Volume 9 - 2018 - Issue 3 - Closed


1. Two new species of Russula from Northeast China

Authors: Li GJ, Zhang CL, Zhao RL, Lin FC

Recieved: 08 March 2018, Accepted: 03 May 2018, Published: 18 May 2018

Two new species of the genus Russula from northeastern China are described and illustrated based on phylogenetic analysis of internal transcribed spacer (ITS) ribosomal DNA sequences and morphological examination. These two new species are R. heilongjiangensis (from subsect. Maculatinae) and R. khinganensis (from subsect. Puellarinae). The morphological and molecular analyses support their taxonomic classification. A comparison of these new species and other similar species is also addressed in this paper.

Keywords: Agaricomycetes – morphology – phylogeny – Russulaceae – Russulales – taxonomy

 

2. Lignicolous freshwater fungi from China II: Novel Distoseptispora (Distoseptisporaceae) species from northwestern Yunnan Province and a suggested unified method for studying lignicolous freshwater fungi

Authors: Luo ZL, Hyde KD, Liu JK, Bhat DJ, Bao DF, Li WL, Su HY

Recieved: 26 February 2018, Accepted: 21 April 2018, Published: 21 May 2018

This is the second in a series of papers on lignicolous freshwater fungi from China. In this paper, eight fresh collections of asexual morphs of Distoseptispora, isolated from submerged wood in northwestern Yunnan Province, China, are characterized based on morphological characters and phylogenetic analyses of combined ITS, LSU, RPB2 and TEF1α sequence data. Four new Distoseptispora species (D. cangshanensis, D. obpyriformis, D. rostrata and D. submersa) are introduced, described and illustrated, with notes on their taxonomy and phylogeny. Newly generated molecular data of Distoseptispora fluminicola is also provided. We also provide a unified method for studying lignicolous freshwater fungi to standardize the findings of future Asian studies.

Keywords: Asexual fungi – Methodology – Phylogeny – Sordariomycetes – Taxonomy

 

3. High undescribed diversity of Amanita section Vaginatae in northern Thailand

Authors: Thongbai B, Hyde KD, Lumyong S, Raspé O

Recieved: 23 May 2018, Accepted: 08 May 2018, Published: 21 May 2018

Amanita sect. Vaginatae is the most speciose section of Amanita subg. Amanita. However, to date only three species belonging to this section have been reported from northern Thailand. Here, we report on the study of Amanita sect. Vaginatae specimens collected in the years of 2012 to 2016. Remarkably, all fifteen specimens studied belong to nine species new to science, which were identified based on morphology and DNA sequence analyses of β-tubulin, nrLSU, nrITS, and rpb2 gene. Those nine species are fully described and illustrated with line drawings and color photographs. Morphological characteristics of related taxa are compared and discussed, and a dichotomous key of Amanita sect. Vaginatae in Thailand is provided.

Keywords: Amanitaceae – classification – distribution – ectomycorrhizal fungi – South–East Asia

 

4. Phylogeny and morphology of Helicotubeufia gen. nov., with three new species in Tubeufiaceae from aquatic habitats

Authors: Liu JK, Lu YZ, Cheewangkoon R, To-Anun C

Recieved: 11 April 2018, Accepted: 10 May 2018, Published: 21 May 2018

We are participating in an investigation of freshwater fungi along a north-south latitudinal gradient in the Asian region. Five new collections of asexual and sexual morphs of Tubeufiaceae from decaying wood in freshwater streams were obtained from China and Thailand. Morphologically, they line well with Tubeufiaceae in having superficial, solitary, scattered, subglobose to ellipsoidal-ovate, dark brown to black ascomata; cylindrical asci with hyaline, fusiform, multi-septate, slightly curved and guttulate ascospores and hyphomycetous helicosporous asexual morphs. Phylogenetic analyses based on combined LSU, ITS and TEF1α sequences data indicate that they formed a monotypic clade among the genera of Tubeufiaceae, but as a phylogenetically distinct lineage. Therefore, we introduce a new genus Helicotubeufia gen. nov, with three species (H. guangxiensis, H. hydei and H. jonesii) to accommodate these new taxa. Detailed descriptions and illustrations are provided, as well as the comparisons with similar taxa.

Keywords: 4 new taxa – asexual morph – Dothideomycetes – freshwater – Taxonomy

 

5. Alternative approach to management of Rhizopus rot of peach (Prunus persica L.) using the essential oil of Thymus vulgaris (L.)

Authors: Taheri P, Ndam LM, Fujii Y

Recieved: 18 March 2018, Accepted: 16 May 2018, Published: 25 May 2018

A great proportion of peach fruit production is lost yearly because of Rhizopus soft rot caused by Rhizopus stolonifer. In developed countries, consumer preference to organic produce is growing and many produce-importing countries are enforcing strict regulations regarding minimum fungicide levels in fruits. Postharvest fruit-pathogenic fungi are developing resistance to synthetic fungicides and the indiscriminate disposals of these fungicides is worrying. Hence, the objective of this study was to evaluate the efficacy of the essential oil of Thymus vulgaris for the control of R. stolonifer growth on Peach fruits under in vitro and in vivo conditions. Treatments consisted of five concentrations of the essential oil of T. vulgaris ranging from 0–800 μL/L. The essential oil of T. Vulgaris at all concentrations inhibited R. stolonifer growth in a dose-dependent manner ranging from 94.280% at 800 μL/L to 82.230% at 200 μL/L. Treated-fruits reserved their marketable qualities with lower decay severity scores, higher total soluble solids, anthocyanin and carbohydrate contents compared to control. This study has affirmed that the essential oil of T. vulgaris is a viable alternative  to synthetic fungicides and should therefore be prioritised in the control of postharvest loses of fruits and vegetables.

Keywords: Bioactivity – Rhizopus Rot – Postharvest Disease – Essential oils – Stone fruit

 

6. Erratum to: Mycosphere notes 169–224

Authors: Hyde KD, Chaiwan N, Norphanphoun C, Boonmee S, Camporesi E, Chethana KWT, Dayarathne MC, de Silva NI, Dissanayake AJ, Ekanayaka AH, Hongsanan S, Huang SK, Jayasiri SC, Jayawardena R, Jiang HB, Karunarathna A, Lin CG, Liu JK, Liu NG, Lu YZ, Luo ZL, Maharachchimbura SSN, Manawasinghe IS, Pem D, Perera RH, Phukhamsakda C, Samarakoon MC, Senwanna C, Shang QJ, Tennakoon DS, Thambugala KM, Tibpromma, S, Wanasinghe DN, Xiao YP, Yang J, Zeng XY, Zhang JF, Zhang SN, Bulgakov TS, Bhat DJ, Cheewangkoon R, Goh TK, Jones EBG, Kang JC, Jeewon R, Liu ZY, Lumyong S, Kuo CH, McKenzie EHC, Wen TC, Yan JY, Zhao Q

Recieved: 30 May 2018, Accepted: 30 May 2018, Published: 30 May 2018

Erratum to Mycosphere 9(2), 271–430, Doi 10.5943/mycosphere/9/2/8

In the publication, on page 291, the phylogram in Figure 8 was published with the species name. ‘Ascochyta nepetigena MFLUCC 18-0344’ which should instead be ‘Ascochyta clinopodiicola MFLUCC 18-0344’

 

Keywords: N/A

 

7. Updates to Finnish aphyllophoroid funga (Basidiomycota): new species and range extensions

Authors: Kunttu P, Juutilainen K, Helo T, Kulju M, Kekki T, Kotiranta H

Recieved: 25 February 2018, Accepted: 24 May 2018, Published: 30 May 2018

The knowledge of Finnish aphyllophoroid funga has increased substantially in recent years. In this article we present six species new to Finland: Cristinia (cf.) rhenana Grosse-Brauckm., Hyphodontiella hauerslevii K.H. Larss. & Hjortstam, Leptosporomyces montanus (Jülich) Ginns & M.N.L Lefebvre, Osteina obducta (Berk.) Donk, Sebacina helvelloides (Schwein.) Burt, and Tulasnella brinkmannii sensu lato Bres. The finding of Osteina obducta is the first record in Northern Europe. The article also contributes new records of 56 nationally rare species (maximum ten previous records in Finland). Additionally, we list 110 regionally new species, found for the first time from a certain subzone of the boreal vegetation zones in Finland. Every record is enclosed with notes on the substrate. Furthermore, the ecology and distribution of rare species are discussed.

Keywords: aphyllophorales – biogeography – clavarioids – corticioids – polypores – wood-inhabiting fungi

 

8. Deniquelata vittalii sp. nov., a novel Indian saprobic marine fungus on Suaeda monoica and two new records of marine fungi from Muthupet mangroves, East coast of India

Authors: Devadatha B, Sarma VV, Ariyawansa HA, Gareth Jones EB

Recieved: 06 March 2018, Accepted: 18 April 2018, Published: 15 June 2018

Deniquelata vittalii, a novel species of marine fungi in the genus Deniquelata, found saprobic on a decaying woody stem of the halophyte Suaeda monoica, collected from Muthupet mangroves, southeast coast of India is described and illustrated in this paper. Morphologically D. vittalii resembles D. barringtoniae, but it is distinct in having larger ascomata, asci and golden yellow to dark brown ascospores with 3–6 transverse septa. Phylogenetic analyses inferred from combined LSU, SSU and ITS datasets indicate that D. vittalii shares a sister relationship with D. barringtoniae with high statistical support and forms a strongly supported monophyletic clade. Both morphological differences and DNA based sequence data strongly support the establishment of the new taxon. New records of Farasanispora avicenniae and Hysterium rhizophorae are also reported in this paper supplemented with molecular sequence data.

Keywords: Dothideomycetes – Didymosphaeriaceae – Pleosporales – Mangrove Fungi – Molecular phylogeny

 

9. Colletotrichum acidae sp. nov. from northern Thailand and a new record of C. dematium on Iris sp.

Authors: Samarakoon MC, Peršoh D, Hyde KD, Bulgakov TS, Manawasinghe IS, Jayawardena RS, Promputtha I

Recieved: 01 April 2018, Accepted: 07 June 2018, Published: 19 June 2018

Colletotrichum has a wide host range and distribution and its species are pathogens, endophytes and saprobes. Investigations of Colletotrichum species in both tropical and temperate regions are still needed as much novelty remains to be discovered. A multi-locus phylogenetic analyses of ITS, GAPDH, CHS-1, ACT and TUB2 sequence data combined with morphology, revealed a new species, C. acidae on Phyllanthus acidus, belonging to the C. truncatum species complex. A new Russian record for C. dematium on Iris sp. was also revealed. A combination of sequence data handling tools in the ARB database was used for the phylogenetic analyses and is provided in the appendix. The new species is described and illustrated in this paper and compared with taxa in the C. truncatum species complex.

Keywords: 1 new species – molecular phylogeny – saprobe – taxonomy

 

10. The genus Pluteus (Basidiomycota, Agaricales, Pluteaceae) from Republic of São Tomé and Príncipe, West Africa

Authors: Desjardin DE, Perry BA

Recieved: 02 March 2018, Accepted: 07 April 2018, Published: 25 June 2018

Six species of Pluteus are reported from the African island nation, Republic of São Tomé and Príncipe. Two represent new species (P. hirtellus, P. thomensis) and the other four represent new distribution records. Comprehensive descriptions, line drawings, colour photographs, comparisons with allied taxa, a dichotomous key to aid identification, and a phylogenetic analysis of pertinent Pluteus species based on ITS rDNA sequence data are provided.

Keywords: 2 new species – fungal diversity – Gulf of Guinea – mushrooms – pluteoid fungi – taxonomy

 

About Mycosphere

Mycosphere publishes reviews, research articles, methodology papers, taxonomic works such as monographs, which are relevant to fungal biology, including lichens. The official journal language is English.

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