Dictyocheirospora vinaya D'souza , Bhat & K.D. Hyde, 2016, Fungal Diversity 80: 465

Fu, Xi, Bao, Dan-Feng, Luo, Zong-Long, He, Xiu & Su, Hong-Yan, 2021, Two new species of Jalapriya and a new record, Dictyocheirospora vinaya from freshwater habitats in China, Biodiversity Data Journal 9, pp. 74295-74295 : 74295

Dictyocheirospora vinaya D'souza, Bhat & K.D. Hyde, 2016, Fungal Diversity 80: 465

Materials

Type status: Holotype. Taxon: scientificName: Dictyocheirospora vinaya; phylum: Ascomycota ; class: Dothideomycetes ; order: Pleosporales ; family: Dictyosporiaceae ; genus: Dictyocheirospora ; Location : locationRemarks: Thailand. Chiang Mai, Mushroom Research Centre , on submerged wood in a freshwater stream, 24 November 2013; Identification: identifiedBy: D’souza, Bhat & K.D. Hyde; Event: habitat: submerged wood in a freshwater stream; Record Level: type: MFLU 14-0264; collectionCode: MJD-26; source: https://doi.org/10.1007/s13225-016-0363-z

Description

Saprobic on decaying wood in streams. Asexual morph: Hyphomycetous (Fig. 4 ). Colonies punctiform, sporodochial, velvety, dark brown. Mycelium immersed, composed of pale brown, smooth, thin-walled septate, branched, 1-2 μm wide hyphae. Conidiophores 9-27 × 3-6 μm (x̄ = 15 × 5 μm, n = 18), micronematous to semi-macronematous, pale brown, smooth, thin-walled. Conidiogenous cells holoblastic, integrated, terminal, determinate, pale brown. Conidia solitary, terminal, cheiroid, 48-110 × 14-32 μm (x̄ = 73 × 22 μm, n = 30), pale brown, consisting of 7 rows of cells; rows digitate, arising from a basal cell, each arm consisting of 10-20 cells, distoseptate, constricted at septa, rows appressed when young, inwardly curved at the tip, palmately divergent when squashed, smooth-walled, guttulate. Sexual morph: Undetermined.

Culture characteristics

Conidia germinating on water agar within 24 h, germ tubes emerging from the basal cells of the conidium. Colonies on PDA covering 9 cm diam., in 4 weeks, at 28°C, with wavy margins, at first white, later becoming orange. Sporulating regions scattered, but mostly confined to the centre of the culture.

Material examined

CHINA, Yunnan Province, Nanpanjiang River, 24°33'57.48"N, 103°06'44.44"E, on decaying wood submerged in stream, 23 February 2018, X. He, NPJ H 3-2-1 (HKAS 115802); living culture KUNCC 21-10707.

Notes

Dictyocheirospora vinaya , the type species of Dictyocheirospora , was introduced by Boonmee et al. (2016). Dictyocheirospora vinaya is characterised by punctiform, dark brown colonies, pale brown, solitary, terminal, cheiroid conidia. Our fresh collection fits perfectly with the original description of D. vinaya ( Boonmee et al. 2016). Phylogenetic analyses showed that our strain (DLUCC 1674) clustered with the ex-type strain of D. vinaya with high bootstrap support (93% ML and 1.00 PP). ITS comparison between our strain and MFLUCC 14-0294 revealed that there is no difference in a total of 499 bp, comparison of LSU between our strain and MFLUCC 14-0294 revealed 3 bp differences in a total of 1252 bp. Thus, we identified our new collection as D. vinaya , based on both phylogeny and morphology. Dictyocheirospora vinaya MFLUCC 14-0294 collected from freshwater habitats in Thailand, while our new collection was collected from freshwater habitats in China. It is a new record for China.

Figures

Figure 4. Dictyocheirospora vinaya (HKAS 115802). a Colonies on submerged wood; b Squash mount of conidioma; c-k Conidia; l Germinating conidium; m-n Culture on PDA from above and reverse. Scale bars: b, 50 μm; c-d, h-k, 40 μm; e-g, l, 30 μm.