Phaeobotryon aplosporum M. Pan & X.L. Fan, Mycol. Prog. 18(11): 1356 (2019)

Lin, Lu, Bai, Yukun, Pan, Meng, Tian, Chengming & Fan, Xinlei, 2023, Morphology and molecular analyses reveal three new species of Botryosphaeriales isolated from diseased plant branches in China, MycoKeys 97, pp. 1-19 : 1

Phaeobotryon aplosporum M. Pan & X.L. Fan, Mycol. Prog. 18(11): 1356 (2019)

Description.

See Pan et al. 2019.

Materials examined.

China, Beijing City, Mentougou District , Qingshui County, Baihuashan Natural Scenic Area , 39°51'11"N, 115°32'37"E, on dead branches of Juglans mandshurica , 23 August 2022, Lu Lin & Xinlei Fan (BJFC CF20230112, living culture CFCC 58596; BJFC CF20230113, living culture CFCC 58784) .

Notes.

Phaeobotryon aplosporum was first discovered from Rhus typhina and Syzygium aromaticum ( Pan et al. 2019). It can be distinguished from other species in Phaeobotryon by its aseptate conidia ( Pan et al. 2019). In this study, the conidia formed on the specimen BJFC CF20230112 are dark brick when mature, aseptate, (16.5-20.0 × 6.0-9.0 μm (av. ± S.D. = 18.3 ± 1.1 × 7.5 ± 0.8 μm), which overlap with the morphological characteristics described by Pan et al. (2019). Phylogenetically, the isolates CFCC 58596 and 58784 were clustered in a clade with Ph. aplosporum with high statistical support (ML/BI = 99/1). Therefore, the isolates CFCC 58596 and 58784 are identified as Ph. aplosporum . The current study extends its host range to Juglans mandshurica .