A new combination for the causal agent of tea anthracnose: Discula theae-sinensis (I. Miyake) Moriwaki &amp; Toy. Sato, comb. nov.

Moriwaki, Jouji; Sato, Toyozo

doi:10.1007/s10327-009-0183-z

Cited by 8 publications

(16 citation statements)

References 9 publications

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“…Moriwaki and Sato (2009) summarised the taxonomic history of this name and transferred G. theae-sinensis to Discula on the basis of DNA sequences. Sphaerella camelliae Cooke and its recombination Laestadia camelliae (Cooke) Berl.…”

Section: Resultsmentioning

confidence: 99%

“…Other Colletotrichum species reported from tea include C. “ theae-sinensis ”, an invalid recombination of Gloeosporium theae-sinensis I. Miyake, proposed by Yamamoto ( 1960 ). Moriwaki and Sato ( 2009 ) summarised the taxonomic history of this name and transferred G. theae-sinensis to Discula on the basis of DNA sequences. Sphaerella camelliae Cooke and its recombination Laestadia camelliae (Cooke) Berl.…”

Section: Resultsmentioning

confidence: 99%

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The Colletotrichum gloeosporioides species complex

Weir¹,

Johnston²,

Damm³

2012

Studies in Mycology

1,298

1,129

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The limit of the Colletotrichum gloeosporioides species complex is defined genetically, based on a strongly supported clade within the Colletotrichum ITS gene tree. All taxa accepted within this clade are morphologically more or less typical of the broadly defined C. gloeosporioides, as it has been applied in the literature for the past 50 years. We accept 22 species plus one subspecies within the C. gloeosporioides complex. These include C. asianum, C. cordylinicola, C. fructicola, C. gloeosporioides, C. horii, C. kahawae subsp. kahawae, C. musae, C. nupharicola, C. psidii, C. siamense, C. theobromicola, C. tropicale, and C. xanthorrhoeae, along with the taxa described here as new, C. aenigma, C. aeschynomenes, C. alatae, C. alienum, C. aotearoa, C. clidemiae, C. kahawae subsp. ciggaro, C. salsolae, and C. ti, plus the nom. nov. C. queenslandicum (for C. gloeosporioides var. minus). All of the taxa are defined genetically on the basis of multi-gene phylogenies. Brief morphological descriptions are provided for species where no modern description is available. Many of the species are unable to be reliably distinguished using ITS, the official barcoding gene for fungi. Particularly problematic are a set of species genetically close to C. musae and another set of species genetically close to C. kahawae, referred to here as the Musae clade and the Kahawae clade, respectively. Each clade contains several species that are phylogenetically well supported in multi-gene analyses, but within the clades branch lengths are short because of the small number of phylogenetically informative characters, and in a few cases individual gene trees are incongruent. Some single genes or combinations of genes, such as glyceraldehyde-3-phosphate dehydrogenase and glutamine synthetase, can be used to reliably distinguish most taxa and will need to be developed as secondary barcodes for species level identification, which is important because many of these fungi are of biosecurity significance. In addition to the accepted species, notes are provided for names where a possible close relationship with C. gloeosporioides sensu lato has been suggested in the recent literature, along with all subspecific taxa and formae speciales within C. gloeosporioides and its putative teleomorph Glomerella cingulata.Taxonomic novelties:Name replacement - C. queenslandicum B. Weir & P.R. Johnst. New species - C. aenigma B. Weir & P.R. Johnst., C. aeschynomenes B. Weir & P.R. Johnst., C. alatae B. Weir & P.R. Johnst., C. alienum B. Weir & P.R. Johnst, C. aotearoa B. Weir & P.R. Johnst., C. clidemiae B. Weir & P.R. Johnst., C. salsolae B. Weir & P.R. Johnst., C. ti B. Weir & P.R. Johnst. New subspecies - C. kahawae subsp. ciggaro B. Weir & P.R. Johnst. Typification: Epitypification - C. queenslandicum B. Weir & P.R. Johnst.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The Colletotrichum gloeosporioides species complex

Weir¹,

Johnston²,

Damm³

2012

Studies in Mycology

1,298

1,129

View full text Add to dashboard Cite

show abstract

“…When the lower part of a swollen conidium, including the short germ tube, is hidden by the trichome it resembles an appressorium. Other appressoria, which are produced from conidia on cellophane film, have also been reported (Moriwaki & Sato 2009). However, such appressoria have never been observed, in earlier (Ando & Hamaya 1986) or present studies on trichomes.…”

Section: Discussionmentioning

confidence: 94%

“…Discula theae-sinensis (I. Miyake) Moriwaki & Toy. Sato [syn. Gloeosporium theae-sinensis I. Miyake, Colletotrichum theae-sinensis (I. Miyake) Yamamoto] causes anthracnose on tea [Camellia sinensis (L.) Kuntze], which is the most common disease in Japanese tea cultivation (Moriwaki & Sato 2009). Previous studies (Ando & Hamaya 1986, Hamaya 1982 have shown that D. theae-sinensis have a unique infection process.…”

Section: Introductionmentioning

confidence: 99%

A Fluorescence Microscopic Study of the Infection Process of Discula theae-sinensis in Tea

Yamada

Sonoda

2014

JARQ

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“…Tea leaves are easily attacked by pathogens, leading to tree wilting and crop failure. There are many pathogens that attack tea plants, such as Colletotrichum spp., Pestalotiopsis spp., and Discula theae-sinensis 1 – 3 , of which Colletotrichum is the most important pathogenic genus. Colletotrichum species cause disease in an extremely wide range of hosts and live as endophytes in plants 4 .…”

Section: Introductionmentioning

confidence: 99%

Integrated transcriptomic and metabolomic analyses reveal the effects of callose deposition and multihormone signal transduction pathways on the tea plant-Colletotrichum camelliae interaction

Xiong

Hao

et al. 2020

Sci Rep

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Colletotrichum infects diverse hosts, including tea plants, and can lead to crop failure. Numerous studies have reported that biological processes are involved in the resistance of tea plants to Colletotrichum spp. However, the molecular and biochemical responses in the host during this interaction are unclear. Cuttings of the tea cultivar Longjing 43 (LJ43) were inoculated with a conidial suspension of Colletotrichum camelliae, and water-sprayed cuttings were used as controls. In total, 10,592 differentially expressed genes (DEGs) were identified from the transcriptomic data of the tea plants and were significantly enriched in callose deposition and the biosynthesis of various phytohormones. Subsequently, 3,555 mass spectra peaks were obtained by LC-MS detection in the negative ion mode, and 27, 18 and 81 differentially expressed metabolites (DEMs) were identified in the tea leaves at 12 hpi, 24 hpi and 72 hpi, respectively. The metabolomic analysis also revealed that the levels of the precursors and intermediate products of jasmonic acid (JA) and indole-3-acetate (IAA) biosynthesis were significantly increased during the interaction, especially when the symptoms became apparent. In conclusion, we suggest that callose deposition and various phytohormone signaling systems play important roles in the tea plant-C. camelliae interaction. Tea plant (Camellia sinensis (L.) O. Kuntze) is an important economic crop in China. Its fresh shoots and leaves contain abundant inclusions and are used as raw materials of tea, which is popular among many people. Tea leaves are easily attacked by pathogens, leading to tree wilting and crop failure. There are many pathogens that attack tea plants, such as Colletotrichum spp., Pestalotiopsis spp., and Discula theae-sinensis 1-3 , of which Colletotrichum is the most important pathogenic genus. Colletotrichum species cause disease in an extremely wide range of hosts and live as endophytes in plants 4. To date, 17 species of Colletotrichum have been reported to infect tea plants in China 5. Previous studies have suggested that Colletotrichum camelliae is a host-specific taxon occurring on Camellia 6. C. camelliae is regarded as the dominant species in Ca. sinensis and has high virulence 2,5. Most Colletotrichum species are hemibiotrophs that initially develop biotrophic hyphae inside a living host, which later transition to necrotrophic secondary mycelia 7,8. The progression of Colletotrichum growth in host plants includes germ tube growth, appressoria development and sporulation. When a spore lands on the surface of a host, it rapidly germinates and adapts to its environment. Then, the initiation of appressorium development is activated when the fungus perceives surface hardness 9. After the transition to the necrotrophic stage, secondary

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A new combination for the causal agent of tea anthracnose: Discula theae-sinensis (I. Miyake) Moriwaki & Toy. Sato, comb. nov.

Abstract: The causal agent of tea anthracnose, Gloeosporium theae-sinensis, was transferred to Discula based on morphological and molecular reidentification using living cultures.

Cited by 8 publications

References 9 publications

The Colletotrichum gloeosporioides species complex

The Colletotrichum gloeosporioides species complex

A Fluorescence Microscopic Study of the Infection Process of Discula theae-sinensis in Tea

Integrated transcriptomic and metabolomic analyses reveal the effects of callose deposition and multihormone signal transduction pathways on the tea plant-Colletotrichum camelliae interaction

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