Research Article |
Corresponding author: Zong-Long Luo ( 514992672@qq.com ) Academic editor: Chitrabhanu Sharma Bhunjun
© 2023 Wen-Peng Wang, Hong-Wei Shen, Dan-Feng Bao, Yong-Zhong Lu, Qiu-Xia Yang, Xi-Jun Su, Zong-Long Luo.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Wang W-P, Shen H-W, Bao D-F, Lu Y-Z, Yang Q-X, Su X-J, Luo Z-L (2023) Two novel species and three new records of Torulaceae from Yunnan Province, China. MycoKeys 99: 1-24. https://doi.org/10.3897/mycokeys.99.106699
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While investigating the diversity of lignicolous fungi in Yunnan Province, China, six fresh collections of Torulaceae were collected and identified based on morphological examination and phylogenetic analyses of combined LSU, ITS, SSU, tef1-α, and rpb2 sequence data. Two new species, viz. Neopodoconis yunnanensis and Torula suae, and three new records, viz. T. canangae (new freshwater habitat record), T. masonii (new host record), and T. sundara (new freshwater habitat record) are reported. Detailed descriptions, illustrations, and a phylogenetic tree to show the placement of these species are provided.
2 new species, lignicolous fungi, morphology, multigene phylogeny, Pleosporales
Torulaceae (Pleosporales) was introduced by
Neopodoconis was introduced by
Torula is typified by T. herbarum (Pers.). It is characterized by terminal or lateral, monoblastic or polyblastic conidiogenous cells produced in branched chains, and subglobose, verrucose, septate, conidia (
During our investigation of lignicolous fungi in Yunnan Province, China, six fresh collections were isolated from decaying wood. Based on morphological characteristics and phylogenetic analyses of combined LSU, ITS, SSU, tef1-α, and rpb2, two new species viz. Neopodoconis yunnanensis and Torula suae, two new freshwater habitat records viz. T. canangae and T. sundara, and a new host record of T. masonii are reported.
Specimens of decaying wood were collected from lotic habitats and riverbanks in Dali City and Wenshan City, Yunnan Province, China, and returned to the laboratory in plastic bags. Methods of morphological observation and isolation followed
DNA extraction, PCR amplification, sequencing and phylogenetic analyses followed
Five gene regions, LSU, ITS, SSU, tef1-α, and rpb2 were amplified using LR0R/LR5, ITS5/ITS4, NS1/NS4, 983F/EF1-2218R, and RPB2-5F/RPB2-7cR (
Preliminary identification of genes obtained from fresh strains by GenBank database. The LSU, ITS, SSU, tef1-α and rpb2 used for phylogenetic analysis are selected based on the preliminary identification results and the related publications (
Maximum likelihood (ML) analysis was using the RAxML-HPC2 on XSEDE (8.2.12) (
Bayesian analyses were performed in MrBayes 3.2.6 (
Names, culture accession numbers, and corresponding GenBank accession numbers used for the phylogenetic analyses.
Species | Source | GenBank accession number | Reference | ||||
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LSU | ITS | SSU | tef1-α | rpb2 | |||
Arthopyrenia salicis | CBS 368.94 | AY538339 | KF443410 | AY538333 | KF443404 | KF443397 |
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Cycasicola goaensis | MFLUCC 17–0754 | MG829001 | MG828885 | NG_061287 | MG829198 | – |
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C. goaensis | MFLU 17–0581 | NG_059057 | NR_157510 | – | – | – |
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C. leucaenae | MFLUCC 17–0914 | MK347942 | MK347726 | MK347833 | – | – |
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Cylindrotorula indica | NFCCI 4836 | MT339442 | MT339444 | – | MT321492 | MT321490 |
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C. indica | NFCCI 4837 | MT339443 | MT339445 | – | MT321493 | MT321491 |
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Dendryphion aquaticum | MFLUCC 15–0257 | KU500573 | KU500566 | KU500580 | – | – |
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D. comosum | CBS 208.69 | MH871026 | MH859293 | – | – | – |
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D. europaeum | CPC 23231 | KJ869202 | KJ869145 | – | – | – |
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D. fluminicola | DLUCC 0849 | MG208140 | MG208161 | – | MG207991 | MG207972 |
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D. fluminicola | MFLUCC 17–1689 | MG208141 | NR_157490 | – | MG207992 | – |
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D. hydei | KUMCC 18–0009 | MH253927 | MN061343 | MH253929 | MH253931 | – |
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D. nanum | HKAS 84010 | KU500575 | KU500568 | KU500582 | – | – |
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MFLUCC 16–0987 | MG208135 | MG208156 | – | MG207986 | MG207967 |
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D. submersum | MFLUCC 15–0271 | KU500572 | KU500565 | KU500579 | – | – |
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Mauritiana rhizophorae | BCC 28866 | GU371824 | – | GU371832 | GU371817 | GU371796 |
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M. rhizophorae | BCC 28867 | GU371825 | – | GU371833 | GU371818 | GU371797 |
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Neooccultibambusa thailandensis | MFLUCC 16–0274 | MH260308 | MH275074 | MH260348 | MH412780 | MH412758 |
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Neopodoconis aquaticum | MFLUCC 16–1113 | MG208143 | MG208164 | – | MG207994 | MG207974 |
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N. aquaticum | KUMCC 15–0297 | MG208144 | MG208165 | – | MG207995 | MG207975 |
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N. cangshanense | MFLUCC 20–0147 | MW010281 | MW010285 | – | – | MW012636 |
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N. jiangxiensis | HJAUP C0947 | ON693846 | – | ON693847 | – | – |
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N. meilingensis | HJAUP C0905 | ON693849 | – | ON693843 | – | – |
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N. obclavata | HJAUP C0829 | ON693848 | – | ON693844 | – | – |
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N. pandanicola | KUMCC 17–0176 | MH260318 | MH275084 | MH260358 | MH412781 | MH412759 |
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N. saprophyticus | HJAUP C0830 | ON693851 | – | ON705129 | – | – |
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N. sinensis | HJAUP C0909 | ON693845 | – | ON693850 | – | – |
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N. thailandica | MFLUCC 13–0840 | NG_059703 | MN061347 | KX437759 | KX437766 | KX437761 |
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N. thailandica | KUMCC 16–0012 | KX437758 | MN061348 | KX437760 | KX437767 | KX437762 |
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N. yunnanensis | KUNCC 22–10737 | OP359410 | OP359401 | OP369295 | OP471613 | OP476726 | This study |
Neoroussoella bambusae | MFLUCC 11–0124 | KJ474839 | KJ474827 | – | KJ474848 | KJ474856 |
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N. entadae | MFLUCC 17–0920 | – | NR_163325 | NG_065773 | – | MK434898 |
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N. leucaenae | MFLUCC 17–0927 | NG_070073 | NR_165226 | NG_065774 | MK360066 | MK434896 |
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Neotorula aquatica | MFLUCC 15–0342 | KU500576 | KU500569 | KU500583 | – | – |
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N. submersa | HKAS 92660 | NG_059727 | NR_154247 | – | – | – |
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Occultibambusa bambusae | MFLUCC 13–0855 | KU863112 | KU940123 | – | KU940193 | KU940170 |
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Pseudocoleodictyospora tectonae | MFLUCC 12–0385 | KU764709 | NR_154338 | NG_061232 | – | KU712491 |
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P. tectonae | MFLUCC 12–0387 | KU764704 | KU712444 | KU712462 | – | KU712492 |
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Roussoella hysterioides | HH 26988 | AB524622 | – | AB524481 | AB539102 | AB539102 |
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R. pustulans | KT 1709 | AB524623 | – | AB524482 | AB539116 | AB539103 |
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Roussoellopsis macrospor | MFLUCC 12–0005 | KJ474847 | KJ739604 | KJ739608 | KJ474855 | KJ474862 |
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R. tosaensis | KT 1659 | AB524625 | – | AB524484 | AB539117 | AB539104 |
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Rutola graminis | CPC 33267 | MN317295 | MN313814 | – | – | – |
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R. graminis | CPC 33695 | MN317296 | MN313815 | – | – | – |
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Subglobosporium tectonae | MFLUCC 12–0390 | KU764702 | KU712446 | KU712463 | – | KU712495 |
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S. tectona | MFLUCC 12–0393 | KU764703 | NR_154426 | NG_061233 | – | KU712485 |
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Thyridariella mahakoshae | NFCCI 4215 | MG020438 | MG020435 | MG020441 | MG023140 | MG020446 |
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T. mangrovei | NFCCI 4213 | MG020437 | MG020434 | MG020440 | MG020443 | MG020445 |
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Torula acaciae | CPC 29737 | NG_059764 | NR_155944 | – | – | KY173594 |
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T. aquatica | DLUCC 0550 | MG208145 | MG208166 | – | MG207996 | MG207976 |
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T. aquatica | MFLUCC 16–1115 | MG208146 | MG208167 | – | – | MG207977 |
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T. breviconidiophora | KUMCC 18–0130 | MK071672 | MK071670 | MK071697 | MK077673 | – |
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T. camporesii | KUMCC 19–0112 | MN507402 | MN507400 | MN507401 | MN507403 | MN507404 |
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T. canangae | MFLUCC 21-0169 | OL830816 | OL966950 | – | – | – |
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T. canangae | KUNCC 22–12432 | OP359414 | OP359405 | OP369299 | OP471617 | OP476729 | This study |
T. chiangmaiensis | KUMCC 16–0039 | KY197856 | MN061342 | KY197863 | KY197876 | – |
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T. chinensis | UESTCC 22.0085 | OQ128004 | OQ127986 | OQ127995 | – | – |
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T. chromolaenae | KUMCC 16–0036 | KY197860 | MN061345 | KY197867 | KY197880 | KY197873 |
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T. fici | CBS 595.96 | KF443385 | KF443408 | KF443387 | KF443402 | KF443395 |
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T. fici | KUMCC 16–0038 | KY197859 | MN061341 | KY197866 | KY197879 | KY197872 |
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T. gaodangensis | MFLUCC 17–0234 | NG_059827 | MF034135 | NG_063641 | – | – |
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T. goaensis | NFCCL 4040 | NG_060016 | NR_159045 | – | – | – |
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T. herbarum | CPC 24414 | KR873288 | KR873260 | – | – | – |
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T. hollandica | CBS 220.69 | NG_064274 | NR_132893 | KF443389 | KF443401 | KF443393 |
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T. hydei | KUMCC 16–0037 | MH253926 | MN061346 | MH253928 | MH253930 | – |
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T. lancangjiangensis | MFLUCC 21–0098 | MW879526 | MW723059 | MW774582 | MW729785 | MW729780 |
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T. lancangjiangensis | HKAS 112709 | MZ538563 | MZ538529 | – | MZ567104 | – |
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T. longiconidiophora | UESTCC 22.0088 | OQ128001 | OQ127983 | OQ127992 | – | – |
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T. longiconidiophora | UESTCC 22.0125 | OQ128002 | OQ127984 | OQ127993 | – | – |
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T. mackenziei | HKAS 112705 | MW879525 | MW723058 | MW774581 | MW729784 | MW729779 |
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T. mackenziei | MFLUCC 13–0839 | KY197861 | MN061344 | KY197868 | KY197881 | KY197874 |
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T. masonii | CBS 245.57 | NG_058185 | NR_145193 | – | – | – |
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T. masonii | DLUCC 0588 | MG208152 | MG208173 | – | MG208000 | MG207982 |
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KUMCC 16–0033 | KY197857 | MN061339 | KY197864 | KY197877 | KY197870 |
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UESTCC 22.0089 | OQ128000 | OQ127982 | OQ127991 | – | – |
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KUNCC 22–12429 | OP359411 | OP359402 | OP369296 | OP471614 | OP476727 | This study | |
T. pluriseptata | MFLUCC 14–0437 | KY197855 | MN061338 | KY197862 | KY197875 | KY197869 |
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T. polyseptata | KUMCC 18–0131 | MK071673 | MK071671 | MK071698 | MK077674 | – |
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T. sichuanensis | UESTCC 22.0087 | OQ127999 | OQ127981 | OQ127990 | – | – |
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T. sp. | CBS 246.57 | KR873290 | KF443411 | – | – | – |
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T. suae |
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OP359415 | OP359406 | OP369300 | OP471618 | OP476730 | This study |
T. submersa | UESTCC 22.0086 | OQ128003 | OQ127985 | OQ127994 | – | – |
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T. sundara | MFLUCC 21–0067 | OM287866 | OM276824 | – | – | – |
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KUNCC 22–12430 | OP359412 | OP359403 | OP369297 | OP471615 | – | This study | |
KUNCC 22–13431 | OP359413 | OP359404 | OP369298 | OP471616 | OP476728 | This study | |
T. thailandica | GZCC 20-0011 | MN907428 | MN907426 | MN907427 | – | – |
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The phylogenetic analyses comprised LSU (1–829 bp), ITS (830–1322 bp), SSU (1323–2176 bp), tef1-α (2177–2996 bp) and rpb2 (2997–3981 bp) gene regions with 3981 characters, with Occultibambusa bambusae (MFLUCC 13–0855) and Neooccultibusa thailandensis (MFLUCC 16–0274) as the outgroup taxa (Fig.
The maximum likelihood (ML) tree based on combined LSU, ITS, SSU, tef1-α, and rpb2 sequence data. Bootstrap support values with an ML greater than 75% and Bayesian posterior probabilities (PP) greater than 0.95 are given above the nodes, shown as “ML/PP”. The tree is rooted with Occultibambusa bambusae (MFLUCC 13–0855) and Neooccultibusa thailandensis (MFLUCC 16–0274). New species and collections are indicated in red; while the type strains are in bold black.
Phylogenetic analyses have revealed that our six new isolates are nested in Torulaceae. Five new strains were grouped within Torula, while one was clustered within Neopodoconis. Neopodoconis yunnanensis (KUNCC 22–10737) clustered with N. aquaticum, N. cangshanense, N. saprophyticus and N. pandanicola with 100% ML/1.00 PP support. The new isolate Torula canangae (KUNCC 22–12432) was clustered with the ex-type strain of T. canangae (MFLUCC 21–0169) with 100% ML/1.00 PP support. Torula masonii (KUNCC 22–12429) clustered with the ex-type strain of T. masonii (CBS 245.57) with 82% ML support. Torula suae (KUNCC 22–12433) was clustered sister to T. goaensis (NFCCL 4040) with a low bootstrap support. Torula sundara (KUNCC 22–12430, KUNCC 22–12431) was clustered with T. sundara (MFLUCC 21–0076) and T. longiconidiophora (UESTCC 22.0088) with 94% ML/0.99 PP statistical support.
Referring to the collection location, Yunnan Province of China.
KUN-HKAS 121702.
Saprobic on submerged decaying wood. Sexual morph Undetermined. Asexual morph: Colonies grow on the surface of the substrate, black, hairy, and distinct branches can be seen. Mycelium immersed in the substrate, composed of pale brown, septate, unbranched hyphae. Conidiophores 174–648 × 8.2–17.5 μm (x̄ = 311 × 12 μm, n = 30), macronematous, mononematous, concentrated, erect, dark brown to black, smooth-walled, septate, unbranched, straight or slightly flexuous, pale pigment at apex. Conidiogenous cells 18–34 × 9–14 μm (x̄ = 27 × 12 μm, n = 30), monoblastic or polyblastic, integrated, terminal, cylindrical, smooth, dark brown to black. Conidia 100–155 × 23–38 μm (x̄ = 128 × 28 μm, n = 20), solitary, smooth, dry, pyriform to fusiform, dark brown to black, light brown at the apex, granular inclusions, rostrate, guttulate, 5–7-septate, dark bands at the septa, slightly cicatrized at narrow, black truncate scar at base and pale pigment cell above the scar, wide in the middle.
China, Yunnan Province, Dali City, Cangshan Mountain, Mocanxi Stream (25°64′82.95″N, 100°15′80.33″E), on submerged decaying wood, 11 April 2020, Zheng-Quan Zhang, S2690 (KUN-HKAS 121702, holotype), ex-type culture (KUNCC 22–10737).
Neopodoconis yunnanensis fits well with the generic concept of Neopodoconis in having erect, septate conidiophores, terminal, cylindrical conidiogenous cells, and rostrate, septate conidia with a subhyaline base. Phylogenetic analyses showed that Neopodoconis yunnanensis constitutes a strongly supported (100% ML/1.00 PP) independent lineage that is basal to four Neopodoconis species viz. N. aquaticum, N. cangshanense, N. saprophyticus and N. pandanicola. Neopodoconis yunnanensis (KUN-HKAS 121702) differs from N. aquaticum in having shorter but broader conidia (100–155 × 23–38 vs. 134–180 × 22–26 μm). Additionally, it has smooth conidiophores, lacks constriction at septum, larger conidia compared to N. pandanicola (100–155 × 23–38 μm vs. 55–110 × 18–26 μm), different from N. cangshanense in terms of larger size (100–155 × 23–38 vs. 94–109 × 11–24 μm), and lacks hyaline sheath in the apex of conidia. We, therefore, describe the newly obtained taxon as a new species based on both morphology and multigene phylogeny (
Saprobic on submerged decaying wood. Sexual morph: Undetermined. Asexual morph: Colonies effuse on the natural substrate, neat, hairy, brown. Mycelium immersed to superficial, hyaline, septate, branched hyphae. Conidiophores indistinct. Conidiogenous cells 6–10(–13) × 5–7 (–13) μm (x̄ = 8 × 7 μm, n = 15), holoblastic, mono-to polyblastic, integrated, terminal, doliiform to spherical, brown to dark brown. Conidia (28–) 78–113 (–142) × 6–9 μm (x̄ = 82 × 7 μm, n = 20), acrogenous, dry, brown to dark brown, subhyaline at terminal cell, constricted at septa, verrucose, easily separating, 5–29-septate, cell size is uniform, chiefly subcylindrical.
Conidia germinating on PDA within 12 h, and germ tubes produced at the side. Mycelium superficial, branched, septate, hyaline, smooth. After two weeks of incubation at room temperature, colony appears distinctly rounded, the central hyphae are longer, white, velvety, and the edges are white to brown and the hyphae are shorter.
China, Yunnan Province, Wenshan, Bamei Town (24°31′96.49″N, 105°03′84.35″E), on submerged decaying wood, 7 February 2022, Wen-Peng Wang S3492 (KUN-HKAS 124619), living culture, KUNCC 22–12432 =
Saprobic on dead Artemisia carvifolia stems. Sexual morph Undetermined. Asexual morph: Colonies effuse on the natural substrate, scattered, hairy, dark brown to black. Mycelium mostly immersed. Conidiophores 16–28 (–45) × 3–4 μm (x̄ = 26 × 4 μm, n = 10), macronematous mononematous, subcylindrical, erect, septate, smooth, straight or slightly flexuous, brown to dark brown, the uppermost side of a transverse compartment is concave inward. Conidiogenous cells 8–10 × 5–7 μm (x̄ = 9 × 6 μm, n =15), holoblastic, polyblastic, doliiform to ellipsoid, dark brown, smooth. Conidia (16–) 25–48 (–70) × 6–10 μm (x̄ = 35 × 8 μm, n = 50), phragmosporous, in branched chains, acrogenous, dry, brown to dark brown, subhyaline at terminal cell, and central cells are significantly larger than both end cells, nearly ellipsoid, constricted at septa, verrucose, easily separating, 2–16-septate, cells subglobose.
Conidia germinating on PDA within 12 h. and germ tubes produced at the side. Mycelium superficial, branched, septate, hyaline, smooth. After two weeks of incubation at room temperature, colony edges are irregularly ellipsoid, center is white with gray fuzzy protrusions on the sides, and a translucent gelatinous substance at the outermost periphery. Hyphae flocculent, velvety.
China, Yunnan Province, Dali, Cangshan mountain (25°64′82.95″N, 100°15′80.33″E), on dead Artemisia carvifolia stems, 16 October 2021, Wen-Peng Wang H630 (KUN-HKAS 124616), living culture, KUNCC 22–12429 =
Torula masonii collected on Brassica sp. in the UK was introduced by
“suae” (Lat) in memory of the Chinese mycologist Prof. Hong-Yan Su, who kindly helped the authors in many ways and sadly passed away on 3 May 2022.
KUN-HKAS 124620.
Saprobic on submerged decaying wood. Sexual morph: Undetermined. Asexual morph: Colonies effuse on the natural substrate, neat, hairy, brown to dark brown. Mycelium immersed to superficial, composed of hyaline, becoming brown closer to fertile region, septate, branched hyphae. Conidiophores 17–54 × 3–4 μm (x̄ = 32 × 3 μm, n = 10), macronematous to semi- macronematous, erect, straight, or slightly flexuous, without apical branches, light brown to brown, ellipsoid to subcylindrical, smooth, septate. Conidiogenous cells 6–8 × 5–7 μm (x̄ = 7 × 6 μm, n = 20), mono- to polyblastic, integrated, terminal or intercalary, doliiform to subglobose, brown to dark brown. Conidia (16–) 31–115 (–160) × 6–9 μm (x̄ = 69 × 7 μm, n = 35), in branched chains, acrogenous, phragmoconidia, golden at apex, brown to dark brown, 2–29-septate, constricted at the septa, verrucose, easily separating, guttulate, chiefly subcylindrical, globlose to subglobose of each cell.
Conidia germinating on PDA within 12 h, and germ tubes produced at the side. Mycelium superficial, branched, septate, hyaline, smooth. After two weeks of incubation at room temperature, colony appears distinctly rounded, the central hyphae are longer, white, velvety, and the edges are brown and the hyphae are shorter.
China, Yunnan Province, Wenshan City, Bamei Town (24°31′96.49″N, 105°03′84.35″E), on submerged decaying wood, 7 February 2022, Wen-Peng Wang S–3509 (KUN-HKAS 124620, holotype), ex-type living culture, KUNCC 22–12433 =
According to the BLASTn results, the closest matches for our new species were Torula suae (KUNCC 22–12433) (NR 159045, 98.59% similarity in ITS) and T. goaensis (NFCCL 4040) (NG 060016, 99.60% similarity in LSU). Comparison of ITS and LSU nucleotide bases indicated that T. suae differs from T. goaensis in 7/494 (ITS) and 5/1257 (LSU). Phylogenetic analyses showed that T. suae clustered with T. goaensis with low support. Morphologically, T. suae is similar to T. goaensis in having conidiophores without apical branches and doliiform to subglobose conidiogenous cells (
Saprobic on submerged decaying wood. Sexual morph: Undetermined. Asexual morph: Colonies on the natural substrate, effuse, scattered, hairy, yellow to black, dry. Mycelium mostly immersed, hyaline, septate, branched hyphae. Conidiophores 20–53 × 3–4 μm (x̄ = 36 × 4 μm, n = 15), micronematous to semi-macronematous, mononematous, subcylindrical, erect, septate, smooth, straight, or slightly flexuous, brown to dark brown, branched. Conidiogenous cells 6–9 × 5–7 μm (x̄ = 7 × 6 μm, n = 20), holoblastic, mono-to polyblastic, integrated, terminal, doliiform to ellipsoid, brown to dark brown. Conidia two types, short conidia and long conidia. Short conidia 18–58 × 5–11 μm (x̄ = 42 × 9 μm, n =30), acrogenous, phragmosporous, in branched chains, dry, brown to dark brown, subhyaline at terminal cell, constricted at septa, verrucose, subglobose cells and central cells are larger than the ends cells, 3–15-septate. Long conidia 165–368 × 4–7 μm (x̄ =226 × 6 μm, n =10), acrogenous, phragmosporous, dry, straight to slightly flexuous, light brown to brown, subhyaline at terminal cell, constricted at septa, verrucose, easily separating, fusiform to ellipsoidal cells and uniform in size, 20–30-septate.
Torula sundara (KUNCC 22-12431) A fungal structure on the substratum B, C mycelium, conidiophore and conidia D–F conidiophore, conidiogenous cells with conidia G–I short conidia J–L long conidia M germinating conidium N, O colonies on PDA from surface and reverse. Scale bars: 40 μm (B, G), 15 μm (C), 20 μm (D-F, H, I, M), 50 μm (J–L).
Conidia germinating on PDA within 12 h, and germ tubes produced at the side. Mycelium superficial, branched, septate, hyaline, smooth. After two weeks of incubation at room temperature, colony appears distinctly rounded; there is a spherical protrusion in the center with a circle of brown stripes around it. Hyphae flocculent, velvety.
China, Yunnan Province, Wenshan, Bamei Town (24°31′96.49″N, 105°03′84.35″E), on submerged decaying wood, 7 February 2022, Wen-Peng Wang, S3256 (KUN-HKAS 124617), living culture, KUNCC 22–12430 =
Torula sundara collected from terrestrial habitats on bamboo culms in Chiang Mai Province, Thailand was introduced by
An interesting finding of our study is that the phylogenetic analyses yielded similar topologies to
Furthermore, the new genus Pseudohelminthosporium (Neomassarinaceae, Pleosporales), was recently proposed with the type species P. clematidis which has fusiform or obclavate>, rostrate, euseptate, verrucose, with a thick, black and protruding scars at the base of the conidia. These characteristics fit well with the description of Exosporium ampullaceum (
Zheng-Quan Zhang, Long-Li Li, Sha Luan, and Liang Zhang are thanked for their help with sample collection, DNA extraction, and PCR amplification.
The authors have declared that no competing interests exist.
No ethical statement was reported.
We thank the National Natural Science Foundation of China (Project ID: 32060005), and the Yunnan Fundamental Research Project (202201AW070001) for financial support.
Data curation: DFB. Formal analysis: HWS. Funding acquisition: ZLL. Investigation: QXY, WPWW. Project administration: ZLL, XJS. Resources: QXY. Software: HWS. Supervision: XJS. Writing - original draft: WPWW. Writing - review and editing: YZL, DFB.
Hong-Wei Shen https://orcid.org/0000-0003-2508-1970
Yong-Zhong Lu https://orcid.org/0000-0002-1033-5782
Zong-Long Luo https://orcid.org/0000-0001-7307-4885
All of the data that support the findings of this study are available in the main text.