Diatrypella macrospora sp. nov. and new records of diatrypaceous fungi from Iran

Mehrabi, Mehdi; Hemmati, Roghayeh; Vasilyeva, Larissa N.; Trouillas, Florent P.

doi:10.11646/phytotaxa.252.1.4

Cited by 26 publications

(20 citation statements)

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“…This study introduces a new genus, Paraeutypella and accepts 22 genera in Diatypaceae. According to the previous analyses of combined ITS and β-tubulin sequence data, the genus Eutypella has been often identified as polyphyletic in Diatrypaceae ( Trouillas et al 2011 , Mehrabi et al 2016 , Mehrabi et al 2019 , Dayarathne et al 2016 , Dayarathne et al 2020a , Dayarathne et al 2020b ) and determined in our study as well (Fig. 1 ).…”

Section: Discussionsupporting

confidence: 82%

“… Eutypella citricola was described by Spegazzini (1898) from Citrus in Argentina and has since been reported to cause dieback on various woody plants in warm temperate and tropical regions ( Farr and Rossman 2020 ). Eutypella citricola strains have previously been isolated from hosts such as Citrus limon , C. sinensis , C. paradisi , Salix spp., Schinus molle , Ulmus procera and Vitis vinifera ( Trouillas et al 2011 , Mehrabi et al 2016 ). In our study, we provide additional information for P. citricola from dead stems of Acer ( Sapindaceae ) in China.…”

Section: Taxon Treatmentsmentioning

confidence: 99%

“…According to phylogenetic analysis, KUMCC 20–0024 closely groups with a collection of E. citricola (IRAN 2349C), which was collected on dead branches of Salix sp. ( Salicaceae ) in Gilan Province, Iran ( Mehrabi et al 2016 ) (Fig. 1 ).…”

Section: Taxon Treatmentsmentioning

confidence: 99%

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Paraeutypella guizhouensis gen. et sp. nov. and Diatrypella longiasca sp. nov. (Diatrypaceae) from China

Dissanayake¹,

Wijayawardene²,

Dayarathne³

et al. 2021

BDJ

669

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In this study, we introduce a novel genus, Paraeutypella, of the family Diatrypaceae comprising three species viz. Paraeutypella guizhouensis sp. nov. and P. citricola (basionym: Eutypella citricola) and P. vitis (basionym: Sphaeria vitis). Diatrypella longiasca sp. nov. is also introduced, which forms a distinct clade in Diatrypella sensu stricto. The discovery of this new genus will contribute to expanding the knowledge and taxonomic framework of Diatrypaceae (Xylariales). Generic delimitations in Diatrypaceae are unsettled because the phylogeny has yet to be resolved using extensive taxon sampling and sequencing of ex-type cultures. During an investigation of xylarialean fungi, we collected eutypella-like fungi which is distinct from Eutypella sensu stricto in our phylogenetic analyses (ITS and β-tubulin), thus, introduced as Paraeutypella guizhouensis gen. et sp. nov.. Paraeutypella is characterised by having 4–25 perithecia in a stroma each with 3–6 sulcate, long ostiolar necks. Paraeutypella citricola comb. nov. (basionym: Eutypella citricola) is introduced on Acer sp. from China. Diatrypella longiasca sp. nov. is introduced as a new species in Diatrypella sensu stricto. which has 2–5 ascomata per stroma and long ascospores, unusual when compared to other Diatrypella species and distinct phylogenetically.

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Section: Discussionsupporting

confidence: 82%

Section: Taxon Treatmentsmentioning

confidence: 99%

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Paraeutypella guizhouensis gen. et sp. nov. and Diatrypella longiasca sp. nov. (Diatrypaceae) from China

Dissanayake¹,

Wijayawardene²,

Dayarathne³

et al. 2021

BDJ

669

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“…There are 144 epithets of Diatrypella listed in Index Fungorum (2020). Diatrypella is characterised by conical or truncate, cushion-like or discoid stromata, which are usually delimited by a black zone on host tissues, perithecial ascomata, umbilicate or sulcate ostioles, and numerous small ovoid to allantoid ascospores (Simmons 1948;Rao 1964;Vasilyeva and Stephenson 2005;Mehrabi et al 2016). Diatrypella species have a libertella-like asexual morph (Kirk et al 2008).…”

Section: Diatrypaceae Nitschkementioning

confidence: 99%

Fungal diversity notes 1151–1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa

et al. 2020

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Fungal diversity notes is one of the important journal series of fungal taxonomy that provide detailed descriptions and illustrations of new fungal taxa, as well as providing new information of fungal taxa worldwide. This article is the 11th contribution to the fungal diversity notes series, in which 126 taxa distributed in two phyla, six classes, 24 orders and 55 families are described and illustrated. Taxa in this study were mainly collected from Italy by Erio Camporesi and also collected from China, India and Thailand, as well as in some other European, North American and South American countries. Taxa described in the present study include two new families, 12 new genera, 82 new species, five new combinations and 25 new records on new hosts and new geographical distributions as well as sexual-asexual reports. The two new families are Eriomycetaceae (Dothideomycetes, family incertae sedis) and Fasciatisporaceae (Xylariales, Sordariomycetes). The twelve new genera comprise Bhagirathimyces (Phaeosphaeriaceae), Camporesiomyces (Tubeufiaceae), Eriocamporesia (Cryphonectriaceae), Eriomyces (Eriomycetaceae), Neomonodictys (Pleurotheciaceae), Paraloratospora (Phaeosphaeriaceae), Paramonodictys (Parabambusicolaceae), Pseudoconlarium (Diaporthomycetidae, genus incertae sedis), Pseudomurilentithecium (Lentitheciaceae), Setoapiospora (Muyocopronaceae), Srinivasanomyces (Vibrisseaceae) and Xenoanthostomella (Xylariales, genera incertae sedis). The 82 new species comprise Acremonium chiangraiense, Adustochaete nivea, Angustimassarina camporesii, Bhagirathimyces himalayensis, Brunneoclavispora camporesii, Camarosporidiella camporesii, Camporesiomyces mali, Camposporium appendiculatum, Camposporium multiseptatum, Camposporium septatum, Canalisporium aquaticium, Clonostachys eriocamporesiana, Clonostachys eriocamporesii, Colletotrichum hederiicola, Coniochaeta vineae, Conioscypha verrucosa, Cortinarius ainsworthii, Cortinarius aurae, Cortinarius britannicus, Cortinarius heatherae, Cortinarius scoticus, Cortinarius subsaniosus, Cytospora fusispora, Cytospora rosigena, Diaporthe camporesii, Diaporthe nigra, Diatrypella yunnanensis, Dictyosporium muriformis, Didymella camporesii, Diutina bernali, Diutina sipiczkii, Eriocamporesia aurantia, Eriomyces heveae, Ernakulamia tanakae, Falciformispora uttaraditensis, Fasciatispora cocoes, Foliophoma camporesii, Fuscostagonospora camporesii, Helvella subtinta, Kalmusia erioi, Keissleriella camporesiana, Keissleriella camporesii, Lanspora cylindrospora, Loratospora arezzoensis, Mariannaea atlantica, Melanographium phoenicis, Montagnula camporesii, Neodidymelliopsis camporesii, Neokalmusia kunmingensis, Neoleptosporella camporesiana, Neomonodictys muriformis, Neomyrmecridium guizhouense, Neosetophoma camporesii, Paraloratospora camporesii, Paramonodictys solitarius, Periconia palmicola, Plenodomus triseptatus, Pseudocamarosporium camporesii, Pseudocercospora maetaengensis, Pseudochaetosphaeronema kunmingense, Pseudoconlarium punctiforme, Pseudodactylaria camporesiana, Pseudomurilentithecium camporesii, Pseudotetraploa rajmachiensis, Pseudotruncatella camporesii, Rhexocercosporidium senecionis, Rhytidhysteron camporesii, Rhytidhysteron erioi, Septoriella camporesii, Setoapiospora thailandica, Srinivasanomyces kangrensis, Tetraploa dwibahubeeja, Tetraploa pseudoaristata, Tetraploa thrayabahubeeja, Torula camporesii, Tremateia camporesii, Tremateia lamiacearum, Uzbekistanica pruni, Verruconis mangrovei, Wilcoxina verruculosa, Xenoanthostomella chromolaenae and Xenodidymella camporesii. The five new combinations are Camporesiomyces patagoniensis, Camporesiomyces vaccinia, Camposporium lycopodiellae, Paraloratospora gahniae and Rhexocercosporidium microsporum. The 22 new records on host and geographical distribution comprise Arthrinium marii, Ascochyta medicaginicola, Ascochyta pisi, Astrocystis bambusicola, Camposporium pellucidum, Dendryphiella phitsanulokensis, Diaporthe foeniculina, Didymella macrostoma, Diplodia mutila, Diplodia seriata, Heterosphaeria patella, Hysterobrevium constrictum, Neodidymelliopsis ranunculi, Neovaginatispora fuckelii, Nothophoma quercina, Occultibambusa bambusae, Phaeosphaeria chinensis, Pseudopestalotiopsis theae, Pyxine berteriana, Tetraploa sasicola, Torula gaodangensis and Wojnowiciella dactylidis. In addition, the sexual morphs of Dissoconium eucalypti and Phaeosphaeriopsis pseudoagavacearum are reported from Laurus nobilis and Yucca gloriosa in Italy, respectively. The holomorph of Diaporthe cynaroidis is also reported for the first time.

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“…In Iran, 15 species of diatrypaceous fungi have been recorded so far (Mehrabi, Hemmati, Vasilyeva, & Trouillas, 2016). However, the occurrence of the genus Cryptosphaeria has not previously been recorded in Iran.…”

Section: Introductionmentioning

confidence: 99%

First report of Cryptosphaeria pullmanensis as causal agent of Cryptosphaeria canker of Populus nigra in Iran

2017

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A diatrypaceous fungus was isolated consistently from cankers on Populus nigra trees showing dieback symptoms in Kohgiluyeh Boyer-Ahmad, Zanjan and Esfahan provinces in Iran. Morphological characteristics and phylogenetic analyses of the ITS region of the rDNA identified the taxon as Cryptosphaeria pullmanensis. Pathogenicity tests conducted in potted 3-month-old cuttings of P. nigra confirmed Koch's postulates and revealed that C. pullmanensis caused canker on this host. This is the first report of C. pullmanensis causing a canker disease on P. nigra in Iran.2 weeks in the dark at 24°C, covering a 60-mm Petri dish after 8 days ( Figure 1i). Teleomorph (sexual stage) and anamorph (asexual stage) morphologies of the isolates from Iran were in close agreement with morphological descriptions of Glawe (1984) and Trouillas et al. (2010). The anamorph of the fungus also resembles the form genus CytosporaEhrenb. with respect to the multichambered conidiomata and allantoid conidia (Glawe, 1984). However, C. pullmanensis can be distinguished from species of Cytospora by having annellides, sympodulate, longer and larger conidia (Glawe, 1984;. A total of 20 strains associated with Cryptosphaeria canker were isolated from P. nigra trees growing in three provinces of Iran. Single isolates of both types of morphs yielded identical colonies, showing that both types of morphs belonged to the same fungus. Three isolates (one from each district surveyed) isolated from cankers and two additional strains (IRAN 2426C and IRAN 2512C) isolated from conidiomata and ascomata on the host tissue were sequenced. Five new ITS sequences were obtained and aligned with 21 reference sequences retrieved from GenBank (Table 1). The length of our sequences was between 530 and 540 bp and was identical among the five isolates. Based on a BLASTn search of NCBI GenBank nucleotide database, the closest sequence to our fungus was C. pullmanensis (GenBank KT428044; identities = 530/531(99%), gaps = 1/531(0%)). Isolates obtained in this study grouped in a well-supported clade (bootstrap value = 100%) with C. pullmanensis (Figure 2). Based on both morphology and ITS sequencing, the occurrence of this pathogen in Iran was confirmed.In the pathogenicity test, cankers with an average size of 1-3 cm in length, 1-2 cm wide and 0.3-0.6 mm depth formed after 5 months and were similar to those occurring on naturally infected stems.Following removal of the bark, the necrotic phloem was exposed and a dark brown discoloration of the wood was visible (Figure 1f-h).The fungus produced asexual fruiting bodies and spore tendrils around the inoculation site after 5 months that were similar to those occurring on infected hosts described above (Figure 1f). The pathogen was re-isolated consistently from the lesions, which confirmed Koch's postulates. Percent fungal recovery for all of three isolates tested was 100%, whereas no fungi were isolated from the control plants. Pathogenicity tests using three isolates of different origin showed no differences in virulence or pathoge...

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Diatrypella macrospora sp. nov. and new records of diatrypaceous fungi from Iran

Cited by 26 publications

References 0 publications

Paraeutypella guizhouensis gen. et sp. nov. and Diatrypella longiasca sp. nov. (Diatrypaceae) from China

Paraeutypella guizhouensis gen. et sp. nov. and Diatrypella longiasca sp. nov. (Diatrypaceae) from China

Fungal diversity notes 1151–1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa

First report of Cryptosphaeria pullmanensis as causal agent of Cryptosphaeria canker of Populus nigra in Iran

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