Fungalpedia – Note 2187, Diplodia

 

Diplodia. Fr.

Citation when using this data: Afshari N et al. 2025 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Botryosphaeriaceae, Botryosphaeriales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

 

Diplodia was erected by Montagne (1834), with D. mutila as the type species. Diplodia species exhibit pathogenic, saprobic, or endophytic lifestyles, affecting a wide variety of woody hosts, and are distributed worldwide (Crous et al. 2006, Slippers & Wingfield 2007, Jayawardena et al. 2019a). Both sexual and asexual morphs have been reported (Dissanayake et al. 2016). Two distinct conidial morphologies have been observed. In one type, conidia start as hyaline and aseptate, later transitioning to pale to dark brown and one-septate. In the other type, conidia become pigmented in their development, sometimes remaining aseptate even while enclosed within the pycnidia (Phillips et al. 2005, 2012). There are approximately 600 species of Diplodia recorded in Species Fungorum (2025). In this study, we report an additional collection of Diplodia guttulata from woody litter of Microcos paniculata.

 

Type species: Diplodia mutila (Fr.) Fr., Annls Sci. Nat., Bot., sér. 2 1: 349 (1834)

Other accepted species: Species Fungorum – search Diplodia.

 

image

 

Figure 1 – Diplodia guttulata (MFLU 24-0396, additional collection from dead wood). A Conidiomata on Microcos paniculata woody litter. b Longitudinal section of a conidioma. c, d Vertical section through conidiomata. e Conidiomatal wall. f, g Conidia attached to conidiogenous cells. h–m Conidia. n A germinated conidium. o Colonies on PDA (front and reverse). Scale bars: a = 1 mm, b = 200 μm, c = 100 μm, d, n = 50 μm, e–g = 20 μm, h–m = 10 μm.

 

References

Crous PW, Slippers B, Wingfield MJ, Rheeder J et al. 2006 – Phylogenetic lineages in the Botryosphaeriaceae. Studies in Mycology 55, 235–253.

Dissanayake AJ, Phillips AJ, Li XH, Hyde KD. 2016 – Botryosphaeriaceae: Current status of genera and species. Mycosphere 7, 1001–1073.

Jayawardena RS, Hyde KD, McKenzie EHC, Jeewon R et al. 2019a – One stop shop III: taxonomic update with molecular phylogeny for important phytopathogenic genera: 51–75. Fungal Diversity 97, 1–84.

Montagne JPFC. 1834 – Notice sur les plantes cryptogames récemment découvertes en France, contenant aussi l’indication précise des localités de quelques espèces les plus rares de la flore française. Annales des Sciences Naturelles Botanique 1, 295–307.

Phillips AJ, Lopes J, Abdollahzadeh J, Bobev S. 2012 – Resolving the Diplodia complex on apple and other Rosaceae hosts. Persoonia 29, 29–38.

Slippers B, Wingfield MJ. 2007 – Botryosphaeriaceae as endophytes and latent pathogens of woody plants: diversity, ecology and impact. Fungal Biology Reviews 21, 90–106.

Species Fungorum. 2025 – Available online: http://www.speciesfungorum.org/Names/Names.asp (accessed on 10 December 2025).

 

Entry by

Naghmeh Afshari, Department of Biology, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Center of Excellence in Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai 50200, Thailand

 

Published online 24 March 2026

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