Fungalpedia – Note 1561, Lecanostictopsis

 

Lecanostictopsis B. Sutton & Crous, Mycol. Res. 101(2): 215 (1997)

Citation when using this entry: Chen C. et al. in prep. – An updated monograph of Coelomycetes, Mycosphere

Index Fungorum, Facesoffungi number, MycoBank, GenBank, Fig. 1           

Classification: Mycosphaerellaceae, Mycosphaerellales, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Endophytic, saprobic, or pathogenic on host plants. The sexual morph is undetermined. The asexual morph is characterised by acervulus to sporodochial conidiomata, which are epidermal to subepidermal, eustromatic and erumpent. The conidiomatal wall is comprised of textura angularis, with thick-walled, and dark brown to reddish brown cells. Conidiophores are dark to reddish brown, cylindrical, separate, and coarsely verrucose. Conidiogenous cells are enteroblastic and percurrent proliferation, integrated, cylindrical, dark to reddish brown, coarsely verruculose to tuberculate. Conidia are dark to reddish brown, holoblastic, eguttulate, cylindrical to fusiform, straight to curved, coarsely verrucose to tuberculate, 0–several -septate, apex obtuse to acute and base truncate (Sutton & Crous 1997, Crous 1998, Wijayawardene et al. 2016).

Notes: Lecanostictopsis was introduced by Sutton and Crous (1997) based on L. kamatii as the type species. Sutton and Crous (1997) introduced three Lecanostictopsis species s (L. kamatii, L. noumeaensis and L. syzygii), which were associated with leaf lesions on Syzygium species. The fourth species, L. eucalypti was introduced by Crous (1998). Lecanostictopsis was described belong to Mycosphaerellaceae only based on morphology (Sutton & Crous 1997). Subsequently, Crous et al. (2020) confirmed that Lecanostictopsis as an additional member of the Mycosphaerellaceae based on ITS and LSU datasets. Currently, there are four Lecanostictopsis species listed in Species Fungorum (September 2024) and a total of three ITS and LSU sequences available for L. syzygii in GenBank (September 2024). The updated taxonomic treatment of this genus is Mycosphaerellaceae, in Mycosphaerellales (Dothideomycetes) (Wijayawardene et al. 2022).

Type species: Lecanostictopsis kamatii (Ullasa) B. Sutton & Crous 1997.

Other accepted species: Species Fungorum – search Lecanostictopsis.

 

image

 

Figure 1 – Lecanostictopsis kamatii (e-drawn from Sutton & Crous 1997) a Vertical section of conidioma. b Different stages of conidiogenesis. c Conidia. Scale bars: a = 50 μm, b, c = 10 μm (Originally published in Wijayawardene et al. (2016) and republished with authority)

 

References

Sutton BC, Crous PW. 1997 – Lecanostictopsis gen. nov., and related leaf spotting fungi on Syzygium species. Mycological Research 101(2), 215–225.

Crous PW. 1998 – Mycosphaerella spp. and their anamorphs associated with leaf spot diseases of Eucalyptus. Mycologia Memoir 21, 1–170.

Crous PW, Schumacher RK, Wood AR, Groenewald JZ. 2020 – The Genera of Fungi–G5: Arthrinium, Ceratosphaeria, Dimerosporiopsis, Hormodochis, Lecanostictopsis, Lembosina, Neomelanconium, Phragmotrichum, Pseudomelanconium, Rutola, and Trullula. Fungal Systematics and Evolution 5(1), 77–98.

Wijayawardene NN, Hyde KD, Wanasinghe DN, Papizadeh M et al. 2016 – Taxonomy and phylogeny of dematiaceous coelomycetes. Fungal diversity 77, 1–316.

Wijayawardene NN, Hyde KD, Dai DQ, Sánchez-García ML et al. 2022 – Outline of Fungi and fungus-like taxa–2021. Mycosphere 13(1), 53–453.

 

Entry by Chao Chen1,2,3

Edited by Kevin D. Hyde1,3 & Ishara S. Manawasinghe1

 

1Innovative Institute for Plant Health, College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China.

2Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand.

3Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand; School of Science, Mae Fah Luang University, Chiang Rai, Thailand.

 

Published online 2024-September 30.

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