Recent Papers

Volume 8 Issue 10 (November/December)

5. Mycosphere Essays 20: Therapeutic potential of Ganoderma species: Insights into its use as traditional medicine
Hapuarachchi et al. (2017)

4. The edible wide mushrooms of Agaricus section Bivelares from Western China
Zhang et al. (2017)

3. Metabolomics reveals changes in metabolite concentrations and correlations during sexual development of Eurotium cristatum (synonym: Aspergillus cristatus)
Ren et al. (2017)

2. Neophyllachora gen nov. (Phyllachorales), three new species of Phyllachora from Poaceae and resurrection of Polystigmataceae (Xylariales)
Dayarathne et al. (2017)

1. Lignicolous freshwater fungi from China I : Aquadictyospora lignicola gen. et sp. nov. and new record of Pseudodictyosporium wauense from northwestern Yunnan Province
Li et al. (2017)

Volume 8 Issue 6 (SI Tropical Wood Degrading Fungi)

11. Aegis boa (Polyporales, Basidiomycota) a new neotropical genus and species based on morphological data and phylogenetic evidences
Gómez-Montoya et al. (2017)

Volume 8 Issue 2 (SI Botryosphaeriales)

11. Two new endophytic species of Phyllosticta (Phyllostictaceae, Botryosphaeriales) from Southern China
Lin et al. (2017)

10. Molecular characterization and pathogenicity of Diplodia corticola and other Botryosphaeriaceae species associated with canker and dieback of Quercus suber in Algeria
Smahi et al. (2017)

Volume 8 Issue 9 (September/October)-closed

12. Dendryphiella fasciculata sp. nov. and notes on other Dendryphiella species
Liu et al. (2017)

11. New species and records of Bipolaris and Curvularia from Thailand
Marin-Felix et al. (2017)

Volume 7 - Issue 8 (SI Colletotrichum)


Article Number 1
Title

Discovering and dealing with the unknown aspects of Colletotrichum

Authors

RS Jayawardena, JY Yan, L Cai, BD Shenoy, G Sharma

Received 01 May 2016
Accepted 31 May 2016
Published Online 31 May 2016
Corresponding Author
Abstract
Keywords
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Article Number 2
Title

Mycosphere Essay 6: Why is it important to correctly name Colletotrichum species?

Authors

Jayawardena RS, Hyde KD, Jeewon R, Li XH, Liu M, Yan JY

Received 05 May 2016
Accepted 18 June 2016
Published Online 23 June 2016
Corresponding Author agriculture – evolutionary history – nomenclature – plant pathology – species complex – taxonomy
Abstract

Colletotrichum is one of the most important plant pathogenic genera worldwide. There have been many studies on this genus, as species are important in many disciplines, especially in plant disease diagnostics. In this paper we discuss the importance of accurately naming Colletotrichum species. In most cases we conclude that it is important to know the correct identity of species, as the name is the key to all data for that taxon. The entire knowledge and data on a species relies on it being correctly named. The naming of Colletotrichum species have become “mostly fit-for-purpose”, with the use of molecular data. The aim of this contribution is to illustrate the importance of naming Colletotrichum species using several essential examples.

Keywords agriculture – evolutionary history – nomenclature – plant pathology – species complex – taxonomy
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Article Number 3
Title

Colletotrichum systematics: Past, present and prospects

Authors

Sharma G, Shenoy BD

Received 20 August 2016
Accepted 01 November 2016
Published Online 08 November 2016
Corresponding Author Gunjan Sharma – gunjansharma128@gmail.com
Abstract

Colletotrichum is one of the serious plant pathogens, with worldwide distribution, causing anthracnose in economically important crops. Every year many research papers and reports are published on Colletotrichum phylogeny and taxonomy. Many novel Colletotrichum species have been described based on morphological characters and multi-locus phylogenetic analysis. There is, however, a need to develop a consensus among researchers on the gene sets to be used in sequence-based identification and resolution of cryptic species of Colletotrichum. Though a polyphasic approach is recommended, it is not fully enforced in many publications. In this paper, the methods prevalent in Colletotrichum systematics are discussed, which is followed by our suggestions towards developing a stable and reliable classification system for Colletotrichum.

Keywords anthracnose – barcoding – identification – morphology – new taxa – polyphasic taxonomy
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Article Number 4
Title

Assessing the genetic diversity of grape ripe rot pathogen Colletotrichum using SRAP markers.

Authors

Huang YQ, Zang CQ, Li LX, Liang CH, Bai YJ, Xie JH

Received 27 September 2016
Accepted 06 November 2016
Published Online 10 November 2016
Corresponding Author Liang CH – address: liangchunhao99@126.com
Abstract

Grape ripe rot caused by species of Colletotrichum is one of the most serious grape diseases worldwide. Information on the genetic variation and population structure of grape ripe rot pathogens would help to develop the theoretical framework of disease occurrence and prevention, epidemic dynamics, and control technologies. In this study, twenty five Colletotrichum gloeosporioides strains isolated from grape diseased samples that were collected from 17 different locations in China were analyzed using six sequence-related amplified polymorphism (SRAP) primer pairs. In total, 164 discernible bands were obtained. Of which 156 showed high polymorphism at a rate of 95.12%. Cluster analysis revealed that the 25 C. gloeosporioides strains had a close genetic relationship and rich genetic diversity with similarity coefficients that ranged from 0.61 to 0.95. The data also demonstrated that no correlation was identified between the isolates or SRAP groups and their geographical distribution. 

Keywords cluster analysis – Colletotrichum gloeosporioides – polymorphic richness – similarity coefficient
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Article Number 5
Title

Colletotrichum aracearum and C. camelliae-japonicae, two holomorphic new species from China and Japan

Authors

Hou LW, Liu F, Duan WJ, Cai L

Received 01 October 2016
Accepted 27 November 2016
Published Online 03 December 2016
Corresponding Author Lei Cai – cail@im.ac.cn
Abstract

Colletotrichum aracearum sp. nov. from Monstera delociosa and Philodenron selloum, and C. camelliae-japonicae sp. nov. from Camellia japonica, are described in this paper. Strains were isolated using single spore isolation technique from the spore masses formed on leaf lesions, and successfully induced for sexual states in cultivation. Morphological comparisons were made with related species. Phylogenetic relationships were inferred based on ITS, ACT, TUB2, and GAPDH sequences. C. camelliae-japonicae belongs to the C. boninense species complex, while C. aracearum does not nest within any currently known species complex but forms a sister clade to C. cliviae. This is the first report of Colletotrichum species from hosts Monstera delociosa and Philodenron selloum.

Keywords Anthracnose – Camellia – Monstera – Morphology – Philodenron – Phylogeny – Taxonomy
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Article Number 6
Title

Whole genome re-sequencing and transcriptome analysis of the Stylosanthes Anthracnose pathogen Colletotrichum gloeosporioides reveal its characteristics

Authors

Huang HP, Ma S, Huang JH, Zheng JL, Yi KX

Received 01 October 2016
Accepted 27 November 2016
Published Online 03 December 2016
Corresponding Author Yi KX – Yikex@126.com
Abstract

Stylosanthes anthracnose is an important disease caused by Colletotrichum gloeosporioides, which affects the production and utilization of Stylosanthes species in the world. Despite their importance, little progress has been made in understanding Stylosanthes anthracnose pathogens due to their insufficient genomic and transcriptomic data. In the current study, whole genome re-sequencing of seven C. gloeosporioides strains was carried out together with next generation RNA sequencing of C. gloeosporioides strain CH008. Whole genome re-sequencing was conducted with reference to the genome of highly virulent C. gloeosporioides strain CH008. It resulted in 10.06 G of effective data, with a mean proportion of 67.40% genes mapped to the reference strain and an average genome coverage of 79.71%. A total of 2,149,030 single nucleotide polymorphisms, 178,620 insertions and deletions, and 654 structural variations were discovered on the genomes of the seven tested strains. Transcriptomic analysis produced approximately 30.5 million high quality reads assembled into 33,529 contigs and further integrated into 25,376 unigenes. All assembled sequences were annotated against public databases. A total of 12,398 unigenes were assigned to 61 sub-categories of Gene Ontology terms. Among them, 3,717 unigenes were identified and mapped onto 264 pathways against Kyoto Encyclopaedia of Genes and Genomes pathway database. This study provides the first comprehensive transcriptomic resource available for C. gloeosporioides. The genome assembly and the unigenes identified in the study will benefit further studies on functional genes involved in pathogenicity. Simple sequence repeat markers developed in this study will facilitate studies on marker-assisted genomic and pathogenic diversities of Colletotrichum gloeosporioides.

Keywords de novo transcriptome assembly – gene annotation – pathogenicity – pathway analysis– RNA sequencing – SSR
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Article Number 7
Title

Mycosphere Essay 16: Colletotrichum: Biological control, bio-catalyst, secondary metabolites and toxins

Authors

Jayawardena RS, Li XH, Liu M, Zhang W, Yan JY

Received 29 October 2016
Accepted 29 November 2016
Published Online 04 December 2016
Corresponding Author JiYe Yan – jiyeyan@vip.163.com
Abstract

The genus Colletotrichum has received considerable attention in the past decade because of its role as an important plant pathogen. The importance of Colletotrichum with regard to industrial application has however, received little attention from scientists over many years. The aim of the present paper is to explore the importance of Colletotrichum species as bio-control agents and as a bio-catalyst as well as secondary metabolites and toxin producers. Often the names assigned to the above four industrial applications have lacked an accurate taxonomic basis and this needs consideration. The current paper provides detailed background of the above topics.

Keywords biotransformation – colletotrichin – mycoherbicide – mycoparasites – pathogenisis – phytopathogen
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Article Number 8
Title

An account of Colletotrichum species associated with strawberry anthracnose in China based on morphology and molecular data

Authors

Jayawardena RS, Huang JK, Jin BC, Yan JY, Li XH, Hyde KD, Bahkali AH, Yin SL, Zhang GZ

Received 31 October 2016
Accepted 28 November 2016
Published Online 06 December 2016
Corresponding Author GZ Zhang – zhanggzh@cau.edu.cn
Abstract

Strawberry anthracnose is an important disease in China that results in significant economic losses. A number of Colletotrichum species are known to be pathogens of strawberry. A survey of strawberry fields in eight provinces of China was carried out to identify the causal agents of strawberry anthracnose. The disease mainly causes crown rot, leading to plant wilt and death in the nursery stage, after transplanting in green house, which makes anthracnose a major threat to strawberry production and quality. Multi-locus sequence analysis coupled with morphological assessment revealed that the disease-associated taxa belong to two Colletotrichum species complexes: Colletotrichum nymphaeae (acutatum species complex), C. fructicola and C. changpingense sp. nov. (gloeosporioides species complex). The novel species is introduced in this paper and illustrated. The new species is closely related to C. theobromicola and pathogenicity tests proved that it is pathogenic to the strawberry crown, fruits and leaves. 

Keywords C. nymphaeae – crown rot – molecular phylogeny – morphology – pathogen
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Article Number 9
Title

Identification and characterization of Colletotrichum species causing grape ripe rot in southern China

Authors

Lei Y, Tang XB, Jayawardena RS, Yan JY, Wang XD, Liu M, Chen T, Liu XM, Wang JC, Chen QX

Received 08 November 2016
Accepted 01 December 2016
Published Online 15 December 2016
Corresponding Author Chen QX – cqx0246@fafu.edu.cn
Abstract

Grape ripe rot is known to be causing serious losses in grapes in many countries. In order to clarify the species of pathogen causing grape ripe rot in southern China, 62 samples with ripe rot symptoms were collected from Fujian and Guizhou Provinces. Single spore isolation techniques resulted in 50 isolates of Colletotrichum species. Based on multigene data and morphology, 48 isolates were identified as C. viniferum and one isolate was identified as C. citri. A Colletotrichum species, sister to C. cliviae, was identified to be causing grape ripe rot. However, until further collections are made, this species will be remain as Colletotrichum sp. This is the first time that C. citri and the undetermined Colletotrichum species sister to C. cliviae have been reported to be associated with grape ripe rot in the world. 

Keywords China – Colletotrichum citri – Grape ripe rot – Identification – Pathogenicity
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Article Number 10
Title

Notes on currently accepted species of Colletotrichum

Authors

Jayawardena RS, Hyde KD, Damm U, Cai L, Liu M, Li XH, Zhang W, Zhao WS, Yan JY

Received 01 December 2016
Accepted 20 December 2016
Published Online 26 December 2016
Corresponding Author JY Yan – jiyeyan@vip.163.com
Abstract

Colletotrichum is an economically important plant pathogenic genus worldwide, but can also have endophytic or saprobic lifestyles. The genus has undergone numerous revisions in the past decades with the addition, typification and synonymy of many species. In this study, we provide an account of the 190 currently accepted species, one doubtful species and one excluded species that have molecular data. Species are listed alphabetically and annotated with their habit, host and geographic distribution, phylogenetic position, their sexual morphs and uses (if there are any known). There are eleven species complexes in Colletotrichum and 23 singleton species. The main characters of each species complex are detailed with illustrations. Phylogenetic trees are provided for the whole genus and each species complex. Genes and combination of genes that can be used for identification of the species complexes are suggested. Specific genes that can be used in species identification are given when possible.

Keywords Glomerellaceae – nomenclature – phylogeny – species complex – taxonomy
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Mycosphere publishes reviews, research articles, methodology papers, taxonomic works such as monographs, and checklists which are relevant to fungal biology, including lichens. The official journal language is English.

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