owerfeldt A, Genersch E, Kirk PM, Voigt K (2017) Morphologic and molecular data help adopting the insect-pathogenic nephridiophagids (Nephridiophagidae) among the early diverging fungal lineages, close to the Chytridiomycota. MycoKeys 25: 31-50. https://doi.org/10.3897/mycokeys.25.12446
Figures 1-9 Nephridiophaga maderae, 1, 2, 5–9 bright field 3 phase contrast 4 scanning electron microscopy. 1 Three sporogonial plasmodia with different numbers of included spores. Arrows point to plasma membrane. 2 Merogonial plasmodium with numerous nuclei. 3 Mature spores. 4 The upper surface of the spore possesses a central spore opening (arrow, left spore) while the lower surface of the spore lacks an opening (right spore). 5, 6 Paraffin sections stained with hematoxylin-eosin. Generally, the plasmodia (pl) are found in the lumen of the Malpighian tubule but are often attached to the microvilli (mv) (5). Rarely, aggregates of vegetative plasmodia (arrow) occur in the epithelial cells of the Malpighian tubules (6). n = nuclei of epithelial cells. 7–9 Smears of macerated tubules stained with Giemsa depicting vegetative plasmodia (7), stained young spores (8), and unstained mature spores with residual nuclei (arrows) of the mother sporoplasm. Scale bars: 5 µm (1–4), 50 µm (5), 10 µm (6–9).
Figures 10-14 from: Radek R, Wurzbacher C, Gisder S, Nilsson RH, Owerfeldt A, Genersch E, Kirk PM, Voigt K (2017) Morphologic and molecular data help adopting the insect-pathogenic nephridiophagids (Nephridiophagidae) among the early diverging fungal lineages, close to the Chytridiomycota. MycoKeys 25: 31-50. https://doi.org/10.3897/mycokeys.25.12446
Figures 10-14 Nephridiophaga blattellae, 10–13 transmission electron microscopy, 14 Calcofluor white staining. 10 Meront with several nuclei (n) and mitochondria (mi) in the lumen of Malpighian tubule. Inset: Mitochondrium with tubular to sac-like cristae. 11 Sporogenic plasmodium containing mature spores (sp), mitochondria (mi), and vegetative nuclei (n) in the cytoplasm. The plasmodium is anchored to the microvilli (mv) of epithelial cells (ep) of the tubule. 12 Young spore within the cytoplasm of a sporogenic plasmodium, surrounded by a layer of vesicles. The spore cytoplasm contains one nucleus (n), mitochondria (mi), and endoplasmic reticulum (er). 13 An infectious sporoplasm hatches through the central spore opening, leaving behind the spore wall of the emptying spore (sp). The nucleus (n) is squeezed through the tiny spore opening. 14 Calcofluor white stains the spore wall indicating the presence of chitin (bluish color). Scale bars: 1 µm (10–13), inset 0.1 µm (10), 5 µm (14).
Figure 15 from: Radek R, Wurzbacher C, Gisder S, Nilsson RH, Owerfeldt A, Genersch E, Kirk PM, Voigt K (2017) Morphologic and molecular data help adopting the insect-pathogenic nephridiophagids (Nephridiophagidae) among the early diverging fungal lineages, close to the Chytridiomycota. MycoKeys 25: 31-50. https://doi.org/10.3897/mycokeys.25.12446
Figure 15 - Bayesian phylogenetic tree including major lineages of the Holomycota (Liu et al. 2009; syn.: Nucletmycea, Brown et al. 2009), i.e. Fungi, Cryptomycota, and the basal Nucleariida, together with Holomycota sister clades Choanomonada, Ichthyosporea, and Filasterea (Holozoa; Lang et al. 2002). Nephridiophaga species (star) form a clade together with the flagellate fungi, here indicated as Chytridiomycota s.l. The scale indicates expected changes per site. Branch support is given as Bayesian posterior probabilities above 0.95 (black circles) and maximum likelihood resampling values above 90% (white circles). Filled black circles mark support from both methods.
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