Prillieuxina
Prillieuxina G. Arnaud, Annals d'École National d'Agric. de Montpellier, Série 2 16(1-4): 161 (1918) [1917]
≡Leprieurina G. Arnaud, Annals d’École Nationald’Agric. de Montpellier, Série 2 16(1-4): 210 (1918) [1917]
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: Asterinaceae, Asterinales, Dothideomycetidae, Dothideomycetes, Ascomycota, Fungi
Mostly epiphyllous, but also hypophyllous on the surface of leaves, forming minute, scattered, blackened areas. The mycelium is superficial, brown to dark brown, appressoria and epidermal hypostroma are present or absent. Prillieuxina can cause black mildew on many plants. The sexual morph is characterised by superfcial thyriothecia, which are fattened, dark brown to black, basal peridium poorly developed, with stellately dehisced at the centre, margin fimbriate. The upper wall is linear and composed of the compressed hyphae arranged radially from the center to the margin. Hamathecium lacking pseudoparaphyses. The appressoria and setae are absent. Asci are 8-spored, bitunicate, globose-subglobose, apedicellate, ocular chamber absent. Ascospores are overlapping 3–5-seriate, 1-septate, ellipsoidal with rounded ends, constricted at the septum, light brown to reddish-brown, smooth-walled. The asexual morph of Prillieuxina was previously known as Leprieurina which is characterised by pycnothyria with obovoid, brown to dark brown and 1-septum conidia. pycnothyria are similar to sexual morph. The conidiogenous cells are short, discrete, holoblastic, hyaline, and smooth. Conidia are obovoid, brown to dark brown, widest near the apex and tapering towards the lower end, 0–1-septate at lower cell, not constricted at the septum (Arnaud 1918, Hongsanan et al. 2014, Marasinghe et al. 2023).
Type species: Prillieuxina winteriana (Pazschke) G. Arnaud, Annals d'École National d'Agric. de Montpellier, Série 2 16(1-4): 162 (1918) [1917]
≡ Asterina winteriana Pazschke, Hedwigia 31(3): 104 (1892)
= Asterina annonicola Henn. [as ‘anonicola’], Hedwigia 41: 107 (1902)
≡ Asteridiella winteriana (Pazschke) Theiss., Brotéria, sér. bot. 10(2): 122 (1912)
= Leprieurina winteriana G. Arnaud, Annals d’École National d’Agric. de Montpellier, Série 2 16(1–4): 211(1918) [1917]
Notes: Prillieuxina was introduced by Arnaud (1918), and P. winteriana was treated as the type species (≡ Asterina winteriana). Doidge (1942) considered Prillieuxina to be a synonym for Asterinella. However, Wu (2011) found that peridium cells of Prillieuxina are not neatly arranged in parallel as in Microthyrium. For this reason, Von Arx and Müller (1975) considered Asterinella (Microthyriaceae) and Prillieuxina (Asterinaceae) as distinct genera. Leprieurina is a synonym for Prillieuxina. Hongsanan et al. (2014) reduced the asexual typified name Leprieurina and used the sexual typified name Prillieuxina by re-examining the herbarium specimen of P. winteriana. However, molecular data are very rare in Prillieuxina. Species Fungorum (September 2024) lists 63 species in Prillieuxina. There are 4 sequence data available for P. winteriana and P. baccharidincola in GenBank (September 2024). The updated taxonomic treatment of this genus is Asterinaceae, in Asterinales (Dothideomycetes) (Wijayawardene et al. 2022).
For all accepted species: see Species Fungorum, and search Prillieuxina.
Figure 1 – Prillieuxina winteriana (Material examined: Dominican Republic, on leaves of Annona sp., intercepted JFK International Airport, New York, 25 September 1979, D. Kepich, BPI 690983). a Herbarium label and specimens. b Conidiomata and ascomata on host material. c Surface view of conidioma. d–g Conidia attach to conidiogenous cells. h–l Conidia. Scale bars: c–l = 10 μm. (Originally published in Wijayawardene et al. (2016) and republished with authority)
References
Arnaud G. 1918 – Les Astérinées. Annales de l'École nationale d'Agricultur Montpellier 16(1–4), 127.
Doidge EM. 1942 – South African Microthyriaceae. Bothalia 4, 273–344.
Marasinghe DS, Hongsanan S, Zeng XY, Jones EBGet al. 2023 – Taxonomic monograph of epifoliar fungi. Fungal Diversity 121(1), 139-334.
Hongsanan S, Li YM, Liu JK, Hofmann T et al. 2014 – Revision of genera in Asterinales. Fungal diversity 68, 1–68.
Von Arx JA, Müller E. 1975 – A re-evaluation of the bitunicate ascomycetes with keys to families and genera. Studies in Mycology 9, 1–159.
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.
Wu X, Schoch CL, Boonmee S, Bahkali AH et al. 2011 – A reappraisal of Microthyriaceae. Fungal Diversity 51(1), 189–248.
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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