Diaporthe eres Nitschke, Pyrenomyc. Germ. 2: 245 (1870).

Bai, Yukun, Lin, Lu, Pan, Meng & Fan, Xinlei, 2023, Studies of Diaporthe (Diaporthaceae, Diaporthales) species associated with plant cankers in Beijing, China, with three new species described, MycoKeys 98, pp. 59-86 : 59

Diaporthe eres Nitschke, Pyrenomyc. Germ. 2: 245 (1870).

Remark.

Synonyms are listed in Hilário et al. (2021).

Description.

See Udayanga et al. (2014).

Specimens examined.

China, Beijing City, Mentougou District, Mountain Dongling , Xiaolongmen Forestry Centre , 39°59'59.42"N, 115°29'47.36"E, on twigs and branches of Populus sp., 15 Jun. 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121411, cultures CFCC 58839 and 58840); Tongzhou District , 39°52'53.52"N, 116°43'45.35"E, on twigs and branches of Acer palmatum , 11 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121412, culture CFCC 58835); Tongzhou District , 39°52'53.25"N, 116°43'46.26"E, on twigs and branches of Syringa oblata , 11 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121413, culture CFCC 58836); Tongzhou District , 39°52'53.28"N, 116°43'46.35"E, on twigs and branches of Pinus armandii , 11 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121414, cultures CFCC 58841 and 58842); Mentougou District , Mountain Dongling , Xiaolongmen Forestry Centre, 40°0'59.47"N, 115°29'47.34"E, on twigs and branches of Cotinus coggygria , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121415, culture CFCC 58837); Mentougou District , Mountain Dongling , Xiaolongmen Forestry Centre, 40°0'59.28"N, 115°29'47.44"E, on twigs and branches of Platycladus orientalis , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121415, culture CFCC 58838); Mentougou District , Mountain Baihua , 39°59'54.38"N, 115°29'44.34"E, on twigs and branches of Koelreuteria paniculata , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121416, culture CFCC 58833); Mentougou District , Mountain Baihua , 39°59'54.36"N, 115°29'44.35"E, on twigs and branches of Forsythia suspensa , 26 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121417, culture CFCC 58834); Mentougou District , Mountain Dongling , Xiaolongmen Forestry Centre, 39°59'59.31"N, 115°30'7.52"E, on twigs and branches of Juglans mandshurica , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121418, culture CFCC 58845); Mentougou District , Mountain Dongling , Xiaolongmen Forestry Centre, 40°0'59.36"N, 115°29'47.57"E, on twigs and branches of Pterocarya stenoptera , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121419, culture CFCC 58846); Fangshan District , Xiayunling National Forest Park, 39°44'35.32"N, 115°45'53.58"E, on twigs and branches of Prunus salicina , 23 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121420, cultures CFCC 58847 and 58848); Mentougou District , Mountain Dongling , Xiaolongmen Forestry Centre, 39°59'59.36"N, 115°29'47.57"E, on twigs and branches of Ailanthus altissima , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF2022121421, cultures CFCC 58831 and 58832); Mentougou District , Beijing Songshan National Nature Reserve, 40°30'18.55"N, 115°50'34.24"E, from branches of Corylus heterophylla , 17 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF202212146, cultures CFCC 58816 and 58817); Daxing District, Gusang National Forest Park, 39°38'48.25"N, 116°33'25.44"E, from branches of Populus sp., 6 Jun 2021, X.L. Fan & L. Lin (BJFC CF202212143, cultures CFCC 58818 and 58819); Mentougou District , Mountain Dongling , Xiaolongmen Forestry Centre, 40°0'16.22"N, 115°29'33.65"E, from branches of Spiraea salicifolia , 15 Jun 2022, Y.K. Bai & X.L. Fan (BJFC CF202212144, cultures CFCC 58826 and 58827) .

Notes.

Diaporthe eres was first described by Nitschke (1870) and isolated from Ulmus sp. in Germany. It is the most common species posing serious canker disease on diverse hosts ( Gomes et al. 2013; Udayanga et al. 2014). In this study, 22 isolates were associated with canker diseases of 14 hosts genera including nine new host records in Beijing, China, which clustered in the D. eres species complex (Fig. 1 ). Therefore, these isolates were conformed to belong to D. eres , based on sequence data and morphology.

Figures

Figure 1. Phylogenetic tree of Diaporthe resulting from a Maximum-Likelihood (ML) analysis, based on the concatenated sequences from ITS, cal, his 3, tef 1 - α and tub 2 genetic regions. Numbers above the branches indicate ML bootstraps (left, ML BS ≥ 50 %) and Bayesian posterior probabilities (right, BPP ≥ 0.90). The tree is rooted with Diaporthella corylina CBS 121124. Isolates from the present study are marked in blue and holotype isolates are indicated in bold.