Diaporthe psoraleae-pinnatae Crous & M. J. Wingf.

Diaporthe psoraleae-pinnatae Crous & M. J. Wingf. , Persoonia 31: 205 (2013)

Suppl. material 5

Specimens examined.

China • Beijing, Changping District, Heishanzhai Village , from branches of J. regia , Y. Zhang, L. L. Zhao and L. Zhang, 26 August 2022 (HSZ-1, culture CGMCC 3.28292 View Materials ; HSZ-5, culture CGMCC 3.28293 View Materials , CGMCC 3.28296 View Materials ) .

Notes.

Diaporthe psoraleae-pinnatae was first described from dieback branches of Psoralea pinnata in South Africa ( Crous et al. 2013). Recently, the entire section Psoraleae-pinnatae has been identified as a single species and named Diaporthe psoraleae-pinnatae , with D. aquatica , D. bauhiniae , D. ellipsospora , D. incomplete , D. jinxiu , D. rhoina , D. shaanxiensis , and D. varians all treated as its synonyms ( Dissanayake et al. 2024). Phylogenetically, three isolates clustered together with D. psoraleae-pinnatae (Fig. 4 View Figure 4 ); the base pair similarity shows 100 % (469 / 469) on cal, 97.7 % (452 / 452) on his, 97 % (508 / 524) on ITS, 100 % (329 / 329) on tef 1 - α, and 100 % (470 / 470) on tub 2 compared to the ex-type of D. psoraleae-pinnatae . Morphologically, conidiogenous cells and alpha conidia are similar to the ex-type isolate of D. psoraleae-pinnatae (6–19 × 1.5–2.5 vs. 8–15 × 2–3 μm) and (7.5–10.5 × 2.0–3.0 vs. 9–10 × 2.5–3 μm) (Table 1 View Table 1 ) ( Crous et al. 2013). In this study, D. psoraleae-pinnatae was collected from Beijing. This is the first report of D. psoraleae-pinnatae occurring on J. regia .