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218 results for “Pleosporales”
Characterization of nuclear and mitochondrial genomes of Leptosphaerulina chartarum and Curvularia trifolii and their contributions to phylogenetic implications in the Pleosporales
<p>Previous studies reported that symbiont endophytic fungi are widely distributed in all tissues of tobacco plants and played important roles. It is therefore important to determine the species distribution and characteristics of endophytic fungi in tobacco. Here, two parasitic fungi <em>Leptosphaerulina chartarum</em> and <em>Curvularia trifolii</em> were isolated from normal tobacco tissue, then were used to sequence their nuclear and mitogenomes. Finally, we yield 41.68 Mb and 37.95 Mb nuclear genome for <em>C. trifolii </em>and <em>L. chartarum</em> with the contig N50 as 638.94 Kb and 284.12 Kb, respectively. The average GC content of these two species were 49.74% and 50.64%. And the <em>C. trifolii</em> and <em>L. chartarum</em> mitochondrial genomes were 68,926 bp and 59,100 bp long circular molecules with average GC contents of 28.60% and 29.31%, respectively. In order to gain additional evidence for the classification of <em>C. trifolii</em> and <em>L. chartarum</em>, we calculated the evolutionary rate of 7 nuclear and 12 mitochondrial genes and then performed phylogenetic analyses. The results showed that the phylogenetic trees performed by combining nuclear and mitochondrial genes showed similar topologies, only existing tiny difference. Combined with our studies, we further confirmed that the phylogenetic relationships of endophytic fungi in tobacco is better to construct based on the datasets of multi-protein coding genes either from nuclear or mitochondrial genomes. These data therefore provide an understanding of the gene content and evolutionary history of species within the Pleosporales.</p>
Figure 5 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 5 Alternaria hunanensis (HN43-10-2) A colony on PCA after 6 days at 25 °C in the dark B, C sporulation patterns D, E conidiophores and conidiogenous cells F conidia. Scale bars: 50 μm (B, C); 10 μm (D–F).
Figure 3 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 3 Alternaria cunninghamiicola (DSQ3-2) A colony on PCA after 6 days at 25 °C in the dark B sporulation patterns C, D conidiophores and conidiogenous cell E, F conidium. Scale bars: 50 μm (B); 10 μm (C–F).
Figure 7 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 7 Alternaria longqiaoensis (HN43-14) A colony on PCA after 6 days at 25 °C in the dark B, C sporulation patterns D, E conidiophore and conidiogenous cells F conidium. Scale bars: 50 μm (B, C); 10 μm (D–F).
Figure 9 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 9 Alternaria xinyangensis (ZLS1) A colony on PCA after 6 days at 25 °C in the dark B, C sporulation patterns D conidiophores and conidiogenouse cells E conidium. Scale bars: 50 μm (B, C);10 μm (D, E).
Figure 2 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 2 Splitgraphs showing the results of the pairwise homoplasy index (PHI) test of newly described taxa and closely-related species using both LogDet transformation and splits decomposition A the PHI of Alternaria xinyangensis sp. nov. and A. dongshanqiaoensis sp. nov. with their phylogenetically related isolates or species B the PHI of A. shandongensis sp. nov., A. kunyuensis sp. nov., A. hunanensis sp. nov. and A. longqiaoensis sp. nov. with their phylogenetically related isolates or species C the PHI of A. cunninghamiicola sp. nov. with their phylogenetically-related isolates or species. PHI test value (Φw) < 0.05 indicate significant recombination within a dataset. * indicates strains of this study. T indicates the ex-type strains, ET indicates the ex-epitype strains, HT indicates the ex-holotype strains.
Figure 1 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 1 Phylogenetic relationships of 116 isolates of the Alternaria species complex with related taxa with concatenated sequences of the SSU, LSU, ITS, GAPDH, RPB2, TEF1, Alt a1, endoPG and OPA10-2 loci using Bayesian inference (BI) and Maximum-likelihood (ML) methods. Bootstrap support values from ML ≥ 70% and BI posterior values ≥ 0.9 are shown at nodes (ML/BI). Alternaria alternantheraeCBS 124392 was the outgroup. * and red font indicates strains of this study. T indicates the ex-type strains, ET indicates the ex-epitype strains, HT indicates the ex-holotype strains.
Supplementary material 1 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Supplementary information
Figure 4 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 4 Alternaria dongshanqiaoensis (DSQ2-2) A colony on PCA after 6 days at 25 °C in the dark B, C sporulation patterns D conidiophore and conidiogenous cell E conidia. Scale bars: 50 μm (B, C); 10 μm (D, E).
Figure 8 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 8 Alternaria shandongensis (SDHG12) A colony on PCA after 6 days at 25 °C in the dark B–D sporulation patterns E, F conidiophores and conidiogenous cells G conidia. Scale bars: 50 μm (B, C); 10 μm (D–G).
Figure 6 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 6 Alternaria kunyuensis (XXG21) A colony on PCA after 6 days at 25 °C in the dark B, C sporulation patterns D conidiophores bear conidiogenous cells E secondary conidiophores, conidiogenous cells and conidia F conidium. Scale bars: 50 μm (B); 10 μm (C–F).
Figure 10 from: He J, Li D-W, Cui W-L, Huang L (2024) Seven new species of Alternaria (Pleosporales, Pleosporaceae) associated with Chinese fir, based on morphological and molecular evidence. MycoKeys 101: 1-44. https://doi.org/10.3897/mycokeys.101.115370
Figure 10 Symptoms on detached Chinese fir leaves A inoculated with isolates: A. xinyangensis (ZLS1), A. kunyuensis (XXG21), A. cunninghamiicola (DSQ3-2), A. dongshanqiaoensis (DSQ2-2), A. longqiaoensis (HN43-14), A. shandongensis (SDHG12) and A. hunanensis (HN43-10-2) B lesion length on detached Chinese fir leaves inoculated with A. xinyangensis (ZLS1), A. kunyuensis (XXG21), A. cunninghamiicola (DSQ3-2), A. dongshanqiaoensis (DSQ2-2), A. longqiaoensis (HN43-14), A. shandongensis (SDHG12) and A. hunanensis (HN43-10-2). Error bars represent standard error and different letters indicate significant difference, based on LSD's range test at P < 0.05 (n = 12). Scale bar: 10 mm (A).
Figure 1 from: Xu R, Su W, Wang Y, Tian S, Li Y, Phukhamsakda C (2024) Morphological characteristics and phylogenetic evidence reveal two new species and the first report of Comoclathris (Pleosporaceae, Pleosporales) on dicotyledonous plants from China. MycoKeys 101: 95-112. https://doi.org/10.3897/mycokeys.101.113040
Figure 1 The Bayesian 50% majority-rule consensus phylogram, based on a concatenated ITS, LSU, SSU and rpb2 dataset of Comoclathris. The tree is rooted with Neocamarosporium betae (CBS 523.66) and N. calvescens (CBS 246.79). RAxML bootstrap support values ≥ 70% (ML, left) and Bayesian posterior probabilities ≥ 0.90 (BPP, right) are shown near the nodes. The new isolates are indicated in orange. The type strains are in bold and labelled with T.
Figure 3 from: Xu R, Su W, Wang Y, Tian S, Li Y, Phukhamsakda C (2024) Morphological characteristics and phylogenetic evidence reveal two new species and the first report of Comoclathris (Pleosporaceae, Pleosporales) on dicotyledonous plants from China. MycoKeys 101: 95-112. https://doi.org/10.3897/mycokeys.101.113040
Figure 3 Comoclathris xanthoceratis (HMJAU 64846, holotype) A–C appearance of ascomata on host substrate D vertical section of ascoma E peridium F pseudoparaphyses G–J asci (H, I) asci production from the sterile condition) K–Q ascospores R culture characteristics on PDA after three weeks at 25 °C (black dots indicate the sexual reproduction in culture condition). Scale bars: 200 µm (C); 50 µm (D); 20 µm (G–J); 10 µm (E, K–Q); 5 µm (F).
Figure 2 from: Xu R, Su W, Wang Y, Tian S, Li Y, Phukhamsakda C (2024) Morphological characteristics and phylogenetic evidence reveal two new species and the first report of Comoclathris (Pleosporaceae, Pleosporales) on dicotyledonous plants from China. MycoKeys 101: 95-112. https://doi.org/10.3897/mycokeys.101.113040
Figure 2 Comoclathris clematidis (HMJAU 64844, holotype) A, B appearance of ascomata on host substrate C vertical section of ascoma D peridium E pseudoparaphyses F–H asci I–O ascospores P, Q culture characteristics on PDA after three weeks at 25 °C. Scale bars: 200 µm (B); 50 µm (C); 20 µm (E–H, O); 10 µm (D, I–N).
Figure 1 from: Phookamsak R, Hongsanan S, Bhat DJ, Wanasinghe DN, Promputtha I, Suwannarach N, Kumla J, Xie N, Dawoud TM, Mortimer PE, Xu J, Lumyong S (2024) Exploring ascomycete diversity in Yunnan II: Introducing three novel species in the suborder Massarineae (Dothideomycetes, Pleosporales) from fern and grasses. In: Wijayawardene N, Karunarathna S, Fan X-L, Li Q-R (Eds) Taxonomy and secondary metabolites of wood-associated fungi. MycoKeys 104: 9-50. https://doi.org/10.3897/mycokeys.104.112149
Figure 1 Phylogram of the best-scoring ML consensus tree of taxa in Bambusicolaceae and Occultibambusaceae. The new isolate is indicated in blue. Isolates from type materials are in bold. The ML ultrafast bootstrap and Bayesian PP values greater than 60% and 0.90 are shown at the nodes.
Figure 4 from: Isocrono D, Ravera S (2024) Typification of the name Arthopyrenia parolinii Beltr. (Ascomycota, Dothideomycetes, Pleosporales, Arthopyreniaceae). In: Wijayawardene N, Karunarathna S, Fan X-L, Li Q-R (Eds) Taxonomy and secondary metabolites of wood-associated fungi. MycoKeys 104: 1-8. https://doi.org/10.3897/mycokeys.104.109420
Figure 4 Arthopyrenia parolinii Beltr locus classicus (i.e. "Passeggio pubblico di Belvedere o Fosse") depicted in a 1917 postcard (from: Bordignon 2016). The image shows the original lime trees that are mentioned in the protologue of A. parolinii before their removal.
Figure 3 from: Isocrono D, Ravera S (2024) Typification of the name Arthopyrenia parolinii Beltr. (Ascomycota, Dothideomycetes, Pleosporales, Arthopyreniaceae). In: Wijayawardene N, Karunarathna S, Fan X-L, Li Q-R (Eds) Taxonomy and secondary metabolites of wood-associated fungi. MycoKeys 104: 1-8. https://doi.org/10.3897/mycokeys.104.109420
Figure 3 Arthopyrenia paroliniiA vertical section through a perithecium, arrows showing hamathecium and K- excipulum B bitunicate asci and pluriseptate ascospores in 10% KOH. Scale bars: 15 µm.
Figure 2 from: Phookamsak R, Hongsanan S, Bhat DJ, Wanasinghe DN, Promputtha I, Suwannarach N, Kumla J, Xie N, Dawoud TM, Mortimer PE, Xu J, Lumyong S (2024) Exploring ascomycete diversity in Yunnan II: Introducing three novel species in the suborder Massarineae (Dothideomycetes, Pleosporales) from fern and grasses. In: Wijayawardene N, Karunarathna S, Fan X-L, Li Q-R (Eds) Taxonomy and secondary metabolites of wood-associated fungi. MycoKeys 104: 9-50. https://doi.org/10.3897/mycokeys.104.112149
Figure 2 Phylogram of the best-scoring ML consensus tree of Trichobotrys species in Dictyosporiaceae and closely-related families viz. Didymosphaeriaceae, Lentitheciaceae, Morosphaeriaceae, Sulcatisporaceae and Trematosphaeriaceae. The new isolate is indicated in blue. Isolates from type materials are in bold. The ML ultrafast bootstrap and Bayesian PP values greater than 70% and 0.95 are shown at the nodes.
Figure 5 from: Phookamsak R, Hongsanan S, Bhat DJ, Wanasinghe DN, Promputtha I, Suwannarach N, Kumla J, Xie N, Dawoud TM, Mortimer PE, Xu J, Lumyong S (2024) Exploring ascomycete diversity in Yunnan II: Introducing three novel species in the suborder Massarineae (Dothideomycetes, Pleosporales) from fern and grasses. In: Wijayawardene N, Karunarathna S, Fan X-L, Li Q-R (Eds) Taxonomy and secondary metabolites of wood-associated fungi. MycoKeys 104: 9-50. https://doi.org/10.3897/mycokeys.104.112149
Figure 5 Trichobotrys sinensis (KUN-HKAS 129041, holotype) A, B the appearance of colonies on the host surface C mycelium D–H conidiophores bearing conidiogenous cells and conidia I conidia in a short acropetal chain J–N conidia O culture characteristics on PDAP conidioma forming on PDA after eight weeks Q pycnidial wall R–T conidiogenous cells (note: T = stained in Congo red) U conidia. Scale bars: 100 μm (P); 50 μm (C); 10 μm (D–H, Q–U); 5 μm (J–N).
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