Apiospora lophatheri S. J. Li & C. M. Tian

Apiospora lophatheri S. J. Li & C. M. Tian , MycoKeys 99: 297–317 (2023)

Fig. 6 View Figure 6

Description.

Asexual morph: On WA, hyphae of smooth, hyaline, branched, septate, 1–5 µm diam. hyphae (n = 30). Conidiogenous cells subglobose to ampulliform, doliiform, clavate, erect, aggregated in clusters on hyphae, smooth, branched, 3–14 × 1.5–3.5 µm (x = 8.5 × 6 µm, n = 30). Conidia globose to subglobose, occasionally elongated to ellipsoidal, lenticular, with a longitudinal germ slit, brown to dark brown, smooth, 4–6.5 × 3–6 µm (x = 5.5 × 5 µm, n = 30). Sexual morph: Not observed.

Culture characteristics.

Colonies on PDA attaining 5 cm diam. after 4 days at 25 ° C, thick, dense, margin undulate and irregular, diffuse yellow pigment, surface with patches of grey aerial mycelia, and reverse yellow.

Specimens examined.

China • Guizhou Province, Guiyang City , on diseased bamboo branch, 5 June 2022, K. M. Yu, living cultures: GUCC 21.11 . and GUCC 21.12 .

Notes.

Ap. lophatheri was isolated from Lophatherum gracile in China ( Li et al. 2023). Phylogenetic analyses indicated that the two new isolates ( GUCC 21.11 and GUCC 21.12 ) clustered together with Ap. lophatheri with high support values (ML / BI = 100 / 0.99) (Fig. 1 View Figure 1 ). Morphologically, our collection has similar conidia to Ap. lophatheri (4–6.5 × 3–6 µm (x = 5.5 × 5 µm vs. 5.1–8.9 × 4.6–7.7 µm) ( Li et al. 2023). Thus, these isolates were identified as Ap. lophatheri , and bamboo as a new host record.