Aplosporella javeedii Jami, Gryzenh., Slippers & M. J. Wingf.

Aplosporella javeedii Jami, Gryzenh., Slippers & M. J. Wingf. , Fungal Biology 118 (2): 174 (2013)

Fig. 11 View Figure 11

Description.

Sexual form: Not observed. Asexual form: Sporulation began after 2 weeks of cultivation on PDA medium. Conidiomata pycnidial, immersed to semi-immersed, grey-olivaceous, solitary, subglobose, 529–883 µm diam., pycnidial wall consists of dark brown textura angularis in the outer layers, gradually becoming paler in coloration towards the interior, with the innermost layers thinning and becoming hyaline and transparent. Conidiophores reduced to conidiogenous cells. Conidiogenous cells smooth, hyaline, elongate-ellipsoidal, thin-walled, gradually tapering toward the apex, 9.3–18.0 × 2.0–6.8 μm (av. ± S. D. = 12.2 ± 3.0 × 3.6 ± 1.1). Paraphyses long-cylindrical, 22.9–37.2 × 2.0–5.0 µm, hyaline, thin-walled, smooth, occasionally branched. Conidia initially hyaline, gradually turning pale brown to yellowish-brown, and finally dark brown at maturity, aseptate, ellipsoidal, 18.3–22.2 × 6.8–9.0 µm (av. ± S. D. = 19.9 ± 1.2 × 7.9 ± 0.5).

Cultural characteristics.

On PDA at 25 ° C under dark conditions, the colony reached approximately 60 mm in diameter after 7 days of incubation. The aerial mycelium was well-developed, appearing floccose and whitish-gray with sparse growth in the central region and denser growth at the periphery. After 20 days, the colony developed an olivaceous coloration, with abundant grayish-green aerial mycelium particularly concentrated near the marginal zone.

Specimens examined.

China • Beijing City, Changping District, Dingling, Ming Tombs Scenic Area , 40°17'23"N, 116°14'8"E, on the dead branches of Platycladus orientalis , 21 September 2024, Z. X. Bi, BJFC -S 2567 , living culture CFCC 72633 GoogleMaps ; China • Beijing City, Changping District, Dingling, Ming Tombs Scenic Area , 40°17'28"N, 116°14'31"E, on the healthy strobili of P. orientalis , 31 March 2025, Z. X. Bi, BJFC -S 2568 , living culture CFCC 72643 GoogleMaps .

Notes.

Aplosporella javeedii was first described by Jami et al. (2013) and isolated from healthy branches of Celtis africana and Searsia lancea . Fan et al. (2015) subsequently reported its first occurrence in China, where it was isolated from five host plants, including Juniperus chinensis , exhibiting stem canker symptoms. Additionally, A. javeedii has been identified as the causal agent of mulberry ( Morus alba ) branch blight disease ( Jia et al. 2019). According to literature records, this fungal species has now been documented across more than 10 plant families ( Fan et al. 2015; Zhu et al. 2018; Pan et al. 2019; Lin et al. 2023 b; Wu et al. 2024). Based on comprehensive phylogenetic and morphological analyses, strains CFCC 72633 and CFCC 72643 were identified as A. javeedii .