Diaporthe citrichinensis F. Huang, K. D. Hyde & H. Y. Li

Zhao, Lili, Zhang, Lin, Ding, Yi, Li, Ming & Zhang, Ying, 2025, Diaporthe species (Sordariomycetes, Diaporthales) causing walnut blight and dieback in China, MycoKeys 122, pp. 197-221 : 197-221

publication ID	https://doi.org/10.3897/mycokeys.122.158807
DOI	https://doi.org/10.5281/zenodo.17106183
persistent identifier	https://treatment.plazi.org/id/C020B2EA-A5A6-5ABA-8ACF-3BF0E22494C1
treatment provided by	MycoKeys by Pensoft
scientific name	Diaporthe citrichinensis F. Huang, K. D. Hyde & H. Y. Li
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Treatment

Diaporthe citrichinensis F. Huang, K. D. Hyde & H. Y. Li , Fungal Divers 61: 247 (2013)

Suppl. material 3

Specimens examined.

China • Yunnan Province, Kunming City , from diseased branches of J. regia , Y. Ding, M. Li and L. L. Zhao, 23 February 2024 (YN-7, culture CGMCC 3.27759 View Materials ; YN-26, culture CGMCC 3.27753 View Materials ) .

Notes.

Diaporthe citrichinensis was first described from decaying wood of Citrus unshiu in China ( Huang et al. 2013). Dissanayake et al. (2024) treated Diaporthe acerigena , D. albosinensis , D. coryli , D. fraxinicola , D. tibetensis , and D. ukurunduensis as the synonyms of D. citrichinensis . Phylogenetically, two isolates clustered together with D. citrichinensis with high support (100 % / 1 / 100 %) (Fig. 3 View Figure 3 ); the base pair similarity shows 100 % (471 / 471) on cal, 97.7 % (434 / 444) on his, 100 % (530 / 530) on ITS, 100 % (333 / 333) on tef 1 - α, and 100 % (480 / 480) on tub 2 compared to the ex-type of D. citrichinensis . Morphologically, alpha and beta conidia are similar to D. citrichinensis (6.0–10.0 × 1.5–3.0 vs. 5.5–9 × 1.5–2.5 μm) and (32–44 × 1–2 vs. 27.5–40 × 1–1.5 μm) (Table 1 View Table 1 ) ( Huang et al. 2013). In this study, D. citrichinensis was collected from the walnut plantation of Yunnan. This is the first report of D. citrichinensis occurring on J. regia .