Diaporthe multiguttulata F. Huang, K.D. Hyde & Hong Y. Li, in Huang et al., Fungal Biology 119(5): 343. 2015.

Yang, Qin, Jiang, Ning & Tian, Cheng-Ming, 2021, New species and records of Diaporthe from Jiangxi Province, China, MycoKeys 77, pp. 41-64 : 41

publication ID

https://dx.doi.org/10.3897/mycokeys.77.59999

persistent identifier

https://treatment.plazi.org/id/FF202454-C6E7-5DAF-AFA6-F783DE9AA27A

treatment provided by

MycoKeys by Pensoft

scientific name

Diaporthe multiguttulata F. Huang, K.D. Hyde & Hong Y. Li, in Huang et al., Fungal Biology 119(5): 343. 2015.
status

 

Diaporthe multiguttulata F. Huang, K.D. Hyde & Hong Y. Li, in Huang et al., Fungal Biology 119(5): 343. 2015. Figure 6 View Figure 6

Description.

Conidiomata pycnidial, 692-750(-800) μm diam., solitary and with single necks erumpent through host bark. Tissue around neck is cylindrical. Locule circular, undivided, 450-565(-600) μm diam. Conidiophores reduced to conidiogenous cells. Conidiogenous cells unbranched, straight or slightly curved, apical or base sometimes swelling, (8.5-)9-10.5(-11) × 1.5-2 μm. Alpha conidia hyaline, aseptate, ellipsoidal, biguttulate or with one large guttulate, rounded at one end, slightly apex at the other end, occasionally submedian constriction, (7.5-)8-9(-10.5) × 4-5(-5.5) μm. Beta conidia not observed.

Culture characters.

Colony originally flat with white felty aerial mycelium, becoming pale green mycelium with age, margin area irregularly, with visible solitary conidiomata at maturity.

Specimens examined.

China. Jiangxi Province: Ganzhou City, on branches of Citrus maxima , 25°51'28"N, 114°55'19"E, 11 May 2018, Q. Yang, Y. Liu & Y.M. Liang (BJFC-S1614; living culture: CFCC 53095, CFCC 53096 and CFCC 53097).

Notes.

Diaporthe multiguttulata was originally described as an endophyte from a healthy branch of Citrus grandis in Fujian Province, China ( Huang et al. 2015). In the present study, three isolates (CFCC 53095, CFCC 53096 and CFCC 53097) from symptomatic branches of Citrus maxima were congruent with D. multigutullata , based on DNA sequence data and confirmed from the morphological analysis (Fig. 1 View Figure 1 ). The clade, therefore, was verified as D. multigutullata which could exist both as an endophyte and a pathogen.