Jalapriya aquaticum D.F. Bao, X. Fu, H.Y. Su & Z.L. Luo, 2021

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

Jalapriya aquaticum D.F. Bao, X. Fu, H.Y. Su & Z.L. Luo, 2021 sp. nov.

Materials

Type status: Holotype. Taxon: scientificName: Jalapriya aquaticum; phylum: Ascomycota ; class: Dothideomycetes ; order: Pleosporales ; family: Dictyosporiaceae ; genus: Jalapriya ; Location : locationRemarks: China, Yunnan Province, Dali , Cangshan Mountain , Lingquan stream, on decaying wood submerged in stream, April 2019; Event: habitat: Saprobic on decaying wood submerged in stream; Record Level: collectionID: 1LQX III H Z-7-1; collectionCode: S-2101

Description

Saprobic on decaying wood submerged in stream. Asexual morph: Hyphomycetous (Fig. 3 ). Colonies punctiform, sporodochial, velvety, dark brown to black. Conidiophores micronematous, subhyaline to pale brown hyphae, unbranched, thin-walled, smooth. Mycelium immersed, composed of brown, smooth, thin-walled, septate. Conidiogenous cells holoblastic, integrated, terminal. Conidia acrogenous, solitary, cheiroid, pale to medium brown, with 3-4 rows of cells, rows converging at apex, apical cells with spherical-like appendages, the immature conidia are slightly curved and become straight after maturity. Two outer rows arising from a basal cell, rows not separating, each row consisting of 6-12 cells, the size of outer rows 29-53 × 6-8 μm (x̄ =45 × 5 μm, n = 30), excluding apical hyaline gelatinous appendages, the size of inner rows 22-44 × 4-8 μm (x̄ = 38 × 6 μm, n = 30). The size of conidia 22-53 × 16-24 µm. Sexual morph: Undetermined.

Culture characteristics

Conidia germinating on PDA within 24 h, germ tubes arising from the outermost cells of the conidium. Colonies on MEA covering 9 cm diam., in 4 weeks, at 28°C, white to cream. Sporulation not observed in culture.

Material examined

CHINA, Yunnan Province, Dali, Cangshan Mountain, Lingquan stream, 25.747501°N, 100.090989°E, on decaying wood submerged in stream, April 2019, Z.Q. Zhang, 1LQX III H Z-7-1 (S-2101) (HKAS 115807, holotype), ex-type living culture, KUNCC 21-10705 = DLUCC 2101 = CGMCC 3.20613; ibid. July 2019, Zhengquan Zhang, 2LQX III Z-56-1 H (S-2351), living culture, KUNCC 21-10706 = DLUCC 2101.

Etymology

Referring to the species collected from aquatic habitats.

Notes

In the phylogenetic analysis, J. aquaticum nested in Jalapriya and sister to J. toruloides . Morphologically, J. aquaticum is similar to J. Jalapriya inflata in having 3-4 rows of conidia, but differs from J. inflat in the shape of the conidia, the cells of J. inflata are fuller and more three-dimensional. J. inflata arranged more loosely in the rows of conidia and J. aquaticum packed more tightly. J. aquaticum has larger conidia than those of J. inflata (22-53 × 16-24 vs. 28.5-38 × 14.5-21.5 μm). Jalapriya quaticum similar to J. Jalapriya pulchra in having appendages on the apical cells of the conidia, but differs in the rows of J. aquaticum not being separable without manual force.

Figures

Figure 3. Jalapriya aquaticum (HKAS 115807, holotype). a Colonies on submerged wood; b Squash mount of conidioma; c-i Conidia; j Germinating conidium; k-l Culture on PDA from above and reverse. Scale bars: b, 40 μm; c-j, 20 μm.